CN104213862A - Casing shaper - Google Patents
Casing shaper Download PDFInfo
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- CN104213862A CN104213862A CN201410437914.4A CN201410437914A CN104213862A CN 104213862 A CN104213862 A CN 104213862A CN 201410437914 A CN201410437914 A CN 201410437914A CN 104213862 A CN104213862 A CN 104213862A
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- finishing ball
- finishing
- ball groove
- groove
- shaping device
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Abstract
The invention provides a casing shaper, which comprises a cylindrical body (7), one end of the body (7) is provided with a tapered head (71), the outer surface between both ends of the body (7) is provided with a plurality of first shaping ball slot groups (72) along the axial direction of the body (7), and the tapered outer surface of the tapered head (71) is provided with a plurality of second shaping ball grooves (75); each first shaping ball slot group (72) includes a plurality of strip-shaped first shaping ball slots (73) arranged along the circumference of the body (7), and first shaping balls (74) are arranged in the first shaping ball slots (73); the second shaping ball grooves (75) are arranged along the circumference of the tapered head (71), and a plurality of second shaping balls (76) are tightly arranged in each second shaping ball groove (75). The casing shaper utilizes the shaping balls to squeeze the damaged parts of a casing to achieve the goal of casing shaping.
Description
Technical field
The present invention relates to a kind of casing tube shaping device, particularly a kind of in casing deformation well workover treatment for casing swage repair device.
Background technology
Along with the continuous prolongation of oil field development time, casing deformation gets more and more, cover damage phenomenon is more and more severeer, serious threat oilfield safety is produced, constrain the development of injection-production in oil field, research casing swage technology, solves casing deformation problem, be a urgent need to solve the problem, the shaft bottom high temperature of thick oil thermal extraction proposes new requirement to casing swage instrument simultaneously.Casing swage technology in the past mainly contains explosive shaping and mechanical shaping two class.In explosive shaping technology, its dosage is difficult to hold standard, and the sleeve pipe of distortion place is often with wall unevenness, and non-directional the making of blast inevitably causes great destruction to sleeve pipe.In mechanical shaping, pyriform apparatus dilates technology, casing milling technology, eccentric rollers shaping technique etc., and ubiquity damage sleeve pipe, sacrifice sleeve tube thickness, is difficult to recover the problems such as exhaust pipe passage.
In order to advance the progress of heavy crude heat extraction technology, the casing tube shaping device that Structure of need is compact, dependable performance, shaping efficiency are high, little to casing damage.
Summary of the invention
In order to solve the problem of existing casing swage technology shaping effect difference.The invention provides a kind of casing tube shaping device, this casing tube shaping device contains body, and body is provided with size two kinds of dozens of finishing balls, utilizes finishing ball extruded sleeve to damage position, reaches shaping object.
The present invention is the technical scheme solving the employing of its technical problem: a kind of casing tube shaping device, comprise the body of column, one end of body is provided with conical head, along the axis direction of body, external surface between body two ends is provided with multiple first finishing ball groove group, and the conical outer surface of conical head is provided with multiple second finishing ball groove; First finishing ball groove group contains the first finishing ball groove of multiple bar shapeds that the circumference along body is arranged, and is provided with the first finishing ball in the first finishing ball groove; Second finishing ball groove is arranged along the circumference of conical head, is provided with multiple compact arranged second finishing ball in the second finishing ball groove.
First finishing ball groove is arranged along the axis direction of body, and from this one end of body to the direction of the body other end, the degree of depth of the first finishing ball groove diminishes gradually.
The first finishing ball volume be exposed to outside the first finishing ball groove is less than the half of the first finishing ball volume, and the part of the first finishing ball in the first finishing ball groove matches with the first finishing ball groove, and the first finishing ball can slide along the axis direction of body.
