CN213540253U - Horizontal well drilling pressure control tool - Google Patents
Horizontal well drilling pressure control tool Download PDFInfo
- Publication number
- CN213540253U CN213540253U CN202022434922.7U CN202022434922U CN213540253U CN 213540253 U CN213540253 U CN 213540253U CN 202022434922 U CN202022434922 U CN 202022434922U CN 213540253 U CN213540253 U CN 213540253U
- Authority
- CN
- China
- Prior art keywords
- rotor
- spring
- horizontal well
- snap ring
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005553 drilling Methods 0.000 title description 23
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000003801 milling Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a horizontal well weight on bit control tool, include: the casing of installing on the horizontal well bores, the internal thread connection rotor is passed through to the inboard one end of casing, the side other end and middle part are equipped with snap ring one and snap ring two respectively between casing and the rotor, install ball bearing between snap ring one and the snap ring two, one end is equipped with the spring between casing and the rotor, spring other end fixed connection spring holder, the spring holder other end is equipped with the sealing washer that passes the rotor, the sealing washer side is equipped with inserts the spring catch of establishing the casing inboard. Its simple structure through the oiling of oiling mouth, utilizes spring elasticity, restoring force to take place displacement through the rotor and changes the weight on bit, and it is rotatory through the ball bearing, changes the weight on bit action convenient operation, and is sealed effectual, and the safety index is high.
Description
Technical Field
The utility model relates to a horizontal well bores appurtenance field, in particular to horizontal well weight on bit control instrument.
Background
At present, no special underground tool for controlling the drilling pressure of the drilling and milling operation of the horizontal well exists, and the traditional drilling pressure applying mode obviously has the defects of unknown and unmeasurable drilling pressure, difficulty in accurate operation on the ground and the like. In the horizontal well drilling and milling technology, the application of the axial drilling pressure of a horizontal shaft is a difficult problem, at present, the application of the axial drilling pressure of the horizontal shaft mainly depends on the weight of an upper drilling tool, and the traditional drilling pressure application mode has obvious defects: one, the magnitude of the compression is not measurable. Due to the existence of the horizontal wellbore, the drilling pressure vertically applied on the ground is often overcome by friction between the pipe column and the inner wall of the casing, axial compression deformation of the pipe column, bending or buckling deformation of the pipe column, and the like in the process of converting the drilling pressure into the horizontal thrust at the bottom of the well, and the drilling pressure is unknown and cannot be measured when being transmitted to the drilled and milled object or the fished object. The axial drilling pressure of the horizontal well is very important in the drilling and milling technology, and the drilling pressure directly influences the drilling, grinding and milling efficiency, the service life of a drill bit, a grinding shoe and a milling shoe, and the size of abrasive dust and drill cuttings. Secondly, the ground is not easy to operate. In the traditional drilling pressure applying mode, the size of the drilling pressure at the bottom of the well is controlled by the drilling amount on the ground, the complicated mechanical characteristics of a pipe column in a horizontal well barrel make the control mode unreliable, the expected drilling pressure cannot be obtained frequently, too large vertical drilling pressure is applied at the wellhead blindly, and the situations of pump holding, downward movement of drilled and milled objects, tool damage and the like can be caused.
SUMMERY OF THE UTILITY MODEL
To prior art in the above-mentioned not enough, the utility model provides a horizontal well weight on bit control tool, it utilizes spring force, restoring force to take place displacement through the rotor and changes the weight on bit through the oiling of glib talker, and it is rotatory through the ball bearing, changes weight on bit action convenient operation, and is sealed effectual, and the safety index is high.
In order to achieve the above object, the utility model adopts the following technical scheme:
a horizontal well weight-on-bit control tool comprising: the casing of installing on the horizontal well bores, the internal thread connection rotor is passed through to the inboard one end of casing, the side other end and middle part are equipped with snap ring one and snap ring two respectively between casing and the rotor, install ball bearing between snap ring one and the snap ring two, one end is equipped with the spring between casing and the rotor, spring other end fixed connection spring holder, the spring holder other end is equipped with the sealing washer that passes the rotor, the sealing washer side is equipped with inserts the spring catch of establishing the casing inboard.
Furthermore, the number of the ball bearings is two, and the upper part between the two ball bearings is communicated with the oil injection nozzle in threaded connection with the shell.
