US3306365A - Well bore testing and displacing valve apparatus - Google Patents

Well bore testing and displacing valve apparatus Download PDF

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US3306365A
US3306365A US279911A US27991163A US3306365A US 3306365 A US3306365 A US 3306365A US 279911 A US279911 A US 279911A US 27991163 A US27991163 A US 27991163A US 3306365 A US3306365 A US 3306365A
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tubular member
port
valve
sleeve
tubing string
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US279911A
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Jr Archer W Kammerer
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Baker Hughes Oilfield Operations LLC
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Baker Oil Tools Inc
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/06—Valve arrangements for boreholes or wells in wells
    • E21B34/14—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools
    • E21B34/142—Valve arrangements for boreholes or wells in wells operated by movement of tools, e.g. sleeve valves operated by pistons or wire line tools unsupported or free-falling elements, e.g. balls, plugs, darts or pistons

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Description

A. w. KAMMERER, JR 3,306,365
2v 'sheets-sheet 1 WELL BORE TESTING AND DISPLACINGv VALVE APPARATUS Feb. 28, 1967 Filed May 13, 1963 INVENTOR MMEQEQ, fle.
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Feb. 28, 1967 A. w. KAMMERER, JR 3,306,365
WELL BORE TESTING AND DISPLACING VALVE APPARATUS Filed May l5, 1963 2 Sheets-Sheet 2 4J n w I N VENTOR.
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BY www 7 l 7 2 d. l 3 5 :Pw .d A 2m 2 d. 5
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United States Patent Oflce 3,306,365 WELL BORE TESTING AND DISPLACING VALVE APPARATUS Archer W. Kammerer, Jr., Houston, Tex., assignor to Baker Oil Tools, Inc., Los Angeles, Calif., a corporation of California Filed May 13, 1963, Ser. No. 279,911 16 Claims. (Cl. 166-224) The present invention relates to subsurface wel] bore apparatus, and more particularly to valve apparatus for controlling flow of fluids in the well bore in the periormance of operations .therewithin An object of the invention is to provide valve apparatus yadapted to be incorporated in a tubing string disposed in a well bore in connection with a Well packer set therewithin, which enables testing of the packer t-o lbe performed after the surface connections to the tubing string have been made at the top of the well bore, and without the necessity for moving the tubing string.
Another object of the invention is to provide valve apparatus of the character indicated, which enables tluid to be circulated in the well bore after the packer testing has been performed without the need for moving the tubing string in the well bore.
A further object of the invention is to provide valve apparatus adapted to be incorporated in a tubing string disposed in the well bore in connection with la well packer se-t therewithin, the valve apparatus being closed to permit testing of the packer by imposing pressure on the fluid in the annulus surrounding the tubing string, such pressure being incapable of shifting the valve apparatus to closed position, the valve apparatus being readily opened merely by imposing pressure on t'he lluid in the tubing string, whereupon the valve Iapparatus can be reclosed by irnposing pressure on the lluid in the tubing string, the passage through the valve apparatus being open or unobstructed after its reclosing.
'Ihis invention possesses many other advantages, and has other objects which may be made more clearly apparent from a considerati-on of a form in which it may be embodied. This form is shown in the drawings accompanying and forming part of the present specification. It will now be described in detail, for the purpose of illustrating the general principles of the invention; but it is to be runderstood that such detailed description is not to be taken in a limiting sense, since the scope of the invention is best defined by the appended claims.
Referring to the drawings:
FIGURE 1 is a longitudinal section through a valve apparatus connected to a tubing string and well packer disposed in a well bore or casing, with the valve 'apparatus in its initial closed position;
FIG. 2 is an enlarged longitudinal section similar to FIG. 1, illustrating the valve apparatus in an open condition;
FIG. 3 is a view similar to FIG. 2 illustrating the valve apparatus in its reclosed condition;
FIG. 4 is an enlarged cross-section taken along the line 4-4 on FIG. 1;
FIG. 5 is an enlarged cross-section taken along the line 5-5 on FIG. l;
FIG. 6 is an enlarged cross-section taken along the line 6-6 on FIG. l.
As illustrated in the drawings, a valve apparatus A is incorporated in a tubing string 'B disposed in a well casing C Within a well bore, the tubing string extending to the top of the hole. The lower portion of the valve apparatus is illustrated as being placed in association with a well packer D anchored in packed-off condition in the well casing. Tshe well packer .can be of any suitable type.
The valve apparatus A includes an elongate housing or Patented Feb. Z8, 1967 outer tubular member 10 having a lower threaded pin 11 that enables the housing to be secured directly to the well packer, or to an intervening length of tubing secured t0 or otherwise associated with the well packer in leakproof relation with respect thereto. As specifically illustrated by way of example, the lthreaded pin is threadedly secured to a collar 12 that is threaded on to the upper end of the tubular body 13 of the well packer D which has suitable slips or gripping members 14 and a packing structure 15 mounted on it for engagement with the wall of the well casing C. The well packer may have a passage 16 extending therethrough to permit Iwell production to flow into the packer and through the housing 10 and tubing string B to the top of the well bore.
The outer tubular member or housing 10` includes a housing sub 17 threadedly secured to the upper portion of the main body 18 of the tubular member, this sub having a threaded box 19 for threadedly receiving the :lower threaded pin 20 of a tubing section 21, this section constituting part of the tubing string B extending to the top of the well bore. The outer member 10 has a plurality of side ports 22 providing communication between its interior and exterior, which side ports are closed initially by a lower differential valve sleeve 23 slidable longitudinally within the tubular member. The valve sleeve is disposed below an upper valve sleeve 24 Ithat has a shoulder 25 engaging the lower end 26 of the housing sub or yupper section 17, the upper valve sleeve being held initially in such position by one or a plurality of shear screws 27 attaching it to the sub. Integral with the valve sleeve 24 are a plurality of upwardly extending flexible arms 28 terminating in outwardly projecting fingers 29 disposed initially within the restricted diameter bore 30 of the housing sub, the inwardly projecting fingers providing a seat 31 for a valve element 32, such as a ball, adapted to be lowered or pumped down the tubing string into engagement therewith. The arms 28 and ngers 29 inherently tend to spring outwarly, but are conned initially by the wall 30 of the housing sub 17, so as to project inwardly of the central passage 33 through the sub and sleeve 24.
The upper valve sleeve 24 has an external diameter 34 conforming to the internal diameter 35 of the tubular member on opposite sides of its .ports 22, there being a suitable seal ring 36 mounted on the lower portion of the upper valve sleeve adapted to slidably seal against the wall 35 of the tubular member on opposite sides of its ports 22. The bore 37 through the Itubular member 10 below the housing sub 17 is enlarged in diameter to prevent any sealing action by an upper seal ring 38, mounted on the upper valve sleeve 24, with the tubular member when the upper valve sleeve is in its upper position, thereby preventing the existence of any pressure differentials upon the upper seal ring 38 and the lower seal ring 36 that might deform such rings and resist movement of the upper sleeve valve 24 in the tubular member. The upper seal ring 38, however, is adapted to slidably seal with the inner wall portion 35 of the tubular member when the upper sleeve valve 24 is shifted downwardly across the ports 22, as described hereinbelow.
The lower dilferential sleeve valve member 23 is disposed initially across the ports 22 to close the same. A-s shown in FIG. 1, its upper end 39 .is adapted toengage the lower end 40 of the upper valve sleeve, which will preclude upward movement of the lower valve sleeve 23 within the tubular member, since the upper valve sleeve shoulder 25 is engaging the stop shoulder 26 provided by the housing sub. Initially, downward movement of the lower valve sleeve is prevented by one or a plurality of shear screws 41 extending into a bore or groove 42 in the lower valve sleeve and secured to a shearing ring 43 resting upon an inwardly directed llange or valve seat 44 projecting inwardly of the tubular member 10. The lower valve sleeve 23 includes an upper valve head 46 which initially engages the wall 35 of the tubular member above the side ports 22, and also a lower valve head portion 47 that initially engages the cylindrical seat 44 of the tubular member. A suitable seal `ring 48 is mounted on the upper head 46 for slidable sealing engagement with the inner wall 35 of the tubular member; whereas, the lower cylindrical valve seat 44 carries a suitable seal ring 49 engaging the periphery of the lower valve head 47. With the valve sleeve in its position illustrated in FIG. l, any fluid under pressure within the tubular member is acting `downwardly on the `sleeve 23 over the annular a-rea R of the upper valve head, and is acting upwardly over the annular area S of the lower valve head, the annular area R being greater than the annular area S by the differential area T indicated as being the area of the underside of the upper valve head (FIG. 1). Below the cylindrical valve seat 44, the internal diameter 50 of the outer tubular member or housing 10 is enlarged, for the purpose that will be described herein-below. Between the upper and lower heads 46, 47, the exterior of the lower differential valve sleeve is provided with a plurality of longitudinal bleeder or by-pass grooves 51.