First finishing ball groove is circular arc towards one end of conical head, central angle corresponding to this circular arc is greater than 180 °, the diameter of the first finishing ball equals the diameter of this circular arc, be provided with the stop screw for preventing the first finishing ball from dropping in this one end of first finishing ball groove, the whole head of stop screw is all arranged in this one end of the first finishing ball groove.
Multiple first finishing ball grooves in first finishing ball groove group are uniformly distributed along the circumference of body, and in two adjacent the first finishing ball groove groups, the first finishing ball groove is spaced.
The second finishing ball volume be exposed to outside the second finishing ball groove is less than the half of the second finishing ball volume, and the part of the second finishing ball in the second finishing ball groove matches with the second finishing ball groove, and the diameter of the second finishing ball is less than the diameter of the first finishing ball.
Second finishing ball groove is provided with installing hole, and the diameter of installing hole equals the diameter of the second finishing ball, is provided with the stop screw for preventing the second finishing ball from dropping in installing hole, and the whole head of stop screw is all arranged in the second finishing ball groove.
The conical outer surface of conical head is provided with four the second finishing ball grooves, and the distance between two second finishing ball grooves on conical head top is less than the distance between two the second finishing ball grooves of conical head bottom.
The other end of body is connected with universal bar and top connection in turn; the two ends of universal bar are respectively spherical; the radius of this domed tall and big ball in this spherical correspondence; be arranged with lower protecting sheathing outside the other end of body and the connecting portion of universal bar, outside the connecting portion of top connection and universal bar, be arranged with protecting sheathing.
The other end of body is provided with spherical hemispherical groove matched with this, and lower protecting sheathing is threaded with the other end of body, is provided with lower break-in ring between lower protecting sheathing and the other end of body, and lower break-in ring is split-type structure; One end of top connection is provided with spherical hemispherical groove matched with this, and upper protecting sheathing is connected with the threaded one end of top connection, between upper protecting sheathing and one end of top connection, be provided with break-in ring, and upper break-in ring is split-type structure.
The invention has the beneficial effects as follows:
1, compact conformation.Body is connected with ball shape structure by universal bar with top connection, completes direction adjustment, make its compact conformation by break-in ring.
2, little to casing failure.Body is provided with the first finishing ball groove of dozens of with certain taper, shaping steel ball is provided with in first finishing ball groove, steel ball freely can move up and down in finishing ball groove, and the first finishing ball groove outer openings is less than the diameter of finishing ball, and restriction finishing ball departs from groove.Finishing ball arranges according to certain rules, roll extrusion is carried out to internal surface of sleeve pipe, by pressing down the body of reshaper, make shaping steel ball prolong the first finishing ball groove to scroll up, the first finishing ball groove is with certain taper, and now the entire outer diameter of this casing tube shaping device becomes large, casing damage position is forced to restore to the original state gradually, casing diameter is returned to original latus rectum gradually, and the scrolling realization cover of shaping steel ball becomes recover by level, less to casing failure.
3, simple to operate.After this casing tube shaping device sends into Tao Bian position, down-hole, universal bar can overlap change situation according to down-hole and automatically adjust tool direction, and pressurization makes shaping tool move downward, and utilizes finishing ball rolling extrusion to overlap and damages position, can reach shaping object.
4, easy to maintenance.Body is connected with ball shape structure by universal bar with top connection, and finishing ball stop screw controls in finishing ball groove, takes off stop screw and just can carry out associated maintenance operation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, casing tube shaping device of the present invention is described in further detail.
Fig. 1 is the front sectional view of casing tube shaping device.
Fig. 2 is the sectional view in A-A direction in Fig. 1.
Fig. 3 is portion's enlarged diagram at universal bar position.
Fig. 4 is portion's enlarged diagram of body part.
Fig. 5 is the sectional view in B-B direction in Fig. 4.
Wherein 1. top connections, 2. go up protecting sheathing, 3. go up break-in ring; 4. universal bar, 5. descends protecting sheathing, 6. descends break-in ring; 7. body, 71. conical heads, 72. first finishing ball groove groups; 73. first finishing ball grooves, 74. first finishing balls, 75. second finishing ball grooves; 751. installing hole; 76. second finishing balls, 77. stop screws, 78. stop screws.
