CN207144824U - A kind of major diameter riser pipe windowing whipstock - Google Patents
A kind of major diameter riser pipe windowing whipstock Download PDFInfo
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- CN207144824U CN207144824U CN201720961110.3U CN201720961110U CN207144824U CN 207144824 U CN207144824 U CN 207144824U CN 201720961110 U CN201720961110 U CN 201720961110U CN 207144824 U CN207144824 U CN 207144824U
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- Prior art keywords
- piston
- clinohedral
- slips
- whipstock
- pipe
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- 238000005520 cutting process Methods 0.000 claims description 4
- 208000020442 loss of weight Diseases 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000002411 adverse Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 230000000153 supplemental effect Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
A kind of major diameter riser pipe windowing whipstock, including clinohedral, taper piston, retaining pipe, grafting joint, slips, piston cylinder and connecting cylinder, the grappling of whipstock is realized by two groups of tubular slip systems, every group of slip system includes a piston cylinder, one taper piston and a retaining pipe, in uniform 68 slips of piston barrel inner circumferential, two groups of slip systems are by connecting cylinder backwards to threaded connection, taper piston centre bore is inserted in retaining pipe one end, one end is fixed on two piston cylinders and is connected with connecting cylinder in the groove to be formed, two groups of slip systems relatively rotate by a certain angle before being welded and fixed, ensure there is one group of slips to avoid tubing string short-axis direction, effectively to overcome the adverse effect of riser pipe ovality.The utility model instrument is easy to process and assembles, good economy performance, and safety and reliability is high, can be provided for the windowing of major diameter riser pipe and reliably lead access ramp.
Description
Technical field
Oil gas well shaft sidetrack drilling tool technical field is the utility model is related to, more particularly to a kind of major diameter water proof is led
Pipe windowing whipstock.
Background technology
In oil gas field pit shaft engineering technology, window sidetracking is a kind of effective means of cost efficiency, the pass of window sidetracking
Key instrument is whipstock, and whipstock generally comprises clinohedral and anchor unit two parts, and in windowing-process, clinohedral is by grappling
Unit is anchored on predetermined well depth and the direction of shaft in wall, and limitation milling cone mills out a window by desired trajectory in pit shaft side wall,
New passage is provided for follow-up sidetracked hole and sidetrack horizontal well wellbore construction.
At present, mainly for the sleeve pipe of stock size, the technical scheme of its generally use is conventional whipstock：Clinohedral
It is screwed connection with anchor unit, tubular anchor unit there are two groups of slips to arrange up and down, is cone inclined-plane on the inside of slips, every group of card
Watt one taper piston of correspondence, two taper pistons are in same piston cylinder, and taper direction is on the contrary, among two taper pistons
Same root retaining pipe is installed, sprained pressure by pitching, taper piston is moved by hydraulic drive with respect to slips, pushing slips stretching grappling
In internal surface of sleeve pipe, the locked taper piston of retaining pipe at taper piston center, ensure whipstock grappling fastening.In the pit shaft of major diameter
Open a window in whipstock instrument, as marine drilling platform riser pipe opens a window whipstock instrument, according to above-mentioned conventional techniques,
Each component structural size super large, meet in processing and assembling and face insoluble new problem, simultaneously as caused by windowing
Iron filings amount is big, and mineshaft annulus is thick, and iron filings are not easy to recycle well head, can partly be deposited in whipstock anchor station, be clear
Except above-mentioned iron filings, it is necessary to increase the gap of whipstock body and pit shaft, it is ensured that iron filings leak through whipstock anchor station, or because of pipe
Body deformation causes pipe body drift diameter be much smaller than grappling internal diameter, this can all cause the maximum stretching external diameter of whipstock it is long-range go out body external diameter,
This needs taper piston to have longer length, ultimately results in piston cylinder size overlength, and it, which is processed, needs special lathe, in addition tiltedly
Face body ultralong overweight, the assembling of instrument are also required to match somebody with somebody special tooling, and these situations cause tool processes difficulty and manufacturing expense pole
Greatly, finally it is difficult to, in addition, major diameter riser pipe compared with conventional cannula, has larger ovality, using conventional oblique
The risk of seat extension loosely be present to the anchorage method of device, reliability is relatively low, therefore, is used for major diameter using conventional whipstock technology
Riser pipe windowing feasibility is relatively low.