The valve apparatus A forms part of the tubing string B, its parts being arranged initially in the relative positions illustrated in FIG. 1, in which the lower differential valve sleeve 23 is disposed across the side ports 22 to close the same. Downward movement of the differential valve sleeve is prevented by the shear screw or screws 41 and the shearing ring 43 engaging the lower valve seat 44, whereas upward movement of the lower sleeve valve is prevented by its engagement with the upper valve Sleeve 24, which, in turn, is shouldered against the housing sub 17. The ball seat fingers 29 project inwardly of the housing sub passage.
The tubing string B is placed in association with the packer D, which is anchored in packed-off condition against the well casing C. Appropriate connections (not shown) to the tubing string B and casing C are made at the top of the `well bore. The testing of the packer D can now take place by imposing pressure on the liquid in the annulus 60 between the tubing string and casing. The fluid pressure passes through the ports 22 and acts on the underside 70 of the head of the sleeve valve over the differential area T, tending to shift the lower valve 23 upwardly. However, such shifting cannot occur since the lower valve sleeve abuts the upper valve sleeve 24, which, in turn, abuts the lower end 26 of the housing sub 17. Any 4desired test pressures can be imposed on the fluid or liquid in the tubing-casing string annulus 60 to pressure test the well packer, without such pressure being capable of shifting the lower differential valve sleeve 23 to port opening position.
After the well packer D has been tested, it is desired to displace the fluid in the `well casing. It is only necessary to impose pressure on the fluid or liquid in the tubing string B, whichwill act downwardly on the differential valve 23 over the area T (R minus S), and when such pressure is sufficient to overcome the shear strength of the screws 41, the latter are disrupted and .the lower valve 23 is shifted downwardly to the position illustrated in FIG. 2, in which the shearing ring 43 rests upon the lower cylindrical valve seat 44 and the upper valve head 46 engages the shearing ring. During such downward shifting, fluid is not trapped between the upper valve head 46 and the lower cylindrical seat 44 since the bypass or bleeder grooves 51 extend from a position above the cylindrical valve seat to a position therebelow after the valve head 46 has shifted below the side ports 22. Accordingly, the fluid below the upper head 46 can move downwardly around the outside of the valve sleeve and into the central passage of the tubular member 10.
The valve apparatus is now in the open condition illustrated in FIG. 2, and circulating fluid can be pumped down through the tubing string B for upward passage through the open ports 22 and return flow through the tubing-casing annulus 60 to the top of the well bore. During the shifting of the differential sleeve valve 23 downwardly to port opening position, movement of the tubing string B, or disturbing of the surface connections at the top of the well bore to the tubing string and the well casing, is unnecessary.
