WO2005100732A1 - A telescopic conductor casing for a well installation and a method of driving same into the underground - Google Patents
A telescopic conductor casing for a well installation and a method of driving same into the underground Download PDFInfo
- Publication number
- WO2005100732A1 WO2005100732A1 PCT/NO2005/000120 NO2005000120W WO2005100732A1 WO 2005100732 A1 WO2005100732 A1 WO 2005100732A1 NO 2005000120 W NO2005000120 W NO 2005000120W WO 2005100732 A1 WO2005100732 A1 WO 2005100732A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- outer pipe
- conductor casing
- inner pipe
- pipe
- accordance
- Prior art date
Links
Classifications
-
- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/07—Telescoping joints for varying drill string lengths; Shock absorbers
-
- 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
Definitions
- the invention regards a telescopic conductor casing for a well installation, preferably a sub sea hydrocarbon well, more particularly a telescopic conductor casing in which an outer pipe is releasably coupled to an inner pipe, the lower end of which comprises means of cooperating with a driving mechanism.
- an outer pipe is releasably coupled to an inner pipe, the lower end of which comprises means of cooperating with a driving mechanism.
- the object of the invention is to remedy the disadvantages of prior art.
- the object is to reduce the cost and practical effects of the uncertainty involved in estimating how far the conductor casing can be driven.
- the invention also allows the installation of long conductor casings without requiring additional conductor casing sections to be added during the driving.
- a telescopic conductor casing according to the invention is arranged in a known manner to be driven into unconsolidated sediments by means of axially directed impulses against internally placed impact surfaces, preferably in the lower portion of an inner pipe.
- the inner pipe is removably coupled to an outer pipe, preferably by an upper portion of the inner pipe being coupled to an upper portion of the outer pipe.
- P24603PC00Deprio - 07.04.2005 In the lower portion of the outer pipe there is provided, in a non-displaceable manner, one or more locking members abutting the outside wall of the inner pipe.
- the locking element (s) is/are arranged to allow an inner pipe released from the outer pipe to move axially away from the upper portion of the outer pipe.
- the locking element (s) is/are furthermore arranged to prevent an outer pipe released from the inner pipe to move axially towards the lower portion of the inner pipe.
- the outer pipe is arranged to receive one or more known stabilizers located externally. This is particularly relevant when the conductor casing is to be placed in unstable unconsolidated sediments.
- the stabilizers causes the conductor casing to present a greater abutment surface to the unconsolidated sediments, whereby the unconsolidated sediments can accommodate a greater load directed radially of the pipe.
- the outer pipe is provided with one or more stops arranged to abut an upper portion of the stabilizer (s) .
- the invention further comprises a method of driving a conductor casing into unconsolidated sediments in order to line a wellbore, the conductor casing being arranged to be driven into the unconsolidated sediments by axially directed impulses against an internal abutment in the lower portion of the conductor casing, where: - an outer pipe is removably coupled to the upper portion of an inner pipe; the compound telescopic conductor casing is driven into the unconsolidated sediments until the upper portion of the outer pipe assumes a prescribed distance from the surface of
- the method comprises the provision of one or more stabilizers on the outer pipe prior to driving this into the unconsolidated sediments.
- Figure 1 shows a longitudinal section through an assembled telescopic conductor casing according to the invention
- Figure 2 shows a longitudinal section, on a smaller scale, tb-rough an assembled telescopic conductor casing being driven into unconsolidated sediments;
- Figure 3 shows a longitudinal section through the telescopic conductor casing being driven into unconsolidated sediments, with an inner pipe sliding in a disconnected outer pipe;
- Figure 4 shows a side view of a conductor casing corresponding to the longitudinal section of figure 3, but where the outer pipe is provided with a stabilizer;
- Figure 5 shows a top view of the conductor casing in figure 4.
- a telescopic conductor casing 1 comprises an inner pipe 3, an outer pipe 5, an annular coupling device 7 and also an annular locking member 9.
- the upper portion 11 of the inner pipe 3 is provided with an annular coupling groove 13.
- a lower portion 15 of the inner pipe 3 is provided with a driving shoe 17 with an internal striking surface 19.
- An upper portion 21 of the outer pipe 5 is provided with an external coupling section 23 capable of receiving and retaining a well installation (not shown) .
- the outside of a central portion 25 of the outer pipe has annular stabilizing stops 27.
- a lower portion 28 of the outer pipe is provided with an internal annular locking groove 29.
- the coupling device 7 has an internal coupling section 31 that extends from a lower central opening 33.
- the threaded portion 31 of the coupling device 7 is a complementary fit to the coupling section 23 on the outer pipe 5.
