CN205977117U - Anti sulphur of high strength aggravates drilling rod - Google Patents
Anti sulphur of high strength aggravates drilling rod Download PDFInfo
- Publication number
- CN205977117U CN205977117U CN201620735336.7U CN201620735336U CN205977117U CN 205977117 U CN205977117 U CN 205977117U CN 201620735336 U CN201620735336 U CN 201620735336U CN 205977117 U CN205977117 U CN 205977117U
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- thread
- drilling
- external screw
- high strength
- 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.)
- Active
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to an anti sulphur of high strength aggravates drilling rod adopts CY120N anti sulphur of high strength aggravates drilling rod, can make the anti sulphur performance of whole of drilling rod obtain further improvement, simultaneously it has increased a slave station shoulder through meshing department in pin thread tip and box main aspects, and the slave station is takeed on then just in time to have and is detained the locate function on certain assisting to guarantee the accurate of master shoulder face and screw thread section interference fit and realize that in addition, the slave station shoulder also can bear the part -load in operating condition, and can improve the torsional strength of drilling rod, has guaranteed the security of drilling rod, the pin thread tip of drilling rod body is trapezoid table simultaneously, trapezoid table forms the enhancement section of pin thread tip, can improve the overall intensity of drilling rod. The drilling rod is thickeied at the body interlude, has increased the intensity of drilling rod, has reduced the vibrations that the body received when the drilling rod was drilled, has prolonged the life of drilling rod, be equipped with spiral groove on the body, can let silt in the well drilling pass through the recess and up carry, reduced the resistance that the drilling rod received.
Description
Technical field
This utility model is related to a kind of high strength sulfur resisting heavy weight drill pipe, belongs to oil drill rocker technical field.
Background technology
In the drilling process of oil, natural gas, water source and mineral reserve, it is required for using drilling rod.Drilling rod passes through tool joint
Couple together, in During regular rotation, drilling rod will bear the effect of external and internal pressure, axial force, moment of flexure and moment of torsion simultaneously.
But common drilling rod intensity is not high, after life-time service, tool joint frequently can occur failure accidents so as to become
The principal mode losing efficacy for drilling rod.
Content of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of intensity high, the good high strength sulfur resisting of safety
Heavy weight drill pipe.
The purpose of this utility model is realized in：
A kind of high strength sulfur resisting heavy weight drill pipe, it includes drilling rod body, and the periphery of the pin thread small end of described drilling rod body sets
It is equipped with external screw thread, the inwall at the big end of box of drilling rod body is provided with female thread, the external screw thread of adjacent two drilling rods and female thread
Engagement is so that two drilling rods couple together, and drilling rod body is in the upper and lower ends of externally threaded upper and lower ends and female thread
Open up step surface, wherein shoulder based on the step of external screw thread lower end and female thread lower end, external screw thread upper end and female thread upper end
Step is secondary shoulder, and the pin thread small end of drilling rod body is bucking ladder simultaneously, and described bucking ladder forms the strengthening segment of pin thread small end, institute
State and in the middle of drilling rod body, be provided with body thick section, simultaneously between the pin thread small end of drilling rod body and body thick section, and drilling rod
It is equipped with helical groove between the big end of box of body and body thick section.
This utility model high strength sulfur resisting heavy weight drill pipe has advantages below：
This utility model high strength sulfur resisting heavy weight drill pipe adopts CY120N high strength sulfur resisting heavy weight drill pipe, and sulfur resistance exceedes
The requirement of IRP1.8 standard, reduces the harmful element such as P, S in material, improves the content of the element such as Mo, Cr in steel, can make
The overall sulfur resistance of drilling rod is further enhanced；
It increased a secondary shoulder, secondary shoulder and main shoulder by the engagement place in pin thread small end and the big end of box simultaneously
Form dual stage shoulder structure, main circular bead surface and thread segment produce certain interference fit, and secondary shoulder then just have certain
Bit function is anchored on auxiliary, thus ensureing the accurate realization of main circular bead surface and thread segment interference fit, additionally, secondary shoulder is in work
Also fractional load can be born in state, play certain overload protective function, and can also improve drilling rod torsional strength it is ensured that
The safety of drilling rod；
The pin thread small end of drilling rod body is bucking ladder simultaneously, and described bucking ladder forms the strengthening segment of pin thread small end, Ke Yiti
The bulk strength of high drilling rod.
Drilling rod thickeies in body interlude, increased the intensity of drilling rod, and what when decreasing drilling rod probing, body was subject to shakes,
Extend the service life of drilling rod；Body is provided with helical groove, the mud in drilling well can be allowed up to convey by groove, subtract
Lack the resistance that drilling rod is subject to.
Brief description
Fig. 1 is the structural representation of this utility model high strength sulfur resisting heavy weight drill pipe.
Fig. 2 is the connection diagram of adjacent two drilling rods.
Fig. 3 is the external screw thread of drilling rod body in Fig. 2, the enlarged drawing at female thread.
In figure：Drilling rod body 1, external screw thread 2, female thread 3, main shoulder 4, secondary shoulder 5, bucking ladder 6, helical groove 7, body
Thick section 8.
