CN206756433U - A kind of slips whipstock experimental rig - Google Patents
A kind of slips whipstock experimental rig Download PDFInfo
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- CN206756433U CN206756433U CN201720150885.2U CN201720150885U CN206756433U CN 206756433 U CN206756433 U CN 206756433U CN 201720150885 U CN201720150885 U CN 201720150885U CN 206756433 U CN206756433 U CN 206756433U
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- whipstock
- sleeve pipe
- slips
- flange
- experimental rig
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Abstract
The utility model provides a kind of slips whipstock experimental rig, to solve the problems, such as that slips whipstock has potential safety hazard in ground experiment.The slips whipstock experimental rig includes the test casing that lower end can be inserted into oil well and the sleeve pipe connection flange for joint test sleeve pipe that can be fixed on oil well mouth mounting flange, described sleeve pipe adpting flange is provided with the installation portion being used for the sealing assembling of well head mounting flange, the suspended structure for being used for hanging slips whipstock is provided with inside the test casing upper end, sealing is so that pressurize in test casing between the suspended structure and test casing.The experiment of slips whipstock is carried out in oil well, will not produce potential safety hazard because pressure when testing is excessive.And the experiment of slips whipstock can be repeatedly carried out by more casing replacing, a variety of experiments such as setting, the packing element pressure-bearing of well-flushing, slips can be carried out by the experimental rig.
Description
Technical field
A kind of experimental rig is the utility model is related to, specially a kind of slips whipstock experimental rig.
Background technology
Casing window sidetracking well is in oil（Gas）In well production string in the predetermined direction with depth, using certain
Instrument and technique windowing drilling, make the well after brill deviate certain distance and the well of angle with former well head vertical line.And it is most main to open a window
The instrument wanted is whipstock and milling cone, and whipstock mainly play the guiding role in windowing-process, and guiding milling cone is oblique along whipstock
Milling sleeve pipe downwards, so as to which sleeve pipe is milled out a valid window, so that the rear side that opens a window bores lower drilling tool and solid completion construction.
The species of whipstock mainly has mechanical whipstock, fluid pressure type whipstock and ground anchor type whipstock at present, wherein most
Conventional fluid pressure type whipstock, fluid pressure type whipstock have the characteristics of simple in construction, seat extension success rate is high in underground；Hydraulic pressure at present
Formula whipstock relies primarily on stretching slips and is embedded in the seat extension that whipstock is realized on sleeve pipe on sleeve pipe, makees so as to realize to be oriented to
With.Whipstock when in use, should carry out well-flushing first, to clean sleeve pipe, improve the success of whipstock seat extension and setting sleeve pipe
Rate.
The domestic correlation test to whipstock is typically carried out on the ground at present, and experimental rig is fairly simple, primary structure
For experiment sleeve pipe and the upper and lower joint at sleeve pipe both ends, the upper and lower joint at sleeve pipe both ends is connected with pressure testing pipeline, realized oblique
Device seat is hung and other correlation functions；But this easy experimental rig is hung due to whipstock seat and pressed when being tested on ground
Power must reach 25MPa, and the whipstock packing element pressure-bearing experiment with sealing function reaches 35MPa, and slips whipstock is in ground experiment
When in the presence of certain potential safety hazard.And the experiment that whipstock is carried out on ground can not really simulate whipstock real work
When state, can not completely simulate the whole of whipstock and use process, can not such as carry out well-flushing.
Utility model content
The purpose of this utility model is to provide a kind of slips whipstock experimental rig, to solve slips whipstock on ground
The problem of potential safety hazard during experiment be present.
To achieve the above object, the technical scheme of the utility model slips whipstock experimental rig is：A kind of slips is oblique
Device experimental rig, including lower end can be inserted into the test casing in oil well and can be fixed on oil well mouth mounting flange and be used to connect
The sleeve pipe connection flange of test casing, described sleeve pipe adpting flange are provided with the installation being used for the sealing assembling of well head mounting flange
Portion, the test casing upper end inside are provided with the suspended structure for being used for hanging slips whipstock, the suspended structure and experiment set
Sealing is so that pressurize in test casing between pipe.
Further, described sleeve pipe adpting flange lower end is provided with the axial boss for being used for inserting well head mounting flange, sleeve pipe
Adpting flange lower end is provided with test casing mounting hole.
Sleeve pipe connection flange upper end is provided with bellmouth, and tapered opening is gradually reduced downwards by sleeve pipe connection flange upper end.
Casing hanger is provided with inside test casing upper end, is and sleeve pipe connection flange outside described sleeve pipe hanger upper end
The taper surface of bellmouth matching, described sleeve pipe hanger are described suspended structure.
Outside sleeve pipe connection flange bellmouth and casing hanger sealing ring is provided between taper surface.
The first joint for hanging slips whipstock is provided with suspended structure and for connecting with lifting means, action pressure-testing joint
The second joint connect.
Suspended structure upper end, which is provided with, to be used to compress suspended structure and the supported flange structure of sleeve pipe connection flange.
Test casing lower end is connected with lower contact, and the lower contact is provided with flowing hole.
The beneficial effects of the utility model are：The lower end of test casing is stretched into oil well, is provided with oil well mouth fixed
Flange, installation sleeve pipe adpting flange carrys out connection sleeve pipe on well head mounting flange, fixes position of the sleeve pipe in oil well.Do tiltedly
Need to carry out backwash well operations before to the experiment of device, well-flushing circulation fluid in the annular space of oil well and test casing by entering, by testing
Discharged in sleeve pipe, it is being set on sleeve pipe connection flange to make sleeve pipe connection method with the sealing assembling of well head mounting flange installation portion
Sealed between blue and well head mounting flange, prevent well-flushing circulation fluid by the gap between sleeve pipe connection flange and well head mounting flange
In ooze out.Sealing can make test casing pressurize during experiment between suspended structure and test casing, prevent liquid by hanging
Flowed out in gap between hanging hang structure and test casing, cause insufficient pressure in test casing.The experiment of slips whipstock be
Carried out in oil well, potential safety hazard will not be produced because pressure when testing is excessive.And can repeatedly it be entered by more casing replacing
The experiment of row slips whipstock, a variety of experiments such as setting, the packing element pressure-bearing of well-flushing, slips can be carried out by the experimental rig.
Brief description of the drawings
Fig. 1 is the embodiment schematic diagram of slips whipstock experimental rig of the present utility model.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of slips whipstock experimental rig of the present utility model, as shown in Figure 1, it is illustrated that 1 is nut, and 2 are
Bolt, 3 be supported flange, and 4 be sleeve pipe connection flange, and 5 be well head mounting flange, and 6 be Φ 177.8mm oil wells, and 7 be to be connect under sleeve pipe
Head, 8 be Φ 139.7mm test casings, and 9 be sealing ring, and 10 be sealing ring, and 11 be casing hanger.Wherein, Φ 177.8mm oil
There are supporting equipment, such as water injecting pipeline 12 on well 6, water injecting pipeline can cover before the experiment of whipstock is done to oil well and experiment
Pipe carries out well-flushing.The lower end of Φ 139.7mm test casings 8 is stretched into Φ 177.8mm oil wells 6, and lower end is connected with sleeve pipe lower contact
7, offer multiple through holes 13 in lower contact, liquid during well-flushing under its lower end connection by the sleeve pipe of through hole 13, connecing
Head, it can prevent during testing because the failure of slips whipstock slips causes slips whipstock to fall into oil well.Oil well mouth is provided with
Well head mounting flange 5, the position of well head mounting flange 5 are fixed.Axial hole, well head fixation are offered in well head mounting flange 5
The upper surface of orchid 5 is placed with sleeve pipe connection flange 4, and there is axial boss the lower end of sleeve pipe connection flange 4, stretches into well head mounting flange
In 5 axial hole, sealing ring 9 is provided between well head mounting flange 5 and sleeve pipe connection flange 4, sealing ring 9 can ensure carrying out
During anti-flushing well by the circulation well cleanup liquid of injection in water injecting pipeline 12 will not flow to well head mounting flange 5 and sleeve pipe connection flange 4 it
Between gap in, cause the insufficient pressure of circulation fluid and anti-flushing well can not be realized.Sealing ring 9 be sleeve pipe connection flange 4 on
The installation portion of the sealing assembling of well head mounting flange 5.Axial hole is provided with the boss of sleeve pipe connection flange 4, the lower end of axial hole is opened
If internal thread, the upper end of axial hole is taper, and taper surface section is gradually reduced downwards by the upper end of sleeve pipe connection flange 4.Φ
