CN209799887U - Drill collar protection joint - Google Patents
Drill collar protection joint Download PDFInfo
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- CN209799887U CN209799887U CN201920289266.0U CN201920289266U CN209799887U CN 209799887 U CN209799887 U CN 209799887U CN 201920289266 U CN201920289266 U CN 201920289266U CN 209799887 U CN209799887 U CN 209799887U
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- connector
- drill collar
- mounting groove
- protection
- contact
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Abstract
The utility model discloses a drill collar protection joint, including the body of rod, connector, its characterized in that: the one end of the body of rod sets up the columnar connector, and the annular side of connector is equipped with the connector of being connected with drill collar spiral fit, the outer terminal surface and the drill collar contact of connector, and the outer terminal surface of connector sets up annular second mounting groove, and the bottom surface distribution of second mounting groove sets up a plurality of springs, just slide in the second mounting groove and set up the protection cushion, the terminal contact of spring on protection cushion and the second mounting groove bottom, and the contact surface extrusion contact of protection cushion surface and drill collar, the diameter of the body of rod is greater than the diameter of drill collar, and the body of rod end that sets up the connector is equipped with the chamfer, sets up the connector body of rod one end surface sets up the external screw thread, and threaded connection has annular protective block. The utility model discloses simple structure uses safe and reliable, and the manpower is practiced thrift in the installation of being convenient for dismantlement, improves work efficiency.
Description
Technical Field
The utility model relates to an oil development technical field especially relates to a drill collar protection joint.
Background
At present, the most common drill collar for petroleum drilling is an integral drill collar, and the drill collar has two problems in the use process: firstly, the slip and the safety slip are required to be matched for use when the drill is tripped out, the drill collar is clamped at a well head, time and labor are wasted, and the safety is not guaranteed; secondly, in the process of long-time screwing and unscrewing of the drill collar, the connection part of the threaded screw thread is the weakest link, and the phenomenon of thread-wrong screwing and gluing often occurs in field use, so that the threaded screw thread is easy to wear and needs to be pulled back to a factory for repairing again.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a drill collar protection joint to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
The utility model provides a drill collar protection joint, includes the body of rod, connector, its characterized in that: one end of the rod body is provided with a columnar connector, and the annular side face of the connector is provided with the connector which is in spiral fit connection with the drill collar.
the outer terminal surface and the drill collar contact of connector, and the outer terminal surface of connector sets up annular second mounting groove, and the bottom surface distribution of second mounting groove sets up a plurality of springs, just it sets up the protection cushion to slide in the second mounting groove, and the terminal contact of spring on protection cushion and the second mounting groove bottom surface, and the contact surface extrusion contact of protection cushion surface and drill collar.
The diameter of the rod body is larger than that of the drill collar, and a chamfer angle is arranged at the tail end of the rod body provided with the connector.
Furthermore, the outer surface of one end of the rod body provided with the connector is provided with an external thread and is spirally connected with an annular protection block.
Furthermore, the one end that the protection piece is close to the connector sets up the sealing washer, the interior anchor ring of sealing washer and the surperficial laminating of chamfer.
Furthermore, the sealing ring is in an annular block shape, and an external thread in spiral fit with the protection block is arranged on the outer surface of the sealing ring.
Further, the chamfer is arranged at 30 degrees.
Further, the inner wall circumference of second mounting groove distributes along the spout that its degree of depth extends, the surface circumference evagination of protection cushion has the slider with the spout one-to-one, and every the notch department of spout all is equipped with the dog that the restriction slider breaks away from corresponding spout, the dog passes through bolted connection with the connector.
Furthermore, an annular first mounting groove is formed in the contact end face of the rod body and the drill collar, an elastic gasket matched with the first mounting groove in shape is arranged in the first mounting groove, and the outer surface of the elastic gasket is in extrusion contact with the contact face of the drill collar.
The utility model has the advantages that:
The utility model discloses a drill collar joint includes the body of rod and connector, and the diameter of the body of rod is greater than the drill collar diameter to make the drill collar in-process of playing down, only need the slips, do not need safe slips, it is more convenient to make the drill collar play down, and is safer, and increased the holistic rigidity of drill collar stand, during the pressurization drilling, reduce drill collar bending space, be favorable to preventing oblique straightening, reduced the area of contact of drill collar stand with the wall of a well simultaneously, rub and hinder greatly reduced.
The utility model discloses the protection cushion that sets up plays the effect that adsorbs axial load, avoids damaging the screw mouth of threaded connection department for device life is longer.
the utility model discloses the effect of supporting the drill collar is further played to the protection piece that sets up, uses safe and reliable more.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
FIG. 1 is a schematic view of the connection structure between the drill collar and the present invention;
FIG. 2 is a schematic view of the structure of the connection head of the present invention;
FIG. 3 is an enlarged view of the point A of FIG. 1 according to the present invention;
Fig. 4 is an enlarged view of fig. 1 at B.
In the figure: the device comprises a rod body 1, a drill collar 2, a protection block 3, a sealing ring 4, a protection cushion block 5, a chamfer 6, an elastic gasket 7, a first mounting groove 8, a stop block 9, a second mounting groove 10, a sliding block 11 and a connector 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, a drill collar protection joint comprises a rod body 1 and a connector 12, and is characterized in that: one end of the rod body 1 is provided with a columnar connector 12, and the annular side surface of the connector 12 is provided with the connector 12 which is in spiral fit connection with the drill collar 2.