After circulation has been completed, it is desired to reclose the side ports 22 through the tubular member 10. This action is performed by dropping a suitable valve element 32, such as a ball, of an appropriate diameter into the tubing string B and pumping the ball or allowing it to gravitate down through the tubing string into engagement with the valve seat 31 afforded by the inwardly projecting fingers 29. When the ball engages such seat, pressure can be built up in the `fluid or liquid in the tubing string B sucient to overcome the shear strength of the screws 27 releasably securing the upper valve sleeve 24 to the housing sub 17. Upon shearing of such screws, the upper sleeve valve 24 is shifted downwardly to a position in which its lower end 40 engages the upper end 39 of the lower sleeve valve 23, the fingers 29 moving out of the restricted housing passage 30 and into the enlarged diameter portion 37 of the tubular member, the arms 28 and fingers 29 inherently springing outwardly to an effective diameter greater than the diameter of the ball valve element 32, allowing the latter to drop downwardly through the sleeve valves 24, 23 and the well packer D into the well bore therebelow. The valve element 29 springs outwardly below the housing shoulder 26, `which will preclude inadvertent return movement of the upper sleeve valve 24 toward its initial position, insuring its retention in closed position across the side ports 22, with its upper and lower seals 38, 36 engaging the wall 35 of the tubular member on opposite sides of the ports (FIG. 3). The application of pressure to the fluid in the tubing string B has effected downward shifting of the upper valve closing sleeve 24. It is unnecessary to disturb any connections to the tubing string at the top of the well bore.
I claim:
1. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve member in said tubular member disposed initially above said port; a lower valve member in said tubular member disposed initially across said port to close the same, said lower member including an upper head .portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower valve member subject to the pressure of fluid in the tubular member tending to shift said lower member downwardly in the tubular member to port opening position; and means for shifting said upper valve member downwardly in said tubular member to port closing position.
2. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having -a side port; an upper valve member in said tubular member disposed initially above said port and engaged with said tubular member to prevent upward movement of said upper valve member therewithin; a lower valve member in said tubular member disposed initially across said port to close the same and adapted to engage said upper member to prevent upward movement of said lower member in said tubular member to port opening position; said lower member including an upper head portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower valve member subject to the pressure of fluid in the tubular member tending to shift said lower member downwardly in the tubular member to port opening position; and means for shifting said upper valve member downwardly in said tubular member to port closing position.
3. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve member in said tubular member disposed initially above said port; first releasable means releasably securing said upper valve member to said tubular member in said initial positi-on; a lower valve member in said tubular member disposed initially across said port to close the same; second releasable means preventing downward movement of said lower valve member; said lower valve member including an upper head portion in sealing relation to said tubul-ar member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower member subject to the pressure of fluid in the tubular member tending to release said second releasable means and shift said lower member downwardly in the tubular member to port opening position; and means for releasing said first releasable means and for shifting said upper valve member downwardly in said tubular member to port closing position.
4. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve member in said tubular member disposed initially above said port and engaged with said tubular member to prevent upward movement of said upper valve member therewithin; first releasable means releasably securing said upper valve member to said tubular member to prevent downward movement of said upper valve member from said initial position; a lower valve member in said tubular member disposed initially across said port to close the same and ad-apted t-o engage said upper member to prevent upward movement of said lower member in said tubular member to port opening position; second releasable means preventing downward movement of said lower valve member; said lower valve member including an upper head portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion havingan upwardly facing tot-al transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said -lower head portion subject to uid pressure in said tubular member to provide 'a differential `area on said lower member subject to the pressure of fluid in the tubular member tending to `release said second releasable means and shift said lower member downwardly in the tubular member to port opening position; and means for releasing said first releasable means yand for shifting said upper valve member downwardly in said tubular member to port closing position.
5. In subsurface valve apparatus adapted for connection t-o a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve sleeve in said tubular member disposed initially above said port; a lower -valve sleeve in said tubular member disposed initially across said port to close the same, s-aid lower sleeve including `an upper head portion in sealing relation to said tubular member above said port and a lower -head portion in sealing relation to said tubular member below said port, the upper yhead portion having an upwardly facing total transverse area subject to fiuid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower sleeve subject to the pressure of fluid in the tubular member tending to shift said lower sleeve downwardly in the tubular member to port opening position; and means for shifting sa-id lupper valve lsleeve downwardly in said tubular member to port closing position.
6. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve sleeve in said tubular member disposed initially above said port and engaged with said tubular member to prevent upward movement of said upper valve sleeve therewithin; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position, said lower sleeve including an upper head portion in sealing relation to said tubular member above said port and a lower portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to uid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pres-sure in said tubular member to provide a differential area on said lower sleeve subject to the pressure of fluid in the tubular member tending to shift said lower sleeve downwardly in the tubular member to port opening position; and means for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
7. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve sleeve in said tubular member disposed initially above said port and engaged with said tubular member to prevent upward movement of said upper valve sleeve therewithin; first releasable means releasably securing said upper valve sleeve to said tubular member in said initial position; a lower valve sleeve in said tubular member disposed initially across said port to close the same; second releasable means preventing downward movement of said lower Valve sleeve; said lower valve sleeve including an upper head portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to fiuid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower sleeve subject to the pressure of fiuid in the tubular member tending to release said second releasable means and shift said lower sleeve downwardly in the tubular member to port opening position; and means for releasing said first releasable means and for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
8. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion; an upper valve sleeve in said tubular member disposed initially above said port and having an external diameter conforming to the internal diameter of said first portion; a lower valve sleeve in said tubular member disposed initially across said port to close the same, said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of fiuid in the tubular member tending to shift said lower sleeve downwardly in the tubular member to port opening position; and means for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
9. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion; an upper valve sleeve in said tubular member disposed initially above said port and engageable with said tubular member to prevent upward movement of said upper valve sleeve therewithin, said upper sleeve having an external diameter conforming to the internal diameter of said first portion; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position; said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of fiuid in the tubular member to shift said lower sleeve downwardly in the tubular member to port opening position; and means for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
10. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion; an upper valve sleeve in said tubular member disposed initially above said port and engageable with said tubular member to prevent upward movement of said upper valve sleeve therewithin and having an external diameter conforming to the internal diameter of said first portion; first releasable means releasably securing said upper valve sleeve to said tubular member in said initial position and against downward movement in said tubular member; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position; second releasable means preventing downward movement of said lower sleeve; said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of fluid in the tubular member tending to release said second releasable means and shift said lower sleeve downwardly in the tubular member to port opening position; and means for releasing said first releasable .means and for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
11. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore; a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion; an upper valve sleeve in said tubular member disposed initially above said port and engageable with said tubular member to prevent upward movement of said upper valve sleeve therewithin and having an external diameter conforming to the internal diameter of said first portion; frangible means releasably securing said upper valve sleeve to said tubular member in said initial position and against downward movement in said tubular member; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position; means including frangible instrumentalities connected to said lower sleeve and resting upon the upper end of said second portion releasably holding said lower sleeve in closed position across said port; said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of iiuid in the tubular member tending to disrupt said frangible instrumentalities and shift said lower sleeve downwardly in the tubular member to port opening position; and means for disrupting said frangible means and for shifting said upper valve sleeve downwardly in said tubular member to port closing position.
12. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be Connected to the tubing string and having a side port; an upper valve member in said tubular member disposed initially above said port; a lower valve member in said tubular member disposed initially across said port to close the same, said lower member including an upper head portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having an upwardly facing total transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower valve member subject to the pressure of fluid in the tubular member tending to shift said lower member downwardly in the tubular member to port opening position; said lower valve member having an external longitudinal bleeder groove extending from positions adjacent to said upper and lower head portions; and means for shifting said upper valve member downwardly in -said tubular member to port closing position.
13. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion; an upper valve sleeve in said tubular member disposed initially labove said port and having an external diameter conforming to the internal diameter of said first portion; a lower valve sleeve in said tubular member disposed initially across said port to close the same, said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of fluid in the tubular member tending to shift said lower sleeve downwardly in the tubular member to port opening position; said lower valve sleeve having an external longitudinal bleeder groove extending from positions adjacent to said upper and lower head portions; means for shifting said upper valve sleeve downwardly in said tubular member to port closing position; the lower end of said bleeder groove moving below said second portion to allow fluid to pass through said groove from the region in said tubular member below said upper head portion to a region below said second portion.
14. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; an upper valve member in said tubular member-disposed initially above said port and engaged with a transverse shoulder of said tubular member to prevent upward movement of said upper valve member therewithin; a lower valve member in said tubular member disposed initially across said port to close the same and adapted to engage said upper member to prevent upward movement of said lower member in said tubular member to port opening position; said lower member including an upper head portion in sealing relation to said tubular member above said port and a lower head portion in sealing relation to said tubular member below said port, the upper head portion having a upwardly facing total transverse area subject to fluid pressure in said tubular member greater than the downwardly facing total transverse area of said lower head portion subject to fluid pressure in said tubular member to provide a differential area on said lower valve member subject to the pressure of fluid in the tubular member tending to shift said lower member downwardly in the tubular member to port opening position; said upper valve member having outwardly expandible fingers held initially inwardly by said tubular member above said shoulder; and means movable down the tubing string into engagement with said fingers to shift said upper valve member downwardly in said tubular member to port closing position and to locate said fingers below said shoulder to prevent upward movement of said unrJer member in said tubular member.
15. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member `adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion, said tubular member also having a downwardly facing shoulder above said first portion; an upper valve sleeve in said tubular member disposed initially above said portand engageable with said shoulder to prevent upward movement of said upper valve sleeve therewithin, said upper sleeve having an external diameter conforming to the internal diameter of said first portion; frangible means releasably securing said upper valve sleeve to said tubula-r member in said initial position; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position; means including frangible instrumentalities connected to said lowe-r sleeve and resting upon the upper end of said second portion to releasably hold said lower sleeve in closed position across said port; said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of fluid in the tubular member tending to disrupt said frangible instrumentalities and shift said lower sleeve downwardly in the tubular member to port opening position; said upper valve sleeve having outwardly expandible fingers held initially inwardly by said tubular member above said shoulder; and means movable down the tubing string into engagement with said fingers to disrupt said frangible means and to shift said upper valve sleeve downwardly in said tubular member to port closing position and to locate said fingers below said shoulder to prevent upward movement of said upper sleeve in said tubular member.
16. In subsurface valve apparatus adapted for connection to a tubing string to be disposed in a well bore: a tubular member adapted to be connected to the tubing string and having a side port; said tubular member having a first portion above and below said port of a particular internal diameter and a second portion substantially below said port of an internal diameter smaller than the internal diameter of said first portion, said tubular member also having a downwardly facing shoulder above said first portion; an upper valve sleeve in said tubular member disposed initially above said port and engageable with said shoulder to prevent upward movement of said upper valve sleeve therewithin, said upper sleeve having an external diameter conforming to the internal diameter of said first portion; frangible means releasably securing said upper valve sleeve to said tubular member in said initial position; a lower valve sleeve in said tubular member disposed initially across said port to close the same and adapted to engage said upper sleeve to prevent upward movement of said lower sleeve in said tubular member to port opening position; means including frangible instrumentalities connected to said lower sleeve and resting upon the upper end of said second portion to releasably hold said lower sleeve in closed position across said port; said lower sleeve including an upper head portion in sealing relation to said first portion above said port and a lower head portion in sealing relation to said second portion, said upper and lower head portions providing a differential area on said lower sleeve subject to the pressure of uid in the tubular member tending to disrupt said frangible instrumentalities and shift said lower sleeve downwardly in the tubular membe-r to port opening position; said lower valve sleeve having an external longitudinal bleeder groove extending from positions adjacent to said upper and lower head portions, whereby downward movement of said lower sleeve places the lower end of said groove below said second portion to establish fluid communication through said groove between the lregion in said tubular member above said second portion and the region therewithin below said second portion; said upper valve sleeve having outwardly expandible fingers held initially inwardly by said tubular member a'bove said shoulder; and means movable down the tubing string into engagtment with said fingers to disrupt said frangible mean-s and to shift said -upper valve sleeve downwardly in said tubular member to port cl-osing position and to locate said fingers below said shoulder to prevent upward movement of said upper sleeve in said tubular member.
References Cited by the Examiner UNITED STATES PATENTS 2,627,314 2/1953 Baker et al l66-224 X 2,998,075 8/ 1961 Clark 166-224 X 3,054,415 9/ 1962 Baker et al. 166-224 X 3,094,307 6/ 1963 Alley 166-224 X CHARLES E. OCONNELL, Primary Examiner.
C. D. JOHNSON, D. H. BROWN,
Assistant Examiners.