- An upper bore 35 is a complementary fit to the outer diameter of the inner pipe 3.
- An annular shoulder 37 is a complementary fit to the coupling croove 13 on the inner pipe 3.
- the coupling device is removable, being divisible (not shown) by means of a tool- bearing remote operated vehicle (not shown) .
- the locking element 9 is shaped like an annular disk spring with a convex ring surface 41 facing the lower end 15 of the outer pipe 5.
- An internal lip 43 tightly abuts the outer wall of the inner pipe 3.
- the hammer 61, 63 can transmit driving impulses to the conductor casing via the impact surface 19.
- the conductor casing 1 is provided with a cylindrical stabilizer 71 enclosing portions of the outer pipe 5.
- a central pipe 73 encloses the outer pipe 5 coaxially and abuts the stabilizer stop 27 when in the active position.
- a cylindrical jacket 77 is coaxial with the central pipe 73 and is rigidly connected to this by several supporting ribs 75 that project in the radial direction from the central pipe 73 and extend along the entire axial length of the stabilizer 71.
- the unconsolidated sediments 51 Prior to driving a conductor casing 1 into the ground, the unconsolidated sediments 51 are analysed to find out how far the conductor casing 1 can be driven and how much uncertainty exists around this analysis, i.e. what is the expected maximum driving epth and what is the estimated minimum driving depth.
- T-hen a length of inner pipe 3 is selected which under no circumstances will cause the inner pipe 3 to protrude above t ⁇ ie unconsolidated sediments by more than what is prescribed for a well installation which is subsequently to be installed on the conductor casing 1.
- the length of the outer pipe 5 is selected to be such that the outer pipe 5, when protruding above the unconsolidated sediments 51 as prescribed with regard to the well installation, overlaps the inner pipe w-hen this has been driven down to the maximum depth.
- the conductor casing 1 is driven into the unconsolidated sediments 51 in a manner that is known per se, by the hammer 61, 63 partly making a hole by penetrating into the unconsolidated sediments 51 and forcing them aside and partly hammering the conductor casing into the unconsolidated sediments 51 through impacts against the impact surface 19 on the driving shoe 17.
- the hammer 61, 63 partly making a hole by penetrating into the unconsolidated sediments 51 and forcing them aside and partly hammering the conductor casing into the unconsolidated sediments 51 through impacts against the impact surface 19 on the driving shoe 17.
- the coupling device 7 is removed; at a sub sea installation preferably through use of tools on a remote operated vehicle (ROV) .
- ROV remote operated vehicle
- the outer pipe 5 has a stabilizer 71
- this is driven into the unconsolidated sediments together with the outer pipe 5, the central pipe 73 of the stabilizer 71 abutting the stabilizer stop 27.
- the large surface area of the jacket 77 ensures, in a manner that is known per se, an increase in the lateral stability of the conductor casing 1 when placed in unstable unconsolidated sediments 51.
- the conical shape of the locking member 9 ensures that the outer pipe 5 will not slip down the inner pipe 3 under stress, as the internal lip 43 of the locking member 9 will seize against the surface of the inner pipe 3.
- the conductor casing 1 according the invention can assume a wide range of dimensions, as the inner pipe can assume all relevant dimensions according to industrial practice.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005003118T DE602005003118D1 (en) | 2004-04-13 | 2005-04-13 | TELESCOPIC TUBE FOR A DRILLING PLANT AND METHOD FOR DRIVING THE SAME INTO THE UNDERGROUND |
CA002562891A CA2562891A1 (en) | 2004-04-13 | 2005-04-13 | A telescopic conductor casing for a well installation and a method of driving same into the underground |
EP05734779A EP1740793B1 (en) | 2004-04-13 | 2005-04-13 | A telescopic conductor casing for a well installation and a method of driving same into the underground |
US11/578,535 US20080257603A1 (en) | 2004-04-13 | 2005-04-13 | Telescopic Conductor Casing for a Well Installation and a Method of Driving Same into the Underground |
BRPI0509802A BRPI0509802B1 (en) | 2004-04-13 | 2005-04-13 | telescopic conductor casing for a well installation and a method of operating it underground |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO20041495A NO320467B1 (en) | 2004-04-13 | 2004-04-13 | Telescopic conductor for a well installation and method for driving the same underground. |
