CN211397490U - Lengthened sulfur-resistant drill rod joint - Google Patents
Lengthened sulfur-resistant drill rod joint Download PDFInfo
- Publication number
- CN211397490U CN211397490U CN201922495742.7U CN201922495742U CN211397490U CN 211397490 U CN211397490 U CN 211397490U CN 201922495742 U CN201922495742 U CN 201922495742U CN 211397490 U CN211397490 U CN 211397490U
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- pipe
- tool joint
- compression spring
- activity ring
- screw thread
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Abstract
The utility model relates to a tool joint field discloses anti sulphur tool joint of extension, including the tool joint body, the tool joint body is including external screw thread pipe, first pipe, second pipe and the tail pipe that sets up in proper order, external screw thread pipe, first pipe, second pipe and tail pipe be coaxial integrative structure, and the junction of first pipe and second pipe forms the step face, helical compression spring and activity ring are cup jointed to first outside of the tubes, helical compression spring and activity ring are the first pipe of sliding connection respectively, the activity ring is located and is close to external screw thread pipe one side, helical compression spring's one end is supported and is pasted terminal surface, the other end of activity ring and is supported and paste the step face of first pipe and second union coupling, be equipped with the internal thread in the tail pipe. The utility model discloses can prevent that the threaded connection of tool joint and drilling rod from appearing becoming flexible, avoid influencing normal moment of torsion transmission and carrying mud, have better anti sulphur performance, impact toughness is high, is suitable for the safety drilling under the sulphur environment.
Description
Technical Field
The utility model relates to a tool joint field, concretely relates to anti sulphur tool joint of extension.
Background
The drilling rod plays the effect of transmission moment of torsion and transport mud at the well drilling in-process, contains hydrogen sulfide in stratum or oil well some, dissociating hydrogen ion, and hydrogen stress cracking is the great hidden danger of safe probing, and in addition, the drilling rod probably leads to the threaded connection of drilling rod joint and drilling rod to appear becoming flexible owing to the vibration in the course of the work, and the screw thread is not hard up, leads to the drilling rod to connect insecure, unable normal transmission moment of torsion and mud, influences normal use.
SUMMERY OF THE UTILITY MODEL
In view of the not enough of background art, the utility model provides an anti sulphur tool joint of extension, the problem of solution is prior art, and the drilling rod is not hard up appears in the threaded connection of tool joint and drilling rod probably appearing in the course of the work.
For solving the technical problem, the utility model provides a following technical scheme:
extension sulphur-resistant tool joint, including the tool joint body, the tool joint body is including external screw thread pipe, first pipe, second pipe and the tail pipe that sets up in proper order, external screw thread pipe, first pipe, second pipe and tail pipe are coaxial integrative structure, and the junction of first pipe and second pipe forms the step face, spiral compression spring and activity ring are cup jointed to the first outside of tubes, spiral compression spring and activity ring are the first pipe of sliding connection respectively, the activity ring is located and is close to external screw thread pipe one side, spiral compression spring's one end supports terminal surface, the other end of pasting the activity ring and supports the step face of pasting first pipe and second union coupling department, be equipped with the internal thread in the tail pipe.
According to the technical scheme, after the drill rod joint body is in threaded connection with the drill rod, the spiral compression spring sleeved on the drill rod joint body is extruded and compressed, the tension of the spiral compression spring is applied to the threads through the movable ring, friction force is increased, threaded connection is prevented from loosening, and twisting force is eliminated.
Preferably, the second pipe is provided with a plurality of notches on the periphery, the plurality of notches are uniformly distributed along the circumferential direction, and the notches are used for screwing or unscrewing the drill rod joint by using a spanner.
Preferably, the drill rod joint body is subjected to sulfur-resistant heat treatment and sulfur-resistant heat treatment, so that the drill rod joint body structure has good sulfur-resistant performance, the yield strength is improved, the impact toughness is increased, and the requirement of safe drilling in a sulfur-containing environment is met.
In addition, the length of the external thread pipe can be increased, and the impact toughness can be further improved.
Compared with the prior art, the utility model following beneficial effect has at least:
1) the looseness of the threaded connection between the drill rod joint and the drill rod can be prevented, and the influence on normal torque transmission and slurry conveying is avoided;
2) has better sulfur resistance and high impact toughness, and is suitable for safe drilling in a sulfur-containing environment.
Drawings
The utility model discloses there is following figure:
FIG. 1 is a schematic view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and 2, the lengthened sulfur-resistant drill pipe joint comprises a drill pipe joint body 10, wherein the drill pipe joint body 10 comprises an external threaded pipe 1, a first pipe 2, a second pipe 3 and a tail pipe 4 which are sequentially arranged, the external threaded pipe 1, the first pipe 2, the second pipe 3 and the tail pipe 4 are of a coaxial integrated structure, a step surface 5 is formed at the joint of the first pipe 2 and the second pipe 3, a spiral compression spring 6 and a movable ring 7 are sleeved outside the first pipe 2, the spiral compression spring 6 and the movable ring 7 are respectively connected with the first pipe 2 in a sliding mode, the movable ring 7 is located on one side close to the external threaded pipe 1, one end of the spiral compression spring 6 abuts against the end surface of the movable ring 7, the other end abuts against the step surface 5 at the joint of the first pipe 2 and the second pipe 3, and an internal thread is arranged in the tail pipe 4.
According to the technical scheme, after the drill rod joint body 10 and the drill rod 20 are in threaded connection, the spiral compression spring 6 sleeved on the drill rod joint body 10 is extruded and compressed, the tension of the spiral compression spring 6 is applied to threads through the movable ring 7, friction force is increased, threaded connection is prevented from loosening, and twisting force is eliminated.
In addition, the periphery of the second pipe 3 is provided with a plurality of notches 8, the notches 8 are uniformly distributed along the circumferential direction, and the notches 8 are used for screwing or unscrewing the drill rod joint by using a wrench.
In addition, the drill rod joint body 10 is subjected to sulfur-resistant heat treatment and sulfur-resistant heat treatment, so that the structure of the drill rod joint body 10 has good sulfur-resistant performance, the yield strength is improved, the impact toughness is increased, and the requirement of safe drilling in a sulfur-containing environment is met.
In light of the above, the present invention is not limited to the above embodiments, and various changes and modifications can be made by the worker without departing from the scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. Extension sulphur resistant tool joint, its characterized in that: including the tool joint body, the tool joint body is including external screw thread pipe, first pipe, second pipe and the tail pipe that sets up in proper order, external screw thread pipe, first pipe, second pipe and tail pipe are coaxial integrative structure, and the junction of first pipe and second pipe forms the step face, spiral compression spring and activity ring are cup jointed outward to first pipe, spiral compression spring and activity ring are the first pipe of sliding connection respectively, the activity ring is located and is close to external screw thread pipe one side, the one end of spiral compression spring is supported and is pasted terminal surface, the other end of activity ring and support the step face of pasting first pipe and second union coupling department, be equipped with the internal thread in the tail pipe.
2. The extended sulfur resistant drill pipe joint of claim 1, wherein: a plurality of notches are formed in the periphery of the second pipe and are evenly distributed along the circumferential direction.
3. The extended sulfur resistant drill pipe joint of claim 1, wherein: the drill rod joint body is subjected to sulfur-resistant heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495742.7U CN211397490U (en) | 2019-12-31 | 2019-12-31 | Lengthened sulfur-resistant drill rod joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922495742.7U CN211397490U (en) | 2019-12-31 | 2019-12-31 | Lengthened sulfur-resistant drill rod joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397490U true CN211397490U (en) | 2020-09-01 |
Family
ID=72211240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922495742.7U Active CN211397490U (en) | 2019-12-31 | 2019-12-31 | Lengthened sulfur-resistant drill rod joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397490U (en) |
-
2019
- 2019-12-31 CN CN201922495742.7U patent/CN211397490U/en active Active
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