Furthermore, a spacer is arranged in the middle of the ball bearing.
Furthermore, an O-shaped sealing ring I is sleeved between the sealing ring and the spring seat.
Furthermore, an O-shaped sealing ring II is sleeved on the external thread of the rotor.
The utility model has the advantages that:
its simple structure through the oiling of oiling mouth, utilizes spring elasticity, restoring force to take place displacement through the rotor and changes the weight on bit, and it is rotatory through the ball bearing, changes the weight on bit action convenient operation, and is sealed effectual, and the safety index is high.
Drawings
Fig. 1 is a schematic structural view of the present invention;
reference symbol comparison table:
1-rotor, 2-shell, 3-sealing ring, 4-spring pin, 5-ball bearing, 6-spacer, 7-snap ring I, 8-snap ring II, 9-O type sealing ring I, 10-spring seat, 11-spring, 12-oil injection nozzle and 13-O type sealing ring II.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.
As shown in fig. 1, a horizontal well weight-on-bit control tool comprises: install shell 2 on the horizontal well bores, female connection rotor 1 is passed through to 2 inboard one ends of shell, the side other end and middle part are equipped with snap ring 7 and snap ring two 8 respectively between shell 2 and the rotor 1, install ball bearing 5 between snap ring 7 and the snap ring two 8, one end is equipped with spring 11 between shell 2 and the rotor 1, spring 11 other end fixed connection spring holder 10, the spring holder 10 other end is equipped with the sealing washer 3 that passes rotor 1, 3 sides of sealing washer are equipped with and insert and establish 2 inboard spring pins 4 of shell.
The number of the ball bearings 5 is two, and an oil injection nozzle 12 in threaded connection with the shell 2 is communicated between the two ball bearings. And a spacer 6 is arranged in the middle of the ball bearing 5. An O-shaped sealing ring I9 is sleeved between the sealing ring 3 and the spring seat 10. And an O-shaped sealing ring II 13 is sleeved on the external thread of the rotor 1.
In the device use, it utilizes spring elasticity, restoring force to take place displacement through the rotor and changes the weight of boring through the oiling mouth oiling, and it is rotatory through the ball bearing, changes the weight of boring action convenient operation, and is sealed effectual, and the safety index is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. A horizontal well weight-on-bit control tool, comprising: install shell (2) on the horizontal well bores, female connection rotor (1) is passed through to shell (2) inboard one end, side other end and middle part are equipped with snap ring (7) and snap ring two (8) respectively between shell (2) and rotor (1), install ball bearing (5) between snap ring (7) and the snap ring two (8), one end is equipped with spring (11) between shell (2) and rotor (1), spring (11) other end fixed connection spring holder (10), spring holder (10) other end is equipped with sealing washer (3) of passing rotor (1), sealing washer (3) side is equipped with inserts and establishes shell (2) inboard spring catch (4).
2. The tool for controlling the bit pressure of the horizontal well according to claim 1, wherein: the number of the ball bearings (5) is two, and the upper part between the two ball bearings is communicated with an oil injection nozzle (12) in threaded connection with the shell (2).
3. The tool for controlling the bit pressure of the horizontal well according to claim 1, wherein: and a spacer (6) is arranged in the middle of the ball bearing (5).
4. The tool for controlling the bit pressure of the horizontal well according to claim 1, wherein: an O-shaped sealing ring I (9) is sleeved between the sealing ring (3) and the spring seat (10).
5. The tool for controlling the bit pressure of the horizontal well according to claim 1, wherein: and an O-shaped sealing ring II (13) is sleeved on the external thread of the rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022434922.7U CN213540253U (en) | 2020-10-28 | 2020-10-28 | Horizontal well drilling pressure control tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022434922.7U CN213540253U (en) | 2020-10-28 | 2020-10-28 | Horizontal well drilling pressure control tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213540253U true CN213540253U (en) | 2021-06-25 |
Family
ID=76501296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022434922.7U Expired - Fee Related CN213540253U (en) | 2020-10-28 | 2020-10-28 | Horizontal well drilling pressure control tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213540253U (en) |
-
2020
- 2020-10-28 CN CN202022434922.7U patent/CN213540253U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210625 |