Claims (1)

1. IN SUBSURFACE VALVE APPARATUS ADAPTED FOR CONNECTION TO A TUBING STRING TO BE DISPOSED IN A WELL BORE: A TUBULAR MEMBER ADAPTED TO BE CONNECTED TO THE TUBING STRING AND HAVING A SIDE PORT; AN UPPER VALVE MEMBER IN SAID TUBULAR MEMBER DISPOSED INITIALLY ABOVE SAID PORT; A LOWER VALVE MEMBER IN SAID TUBULAR MEMBER DISPOSED INITIALLY ACROSS SAID PORT TO CLOSE THE SAME, SAID LOWER MEMBER INCLUDING AN UPPER HEAD PORTION IN SEALING RELATION TO SAID TUBULAR MEMBER ABOVE SAID PORT AND A LOWER HEAD PORTION IN SEALING RELATION TO SAID TUBULAR MEMBER BELOW SAID PORT, THE UPPER HEAD PORTION HAVING AN UPWARDLY FACING TOTAL TRANSVERSE AREA SUBJECT TO FLUID PRESSURE IN SAID TUBULAR MEMBER GREATER THAN THE DOWNWARDLY FACING TOTAL TRANSVERSE AREA OF SAID LOWER HEAD PORTION SUBJECT TO FLUID PRESSURE IN SAID TUBULAR MEMBER TO PROVIDE A DIFFERENTIAL AREA ON SAID LOWER VALVE MEMBER SUBJECT TO THE PRESSURE OF FLUID IN THE TUBULAR MEMBER TENDING TO SHIFT SAID LOWER MEMBER DOWNWARDLY IN THE TUBULAR MEMBER TO PORT OPENING POSITION; AND MEANS FOR SHIFTING SAID UPPER VALVE MEMBER DOWNWARDLY IN SAID TUBULAR MEMBER TO PORT CLOSING POSITION.
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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356140A (en) * 1965-07-13 1967-12-05 Gearhart Owen Inc Subsurface well bore fluid flow control apparatus
US3527297A (en) * 1969-02-17 1970-09-08 Jerry L Pinkard Stage cementer
US3768556A (en) * 1972-05-10 1973-10-30 Halliburton Co Cementing tool
US3823778A (en) * 1971-04-30 1974-07-16 Hydril Co Method of completing a well using a completion and kill valve
US3856082A (en) * 1973-03-26 1974-12-24 Macco Oil Tool Co Inc Selective positioning well tool apparatus
US3878889A (en) * 1973-02-05 1975-04-22 Phillips Petroleum Co Method and apparatus for well bore work
US4246968A (en) * 1979-10-17 1981-01-27 Halliburton Company Cementing tool with protective sleeve
US4266614A (en) * 1979-07-12 1981-05-12 Otis Engineering Corporation Valve
US4280561A (en) * 1979-07-02 1981-07-28 Otis Engineering Corporation Valve
US4355686A (en) * 1980-12-04 1982-10-26 Otis Engineering Corporation Well system and method
US4429747A (en) 1981-09-01 1984-02-07 Otis Engineering Corporation Well tool
FR2553819A1 (en) * 1983-10-19 1985-04-26 Petroles Cie Francaise PRODUCTION TUBE AND CONNECTION FOR PRODUCTION TUBE, FACILITATING COMPLETION OF OIL WELL
US4828037A (en) * 1988-05-09 1989-05-09 Lindsey Completion Systems, Inc. Liner hanger with retrievable ball valve seat
US5048611A (en) * 1990-06-04 1991-09-17 Lindsey Completion Systems, Inc. Pressure operated circulation valve
US20070163776A1 (en) * 2003-11-21 2007-07-19 Sorensen Tore H Device of a test plug
US9963962B2 (en) 2001-11-19 2018-05-08 Packers Plus Energy Services Inc. Method and apparatus for wellbore fluid treatment
US10030474B2 (en) 2008-04-29 2018-07-24 Packers Plus Energy Services Inc. Downhole sub with hydraulically actuable sleeve valve
US11434735B2 (en) * 2017-03-07 2022-09-06 Ncs Multistage Inc. Apparatuses, systems and methods for producing hydrocarbon material from a subterranean formation
US20220325607A1 (en) * 2021-04-08 2022-10-13 Baker Hughes Oilfield Operations Llc Top down frac sleeve, method and system

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US2627314A (en) * 1949-11-14 1953-02-03 Baker Oil Tools Inc Cementing plug and valve device for well casings