Utility model content
In view of the above-mentioned problems, the utility model provides a kind of major diameter riser pipe windowing whipstock.The instrument is easy to add
Work and assembling, safety and reliability is high, can effectively overcome the adverse effect of riser pipe ovality, is that marine drilling platform is big
The windowing of diameter marine riser provides and reliably leads oblique instrument.
Technical scheme is used by the utility model solves its technical problem：A kind of major diameter pit shaft windowing whipstock,
Cut including clinohedral, jet pipe, upper slipses, taper piston, retaining pipe, lower slipses, ball seat, steel ball, connecting cylinder, piston cylinder, slips
Nail, grafting joint, bearing pin, suspender and feeding bar, clinohedral and anchor portion use " T " type body structures and two bearing pins are fixed
Connection, grafting joint are threadedly coupled with the piston cylinder of upper slipses device, the big end external screw thread of jet pipe and grafting joint interstitial hole screw thread
Connection, the big end internal thread of jet pipe are threadedly coupled as giving up with being sent into bar, and jet pipe small end is slidingly sealed company with taper piston endoporus
Composition seal cavity is connect, the grappling of whipstock is realized that every group of slip system includes one by two groups of separate slip systems
Piston cylinder, a taper piston and a retaining pipe, it is uniform that slips is arranged in piston cylinder barrel inner circumferential, with taper piston cambered surface
Contact, each slips are linked by 1 slips shear pin, and two groups of slip systems are threadedly coupled by connecting cylinder, retaining pipe one end insertion cone
Body piston center hole, one end are fixed on two piston cylinders and are connected with connecting cylinder in the groove to be formed, and two groups of slip systems pass through axle
To relative rotation, it is ensured that circumferential each corresponding slips of determination angle, to tackle the difference of riser pipe ellipticity point
Cloth.
The clinohedral is formed by cylindrical metal body through one group of plane cutting, and inclined-plane is topmost starting inclined-plane, and centre is
Main inclined plane, bottom are supplemental slanted surfaces, and clinohedral lower end is T-shape body structure, are two parallel cloth in T-shape body texture edge
The pin shaft hole put, pin shaft hole radial outside are respectively arranged locking screw holes, and on clinohedral inclined-plane, dorsal part is lightening grooves, and parallel-slope is gone
Except material loss of weight, clinohedral center section is plate-like, is to be sent into rod aperture among clinohedral.
The big end endoporus side of piston cylinder is taper piston working face, and disposed inboard grafting joint in working face open end connects
Connect screw thread, be below screw thread slips support slot circumferentially, slips support slot cross-section rectangle, outside barrel, piston cylinder small end
Side is connecting cylinder connection screw thread, and end face is retaining pipe suspension face.
The beneficial effects of the utility model are, compared with conventional whipstock technology, instrument has bigger in anchoring states slips
Stretching external diameter, tool body and windowing cylinder between have bigger gap, facilitate instrument go into the well and iron filings fall；Due to two groups
Slip system corresponds to a piston cylinder, a taper piston and a retaining pipe respectively, axially opposing can rotate, it is ensured that when seat is hung
There is one group of slips to avoid tubing string short-axis direction, can effectively overcome adverse effect of the riser pipe ovality to grappling, meanwhile, work
Having the appearance and size size reduction of part to zone of reasonableness, clinohedral and the use of grafting joint " T " type body structures and bearing pin be connected,
Tool processes and assembling difficulty substantially reduce.
Brief description of the drawings
Accompanying drawing 1 is major diameter riser pipe windowing whipstock instrument side sectional structure chart；
Accompanying drawing 2 is partial enlarged view I in accompanying drawing 1；
Accompanying drawing 3 is major diameter riser pipe windowing whipstock Facad structure figure；
Accompanying drawing 4 is profile at A-A in accompanying drawing 3；
Accompanying drawing 5 is inclined-plane body-side view；
Accompanying drawing 6 is clinohedral front view.
1. clinohedral in figure, 2. jet pipes, 3. upper slipses, 4. taper pistons, 5. retaining pipes, 6. lower slipses, 7. ball seats, 8.
Steel ball, 9. connecting cylinders, 10. piston cylinders, 11. slips shear pins, 12. grafting joints, 13. bearing pins, 14. suspenders, 15. are sent into bar,
101. originating inclined-plane, 102. main inclined planes, 103. supplemental slanted surfaces, 104. locking screw holes, 105. pin shaft holes, 106. are sent into rod aperture,
107. lightening grooves, 108. T-shape body structures.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
In shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 4, a kind of major diameter pit shaft windowing whipstock, including clinohedral 1,
Jet pipe 2, upper slipses 3, taper piston 4, retaining pipe 5, lower slipses 6, ball seat 7, steel ball 8, connecting cylinder 9, piston cylinder 10, slips are cut
Nail 11, grafting joint 12, bearing pin 13, suspender 14 and feeding bar 15.
Clinohedral 1 uses with grafting joint 12 " T " type body structures and two bearing pins 13 are fixedly connected, grafting joint 12 with it is upper
The piston cylinder 10 of slip system is threadedly coupled, and jet pipe 2 holds external screw thread to be threadedly coupled with the interstitial hole of grafting joint 12 greatly, and jet pipe 2 is big
End internal thread be sent into bar 15 be threadedly coupled conduct give up, the small end of jet pipe 2 be slidingly sealed with the endoporus of taper piston 4 be connected form it is close
Seal cavity.The grappling of whipstock realized by two groups of separate slip systems, every group of slip system include a piston cylinder 10,
It is uniform that one taper piston 4 and a retaining pipe 5, upper slipses 3 and lower slipses 6 are arranged in the barrel inner circumferential of piston cylinder 10, and with
The contact of incline plane of taper piston 4, is linked by slips shear pin 11, and two groups of slip systems are threadedly coupled by connecting cylinder 9, the one end of retaining pipe 5
The centre bore of taper piston 4 is inserted, the other end is fixed on two piston cylinders 10 and is connected with connecting cylinder 9 in the groove formed, two groups of cards
Watt device passes through axially opposing rotation, it is ensured that it is circumferential it is each determine the corresponding slips of angle, it is ellipse to tackle riser pipe section
The different distributions of circularity.
As shown in accompanying drawing 5, accompanying drawing 6, the clinohedral 1 is formed by cylindrical metal body through one group of plane cutting, and inclined-plane is most upper
End is starting inclined-plane 101, and centre is main inclined plane 102, and bottom is supplemental slanted surface 103, and the lower end of clinohedral 1 is T-shape body structure
108, it is the pin shaft hole 105 of two parallel arrangements in the side of T-shape body structure 108, the radial outside of pin shaft hole 105 is respectively arranged lock
Tight screw 104, on clinohedral inclined-plane, dorsal part is lightening grooves 107, and parallel-slope removes material loss of weight, and clinohedral center section is in plate
Shape, it is to be sent into rod aperture 106 among clinohedral 1.
It is the working face of taper piston 4 that the piston cylinder 10, which holds greatly endoporus side, and the disposed inboard grafting of working face open end connects
First 12 connection screw thread, screw thread rear portion circumferentially slips support slot, slips support slot cross-section rectangle, through barrel, piston cylinder 10
It is the connection screw thread of connecting cylinder 9 on the outside of small end, end face is the suspension face of retaining pipe 5.
A kind of major diameter riser pipe windowing whipstock that the utility model is mentioned, it is as follows using process：Whipstock group
After the completion of dress, according to the ovality distribution situation of riser pipe, the relative angle of two groups of slip systems is adjusted by rotating against
Degree, then weld each threaded connection seam and fix, slips avoids riser pipe section length direction of principal axis during ensuring anchor grappling,
Finally overcome adverse effect of the riser pipe ovality to grappling.
During field operation, whipstock is sent into well by predetermined well depth and direction by being sent into bar 15, in tubing string is sent into
Steel ball 8 is put into, circulation canal is blocked at ball seat 7, is sent into bar 15, clinohedral 1, jet pipe 2, taper piston 4, piston cylinder 10, company
Connect cylinder 9, ball seat 7, steel ball 8 collectively constitute annular seal space.Pass through pressure of spraining, the opposing pistons cylinder 10 under hydraulic coupling promotion of taper piston 4
It is mobile, because upper slipses 3 and lower slipses 6 are placed in the slip groove of piston cylinder 10, can only extend radially out, and meanwhile it is oblique with taper piston 4
Face contacts, and is connected by slips shear pin 11, and taper piston 4 is overcoming retaining pipe 5 to support resistance and cutting the same of slips shear pin 11
When, push upper slipses 3 and lower slipses 6 invade and are anchored on water proof inside pipe wall, retaining pipe 5 follows locking taper piston 4 to lock
Upper slipses 3 and lower slipses 6 keep the state of grappling.On put force feed and enter bar 15 and ensure that grappling is reliable, it is some that bar 15 is sent into rotation
Circle, complete whipstock and give up, whipstock seat is hung into.
Claims (5)
- The whipstock 1. a kind of major diameter riser pipe opens a window, including clinohedral, anchor mechanism and for connecting clinohedral, grappling machine The slip system that the grafting joint of structure, wherein anchor mechanism are mainly made up of piston cylinder, taper piston and retaining pipe, slips, card It is uniform watt to be arranged in piston cylinder barrel inner circumferential, it is characterized in that：The anchor mechanism is by separate upper slipses device with Slip system is axially symmetric to set composition, and every group of slip system is separately provided a retaining pipe, retaining pipe one end insertion cone Piston center hole, the other end are fixed together with piston cylinder, and two groups of slip system pairing portions are connected by connecting cylinder；The clinohedral Lower end is arranged to the plug in T-shape body structure, and clinohedral is along central axial provided with the feeding rod aperture penetrated；The grafting joint Upper end carries the inserting groove that the T-shape body structure plug grafting set with clinohedral lower end coordinates, and grafting joint lower ending opening, inserts Joint circumferentially carries circulation port；The plug of clinohedral is connected with the inserting groove of grafting joint by bearing pin, grafting joint and anchor Determine mechanism to connect by the piston cylinder of upper slipses device；The jet pipe being connected with vertically in grafting joint, the upper end of jet pipe are close Sealing is scheduled on grafting upper end of joint portion, and cooperation, the lower end of jet pipe and upper card are connected with the feeding bar that clinohedral is sent into rod aperture The taper piston endoporus of watt device forms the sealing that slides axially and coordinated.
- The whipstock 2. major diameter riser pipe according to claim 1 opens a window, it is characterized in that：Its inclined-plane of the clinohedral by Cylindrical metal body forms through one group of plane cutting, and inclined-plane is topmost starting inclined-plane, and centre is main inclined plane, and bottom is that auxiliary is oblique Face, clinohedral lower end are T-shape body structures, are the pin shaft holes of two parallel arrangements in T-shape body texture edge, pin shaft hole is radially Outside is respectively arranged locking screw holes, and on clinohedral inclined-plane, dorsal part is lightening grooves, and parallel-slope removes material loss of weight, among clinohedral Part is plate-like, is to be sent into rod aperture among clinohedral.
- The whipstock 3. major diameter riser pipe according to claim 1 or 2 opens a window, it is characterized in that：Slips and taper piston Inclined-plane is slidably matched, and is linked in slips with the initial involutory surface of taper piston by slips shear pin.
- The whipstock 4. major diameter riser pipe according to claim 1 or 2 opens a window, it is characterized in that：The big end of piston cylinder Endoporus side is taper piston working face, working face open end disposed inboard grafting joint connections threads, after screw thread circumferentially Slips support slot, slips support slot cross-section rectangle, is connecting cylinder connection screw thread on the outside of piston cylinder small end through barrel.
- The whipstock 5. major diameter riser pipe according to claim 1 or 2 opens a window, it is characterized in that：The connecting cylinder both ends It is threadedly coupled respectively with upper and lower piston cylinder small end, the gap between two-piston cylinder small end is used to fix retaining pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961110.3U CN207144824U (en) | 2017-08-03 | 2017-08-03 | A kind of major diameter riser pipe windowing whipstock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961110.3U CN207144824U (en) | 2017-08-03 | 2017-08-03 | A kind of major diameter riser pipe windowing whipstock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207144824U true CN207144824U (en) | 2018-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961110.3U Active CN207144824U (en) | 2017-08-03 | 2017-08-03 | A kind of major diameter riser pipe windowing whipstock |
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| Country | Link |
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| CN (1) | CN207144824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503685A (en) * | 2017-08-03 | 2017-12-22 | 中石化石油工程技术服务有限公司 | A kind of major diameter riser pipe windowing whipstock |
-
2017
- 2017-08-03 CN CN201720961110.3U patent/CN207144824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503685A (en) * | 2017-08-03 | 2017-12-22 | 中石化石油工程技术服务有限公司 | A kind of major diameter riser pipe windowing whipstock |
| CN107503685B (en) * | 2017-08-03 | 2024-03-01 | 中国石油化工股份有限公司 | Major diameter riser pipe whipstock that windows |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240119 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Patentee after: Sinopec Petroleum Engineering Technology Service Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 100101 Beichen West Road, Chaoyang District, Beijing 8 Beichen world center, block A 703. Patentee before: SINOPEC OILFIELD SERVICE Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |
|
| TR01 | Transfer of patent right |