NO20041495 | 2004-04-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005100732A1 true WO2005100732A1 (en) | 2005-10-27 |
Family
ID=34859256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO2005/000120 WO2005100732A1 (en) | 2004-04-13 | 2005-04-13 | A telescopic conductor casing for a well installation and a method of driving same into the underground |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080257603A1 (en) |
EP (1) | EP1740793B1 (en) |
AT (1) | ATE377129T1 (en) |
BR (1) | BRPI0509802B1 (en) |
CA (1) | CA2562891A1 (en) |
DE (1) | DE602005003118D1 (en) |
NO (1) | NO320467B1 (en) |
WO (1) | WO2005100732A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102454368A (en) * | 2010-11-02 | 2012-05-16 | 李征 | Telescopic drill rod and cast-in-situ cylindrical pile rotary drilling machine with same |
JP6977934B2 (en) * | 2017-09-05 | 2021-12-08 | 株式会社ダイカ | Pipe driving method |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4368785A (en) * | 1980-07-31 | 1983-01-18 | Gondek John T | Well point and method of driving same |
DE3908646A1 (en) * | 1989-03-16 | 1990-09-20 | Klemm Bohrtechnik Gmbh G | Drill stem |
EP0583650A1 (en) * | 1992-07-28 | 1994-02-23 | Beb Erdgas Und Erdöl Gmbh | Method and device for underground introduction of long transport pipes into the earth |
US5540294A (en) * | 1995-02-14 | 1996-07-30 | Anderberg Construction Company | Vertical percussion ground boring tool apparatus and method |
US6102119A (en) * | 1998-11-25 | 2000-08-15 | Exxonmobil Upstream Research Company | Method for installing tubular members axially into an over-pressured region of the earth |
WO2003076762A1 (en) * | 2002-03-08 | 2003-09-18 | Ocean Riser Systems As | Method and device for liner system |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1048470A (en) * | 1911-04-25 | 1912-12-24 | Edgard Frankignoul | Tubing for boring. |
US1210160A (en) * | 1914-12-02 | 1916-12-26 | Edgard Frankignoul | Tubing for boring. |
US1342424A (en) * | 1918-09-06 | 1920-06-08 | Shepard M Cotten | Method and apparatus for constructing concrete piles |
US1906706A (en) * | 1931-05-06 | 1933-05-02 | Thomas F Moore | Hole punching device |
US2846016A (en) * | 1954-03-19 | 1958-08-05 | Huntsinger Associates | Stop collar for well casing |
US6857487B2 (en) * | 2002-12-30 | 2005-02-22 | Weatherford/Lamb, Inc. | Drilling with concentric strings of casing |
-
2004
- 2004-04-13 NO NO20041495A patent/NO320467B1/en unknown
-
2005
- 2005-04-13 AT AT05734779T patent/ATE377129T1/en not_active IP Right Cessation
- 2005-04-13 EP EP05734779A patent/EP1740793B1/en active Active
- 2005-04-13 CA CA002562891A patent/CA2562891A1/en not_active Abandoned
- 2005-04-13 WO PCT/NO2005/000120 patent/WO2005100732A1/en active IP Right Grant
- 2005-04-13 DE DE602005003118T patent/DE602005003118D1/en active Active
- 2005-04-13 US US11/578,535 patent/US20080257603A1/en not_active Abandoned
- 2005-04-13 BR BRPI0509802A patent/BRPI0509802B1/en active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4368785A (en) * | 1980-07-31 | 1983-01-18 | Gondek John T | Well point and method of driving same |
DE3908646A1 (en) * | 1989-03-16 | 1990-09-20 | Klemm Bohrtechnik Gmbh G | Drill stem |
EP0583650A1 (en) * | 1992-07-28 | 1994-02-23 | Beb Erdgas Und Erdöl Gmbh | Method and device for underground introduction of long transport pipes into the earth |
US5540294A (en) * | 1995-02-14 | 1996-07-30 | Anderberg Construction Company | Vertical percussion ground boring tool apparatus and method |
US6102119A (en) * | 1998-11-25 | 2000-08-15 | Exxonmobil Upstream Research Company | Method for installing tubular members axially into an over-pressured region of the earth |
WO2003076762A1 (en) * | 2002-03-08 | 2003-09-18 | Ocean Riser Systems As | Method and device for liner system |
Also Published As
Publication number | Publication date |
---|---|
US20080257603A1 (en) | 2008-10-23 |
ATE377129T1 (en) | 2007-11-15 |
NO20041495D0 (en) | 2004-04-13 |
BRPI0509802B1 (en) | 2016-03-08 |
CA2562891A1 (en) | 2005-10-27 |
NO20041495L (en) | 2005-10-14 |
EP1740793B1 (en) | 2007-10-31 |
DE602005003118D1 (en) | 2007-12-13 |
EP1740793A1 (en) | 2007-01-10 |
NO320467B1 (en) | 2005-12-12 |
BRPI0509802A (en) | 2007-09-18 |
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