Specific embodiment
Referring to Fig. 1 to Fig. 3, this utility model is related to a kind of high strength sulfur resisting heavy weight drill pipe, including drilling rod body 1, described
The periphery of the pin thread small end of drilling rod body 1 is provided with external screw thread 2, and the inwall at the big end of box of drilling rod body 1 is provided with female thread
3, the external screw thread 2 of adjacent two drilling rods is engaged with female thread 3 so that two drilling rods couple together, and drilling rod body 1 is in outer spiral shell
The upper and lower ends of the upper and lower ends of stricture of vagina 2 and female thread 3 open up step surface, the wherein platform of external screw thread 2 lower end and female thread 3 lower end
Shoulder 4 based on rank, the step of external screw thread 2 upper end and female thread 3 upper end is secondary shoulder 5.
Described main shoulder 4 and secondary shoulder 5 form dual stage shoulder structure, and main shoulder 4 and thread segment produce certain interference and join
Close, and secondary shoulder 5 then just has in certain auxiliary and anchors bit function, thus ensureing that main shoulder 4 and the interference of thread segment are joined
The accurate realization closed, additionally, secondary shoulder 5 in working order in also can bear fractional load, play certain overload protective function, and
And the torsional strength of drilling rod can also be improved it is ensured that the safety of drilling rod.
The pin thread small end of drilling rod body 1 is bucking ladder 6 simultaneously, and described bucking ladder 6 forms the strengthening segment of pin thread small end, permissible
Improve the bulk strength of drilling rod.
It is provided with body thick section 8, this body thick section 8 increased the intensity of drilling rod, decreases in the middle of described drilling rod body 1
Be subject to during drilling rod probing shakes, and extends the service life of drilling rod, simultaneously the pin thread small end of drilling rod body 1 and body thick section
Between 4, and it is equipped with helical groove 7 between the big end of box of drilling rod body 1 and body thick section 4, described helical groove 7 can
To allow the mud in drilling well up to convey by this groove, decrease the resistance that drilling rod is subject to.
Claims (1)
1. a kind of high strength sulfur resisting heavy weight drill pipe it is characterised in that：It includes drilling rod body（1）, described drilling rod body（1）Public affairs
The periphery of button small end is provided with external screw thread（2）, drilling rod body（1）The inwall at the big end of box be provided with female thread（3）, adjacent two
The external screw thread of root drilling rod（2）With female thread（3）Engagement is so that two drilling rods couple together, and drilling rod body（1）In external screw thread
（2）Upper and lower ends and female thread（3）Upper and lower ends open up step surface, wherein external screw thread（2）Lower end and female thread（3）Under
Shoulder based on the step at end（4）, external screw thread（2）Upper end and female thread（3）The step of upper end is secondary shoulder（5）, drilling rod basis simultaneously
Body（1）Pin thread small end be bucking ladder（6）, described bucking ladder（6）Form the strengthening segment of pin thread small end, described drilling rod body（1）
Centre is provided with body thick section（8）, drilling rod body simultaneously（1）Pin thread small end and body thick section（4）Between, and drilling rod is originally
Body（1）The big end of box and body thick section（4）Between be equipped with helical groove（7）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620735336.7U CN205977117U (en) | 2016-07-13 | 2016-07-13 | Anti sulphur of high strength aggravates drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620735336.7U CN205977117U (en) | 2016-07-13 | 2016-07-13 | Anti sulphur of high strength aggravates drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205977117U true CN205977117U (en) | 2017-02-22 |
Family
ID=58023949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620735336.7U Active CN205977117U (en) | 2016-07-13 | 2016-07-13 | Anti sulphur of high strength aggravates drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205977117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014273A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | High-strength anti-sulfur heavy weight drill pipe |
-
2016
- 2016-07-13 CN CN201620735336.7U patent/CN205977117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014273A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | High-strength anti-sulfur heavy weight drill pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205977116U (en) | Take high rigidity drilling rod in antifriction area | |
| CN201705226U (en) | Integral type double-shoulder sulfur resistant drill rod | |
| CN105672904B (en) | A kind of direct linkage type hermetic seal casing for high temperature and pressure ultradeep well | |
| CN205977117U (en) | Anti sulphur of high strength aggravates drilling rod | |
| CN201144644Y (en) | Double top type hillside drill stem | |
| CN202181859U (en) | Threaded connection oil drilling rod joint with double ledges | |
| CN206144483U (en) | Anti sulphur drilling rod of high strength | |
| CN106014279A (en) | High-strength anti-sulfur drill rod | |
| CN107532459A (en) | For rotating the form of thread of shoulder type connection | |
| CN106014273A (en) | High-strength anti-sulfur heavy weight drill pipe | |
| CN204960827U (en) | Oil drilling is with airtight tool joint of little external diameter high strength | |
| CN107939303A (en) | High strength safe type drilling rod | |
| CN205778593U (en) | A kind of anti-galling drilling tool thread joint | |
| CN201301671Y (en) | Double-shoulder drill pipe joint | |
| CN107747476A (en) | Anti-shake drilling rod with antifriction band | |
| CN106014281A (en) | Highly anti-torque drill rod | |
| CN105909183A (en) | Screwed joint of high-torsion-resistance drilling tool | |
| CN202325408U (en) | Outer sliding sleeve reverse circulation short section | |
| CN201865594U (en) | Stress reducing drill pipe connector with high torsion resistance | |
| CN203308396U (en) | High-strength oil casing joint with metal interference seal | |
| CN108035683A (en) | Sulfur resistive heavy weight drill pipe | |
| CN202832275U (en) | Novel drill collar capable of reducing thread maximum stress | |
| CN202249810U (en) | Novel threaded-connection petroleum drill rod joint with double shoulders | |
| CN201144647Y (en) | Fast joint of plug-in type auger stem | |
| CN205778595U (en) | A kind of dual stage shoulder nipple of composite |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |