CN201778711U - Anchoring ball type truing device for sleeve pipes - Google Patents

Anchoring ball type truing device for sleeve pipes Download PDF

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Publication number
CN201778711U
CN201778711U CN2010205157247U CN201020515724U CN201778711U CN 201778711 U CN201778711 U CN 201778711U CN 2010205157247 U CN2010205157247 U CN 2010205157247U CN 201020515724 U CN201020515724 U CN 201020515724U CN 201778711 U CN201778711 U CN 201778711U
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CN
China
Prior art keywords
ball
sleeve
cylinder
grappling
anchor
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Expired - Lifetime
Application number
CN2010205157247U
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Chinese (zh)
Inventor
张高峰
赵海军
罗永庆
焦海中
崔志强
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FUXIN CHIYU PETROLEUM MACHINERY Co Ltd
Dagang Oilfield Group Co Ltd
Original Assignee
FUXIN CHIYU PETROLEUM MACHINERY Co Ltd
Dagang Oilfield Group Co Ltd
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Application filed by FUXIN CHIYU PETROLEUM MACHINERY Co Ltd, Dagang Oilfield Group Co Ltd filed Critical FUXIN CHIYU PETROLEUM MACHINERY Co Ltd
Priority to CN2010205157247U priority Critical patent/CN201778711U/en
Application granted granted Critical
Publication of CN201778711U publication Critical patent/CN201778711U/en
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Abstract

The utility model discloses an anchoring ball type truing device for sleeve pipes, which aims at overcoming the shortcomings that when an existing ball type truing device is used for repairing sleeve pipes, a drilling tool is easy to be damaged, repairing work takes a long time due to unstable conditions of a pipe column, and working cost is increased. An upper joint (1) of an anchoring device (30), a discharging assembly (32), an anchoring assembly (33), a hydraulic cylinder assembly (34) and a lower joint (17) are sequentially fixedly connected; a check valve (35) is arranged inside the lower joint (17); the lower joint (17) of the anchoring device (30) is fixedly connected with the upper end of a ball truing device (31), or the lower joint (17), a drill collar and the ball truing device (31) are sequentially fixedly connected from top to bottom. The anchoring ball type truing device for sleeve pipes has the advantages that the anchoring ball type truing device is simple in structure, reasonable in design, easy in operation, safe and reliable, and capable of avoiding damage to the drilling tool, shortening work time, improving working efficiency and reducing cost of field operation.

Description

Grappling ball-type casing swage device
Affiliated technical field
The utility model relates to a kind of casing shaping device, especially relates to a kind of grappling ball-type casing swage device.
Background technology
Increase along with the oil field development time, the fluid field on stratum, pressure field are with great changes will take place, frequent in addition oil-water well measure and well workover construction operation, and casing programme, completion cementing quality, tubing and corrosion etc. are all multifactor, make Casing Failure technology status worse and worse, cause damage phenomenons such as casing collapse, distortion, perforation, bad break constantly to take place.The expansion set technology has been subjected to the attention of each side as a kind of cover technology of repairing efficiently and effectively, and it is the important measures of oilfield stable production volume increase.The bloated cover technology of repairing of pausing of routine, because of pyriform short (very easily causing not disconnected as lengthening), the major diameter instrument than length after repairing still can't pass through, and pauses energetically simultaneously to dash and drilling rod is damaged greatly the operating cost height.The success rate of hydraulic pressure ball expansion set technology repairing casing distortion is higher, disclosed Chinese utility application on March 7 calendar year 2001 " ball-type casing shaping device ", disclosed Chinese utility model patent on January 5th, 2005 " ball reshaper ", ball-type casing mandrels of forming by taper assembly and ball all, the conical surface of taper assembly is provided with the slot rolling of filling ball, ball protrudes and also can roll in slot rolling on the conical surface, in the casing swage operation, be difficult for bit freezing, it is wide to be suitable for processing casing deformation scope.But above-mentioned ball-type reshaper damages drilling tool easily when the repairing casing operation, and the tubing string state labile makes that the repair time is long, and operating cost increases.
