CN203626678U - Mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing - Google Patents
Mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing Download PDFInfo
- Publication number
- CN203626678U CN203626678U CN201320695106.9U CN201320695106U CN203626678U CN 203626678 U CN203626678 U CN 203626678U CN 201320695106 U CN201320695106 U CN 201320695106U CN 203626678 U CN203626678 U CN 203626678U
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- mandrel
- groove
- horizontal well
- well drilling
- mechanical type
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Abstract
The utility model relates to a mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing. The tool is characterized by comprising an upper joint (1), an outer barrel (2), a lower joint (3) and a mandrel (5), wherein the upper joint (1) is connected with the outer barrel (2) through a left-hand non-tapered thread; the mandrel (5) is connected with the lower joint (3) through a left-hand non-tapered thread; a first groove (8) is formed in the lower part of the inner side of the upper joint (1), a second groove (9) is formed in the upper part of the front end of the mandrel (5), and the first groove (8) and the second groove (9) are matched in an embedded manner; a bulging step (7) is arranged on the outer side of the top of the mandrel (5) and limited in the first groove (8); a spring (6) is arranged between the lower end surface of the upper joint (1) and the mandrel (5); and the outer side of the mandrel (5) is connected with the outer barrel (2) through two sealing grooves (4). According to the tool, the spring mechanism is introduced, so that the stable, continuous, magnitude-knowable and magnitude-adjustable horizontal well shaft axial bit pressure is provided for the lower joint.
Description
Technical field
The utility model relates to a kind of mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling.
Background technology
At present also without the special axial weight on bit control tool of salvaging for Horizontal Well Drilling milling, traditional the pressure of the drill apply mode obviously have the pressure of the drill size unknowable, can not measure, ground is difficult for the shortcomings such as accurate operation.Given this, should develop a kind of axial weight on bit control tool for Horizontal Well Drilling milling fishing, so that steady and continuous, known, the regulatable horizontal wellbore axial weight on bit of size to be provided.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling, to overcome the defect existing in prior art.
The technical solution of the utility model is: a kind of mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling, is characterized in that: comprise top connection, urceolus, lower contact and mandrel; Wherein, top connection is connected with urceolus by left-handed non-taper thread, and mandrel is connected with lower contact by left-handed non-taper thread; Top connection lower inside is provided with the first groove, and mandrel upper front end is provided with the second groove, the first groove and the second groove tabling, and mandrel top outer is provided with the step of protrusion, and step is limited in the first groove; Between the lower surface of top connection and mandrel, be provided with spring; Mandrel outside is connected with urceolus by 2 road sealing grooves.
The cross section of the inner surface of described urceolus and the external surface of mandrel is regular hexagon.
Technique effect of the present utility model is:
The utility model is introduced spring mechanism, thereby provides a steady and continuous, known, the big or small adjustable horizontal wellbore axial weight on bit of size to lower contact.Tubing string weight provides enough the pressure of the drill, and this pressure of the drill forces lower contact and mandrel to move vertically, Compress Spring, until mandrel step contacts with top connection groove upper surface, spring reaches maximum compression distance simultaneously, imposes on axial weight on bit of mandrel and lower contact.Once the function instrument of tubing string (as drill bit, junk mill, die nipple, female coupling tap etc.) even and between drilled milling thing or salvaged thing, there is very little gap, spring will extend, between the upper surface of lower contact groove and mandrel step, also there will be gap, the pressure of the drill of now top connection carrying will force mandrel step to get back to original position, spring also reaches maximum compression distance again, thereby the axial weight on bit of a steady and continuous is provided to lower contact.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Reference numeral is:
1-top connection, 2-urceolus, 3-lower contact, 4-seal groove, 5-mandrel, 6-spring, 7-step, the 8-the first groove, the 9-the second groove.
The specific embodiment
The utility model relates to when repairing horizontal well field, is one of underground operation tool important in oil, gas field Horizontal Well Drilling mill, cover milling, thread making (back-off) salvaging construction operation.