US2998075A (en) * 1957-07-29 1961-08-29 Baker Oil Tools Inc Subsurface well apparatus
US3054415A (en) * 1959-08-03 1962-09-18 Baker Oil Tools Inc Sleeve valve apparatus
US3094307A (en) * 1960-01-15 1963-06-18 Thomas R Alley Circulating valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627314A (en) * 1949-11-14 1953-02-03 Baker Oil Tools Inc Cementing plug and valve device for well casings
US2998075A (en) * 1957-07-29 1961-08-29 Baker Oil Tools Inc Subsurface well apparatus
US3054415A (en) * 1959-08-03 1962-09-18 Baker Oil Tools Inc Sleeve valve apparatus
US3094307A (en) * 1960-01-15 1963-06-18 Thomas R Alley Circulating valve

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3356140A (en) * 1965-07-13 1967-12-05 Gearhart Owen Inc Subsurface well bore fluid flow control apparatus
US3527297A (en) * 1969-02-17 1970-09-08 Jerry L Pinkard Stage cementer
US3823778A (en) * 1971-04-30 1974-07-16 Hydril Co Method of completing a well using a completion and kill valve
US3768556A (en) * 1972-05-10 1973-10-30 Halliburton Co Cementing tool
US3878889A (en) * 1973-02-05 1975-04-22 Phillips Petroleum Co Method and apparatus for well bore work
US3856082A (en) * 1973-03-26 1974-12-24 Macco Oil Tool Co Inc Selective positioning well tool apparatus
US4280561A (en) * 1979-07-02 1981-07-28 Otis Engineering Corporation Valve
US4266614A (en) * 1979-07-12 1981-05-12 Otis Engineering Corporation Valve
US4246968A (en) * 1979-10-17 1981-01-27 Halliburton Company Cementing tool with protective sleeve
US4355686A (en) * 1980-12-04 1982-10-26 Otis Engineering Corporation Well system and method
US4429747A (en) 1981-09-01 1984-02-07 Otis Engineering Corporation Well tool
FR2553819A1 (en) * 1983-10-19 1985-04-26 Petroles Cie Francaise PRODUCTION TUBE AND CONNECTION FOR PRODUCTION TUBE, FACILITATING COMPLETION OF OIL WELL
US4828037A (en) * 1988-05-09 1989-05-09 Lindsey Completion Systems, Inc. Liner hanger with retrievable ball valve seat
US5048611A (en) * 1990-06-04 1991-09-17 Lindsey Completion Systems, Inc. Pressure operated circulation valve
US9963962B2 (en) 2001-11-19 2018-05-08 Packers Plus Energy Services Inc. Method and apparatus for wellbore fluid treatment
US20070163776A1 (en) * 2003-11-21 2007-07-19 Sorensen Tore H Device of a test plug
US7712521B2 (en) * 2003-11-21 2010-05-11 Tco As Device of a test plug
US10030474B2 (en) 2008-04-29 2018-07-24 Packers Plus Energy Services Inc. Downhole sub with hydraulically actuable sleeve valve
US10704362B2 (en) 2008-04-29 2020-07-07 Packers Plus Energy Services Inc. Downhole sub with hydraulically actuable sleeve valve
US11434735B2 (en) * 2017-03-07 2022-09-06 Ncs Multistage Inc. Apparatuses, systems and methods for producing hydrocarbon material from a subterranean formation
US20230018187A1 (en) * 2017-03-07 2023-01-19 Ncs Multistage Inc. Apparatuses, systems and methods for producing hydrocarbon material from a subterranean formation
US11821286B2 (en) * 2017-03-07 2023-11-21 Ncs Multistage Inc. Apparatuses, systems and methods for producing hydrocarbon material from a subterranean formation
US20220325607A1 (en) * 2021-04-08 2022-10-13 Baker Hughes Oilfield Operations Llc Top down frac sleeve, method and system

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