The utility model content
In order to overcome existing ball-type reshaper when the repairing casing operation, damage drilling tool easily, the tubing string state labile makes that the repair time is long, the deficiency of operating cost increase, the utility model provides a kind of grappling ball-type casing swage device.This grappling ball-type casing swage device adopts ground pump truck to suppress the mode that expands and repair repeatedly by Hydraulic Anchorage tubing string and supporting series of balls reshaper, realizes the purpose of repairing casing deformation section.
The technical scheme that its technical problem that solves the utility model adopts is: in the radial hole on the ball reshaper tapered sleeve of grappling ball-type casing swage device the shaping ball is installed, the mandrel that is fixedly connected on the top connection lower end is arranged in the tapered sleeve endoporus, adapter sleeve axially is connected mandrel with tapered sleeve, the shaping ball protrudes the tapered sleeve cylindrical, and the top connection of anchor, earial drainage assembly, grappling assembly, fluid cylinder assembly, lower contact are fixedly connected sequentially; Ball-and-seat is installed in the lower contact; The lower contact of anchor is fixedlyed connected with the upper end of ball reshaper, and perhaps lower contact, drilling rod, ball reshaper from top to bottom are fixedly connected sequentially.
The sliding sleeve middle part of earial drainage assembly is installed in the cylinder sleeve; The radial seal cover is installed between sliding sleeve lower end and the cylinder sleeve, between the sliding sleeve of sealing shroud top and the cylinder sleeve annular space is arranged; Radially outer discharge orifice is arranged on the cylinder sleeve, inwardly discharge orifice of footpath is arranged on the sliding sleeve of sealing shroud below; Fixedlying connected with the top connection lower end in the sliding sleeve upper end, fixedlys connected with back of the body cap in the upper end of cylinder sleeve, fixedlys connected with the anchor body upper end of grappling assembly in the lower end; The inner convex platform of back of the body cap is between top connection lower surface and cylinder sleeve upper surface.Fixedly connected with the cylinder sleeve lower end in the anchor body upper end of grappling assembly, the upper surface of anchor body and cylinder sleeve bore step are with the sealing shroud axial restraint; In the cylinder body of anchor body bottom and fluid cylinder assembly piston is installed, the upper surface area of piston is greater than sliding sleeve lower surface area.Fixedly connected with the lower end of piston in the lower contact upper end; The valve ball of ball-and-seat is installed on the up big and down small conical bore of lower contact, and lower contact endoporus, valve ball upper fixed are equipped with baffle plate, and axial flowbore is arranged on the baffle plate.
The cylinder body of fluid cylinder assembly is composed of a fixed connection by upper cylinder body and lower cylinder body; Piston is fixedly connected sequentially and is formed by upper piston, middle piston, lower piston, has at least 2 diameters of axle and fluid cylinder cylinder inner bore to be slidingly matched on the piston.
On the anchor body of grappling assembly radial direction through hole is arranged, anchor fluke is installed in the radial direction through hole of anchor body, between the radial direction through hole of anchor fluke and anchor body radial direction seal ring is installed; Anchor fluke is equipped with pressing plate outward; The two ends of pressing plate are fixedly mounted on the anchor body.Anchor fluke is more than 2 or 2, and is distributed on the excircle of anchor body.The pressure of expansion anchor fluke is less than the pressure that promotes piston in the fluid cylinder assembly.
The beneficial effects of the utility model are, and are simple in structure, reasonable in design, are convenient to operation, safe and reliable, avoid the infringement to drilling tool; Reduction of erection time, the operating efficiency height reduces the construction operation cost.
Description of drawings
Fig. 1 is the grappling assembly structure schematic diagram of the utility model grappling ball-type casing swage device.
Fig. 2 is the ball reshaper structural representation of the utility model grappling ball-type casing swage device.