The outer terminal surface and the drill collar 2 contact of connector 12, and the outer terminal surface of connector 12 sets up annular second mounting groove 10, and the bottom surface distribution of second mounting groove 10 sets up a plurality of springs, just slide in the second mounting groove 10 and set up protection cushion 5, the terminal contact of spring on protection cushion 5 and the second mounting groove 10 bottom surface, and the contact surface extrusion contact of 5 surfaces of protection cushion and drill collar 2.
The diameter of the rod body 1 is larger than that of the drill collar 2, and the tail end of the rod body 1 provided with the connector 12 is provided with a chamfer 6.
furthermore, the outer surface of one end of the rod body 1, which is provided with the connector 12, is provided with an external thread and is spirally connected with an annular protection block 3.
Further, a sealing ring 4 is arranged at one end, close to the connector 12, of the protection block 3, and the inner ring surface of the sealing ring 4 is attached to the surface of the chamfer 6; the sealing effect is better.
Further, the method comprises the following steps: the sealing ring 4 is in an annular block shape, and the outer surface of the sealing ring 4 is provided with an external thread which is spirally matched with the protection block 3; the installation is convenient.
Furthermore, chamfer 6 is 30 degrees settings, easy to assemble.
Further, the inner wall circumference of second mounting groove 10 distributes along the spout that its degree of depth extends, the surface circumference evagination of protection cushion 5 has the slider 11 with the spout one-to-one, and every the notch department of spout all is equipped with the dog 9 that restriction slider 11 breaks away from corresponding the spout, dog 9 passes through bolted connection with connector 12, is convenient for install protection cushion 5.
furthermore, an annular first mounting groove 8 is formed in the contact end face of the rod body 1 and the drill collar 2, an elastic gasket 7 matched with the first mounting groove in shape is arranged in the first mounting groove 8, and the outer surface of the elastic gasket 7 is in extrusion contact with the contact face of the drill collar 2; the axial load is absorbed, and the elastic washer 7 and the drill collar 2 have static friction force and can bear certain radial force.
when the protective joint is used, the slips clamp the top of the drill collar, and the outer diameter of the rod body of the protective joint is larger than the diameter of the drill collar, so that the protective joint is just blocked on the slips, a safety slip is not needed, the installation steps are saved, the labor and the time are saved, and the protective joint is safer; the utility model provides a protection joint screw thread wearing and tearing back only need lift off to get back to the factory and restore just can, the pulling expense and the repair expense of drill collar that have significantly reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. the utility model provides a drill collar protection joint, includes body of rod (1), connector (12), its characterized in that: one end of the rod body (1) is provided with a columnar connector (12), and the annular side surface of the connector (12) is provided with the connector (12) which is in spiral fit connection with the drill collar (2);
The outer end face of the connector (12) is in contact with the drill collar (2), an annular second mounting groove (10) is formed in the outer end face of the connector (12), a plurality of springs are distributed on the bottom face of the second mounting groove (10), a protection cushion block (5) is arranged in the second mounting groove (10) in a sliding mode, the protection cushion block (5) is in contact with the tail end of the spring on the bottom face of the second mounting groove (10), and the outer surface of the protection cushion block (5) is in extrusion contact with the contact face of the drill collar (2);
The diameter of the rod body (1) is larger than that of the drill collar (2), and a chamfer (6) is arranged at the tail end of the rod body (1) provided with the connector (12).
2. A collar protection joint as defined in claim 1, wherein: the outer surface of one end of the rod body (1) provided with the connector (12) is provided with an external thread and is spirally connected with an annular protection block (3).
3. A collar protection joint as defined in claim 2, wherein: one end of the protective block (3) close to the connector (12) is provided with a sealing ring (4), and the inner ring surface of the sealing ring (4) is attached to the surface of the chamfer (6).
4. A collar protection joint as defined in claim 3, wherein: the sealing ring (4) is in an annular block shape, and an external thread which is spirally matched with the protection block (3) is arranged on the outer surface of the sealing ring (4).
5. A collar protection joint as defined in claim 1, wherein: the chamfer (6) is arranged at 30 degrees.
6. A collar protection joint as defined in claim 1, wherein: the inner wall circumference of second mounting groove (10) distributes along the spout that its degree of depth extends, the surface circumference evagination of protection cushion (5) has slider (11) with the spout one-to-one, and every the notch department of spout all is equipped with stopper (9) that restriction slider (11) break away from corresponding the spout, stopper (9) pass through bolted connection with connector (12).
7. a collar protection joint as defined in claim 1, wherein: the contact end face of the rod body (1) and the drill collar (2) is provided with an annular first mounting groove (8), an elastic gasket (7) matched with the first mounting groove in shape is arranged in the first mounting groove (8), and the outer surface of the elastic gasket (7) is in extrusion contact with the contact surface of the drill collar (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289266.0U CN209799887U (en) | 2019-03-07 | 2019-03-07 | Drill collar protection joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920289266.0U CN209799887U (en) | 2019-03-07 | 2019-03-07 | Drill collar protection joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209799887U true CN209799887U (en) | 2019-12-17 |
Family
ID=68823901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920289266.0U Active CN209799887U (en) | 2019-03-07 | 2019-03-07 | Drill collar protection joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209799887U (en) |
-
2019
- 2019-03-07 CN CN201920289266.0U patent/CN209799887U/en active Active
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