There is external screw thread outside the upper end of 139.7mm test casings 8, be connected with the internal thread of the axial hole lower end of sleeve pipe connection flange 4, make Φ
139.7mm test casings 8 are connected as a single entity with sleeve pipe connection flange 4, and sleeve pipe connection flange 4 and Φ 139.7mm test casings 8 rely on
The supporting role of well head mounting flange 5 is fixed in Φ 177.8mm oil wells 6.Have inside the upper end of Φ 139.7mm test casings 8
Casing hanger 11（It is commonly called as peckled turnip）, the upper end outside of casing hanger 11 is taper, tapered form and sleeve pipe connection flange
The conical section shape of 4 axial hole upper ends is consistent, and on 11 bellmouths for hanging over sleeve pipe connection flange 4 of casing hanger, lower end is stretched
Enter the upper end inside Φ 139.7mm test casings 8.There is sealing ring 10 to carry out between casing hanger 11 and sleeve pipe connection flange 4
Sealing, sealing ring 10 can ensure that, when doing the experiment of whipstock packing element pressure-bearing and slips pressure-bearing, the liquid in sleeve pipe can be protected
Holding in certain pressure, prevents liquid by being oozed out in the gap between casing hanger 11 and sleeve pipe connection flange 4.Sleeve pipe is hung
The inside of device 11 offers axial hole, and axial hole both ends are equipped with jointing, and joint 14 is used to connect lifting means and pressure testing
Joint, joint 15 are used to connect whipstock.During experiment, casing hanger 11 can play connection lower section slips whipstock
Effect, can also play a part of pressurize sealing.The upper end of sleeve pipe connection flange 4 is provided with supported flange 3, is opened in supported flange 3
There is axial hole, passed through for action pressure-testing joint, the lower surface of supported flange 3 presses down on the upper surface of casing hanger 11.Compress
It is fastenedly connected between flange 3, sleeve pipe connection flange 4 and well head mounting flange 5 by the fastening effect of bolt 2 and nut 1,
By the fastening effect of screw bolt and nut, supported flange 3 can be made to be pressed on the upper surface of casing hanger 11, hang sleeve pipe
The clamp sleeve adpting flange 4 of hanging device 11, improves both sealing properties.
In the present embodiment, joint 14 is the second joint, and joint 15 is the first joint, and through hole 13 constitutes flowing hole, sleeve pipe
Hanger 11 is suspended structure.
During work, the sleeve pipe lower contact 7 with through hole 13 is connected on the lower end of Φ 139.7mm test casings 8 first, by Φ
The upper end of 139.7mm test casings 8 is arranged on sleeve pipe connection flange 4, and sealing ring is placed on the upper surface of well head mounting flange 5
9, and coating butter, hung with row or other lifting means, Φ 139.7mm test casings 8 and sleeve pipe connection flange 4 are arranged on well
On mouth mounting flange 5.The short circuit of giving up of slips whipstock and decentralization slips whipstock is connected on the joint 15 of casing hanger,
The joint 14 of casing hanger connects action pressure-testing joint, and sealing ring 10 is placed on the cone-shaped inner hole wall of sleeve pipe connection flange 4, will
The instrument row connected lifts up into capable lifting, in Φ 139.7mm test casings 8.Supported flange 3 is hanged installed in sleeve pipe
On the upper surface of hanging device, clamp sleeve hanger 11, with 12 screw bolt passes supported flanges 3, sleeve pipe connection flange 4, well
Mouth mounting flange 5, is respectively that bolt is attached with nut, three is connected as one.From the water injecting pipeline 12 of oil well to oil
Water filling in well, discharge capacity progressively increase to 25L/s from small to large, and regimen condition is returned at the change of observation pump pressure and well head test joint,
, then can termination of pumping as well-flushing passage is normal.Action pressure-testing joint and pressure testing pipeline are connected, turn on pump is from central tube into slips whipstock
Suppressed, suppress 25Mpa, voltage stabilizing 3min, then lay down bolt, lay down upper flange, above carry 3-4t, confirm the card of whipstock
0.5-1t is above carried after watt setting, then rotates forward back-off, makes give up short circuit and whipstock separation, is hung casing hanger and lost with row
Hand short circuit proposes.The short circuit that will give up is laid down, again tripping in casing hanger, and upper flange, action pressure-testing joint and examination are fixed with bolt
Pressure pipeline connects, and turn on pump suppresses 35Mpa, voltage stabilizing 5min, pressure release after pressure testing is qualified from central tube.After the completion of experiment, spiral shell is laid down
Bolt, propose supported flange 3, casing hanger 11, slips whipstock, sleeve pipe connection flange 4 and Φ 139.7mm test casings 8.
In the other embodiment of the utility model slips whipstock experimental rig, the size of test casing and oil well can be with
Carried out according to actual tests demand supporting.
In the other embodiment of the utility model slips whipstock experimental rig, sleeve pipe connection flange 4 and well head are fixed
Sealing means can not use sealing ring 9 between flange 5, can be sealed using other modes, such as sealing gasket or sleeve pipe
The lower end of adpting flange 4 and the upper end of well head mounting flange 5 by the way of threaded connection, now on sleeve pipe connection flange be used for
The installation portion of well head mounting flange sealing assembling is sealing gasket or helicitic texture.
In the other embodiment of the utility model slips whipstock experimental rig, casing hanger 11 and sleeve pipe connection method
Sealing means between orchid 4 can not use sealing ring, such as be sealed using sealing gasket or directly threaded connection.
In the other embodiment of the utility model slips whipstock experimental rig, casing hanger and sleeve pipe connection flange can
To be integrally machined, screwed hole is opened up on the centre position of sleeve pipe connection flange and is used for connection sleeve pipe, but spiral shell in the embodiment
It is very big that line opens up difficulty.
In the other embodiment of the utility model slips whipstock experimental rig, suspended structure can be that upper end is flanged
The structure of disk, ring flange are close on the upper surface of sleeve pipe connection flange, the ring flange of suspended structure and sleeve pipe connection flange it
Between seal assembling.
In the other embodiment of the utility model slips whipstock experimental rig, sleeve pipe connection flange and well head mounting flange
Between sealing ring can be arranged on the axial hole of well head mounting flange.
Claims (8)
- A kind of 1. slips whipstock experimental rig, it is characterised in that：The test casing that can be inserted into oil well including lower end and it can consolidate The sleeve pipe connection flange for joint test sleeve pipe being scheduled on oil well mouth mounting flange, described sleeve pipe adpting flange, which is provided with, to be used for With the installation portion of well head mounting flange sealing assembling, the test casing upper end inside, which is provided with, to be used to hang the outstanding of slips whipstock Hanging hang structure, sealing is so that pressurize in test casing between the suspended structure and test casing.
- 2. slips whipstock experimental rig according to claim 1, it is characterised in that：Described sleeve pipe adpting flange lower end is set There is the axial boss for inserting well head mounting flange, sleeve pipe connection flange lower end is provided with test casing mounting hole.
- 3. slips whipstock experimental rig according to claim 2, it is characterised in that：Sleeve pipe connection flange upper end is provided with cone Shape hole, tapered opening are gradually reduced downwards by sleeve pipe connection flange upper end.
- 4. slips whipstock experimental rig according to claim 3, it is characterised in that：Set is provided with inside test casing upper end Pipe hanger, described sleeve pipe hanger upper end outside is the taper surface matched with sleeve pipe connection flange bellmouth, and described sleeve pipe is hanged Hanging device is described suspended structure.
- 5. slips whipstock experimental rig according to claim 4, it is characterised in that：Sleeve pipe connection flange bellmouth and set Outside pipe hanger sealing ring is provided between taper surface.
- 6. slips whipstock experimental rig according to claim 1, it is characterised in that：It is provided with suspended structure and is used to hang First joint of slips whipstock and the second joint for being connected with lifting means, action pressure-testing joint.
- 7. slips whipstock experimental rig according to claim 1, it is characterised in that：Suspended structure upper end, which is provided with, to be used to press The supported flange structure of tight suspended structure and sleeve pipe connection flange.
- 8. the slips whipstock experimental rig according to claim any one of 1-7, it is characterised in that：Test casing lower end connects Lower contact is connected to, the lower contact is provided with flowing hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150885.2U CN206756433U (en) | 2017-02-20 | 2017-02-20 | A kind of slips whipstock experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150885.2U CN206756433U (en) | 2017-02-20 | 2017-02-20 | A kind of slips whipstock experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206756433U true CN206756433U (en) | 2017-12-15 |
Family
ID=60609515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720150885.2U Active CN206756433U (en) | 2017-02-20 | 2017-02-20 | A kind of slips whipstock experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206756433U (en) |
-
2017
- 2017-02-20 CN CN201720150885.2U patent/CN206756433U/en active Active
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