Among the figure: 1. top connection, 2. sliding sleeve, 3. back of the body cap, 4. cylinder sleeve, 5. sealing shroud, 6. anchor body, 7. anchor fluke, 8. screw, 9. sealing ring, 10. screw, 11. pressing plates, 12. upper pistons, 13. middle piston, 14. upper cylinder bodies, 15. lower pistons, 16. lower cylinder bodies, 17. lower contact, 18. baffle plates, 19. valve balls, 20. top connections, 21. mandrel, 22. adapter sleeves, 23. tapered sleeves, 24. shaping balls, 25. the shaping ball, 26. little back of the body caps, 27. radial flow of liquid holes, 28. interior discharge orifice, 29. outer discharge orifices, 30. anchors, 31. the ball reshaper, 32. earial drainage assemblies, 33. grappling assemblies, 34. the fluid cylinder assembly, 35. ball-and-seats, 36. axial flowbore.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.But what those skilled in the art should know is that the utility model is not limited to the listed specific embodiment, as long as meet spirit of the present utility model, all should be included in the protection domain of the present utility model.
Grappling ball-type casing swage device comprises anchor 30 (referring to accompanying drawing 1) and ball reshaper 31 (referring to accompanying drawing 2), fixedlys connected with the upper end of ball reshaper 31 in the lower end of anchor 30; Or anchor 30, drill collar, ball reshaper 31 from top to bottom be fixedly connected sequentially, and the drill collar length that is inserted is decided according to the needs of casing swage well in operation.
Ball reshaper 31 comprises top connection 20, mandrel 21, tapered sleeve 23, adapter sleeve 22.Fixedly connected with top connection 20 in the upper end of mandrel 21, insert in the endoporus of tapered sleeve 23 lower end; The inner convex platform of adapter sleeve 22 upper ends is enclosed within on the boss rank at mandrel 21 middle parts, fixedlys connected with tapered sleeve 23 in adapter sleeve 22 lower ends, and mandrel 21 axially is connected with tapered sleeve 23, and mandrel 21 relative tapered sleeves 23 and adapter sleeve 22 can move up and down.Tapered sleeve 23 tops are cylinder, and the bottom is a cone; On the cylinder on tapered sleeve 23 tops radial hole is arranged, shaping ball 24 is installed in the radial hole, the diameter of shaping ball 24 is greater than tapered sleeve 23 cylindrical wall thickness; On the mandrel 21 axial chute is arranged, the oblique angle of skewed slot is about 5 °, behind the endoporus of tapered sleeve 23, shaping ball 24 is outwards ejected under mandrel 21 inserts, and makes shaping ball 24 slightly protrude from tapered sleeve 23; There is circular hole on the surface of the cone of tapered sleeve 23 lower ends, and the little back of the body cap 26 that axially extending bore arranged in circular hole, and is fixedlyed connected shaping ball 25 slightly outstanding cone surfaces with tapered sleeve 23 screw threads with shaping ball 25 spiral-locks.
Anchor 30 mainly comprises top connection 1, earial drainage assembly 32, grappling assembly 33, fluid cylinder assembly 34, lower contact 17, and from top to bottom is fixedly connected sequentially; Ball-and-seat 35 is installed in the lower contact 17.
Earial drainage assembly 32 comprises sliding sleeve 2, cylinder sleeve 4, radial seal cover 5, back of the body cap 3 etc., and sliding sleeve 2 middle part boss are positioned at cylinder sleeve 4, and slide up and down along cylinder sleeve 4; Radial seal cover 5 is installed between sliding sleeve 2 lower ends and the cylinder sleeve 4, outer discharge orifice 29 is radially arranged on the cylinder sleeve 4 of sealing shroud 5 tops, interior discharge orifice 28 is radially arranged on the sliding sleeve 2 of sealing shroud 5 belows; Fixedlying connected with top connection 1 lower end endoporus in sliding sleeve 2 upper ends, fixedlys connected with back of the body cap 3 in the upper end of cylinder sleeve 4, fixedlys connected with anchor body 6 upper ends of grappling assembly 33 in the lower end; Anchor body 6 upper ends are axially fixed in sealing shroud 5 in the annular space between sliding sleeve 2 and the cylinder sleeve 4.The inner convex platform of back of the body cap 3 is between top connection 1 lower surface and cylinder sleeve 4 upper surfaces.
Grappling assembly 33 mainly comprises anchor body 6, anchor fluke 7 and pressing plate 11 etc., on the anchor body 6 radial direction through hole is arranged, cylindrical anchor fluke 7 is installed in the radial direction through hole of anchor body 6, and anchor fluke 7 and anchor body 6 are equipped with radial direction seal ring 9 for being slidingly matched between the radial direction through hole of anchor fluke 7 and anchor body 6; The anchor fluke 7 outer pressing plates 11 that are equipped with; The two ends of pressing plate 11 are fixedly mounted on the anchor body 6, and are fixing by screw 8 and screw 10 usually.Anchor fluke 7 is distributed on the excircle of anchor body 6.Fixedly connected with cylinder sleeve 4 lower ends of earial drainage assembly 32 in anchor body 6 upper ends of grappling assembly 33, fixedly connected with the cylinder body of fluid cylinder assembly 34 in anchor body 6 lower ends, usually adopt the fixedly connected reliability of screw thread, holding screw radially can also be installed after the connection in order to guarantee to connect.
Fluid cylinder assembly 34 mainly comprises fluid cylinder and piston, and piston upper surface area is greater than sliding sleeve 2 lower surface areas.
Fixedly connected with the cylinder body of fluid cylinder assembly 34 in anchor body 6 lower ends, anchor body 6 bottoms, upper cylinder body 14, lower cylinder body 16 fluid cylinder that is composed of a fixed connection is equipped with piston in the fluid cylinder.In order to guarantee carrying out smoothly of operation, the cylinder body of fluid cylinder assembly 34 is composed of a fixed connection by upper cylinder body 14 and lower cylinder body 16 usually; Piston is fixedly connected sequentially and is formed by upper piston 12, middle piston 13, lower piston 15, has at least 2 diameters of axle and fluid cylinder cylinder inner bore to be slidingly matched on the piston.Between piston and the cylinder body contact surface radial direction seal ring is installed, excellent sealing performance enough guarantees carrying out smoothly of casing swage operation.Fixedly connected with lower contact 17 in the lower end of lower piston 15.
Lower contact 17 is equipped with valve ball 19 as the valve body of ball-and-seat 35 on the up big and down small conical bore of lower contact 17, and valve ball 19 tops have baffle plate 18 to be fixedly mounted in lower contact 17 endoporus, and axial flowbore 36 is arranged on the baffle plate 18.
When design anchor 30, the grappling pressure of anchor fluke 7 should be less than the pressure that promotes piston in the fluid cylinder assembly 34.
Implement the utility model grappling ball-type casing swage device and carry out the sleeve pipe repair, at first according to the internal diameter size of the detection of impaired sleeve pipe being determined casing deformation place, select the ball reshaper 31 of suitable dimension, ball reshaper 31 outside dimensions are than the big 2.0mm of minimum dimension at casing deformation place usually; The lower contact 17 of grappling ball-type casing swage device is connected the upper end of drill collar, ball reshaper 31 is installed in the lower end of drill collar, anchor 30, drill collar, ball reshaper 31 connect to form sleeve pipe successively and repair tubing string, the drill collar length that inserts between lower contact 17 and the top connection 20 becomes segment length according to cover determines that casing swage is repaired step and is:
(1) anti-flushing well: transfer sleeve pipe and repair tubing string to sleeve pipe, ball reshaper 31 is delivered to cover become the resistance position, in the annular space of drilling rod and sleeve pipe, inject workover fluid, the radial flow of liquid hole 27 of workover fluid on mandrel 21 enters in the drill collar, workover fluid is counter to be circulated to lower contact 17, promote valve ball 19 and upwardly open ball-and-seat 35, and upwards return out well head by axial flowbore on the baffle plate 18 36 and grappling assembly 33;
(2) grappling: write down original suspending weight, slowly transfer tubing string, exert pressure, and on oil pipe, make marks; The turn on pump oil pipe builds the pressure, and flow through grappling assembly 33 of liquid promotes valve balls 19 and falls after rise and close ball-and-seat 35; Build the pressure to anchor fluke 7 outside expansions, sleeve pipe is repaired tubing string be anchored in the sleeve pipe;
(3) casing swage: continue pressurization, the piston of fluid cylinder assembly 34 moves down, and the mandrel 21 that promotes ball reshaper 31 moves down, and mandrel 21 moves down and promotes shaping ball 24 expansions and squeezing bushing; Continue to boost, observe pump pressure and change; Reduce to 0 gradually when pump pressure, the shaping stroke is finished;
(4) remove grappling: on carry sleeve pipe and repair that tubing string drives top connection 1, sliding sleeve 2 is up, interior discharge orifice 28 on the sliding sleeve 2 is positioned at sealing shroud 5 tops, liquid in the tubing string enters the annular space of oil pipe and sleeve pipe, the decline of tubing string internal pressure by the outer discharge orifice 29 on interior discharge orifice 28, the cylinder sleeve 4; Anchor fluke 7 automatic drawing backs of grappling assembly 33 are removed grappling;
That carries slowly that sleeve pipe repairs that tubing string done to the step (two) is tagged to well head top 2～3m, observes suspending weight to former load, and revoling tube is repaired tubing string, repeats above-mentioned steps (two)～(four) after the conversion different angles; Repair tubing string until sleeve pipe and can become section by cover.
Sleeve pipe is repaired tubing string propose well head, change and strengthen a differential ball reshaper 31, each diameter is differential to be 1.5～2.5mm; Usually to differ 2mm be one-level to each diameter, the sleeve pipe repair of being more convenient for during for 2mm of diameter class difference.Repeat above-mentioned each step, reach designing requirement until the repairing casing latus rectum.
It should be noted that the foregoing description is example and unrestricted the utility model, those skilled in the art can design a lot of alternate embodiments and not break away from the scope of appended claims.

Claims (7)

1. grappling ball-type casing swage device, in the radial hole on the ball reshaper tapered sleeve shaping ball is installed, the mandrel that is fixedly connected on the top connection lower end is arranged in the tapered sleeve endoporus, and adapter sleeve axially is connected mandrel with tapered sleeve, the shaping ball protrudes the tapered sleeve cylindrical, it is characterized in that:
The top connection (1) of anchor (30), earial drainage assembly (32), grappling assembly (33), fluid cylinder assembly (34), lower contact (17) are fixedly connected sequentially; Ball-and-seat (35) is installed in the lower contact (17);
The lower contact (17) of anchor (30) is fixedlyed connected with the upper end of ball reshaper (31), and perhaps lower contact (17), drilling rod, ball reshaper (31) from top to bottom are fixedly connected sequentially.
2. grappling ball-type casing swage device according to claim 1 is characterized in that:
Sliding sleeve (2) middle part of described earial drainage assembly (32) is installed in the cylinder sleeve (4); Between sliding sleeve (2) lower end and the cylinder sleeve (4) radial seal cover (5) is installed, between the sliding sleeve (2) of sealing shroud (5) top and the cylinder sleeve (4) annular space is arranged; Radially outer discharge orifice (29) is arranged on the cylinder sleeve (4), inwardly discharge orifice (28) of footpath is arranged on the sliding sleeve (2) of sealing shroud (5) below; Fixedlying connected with top connection (1) lower end in sliding sleeve (2) upper end, fixedlys connected with back of the body cap (3) in the upper end of cylinder sleeve (4), fixedlys connected with anchor body (6) upper end of grappling assembly (33) in the lower end; The inner convex platform of back of the body cap (3) is positioned between top connection (1) lower surface and cylinder sleeve (4) upper surface;
Fixedly connected with cylinder sleeve (4) lower end in anchor body (6) upper end of described grappling assembly (33), the upper surface of anchor body (6) and cylinder sleeve (4) endoporus step are with sealing shroud (5) axial restraint; In the cylinder body of anchor body (6) bottom and fluid cylinder assembly (34) piston is installed, the upper surface area of piston is greater than sliding sleeve (2) lower surface area;
Fixedly connected with the lower end of piston in described lower contact (17) upper end; The valve ball (19) of ball-and-seat (35) is installed on the up big and down small conical bore of lower contact (17), and lower contact (17) endoporus, valve ball (19) upper fixed are equipped with baffle plate (18), and axial flowbore (36) is arranged on the baffle plate (18).
3. grappling ball-type casing swage device according to claim 2 is characterized in that: the cylinder body of fluid cylinder assembly (34) is composed of a fixed connection by upper cylinder body (14) and lower cylinder body (16); Piston is fixedly connected sequentially and is formed by upper piston (12), middle piston (13), lower piston (15), has at least 2 diameters of axle and fluid cylinder cylinder inner bore to be slidingly matched on the piston.
4. grappling ball-type casing swage device according to claim 3, it is characterized in that: on the anchor body (6) of described grappling assembly (33) radial direction through hole is arranged, anchor fluke (7) is installed in the radial direction through hole of anchor body (6), between the radial direction through hole of anchor fluke (7) and anchor body (6) radial direction seal ring (9) is installed; The outer pressing plate (11) that is equipped with of anchor fluke (7); The two ends of pressing plate (11) are fixedly mounted on the anchor body (6).
5. grappling ball-type casing swage device according to claim 4, it is characterized in that: described anchor fluke (7) is more than 2 or 2, and is distributed on the excircle of anchor body (6).
6. grappling ball-type casing swage device according to claim 4 is characterized in that: the pressure of the described anchor fluke (7) that expands is less than the pressure that promotes piston in the fluid cylinder assembly (34).
7. grappling ball-type casing swage device according to claim 6 is characterized in that: the differential 1.5～2.5mm of being of each diameter of described ball reshaper (31).
CN2010205157247U 2010-09-01 2010-09-01 Anchoring ball type truing device for sleeve pipes Expired - Lifetime CN201778711U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942979A (en) * 2010-09-01 2011-01-12 大港油田集团有限责任公司 Anchoring ball type casing truing unit and truing method thereof
CN102296939A (en) * 2011-07-26 2011-12-28 中国石油天然气股份有限公司 Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof
CN109138886A (en) * 2018-10-24 2019-01-04 中国石油化工股份有限公司 Underground deformed casing idler wheel reshaper and its application method
CN110593794A (en) * 2019-10-19 2019-12-20 海塔石油科技有限公司 Anchoring type hydraulic sleeve shaping tool

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101942979A (en) * 2010-09-01 2011-01-12 大港油田集团有限责任公司 Anchoring ball type casing truing unit and truing method thereof
CN101942979B (en) * 2010-09-01 2013-07-10 大港油田集团有限责任公司 Anchoring ball type casing truing unit and truing method thereof
CN102296939A (en) * 2011-07-26 2011-12-28 中国石油天然气股份有限公司 Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof
CN102296939B (en) * 2011-07-26 2014-02-19 中国石油天然气股份有限公司 Automatic pressure balancing expansion and fishing integrated expansion pipe tool and use method thereof
CN109138886A (en) * 2018-10-24 2019-01-04 中国石油化工股份有限公司 Underground deformed casing idler wheel reshaper and its application method
CN110593794A (en) * 2019-10-19 2019-12-20 海塔石油科技有限公司 Anchoring type hydraulic sleeve shaping tool
CN110593794B (en) * 2019-10-19 2024-04-09 海塔石油科技有限公司 Anchor type hydraulic sleeve shaping tool

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Granted publication date: 20110330

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