Referring to Fig. 1, the concrete structure of a kind of mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling that the utility model relates to is:
Comprise top connection 1, urceolus 2, lower contact 3 and mandrel 5; Wherein, top connection 1 is connected with urceolus 2 by left-handed non-taper thread, and mandrel 5 is connected with lower contact 3 by left-handed non-taper thread; Top connection 1 lower inside is provided with the first groove 8, and mandrel 5 upper front end are provided with the second groove 9, the first grooves 8 and the second groove 9 tablings, and mandrel 5 top outer are provided with the step 7 of protrusion, and step 7 is limited in the first groove 8; Between the lower surface of top connection 1 and mandrel 5, be provided with spring 6; Mandrel 5 outsides are connected with urceolus 2 by 2 road sealing grooves 4.Step 7 can slide along the first groove 8 of top connection 1 lower inside, the upper and lower end face of the first groove 8 is groove 8 length restriction mandrel 5 move axially distance, this distance is also the maximum compression distance of spring 6.Spring 6 in the utility model between top connection 1 and mandrel 5 is prefabricated in advance according to construction demand, make its reach above-mentioned maximum compression apart from time the elastic force of different brackets can be provided, thereby realize the object that the axial weight on bit that size is known, size is adjustable is provided.According to construction demand, the spring 6 of replaceable different model reaches the object that loads varying level pit shaft axial weight on bit.
The external surface size of the inner surface of urceolus 2 and mandrel 5 coupling in the utility model, cross section is regular hexagon, and convenient slip mutually, can carry certain moment of torsion simultaneously.
Once 3 fastening means of lower contact are stuck, there is moving back button sign in whole pipe string, and the left-handed non-taper thread of this tool interior connecting portion starts to link closely, and stops back-off, and can offset and move back button moment of torsion.
The pressure of the drill that relies on top tubing string weight to transmit, once this pipe string end, instrument place touches drilled milling thing or salvaged thing, lower contact 3 and mandrel 5 move vertically, Compress Spring 6, until step 7 contacts with the first groove 8 upper surfaces, now spring 6 reaches maximum compression distance, imposes on 3 one axial weight on bits of mandrel 5 and lower contact, and now ground is by sending the pipe string weight of brill amount control to be converted to big or small and above-mentioned spring-compressed apart from the axial weight on bit matching.
The parts that the present embodiment does not describe in detail and structure belong to well-known components and common structure or the conventional means of the industry, here not narration one by one.
Claims (2)
1. a mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling, is characterized in that: comprise top connection (1), urceolus (2), lower contact (3) and mandrel (5); Wherein, top connection (1) is connected with urceolus (2) by left-handed non-taper thread, and mandrel (5) is connected with lower contact (3) by left-handed non-taper thread; Top connection (1) lower inside is provided with the first groove (8), mandrel (5) upper front end is provided with the second groove (9), the first groove (8) and the second groove (9) tabling, mandrel (5) top outer is provided with the step (7) of protrusion, and step (7) is limited in the first groove (8); Between the lower surface of top connection (1) and mandrel (5), be provided with spring (6); Mandrel (5) outside is connected with urceolus (2) by 2 road sealing grooves (4).
2. the mechanical type axial weight on bit control tool of salvaging for Horizontal Well Drilling milling according to claim 1, is characterized in that: the cross section of the external surface of the inner surface of urceolus (2) and mandrel (5) is regular hexagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695106.9U CN203626678U (en) | 2013-11-06 | 2013-11-06 | Mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320695106.9U CN203626678U (en) | 2013-11-06 | 2013-11-06 | Mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203626678U true CN203626678U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320695106.9U Expired - Fee Related CN203626678U (en) | 2013-11-06 | 2013-11-06 | Mechanical type axial bit pressure control tool for horizontal well drilling, milling and fishing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203626678U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594837A (en) * | 2015-01-07 | 2015-05-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well drilling pressure control tool |
| CN104948130A (en) * | 2015-07-10 | 2015-09-30 | 中国海洋石油总公司 | Radial jet bit pressure controller and bit pressure controlling method |
| CN105003220A (en) * | 2015-06-23 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Continuous oil pipe horizontal well drilling grinding and pumping type composite bridge plug process |
| CN111911103A (en) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
-
2013
- 2013-11-06 CN CN201320695106.9U patent/CN203626678U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104594837A (en) * | 2015-01-07 | 2015-05-06 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Horizontal well drilling pressure control tool |
| CN105003220A (en) * | 2015-06-23 | 2015-10-28 | 中国石油集团渤海钻探工程有限公司 | Continuous oil pipe horizontal well drilling grinding and pumping type composite bridge plug process |
| CN105003220B (en) * | 2015-06-23 | 2017-09-05 | 中国石油集团渤海钻探工程有限公司 | Coiled tubing Horizontal Well Drilling grinds pumped type composite bridge plug technique |
| CN104948130A (en) * | 2015-07-10 | 2015-09-30 | 中国海洋石油总公司 | Radial jet bit pressure controller and bit pressure controlling method |
| CN111911103A (en) * | 2020-08-11 | 2020-11-10 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
| CN111911103B (en) * | 2020-08-11 | 2023-10-20 | 中国石油天然气集团有限公司 | Hydraulic booster and use method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20211106 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |