CN205778592U - A kind of high antitorque drilling tool thread joint - Google Patents
A kind of high antitorque drilling tool thread joint Download PDFInfo
- Publication number
- CN205778592U CN205778592U CN201620570883.4U CN201620570883U CN205778592U CN 205778592 U CN205778592 U CN 205778592U CN 201620570883 U CN201620570883 U CN 201620570883U CN 205778592 U CN205778592 U CN 205778592U
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- cylindrical section
- male connection
- thread
- female adapter
- drilling tool
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Abstract
This utility model relates to a kind of high antitorque drilling tool thread joint, and the internal thread segment of female adapter is 1:6 1:16 with the second cylindrical section thread segment range of taper of male connection；The external diameter of the second cylindrical section of male connection is more than the internal diameter of female adapter the second cylindrical section；Male connection the first cylindrical section is intersegmental for matched in clearance with female adapter the first cylinder；Male connection the second cylindrical section is intersegmental for interference fit with female adapter the second cylinder；Male connection the second cylindrical section has thread compound lubrication groove；The width of male connection thread compound lubrication groove is more than the width at the bottom of thread；The value of male connection the second cylindrical section nose circular arc chamfering radius is R1.5；The outer surface diameter of male connection the second cylindrical section is than the big 0.12mm of inner surface diameter of female adapter the second cylindrical section；Advantage is: this nipple is applicable not only to the drillng operation of conventional operating mode, is also applied for needing the complex working condition wells such as the ultradeep well of high pulling torque, ultra-long horizontal well, extended reach well, distance directional traversing.
Description
Technical field
This utility model relates to drilling tool field, is specifically related to a kind of high antitorque drilling tool thread joint.
Background technology
Drilling tool is oil and gas exploration and the important tool in exploitation, is the important component part of DRILL-STRING SYSTEM, various
Drilling tool, such as drilling rod, heavy weight drill pipe, drill collar, adapter etc., the mode being threaded connection, forms whole drill string.Drill string is not only
Be the circulation canal of drilling fluid, and in drilling well, transmit moment of torsion, bear tension and compression, bending, reverse and vibrate, impact etc. multiple
The compound action of load.Drill string motion mode in drillng operation is in addition to around own axes rotation, the most usually with well axle
Line is that axis revolves round the sun, thus causes tool joint and the borehole wall or sleeve pipe generation fretting wear, produces return motion, makes drilling tool
There is the risk released in screw thread.The interlock bit bouncing of the drill bit caused of soft or hard stratum can produce instantaneous reaction torque to drill string, makes brill
Tool screw thread releases.Additionally, because the inhomogeneities of drill bit fractured rock causes drill string to bear indulging from formation reaction
To jerk load, drill string thread joint is also made to there is the risk released.It is true that the pine that drill string is in drilling operation course
Button phenomenon happens occasionally, thus causes drilling tool thread joint generation thread gluing inefficacy and friction and wear failure.Due to threaded
Releasing, the contact pressure in torque shoulder face reduces, thus causes the thorn leakage effect in drilling tool thread torque shoulder face.Additionally, due to
Threaded releases, and intermeshing threaded stress changes, and the high stress areas of local occurs, makes screw thread even
The raw fatigue failure of sending and receiving, causes thorn leakage or the fracture of nipple.Above-mentioned these lost efficacy in the documents and materials of open report
There is substantial amounts of record.The reason that drilling tool thread joint releases mainly has a factor of following several respects: (1) drilling tool thread joint
The complicated load working condition as above born；(2) in upper button operation, torque wrench moment upper button minimum less than the name of joint
Square value；(3) self structure of current drilling tool thread joint.The most universal drilling tool thread joint used, either separate unit shoulder spiral shell
Stricture of vagina joint or the nipple of dual stage shoulder, use coarse thread.Before torque shoulder contacts, torque wrench moment value is very
Little, when torque shoulder contact after, torque value rapidly rise violently to set torque wrench moment value, as shown in Figure 1.It is to say, work as
When other factors such as vibrations or instantaneous reaction torque cause intermeshing joint circular bead surface that small reverse displacement occurs, screw thread
The torque value of joint can decline rapidly, and the nipple after especially existing certain abrasion, this is the structure that drilling tool thread releases
Design factor.
Utility model content
For solving the deficiencies in the prior art, this utility model provides a kind of high antitorque drilling tool thread joint.
The technical solution of the utility model is: a kind of high antitorque drilling tool thread joint, including female adapter and external screw thread
Joint, described female adapter includes the first torque shoulder face, the first cylindrical section, internal thread segment, the second cylindrical section, and second turns round
Square circular bead surface；Male connection includes the first torque shoulder face, the first cylindrical section, external thread section, the second cylindrical section, the second moment of torsion
Circular bead surface, the internal thread segment of described female adapter is 1:6-1 with the second cylindrical section thread segment range of taper of male connection:
16；The external diameter of the second cylindrical section of described male connection is more than the internal diameter of female adapter the second cylindrical section；Male connection
First cylindrical section is intersegmental for matched in clearance with female adapter the first cylinder；Male connection the second cylindrical section and female adapter
Second cylinder is intersegmental for interference fit；Male connection the second cylindrical section has thread compound lubrication groove；Male connection thread compound moistens
The width of chute is more than the width at the bottom of thread；The value of male connection the second cylindrical section nose circular arc chamfering radius is R1.5；
The outer surface diameter of male connection the second cylindrical section is than the big 0.12mm of inner surface diameter of female adapter the second cylindrical section.
The width of described male connection thread compound lubrication groove is more than the width 0.5mm at the bottom of thread.
The thread compound lubrication groove surface of the second cylindrical section of described male connection uses smooth circular sliding slopes.
The internal thread segment of described female adapter is 1:12 with the thread segment taper ratio of male connection.
The beneficial effects of the utility model are: this nipple is applicable not only to the drillng operation of conventional operating mode, is also suitable
In needing the complex working condition wells such as the ultradeep well of high pulling torque, ultra-long horizontal well, extended reach well, distance directional traversing；Described interior,
Male connection after upper button, the contact surface of the second cylindrical section inner surface of externally threaded second cylindrical section outer surface and female thread
Between interference fit will produce radial force, produce elastic deformation energy, make break-out torque increase, effectively reduce tool joint and make
Produce the risk of " detaining on secondary " during with, improve the security reliability of tool joint；Described internal and external screw thread joint is upper
After button, the first torque shoulder face effectively contacts with the second torque shoulder face, makes nipple have high torsional property；Described
Internal and external screw thread joint is after upper button, and through test, torsional strength improves more than 50% than the API nipple of same specification.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of male connection the second cylindrical section of the present utility model.
Wherein: 1 for male connection, 11 be the first torque shoulder face, 12 be the first cylindrical section, 13 for external thread section, 14
Be the second cylindrical section, 15 be the second torque shoulder face, 16 at the bottom of thread, 17 be thread compound lubrication groove, 18 be the second cylindrical section
Outer surface, 19 for nose circular arc chamfering radius, 2 for female adapter, 21 be the first torque shoulder face, 22 be the first cylindrical section,
23 it is internal thread segment, 24 is the second cylindrical section, 25 is the second torque shoulder face.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described.
A kind of high antitorque drilling tool thread joint, including female adapter 2 and male connection 1, described female adapter 2
Including the first torque shoulder face 21, the first cylindrical section 22, internal thread segment 23, the second cylindrical section 24, the second torque shoulder face 25；Outward
Nipple 1 includes the first torque shoulder face 11, the first cylindrical section 12, external thread section 13, the second cylindrical section 14, the second moment of torsion platform
Shoulder face 15, the internal thread segment 23 of described female adapter 2 and the second cylindrical section (14) the thread segment range of taper of male connection 1
For 1:6-1:16；The external diameter of the second cylindrical section 14 of described male connection 1 is interior more than female adapter 2 second cylindrical section 24
Footpath；It is matched in clearance between male connection 1 first cylindrical section 12 and female adapter 2 first cylindrical section 22；Male connection 1
It is interference fit between two cylindrical sections 14 and female adapter 2 second cylindrical section 24；Male connection 1 second cylindrical section 14 has screw thread
Grease lubrication groove 17；The width of male connection 1 thread compound lubrication groove 17 is more than the width of 16 at the bottom of thread；Male connection 1
The value of two cylindrical section 14 nose circular arc chamfering radiuses 19 is R1.5；Male connection 1 second cylindrical section outer surface 18 diameter ratio is interior
The big 0.12mm of inner surface diameter of nipple 2 second cylindrical section 24.
The width of described male connection 1 thread compound lubrication groove 17 is more than the width 0.5mm of 16 at the bottom of thread.
Thread compound lubrication groove 17 surface of the second cylindrical section 14 of described male connection 1 uses smooth circular sliding slopes.
The internal thread segment 23 of described female adapter 2 is 1:12 with the thread segment taper ratio of male connection 1.
Implementing parameter more than using, internal and external screw thread joint is when upper button, and externally threaded second cylindrical section outer surface 18 is with interior
Second cylindrical section 24 inner surface contact of screw thread, forms interference fit, increases torque wrench moment.Along with screwing of screw thread, external screw thread
The contact surface of the second cylindrical section outer surface 18 and the second cylindrical section 24 inner surface of female thread increase, torque wrench moment gradually increases
Greatly.Subsequently, the second torque shoulder face of internal and external threads joint successively contacts with the first torque shoulder face, and torque value reaches default
Value, completes button.
Implementing parameter more than using, internal and external screw thread joint is after upper button, and externally threaded second cylindrical section outer surface 18 is with interior
Interference fit between the contact surface of the second cylindrical section 24 inner surface of screw thread will produce radial force, produce elastic deformation energy, make to unload
Button moment of torsion increases, effectively reduce tool joint in use produce " detain on secondary " and risk, improve tool joint
Security reliability.
Use and above implement parameter, internal and external screw thread joint after upper button, the first torque shoulder face and the second torque shoulder face
Effectively contact, makes nipple have high torsional property.
Implementing parameter more than using, internal and external screw thread joint is after upper button, and through test, torsional strength is than the API spiral shell of same specification
Stricture of vagina joint improves 55%.
Claims (4)
1. a high antitorque drilling tool thread joint, including female adapter (2) and male connection (1), it is characterised in that: described
Female adapter (2) include the first torque shoulder face (21), the first cylindrical section (22), internal thread segment (23), the second cylindrical section
(24), the second torque shoulder face (25)；Male connection (1) includes the first torque shoulder face (11), the first cylindrical section (12), outward
Thread segment (13), the second cylindrical section (14), the second torque shoulder face (15), the internal thread segment (23) of described female adapter (2)
It is 1:6-1:16 with the second cylindrical section (14) the thread segment range of taper of male connection (1)；The of described male connection (1)
The external diameter of two cylindrical sections (14) is more than the internal diameter of female adapter (2) second cylindrical section (24)；Male connection (1) first cylinder
It is matched in clearance between section (12) and female adapter (2) first cylindrical section (22)；Male connection (1) second cylindrical section (14) with
It is interference fit between female adapter (2) second cylindrical section (24)；Male connection (1) second cylindrical section (14) has thread compound to moisten
Chute (17)；The width of male connection (1) thread compound lubrication groove (17) is more than the width of (16) at the bottom of thread；Male connection
The value of (1) second cylindrical section (14) nose circular arc chamfering radius (19) is R1.5；Male connection (1) second cylindrical section outer surface
(18) diameter is than the big 0.12mm of inner surface diameter of female adapter (2) second cylindrical section (24).
The high antitorque drilling tool thread joint of one the most according to claim 1, it is characterised in that: described male connection (1)
The width of thread compound lubrication groove (17) is more than the width 0.5mm of (16) at the bottom of thread.
The high antitorque drilling tool thread joint of one the most according to claim 1, it is characterised in that: described male connection
(1) thread compound lubrication groove (17) surface of the second cylindrical section (14) uses smooth circular sliding slopes.
The high antitorque drilling tool thread joint of one the most according to claim 1, it is characterised in that: described female adapter (2)
The thread segment taper ratio of internal thread segment (23) and male connection (1) be 1:12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620570883.4U CN205778592U (en) | 2016-06-15 | 2016-06-15 | A kind of high antitorque drilling tool thread joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620570883.4U CN205778592U (en) | 2016-06-15 | 2016-06-15 | A kind of high antitorque drilling tool thread joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205778592U true CN205778592U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620570883.4U Active CN205778592U (en) | 2016-06-15 | 2016-06-15 | A kind of high antitorque drilling tool thread joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205778592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909183A (en) * | 2016-06-15 | 2016-08-31 | 东营威玛石油钻具有限公司 | Screwed joint of high-torsion-resistance drilling tool |
-
2016
- 2016-06-15 CN CN201620570883.4U patent/CN205778592U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105909183A (en) * | 2016-06-15 | 2016-08-31 | 东营威玛石油钻具有限公司 | Screwed joint of high-torsion-resistance drilling tool |
| WO2017215183A1 (en) * | 2016-06-15 | 2017-12-21 | 东营威玛石油钻具有限公司 | High torsion drill pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257091 No. 5 West Front Street, Shandong, Dongying Patentee after: Shandong Weima Equipment Technology Co., Ltd Address before: 257091 No. 5 West Front Street, Shandong, Dongying Patentee before: DONGYING WEIMA PETROLEUM DRILLING TOOLS Co.,Ltd. |