CN207309853U - A kind of wear-resistant sleeve of downhole drilling instrument takes out instrument - Google Patents
A kind of wear-resistant sleeve of downhole drilling instrument takes out instrument Download PDFInfo
- Publication number
- CN207309853U CN207309853U CN201720855716.9U CN201720855716U CN207309853U CN 207309853 U CN207309853 U CN 207309853U CN 201720855716 U CN201720855716 U CN 201720855716U CN 207309853 U CN207309853 U CN 207309853U
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- China
- Prior art keywords
- mandril
- wear
- resistant sleeve
- stop collar
- gripping mechanism
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Abstract
The wear-resistant sleeve that the utility model is related to a kind of downhole drilling instrument takes out instrument.Its technical solution is to include mandril, gripping mechanism and withdrawing device, gripping mechanism is connected in the lower part of mandril, gripping mechanism includes stop collar, limited block is inserted on stop collar, support tube is equipped with the middle part of mandril, withdrawing device is connected on the top of mandril, withdrawing device includes nut set, and rotating handles is provided with the top of nut set.The beneficial effects of the utility model are：The device is equipped with gripping mechanism and withdrawing device, being covered by rotating nuts pulls mandril to extract gripping mechanism together with wear-resistant sleeve, one people can complete independently, avoid being pounded out the dangerous approach of wear-resistant sleeve with hammer, reach not only safety, but also cost-effective purpose, it is easy to operate, securely and reliably, it is light and handy convenient, easy to carry and field application.
Description
Technical field
It the utility model is related to a kind of wear-resistant sleeve and take out instrument, more particularly to a kind of wear-resistant sleeve of downhole drilling instrument
Taking-up instrument.
Background technology
Impulse generator assembly is one of chief component of MWD instruments, is connected to the bottom of MWD instruments, is used for
Cause mud pressure in drilling rod to produce change, achieve the purpose that transmission signal.Valve cylinder is the important component of impulse generator, bullet
Spring and piston move reciprocatingly in valve cylinder.In order to reduce the abrasion of valve cylinder, increase the service life of valve cylinder, be equipped with valve cylinder by resistance to
Wear-resistant sleeve made of grinding material, so only needs to change wear-resistant sleeve in care and maintenance equipment, and valve cylinder then may be reused.
Since valve cylinder is subject to the extruding and abrasion of spring and piston in the process, wear-resistant sleeve is caused to deform, so taking out wear-resistant sleeve
It is very difficult.The mode for taking out wear-resistant sleeve at present is to be inserted into sizeable iron, the hand steered iron of a people from wear-resistant sleeve pin end
And valve cylinder, a people are pounded out with hammer.Operation process is time-consuming and laborious, be easy to cause personnel's injury, dangerous big.Sometimes wear-resistant sleeve without
Method is taken out or is damaged valve cylinder during taking out, and can only together be scrapped with valve cylinder, causes the waste of accessory.
The content of the invention
The purpose of this utility model is aiming at drawbacks described above existing in the prior art, there is provided a kind of downhole drilling instrument
The wear-resistant sleeve of device takes out instrument, effectively raises the efficiency of wear-resistant sleeve taking-up, and is conducive to protect the intact of valve cylinder inner wall, drop
The low labor intensity and danger of staff.
Its technical solution is to include mandril, gripping mechanism and withdrawing device, and gripping mechanism, clamping are connected in the lower part of mandril
Device includes stop collar, and limited block is inserted on stop collar, and the lower part of mandril is equipped with external screw thread, internal thread is equipped with stop collar,
Screw-internal thread fit connection in the lower external thread and stop collar of mandril；Support tube is equipped with the middle part of mandril, in the upper of mandril
Portion connects withdrawing device, and withdrawing device includes nut set, is provided with rotating handles on the top of nut set, is set on the top of mandril
There is external screw thread, internal thread is equipped with nut set, upper external thread and the nut of mandril cover upper screw-internal thread fit and be connected, described
Support tube is fixedly connected with nut set by blanking cover.
Above-mentioned stop collar middle and lower part offers two symmetrical rectangular holes, and limited block is inserted into rectangular hole.
Above-mentioned nut set is equipped with circular hole with mandril top, and rotating handles is passed through out of circular hole.
Above-mentioned mandril bottom to be coniform, limited block in two symmetrical rectangular holes towards one end of mandril be in circular arc
Shape, circular arc coincide with mandril bottom circular cone on two limited blocks, and mandril screws in stop collar, and mandril bottom circular cone pushes limited block.
Above-mentioned stop collar outside diameter is less than support tube internal diameter, and support tube outside diameter is more than valve cylinder outside diameter.
Above-mentioned mandril screws in downwards stop collar ejecting limit block, and nut set rotation drives mandril to move upwards, mandril to
Upper movement drives stop collar, limited block to move upwards.
The beneficial effects of the utility model are：The utility model effectively raises the efficiency of wear-resistant sleeve taking-up, and favorably
In the intact of protection valve cylinder inner wall, the labor intensity and danger of staff are reduced, which is equipped with gripping mechanism and takes
Go out device, by rotating nuts cover pull mandril gripping mechanism is extracted together with wear-resistant sleeve, a people can complete independently, avoid
The dangerous approach of wear-resistant sleeve is pounded out with hammer, reaches not only safety, but also cost-effective purpose, it is easy to operate, securely and reliably, lightly
It is convenient, easy to carry and field application.
Brief description of the drawings
Attached drawing 1 is the profile of the utility model；
Attached drawing 2 is the stereogram of the utility model；
Attached drawing 3 is the structure diagram of rotating handles；
Attached drawing 4 is gripping mechanism structure diagram；
Attached drawing 5 is the structure diagram of withdrawing device；
In figure：Rotating handles 1, nut set 2, support tube 3, mandril 4, limited block 5, stop collar 6, blanking cover 7, circular hole 8.
Embodiment
The preferred embodiment of the utility model is illustrated below in conjunction with attached drawing, it will be appreciated that described herein excellent
Select embodiment to be only used for describing and explaining the present invention, be not used to limit the utility model.
The utility model includes mandril 4, gripping mechanism and withdrawing device, and gripping mechanism, clamping are connected in the lower part of mandril 4
Device includes stop collar 6, and limited block 5 is inserted on stop collar 6, and the lower part of mandril 4 is equipped with external screw thread, is equipped with stop collar 6 interior
Screw thread, the lower external thread of mandril 4 are connected with the screw-internal thread fit on stop collar 6；Support tube 3 is equipped with the middle part of mandril 4,
The top connection withdrawing device of mandril 4, withdrawing device include nut set 2, and rotating handles 1 is provided with the top of nut set 2,
The top of mandril 4 is equipped with external screw thread, is covered in nut and internal thread is equipped with 2, interior on upper external thread and the nut set 2 of mandril 4
Thread fitting connects, and the support tube 3 is fixedly connected with nut set 2 by blanking cover 7.
Wherein, 6 middle and lower part of stop collar offers two symmetrical rectangular holes, is inserted into rectangular hole spacing
Block 5, without prejudice to limited block free movement.
In addition, the nut set 2 is equipped with circular hole 8 with 4 top of mandril, rotating handles 1 is passed through out of circular hole 8.
In addition, 4 bottom of mandril is coniform, the limited block 5 in two symmetrical rectangular holes is towards the one of mandril 4
It is in arc-shaped to hold, and circular arc coincide with 4 bottom circular cone of mandril on two limited blocks 5, and mandril 4 screws in stop collar 6,4 bottom of mandril circle
Cone pushes limited block 5, limited block is pushed out simultaneously clamping wear-resistant sleeve.
In addition, 6 outside diameter of stop collar is less than 3 internal diameter of support tube, 3 outside diameter of support tube is more than valve cylinder outside diameter.
In addition, mandril 4 screws in downwards 6 ejecting limit block 5 of stop collar, 2 rotation of nut set drives mandril 4 to move upwards, pushes up
Movement drives stop collar 6, limited block 5 to move upwards to bar 4 upwards, so as to drive wear-resistant sleeve to move upwards, realizes taking for wear-resistant sleeve
Go out.
The utility model effectively raises the efficiency of wear-resistant sleeve taking-up, and is conducive to protect the intact of valve cylinder inner wall, drop
The low labor intensity and danger of staff, which is covered by rotating nuts pulls mandril by gripping mechanism together with wear-resisting
Set is extracted together, a people can complete independently, avoid being pounded out the dangerous approach of wear-resistant sleeve with hammer, reached not only safety, but save into
This purpose, easy to operate, securely and reliably, light and handy convenient, easy to carry and field application.
The utility model is equipped with gripping mechanism and withdrawing device, and gripping mechanism, mandril lower part is connected with stop collar by screw thread
Connect.Mandril lower part is in coniform, is equipped with the square hole of symmetrical connection in the middle part of stop collar, can be respectively put into limited block.Mandril screws in
Two limited blocks are released while stop collar, are clamped in wear-resistant sleeve inner wall；Withdrawing device, has on screw thread and mandril in nut set
Portion's thread fitting, support tube ensure that nut set is constant with the relative position of valve cylinder, and rotating handles can be by mandril together with card when rotating
Tight device is together extracted.
The operation principle of the utility model is：Nut set, nut set internal thread and mandril are driven by twisting rotating handles
Convert rotational motion is driven mandril to extract gripping mechanism together with wear-resistant sleeve by thread fitting to be axially moved, and ensure that valve cylinder not
It is damaged, can reuses, add the working life of valve cylinder.
The above, is only the preferred embodiment of the utility model, and any those skilled in the art may profit
Equivalent technical solution is changed the utility model or is revised as with the technical solution of above-mentioned elaboration.Therefore, foundation
Any simple modification or substitute equivalents that the technical solution of the utility model is carried out, belong to the greatest extent the requires of the utility model protection
Scope.
Claims (6)
1. a kind of wear-resistant sleeve of downhole drilling instrument takes out instrument, it is characterized in that：Including mandril（4）, gripping mechanism and take
Go out device, in mandril（4）Lower part connection gripping mechanism, gripping mechanism includes stop collar（6）, stop collar（6）Upper insertion is spacing
Block（5）, mandril（4）Lower part be equipped with external screw thread, in stop collar（6）It is equipped with internal thread, mandril（4）Lower external thread and limit
Position set（6）On screw-internal thread fit connection；In mandril（4）Middle part be equipped with support tube（3）, in mandril（4）Top connection take
Go out device, withdrawing device includes nut set（2）, in nut set（2）Top rotating handles is installed（1）, in mandril（4）It is upper
Portion is equipped with external screw thread, in nut set（2）It is equipped with internal thread, mandril（4）Upper external thread and nut set（2）On internal thread
It is connected, the support tube（3）With nut set（2）Pass through blanking cover（7）It is fixedly connected.
2. a kind of wear-resistant sleeve of downhole drilling instrument according to claim 1 takes out instrument, it is characterized in that：Spacing
Set（6）Middle and lower part offers two symmetrical rectangular holes, and limited block is inserted into rectangular hole（5）.
3. a kind of wear-resistant sleeve of downhole drilling instrument according to claim 1 takes out instrument, it is characterized in that：The spiral shell
Mother set（2）With mandril（4）Top is equipped with circular hole（8）, rotating handles（1）From circular hole（8）Inside pass through.
4. a kind of wear-resistant sleeve of downhole drilling instrument according to claim 1 takes out instrument, it is characterized in that：The top
Bar（4）Bottom is coniform, the limited block in two symmetrical rectangular holes（5）Towards mandril（4）One end be in arc-shaped, two
A limited block（5）Upper circular arc and mandril（4）Bottom circular cone coincide, mandril（4）Screw in stop collar（6）, mandril（4）Bottom circular cone pushes away
Squeeze limited block（5）.
5. a kind of wear-resistant sleeve of downhole drilling instrument according to claim 1 takes out instrument, it is characterized in that：Stop collar
（6）Outside diameter is less than support tube（3）Internal diameter, support tube（3）Outside diameter is more than valve cylinder outside diameter.
6. a kind of wear-resistant sleeve of downhole drilling instrument according to claim 1 or 4 takes out instrument, it is characterized in that：Top
Bar（4）Stop collar is screwed in downwards（6）Ejecting limit block（5）, nut set（2）Rotation drives mandril（4）Movement upwards, mandril（4）
Movement drives stop collar upwards（6）, limited block（5）Movement upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855716.9U CN207309853U (en) | 2017-07-14 | 2017-07-14 | A kind of wear-resistant sleeve of downhole drilling instrument takes out instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720855716.9U CN207309853U (en) | 2017-07-14 | 2017-07-14 | A kind of wear-resistant sleeve of downhole drilling instrument takes out instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207309853U true CN207309853U (en) | 2018-05-04 |
Family
ID=62433745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720855716.9U Active CN207309853U (en) | 2017-07-14 | 2017-07-14 | A kind of wear-resistant sleeve of downhole drilling instrument takes out instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207309853U (en) |
-
2017
- 2017-07-14 CN CN201720855716.9U patent/CN207309853U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220218 Address after: 100029 Chaoyang District, Beijing Hui Xin Street six, Twelfth level. Patentee after: SINOPEC OILFIELD SERVICE Corp. Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. Patentee after: Sinopec Jingwei Co.,Ltd. Patentee after: Shengli directional well company of Sinopec Jingwei Co.,Ltd. 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: DRILLING WELL ENGINEERING TECHNOLOGY COMPANY OF SINOPEC SHENGLI PETROLEUM ENGINEERING Co.,Ltd. |