Detailed description of the invention
Below in conjunction with accompanying drawing, casing tube shaping device of the present invention is described in further detail.A kind of casing tube shaping device, comprise the body 7 of column, the lower end (right direction in Fig. 1) of body 7 is provided with conical head 71, along the axis direction of body 7, external surface between body 7 two ends is provided with multiple first finishing ball groove group 72, and the conical outer surface of conical head 71 is provided with multiple second finishing ball groove 75; The first finishing ball 74 is provided with in first finishing ball groove 73, first finishing ball groove 73 of multiple bar shapeds that the first finishing ball groove group 72 is arranged containing the circumference along body 7; Second finishing ball groove 75 is arranged along the circumference of conical head 71, multiple compact arranged second finishing ball 76 is provided with in second finishing ball groove 75, namely the gap between two adjacent in the second finishing ball groove 75 the second finishing balls 76 is zero substantially, in the second finishing ball groove 75, the second finishing ball 76 one by one, as shown in Figure 1, Figure 2, shown in Fig. 4 and Fig. 5.
The process that this casing tube shaping device makes casing deformation return to original state is carried out step by step, first the first contact sleeve of the second finishing ball 76 of body 7 bottom becomes position, to its roll extrusion, along with moving down of this casing tube shaping device, the first finishing ball 74 in first finishing ball groove group 72 moves along on the first finishing ball groove 73, become large relative to the diameter of this casing tube shaping device, casing deformation also will progressively recover thereupon.Be provided with multiple compact arranged second finishing ball 76 in second finishing ball groove 75, the cover first contacted can be made to become position uniform force, for further next good basis is beaten in distortion.In addition, the second finishing ball groove 75 is set like this and can also plays the rubbing action slowing down conical head 71 and sleeve pipe change place.
As shown in Figure 4, first finishing ball groove 73 is arranged along the axis direction of body 7, and from the lower end of body 7 to the direction of the upper end of body 7, the degree of depth of the first finishing ball groove 73 diminishes gradually, in the process that body can be made like this to move down in sleeve pipe, make the external diameter of body 7 become large gradually, force casing damage position to restore to the original state gradually, casing diameter is returned to original latus rectum gradually, the scrolling realization cover of shaping steel ball becomes recover by level, less to casing failure, uniform force, recovery effects is good.
Concrete, first finishing ball 74 volume be exposed to outside the first finishing ball groove 73 is less than the half of the first finishing ball 74 volume, the part of the first finishing ball 74 in the first finishing ball groove 73 matches with the first finishing ball groove 73, first finishing ball 74 can slide along the axis direction of body 7, as shown in Figure 2 and Figure 4.
For the ease of the installation and maintenance of the first finishing ball 74, as shown in Figure 4, first finishing ball groove 73 is circular arc towards the lower end (in Fig. 4 right direction) of conical head 71, central angle corresponding to this circular arc is greater than 180 °, the diameter of the first finishing ball 74 slightly larger than or equal the diameter of this circular arc, the stop screw 77 for preventing the first finishing ball 74 from dropping is provided with in this one end of first finishing ball groove 73, the whole head of stop screw 77 is all arranged in this one end of the first finishing ball groove 73, if need the first finishing ball 74 to take out from the first finishing ball groove 73, then stop screw 77 is taken off, after then the first finishing ball 74 slides into the lower end of the first finishing ball groove 73, first finishing ball 74 can depart from the first finishing ball groove 73, otherwise the first finishing ball 74 then can be installed, the upper surface of the head of stop screw 77 is less than the radius of the first finishing ball 74 to the distance of the first finishing ball groove 73 upper surface, the diameter of the head of stop screw 77 equals the diameter of this circular arc, so stop screw 77 can prevent the first finishing ball 74 from coming off from the first finishing ball groove 73.
Multiple first finishing ball grooves 73 in first finishing ball groove group 72 are uniformly distributed along the circumference of body 7, and in two adjacent the first finishing ball groove groups 72, the first finishing ball groove 73 is spaced, as shown in Figure 1 and Figure 4.
Second finishing ball 76 volume be exposed to outside the second finishing ball groove 75 is less than the half of the second finishing ball 76 volume, the part of the second finishing ball 76 in the second finishing ball groove 75 matches with the second finishing ball groove 75, and the diameter of the second finishing ball 76 is less than the diameter of the first finishing ball 74.
For the ease of the installation and maintenance of the second finishing ball 76, second finishing ball groove 75 is provided with installing hole 751, the diameter of installing hole 751 slightly larger than or equal the diameter of the second finishing ball 76, be provided with the stop screw 78 for preventing the second finishing ball 76 from dropping in installing hole 751, the whole head of stop screw 78 is all arranged in the second finishing ball groove 75.Doing in of the effect of this stop screw 78 and stop screw 77 is substantially identical, the upper surface of the head of stop screw 78 is less than the radius of the second finishing ball 76 to the distance of the second finishing ball groove 75 upper surface, the diameter of the head of stop screw 78 equals the diameter of installing hole 751, so stop screw 78 can prevent the second finishing ball 76 from coming off from the second finishing ball groove 75.
The conical outer surface of conical head 71 is provided with four the second finishing ball grooves 75, and the distance between two second finishing ball grooves 75 on conical head 71 top is less than the distance between two the second finishing ball grooves 75 of conical head 71 bottom.
The upper end (left direction as in 1) of body 7 is connected with universal bar 4 and top connection 1 in turn; the two ends of universal bar 4 are respectively identical spherical; the radius of this domed tall and big ball in this spherical correspondence; lower protecting sheathing 5 is arranged with outside the upper end of body 7 and the connecting portion of universal bar 4; protecting sheathing 2 is arranged with, as shown in Figure 3 outside top connection 1 and the connecting portion of universal bar 4.
The upper end of body 7 is provided with spherical hemispherical groove matched with this, the upper end of body 7 is corresponding with the lower end of universal bar 4 to be connected, lower protecting sheathing 5 is connected with the threaded upper ends of body 7, lower break-in ring 6 is provided with between lower protecting sheathing 5 and the other end of body 7, lower break-in ring 6 is arranged in lower protecting sheathing 5, inner surface and the lower end of universal bar 4 of lower break-in ring 6 are removed the hemispheric surface corresponding with the upper end of body 7 and are matched, lower break-in ring 6 is split-type structure, and in the present embodiment, lower break-in ring 6 is containing symmetrical two semicircular ring; The lower end of top connection 1 is provided with spherical hemispherical groove matched with this; the lower end of top connection 1 is corresponding with the upper end of universal bar 4 to be connected; upper protecting sheathing 2 is threaded with the lower end of top connection 1; break-in ring 3 is provided with between upper protecting sheathing 2 and the lower end of top connection 1; upper break-in ring 3 is arranged in protecting sheathing 2; inner surface and the upper end of universal bar 4 of upper break-in ring 3 are removed the hemispheric surface corresponding with the lower end of top connection 1 and are matched; upper break-in ring 3 is split-type structure, and in the present embodiment, upper break-in ring 3 is containing symmetrical two semicircular ring.The effect of upper break-in ring 3 connects top connection 1 and universal bar 4, enables the upper end flexible rotating of universal bar 4, and the effect of lower break-in ring 6 is the upper end and the universal bar 4 that connect body 7, enables the lower end flexible rotating of universal bar 4.
With tubing string, casing tube shaping device is delivered to Tao Bian position, down-hole during work, utilize on tubing string and apply pressure, pushing set tube reshaping device moves down.In moving process, universal bar 4 can overlap the direction of the automatic adjusting sleeve tube reshaping device of change situation according to down-hole, finishing ball simultaneously on body 7 carries out roll extrusion to internal surface of sleeve pipe, position is damaged by the rolling extrusion cover of shaping steel ball, casing damage position is restored to the original state gradually, and casing diameter returns to original latus rectum gradually.The rolling extrusion sleeve pipe of shaping steel ball, the process making casing deformation return to original state is carried out step by step, first the first contact sleeve of the minor diameter finishing ball of body 7 bottom becomes position, to its roll extrusion, along with moving down of shaping tool, finishing ball moves along carving on type ball groove, and tool diameter becomes large thereupon, and casing deformation progressively recovers; Cover change returns to the size designed in advance, completes cover Deformation Repair.
The above, be only specific embodiments of the invention, can not limit the scope that invention implements with it, so the displacement of its equivalent assemblies, or the equivalent variations done according to scope of patent protection of the present invention and modification, all still should belong to the category that this patent is contained.In addition, the technical characteristic in the present invention and all can using by independent assortment between technical characteristic, between technical characteristic and technical scheme, between technical scheme and technical scheme.
Claims (10)
1. a casing tube shaping device, it is characterized in that, described casing tube shaping device comprises the body (7) of column, one end of body (7) is provided with conical head (71), along the axis direction of body (7), external surface between body (7) two ends is provided with multiple first finishing ball groove group (72), and the conical outer surface of conical head (71) is provided with multiple second finishing ball groove (75);
First finishing ball groove (73) of multiple bar shapeds that the first finishing ball groove group (72) is arranged containing the circumference along body (7), is provided with the first finishing ball (74) in the first finishing ball groove (73);
Second finishing ball groove (75) is arranged along the circumference of conical head (71), is provided with multiple compact arranged second finishing ball (76) in the second finishing ball groove (75).
2. casing tube shaping device according to claim 1, it is characterized in that: the first finishing ball groove (73) is arranged along the axis direction of body (7), from this one end of body (7) to the direction of body (7) other end, the degree of depth of the first finishing ball groove (73) diminishes gradually.
3. casing tube shaping device according to claim 2, it is characterized in that: the first finishing ball (74) is exposed to the half that the first finishing ball groove (73) volume is outward less than the first finishing ball (74) volume, the part of first finishing ball (74) in the first finishing ball groove (73) matches with the first finishing ball groove (73), and the first finishing ball (74) can slide along the axis direction of body (7).
4. casing tube shaping device according to claim 3, it is characterized in that, first finishing ball groove (73) is circular arc towards one end of conical head (71), central angle corresponding to this circular arc is greater than 180 °, the diameter of the first finishing ball (74) equals the diameter of this circular arc, be provided with the stop screw (77) for preventing the first finishing ball (74) from dropping in this one end of first finishing ball groove (73), the whole head of stop screw (77) is all arranged in this one end of the first finishing ball groove (73).
5. casing tube shaping device according to claim 1, it is characterized in that: the multiple first finishing ball grooves (73) in the first finishing ball groove group (72) are uniformly distributed along the circumference of body (7), in two adjacent the first finishing ball groove groups (72), the first finishing ball groove (73) is spaced.
6. casing tube shaping device according to claim 1, it is characterized in that: the second finishing ball (76) is exposed to the half that the second finishing ball groove (75) volume is outward less than the second finishing ball (76) volume, the part of second finishing ball (76) in the second finishing ball groove (75) matches with the second finishing ball groove (75), and the diameter of the second finishing ball (76) is less than the diameter of the first finishing ball (74).
7. casing tube shaping device according to claim 1, it is characterized in that: the second finishing ball groove (75) is provided with installing hole (751), the diameter of installing hole (751) equals the diameter of the second finishing ball (76), be provided with the stop screw (78) for preventing the second finishing ball (76) from dropping in installing hole (751), the whole head of stop screw (78) is all arranged in the second finishing ball groove (75).
8. casing tube shaping device according to claim 1, it is characterized in that: the conical outer surface of conical head (71) is provided with four the second finishing ball grooves (75), the distance between two second finishing ball grooves (75) on conical head (71) top is less than the distance between two the second finishing ball grooves (75) of conical head (71) bottom.
9. casing tube shaping device according to claim 1; it is characterized in that: the other end of body (7) is connected with universal bar (4) and top connection (1) in turn; the two ends of universal bar (4) are respectively spherical; the radius of this domed tall and big ball in this spherical correspondence; be arranged with lower protecting sheathing (5) outside the other end of body (7) and the connecting portion of universal bar (4), outside top connection (1) and the connecting portion of universal bar (4), be arranged with protecting sheathing (2).
10. casing tube shaping device according to claim 9, it is characterized in that: the other end of body (7) is provided with spherical hemispherical groove matched with this, lower protecting sheathing (5) is threaded with the other end of body (7), between lower protecting sheathing (5) and the other end of body (7), be provided with lower break-in ring (6), lower break-in ring (6) is split-type structure; One end of top connection (1) is provided with spherical hemispherical groove matched with this; upper protecting sheathing (2) is connected with the threaded one end of top connection (1); between upper protecting sheathing (2) and one end of top connection (1), be provided with upper break-in ring (3), upper break-in ring (3) is split-type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437914.4A CN104213862A (en) | 2014-08-29 | 2014-08-29 | Casing shaper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410437914.4A CN104213862A (en) | 2014-08-29 | 2014-08-29 | Casing shaper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104213862A true CN104213862A (en) | 2014-12-17 |
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ID=52095731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410437914.4A Pending CN104213862A (en) | 2014-08-29 | 2014-08-29 | Casing shaper |
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| Country | Link |
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| CN (1) | CN104213862A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818734A (en) * | 1973-05-23 | 1974-06-25 | J Bateman | Casing expanding mandrel |
| SU1745874A1 (en) * | 1987-02-09 | 1992-07-07 | Украинский научно-исследовательский институт природных газов | Device for elimination of casing collapse downhole |
| CN2422444Y (en) * | 2000-01-05 | 2001-03-07 | 张广卿 | Ball oil well casing centralising device |
| CN202300264U (en) * | 2011-10-09 | 2012-07-04 | 中国石油化工股份有限公司 | Step type ball pipe expander |
| CN202451096U (en) * | 2012-02-02 | 2012-09-26 | 中国石油化工股份有限公司 | Oil-water well casing mandrel |
| CN203201509U (en) * | 2013-03-26 | 2013-09-18 | 中国石油天然气集团公司 | Multistage combined steel ball shaper |
| CN204113170U (en) * | 2014-08-29 | 2015-01-21 | 中国石油天然气股份有限公司 | A kind of casing tube shaping device |
-
2014
- 2014-08-29 CN CN201410437914.4A patent/CN104213862A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3818734A (en) * | 1973-05-23 | 1974-06-25 | J Bateman | Casing expanding mandrel |
| SU1745874A1 (en) * | 1987-02-09 | 1992-07-07 | Украинский научно-исследовательский институт природных газов | Device for elimination of casing collapse downhole |
| CN2422444Y (en) * | 2000-01-05 | 2001-03-07 | 张广卿 | Ball oil well casing centralising device |
| CN202300264U (en) * | 2011-10-09 | 2012-07-04 | 中国石油化工股份有限公司 | Step type ball pipe expander |
| CN202451096U (en) * | 2012-02-02 | 2012-09-26 | 中国石油化工股份有限公司 | Oil-water well casing mandrel |
| CN203201509U (en) * | 2013-03-26 | 2013-09-18 | 中国石油天然气集团公司 | Multistage combined steel ball shaper |
| CN204113170U (en) * | 2014-08-29 | 2015-01-21 | 中国石油天然气股份有限公司 | A kind of casing tube shaping device |
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Application publication date: 20141217 |
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| RJ01 | Rejection of invention patent application after publication |