CN218882213U - Well logging bridle structure - Google Patents
Well logging bridle structure Download PDFInfo
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- CN218882213U CN218882213U CN202223414597.3U CN202223414597U CN218882213U CN 218882213 U CN218882213 U CN 218882213U CN 202223414597 U CN202223414597 U CN 202223414597U CN 218882213 U CN218882213 U CN 218882213U
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- joint
- logging
- weak point
- shaft section
- headstall
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Abstract
The utility model discloses a well logging bridle structure, belonging to the technical field of oil well logging; the utility model is provided with an oil pipe, a joint and a connecting seat which are connected with the lower end of the oil pipe in sequence; a cone seat and a pressing cone are sequentially sleeved in the joint; a plurality of silicon injection holes are formed in the joint; the side wall of the lower end of the joint is provided with an inward-concave pulling force weak point shaft section; tensile force weak point shaft part has laid the tensile portion of breaking that is used for releasing pulling force, the utility model discloses when logging instrument meets the card, can guarantee to locate the fracture at the weak point, have the protection cable smoothly with the logging instrument separation, be favorable to reducing the beneficial effect of handling the accident degree of difficulty and operating cost.
Description
Technical Field
The utility model relates to an oil logging technical field especially relates to a log bridle structure.
Background
The bridle is an instrument for connecting a cable and a logging instrument and facilitating the transportation of the instrument, and generally has the weakness of fixed breaking force, when the bridle is stuck in the well descending process, the bridle is broken at the weakness by using mechanical tension provided by a testing winch, so that the cable is prevented from breaking down in the well, but when the well logging condition is complex, the mechanical tension provided by the testing winch can cause the cable to break instead of the weak point reserved at the logging bridle, so that the cable residual section is left at the top end of the bridle, the difficulty is increased for the subsequent accident treatment, the underground accident is complicated, and the operation cost is increased;
therefore, problem more than just, the utility model provides a when logging instrument meets the card, can guarantee to locate the fracture at the weak point when logging instrument, a well logging halter structure that the protection cable separates with logging instrument smoothly is necessary.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defect that prior art exists, provide a well logging bridle structure.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses a log well bridle structure, include:
the oil pipe, the joint and the connecting seat are sequentially connected to the lower end of the oil pipe;
a cone seat and a pressing cone are sequentially sleeved in the joint;
a plurality of silicon injection holes are formed in the joint;
the side wall of the lower end of the joint is provided with an inward-concave pulling force weak point shaft section;
and the shaft section of the tension weak point is provided with a snapping part for releasing tension.
Furthermore, the breaking part is arranged on at least one side of the outer wall of the shaft section of the pulling weak point, or the breaking part is formed on the outer wall of the shaft section of the pulling weak point in the circumferential direction.
Further, the snapping portion is a groove with a U-shaped or V-shaped or semicircular structure.
Further, the shaft section of the tension weak point is of a cylindrical structure, and the outer diameter of the cylinder is smaller than that of the joint.
Furthermore, at least one annular limiting groove is formed in the conical surface of the top end of the conical seat, and a sealing ring is installed in the limiting groove.
Furthermore, a positioning ring groove is formed in the outer surface of the conical seat, and the lower end of the conical seat is connected with the anti-falling seat;
furthermore, the outer surface of the compression cone is provided with a steel wire groove, the shape of the steel wire groove is spiral, and the middle of the compression cone is provided with a through hole.
Furthermore, the tail end of the oil pipe is connected with a male buckle at the top end of the connector through a female buckle.
Furthermore, the compression cone is a cone with a narrow upper part and a wide lower part, and a steel wire pile is further arranged at the lower end of the compression cone.
Furthermore, the two ends of the connecting seat are provided with male buckles, and the top end of the connecting seat is provided with a sealing pile.
In the technical scheme, the utility model provides a pair of well logging headstall structure, beneficial effect:
1. according to the joint designed by the utility model, the side wall of the lower end of the joint is provided with the inwards concave tension weak point shaft section, the outer diameter of the tension weak point shaft section is smaller than the outer diameter of the joint, so that the strength of the tension weak point shaft section is weaker than that of the joint, and the joint is broken from the tension weak point shaft section;
the utility model relates to a pulling force weak point shaft section, pulling force weak point shaft section have laid the portion of breaking, through set up the portion of breaking on pulling force weak point shaft section, when logging instrument meets the card, can follow the portion of breaking position fracture of pulling force weak point shaft section when connecting when receiving the pulling force, and the fracture is neat, and the protection cable separates with logging instrument smoothly, and convenient follow-up maintenance, maintenance work go on, reduce the handling accident degree of difficulty and operating cost.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic view of the overall structure of a logging bridle structure disclosed by the present invention;
fig. 2 is a schematic structural view of a logging bridle structure joint disclosed by the present invention;
fig. 3 is a partial enlarged view of a logging headstall structure joint as disclosed in the present invention;
fig. 4 is a partial enlarged view of another embodiment of a logging bridle structure joint disclosed in the present invention.
Description of reference numerals:
an oil pipe 1; a joint 2; a connecting seat 3; a conical seat 4; a compaction cone 5; an anti-drop seat 6; a seal ring 7; a screw 8;
injecting silicon holes 21; a tension weak point shaft section 22; a snap-off portion 23;
a sealing post 31;
a positioning ring groove 41; a limit groove 42;
a steel wire pile 51; the wire groove 52.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1;
the utility model relates to a well logging bridle structure, include: the oil pipe 1 is sequentially arranged on a joint 2 and a connecting seat 3 at the lower end of the oil pipe 1;
the oil pipe 1 is a coiled oil pipe in the prior art, and a female buckle is arranged at the tail end of the oil pipe 1 and is connected with a male buckle at the top end of the connector 2 through the female buckle;
a cone seat 4 and a pressing cone 5 are sequentially sleeved in the joint 2, a male buckle is arranged at the upper end of the joint 2, a female buckle is arranged at the lower end of the joint 2, a plurality of screw holes and a plurality of silicon injection holes 21 are formed in the middle of the joint 2, silicone grease can be injected into the joint 2 through the silicon injection holes 21, screws 8 are installed in the screw holes, and a tension weak point shaft section 22 which is inwards concave is arranged at a position, close to the lower end, of the joint 2;
wherein, the tension weak point shaft section 22 is provided with a snapping part 23 for releasing tension;
the preferred embodiment one;
at least one side of the outer wall of the pulling force weak point shaft section 22 is provided with a breaking part 23;
specifically, as shown in fig. 2 and 3, the two sides of the outer wall of the shaft section 22 with the weak tension point are uniformly provided with the snapping parts 23, and by the structure, the shaft section 22 with the weak tension point is provided with the snapping parts 23, when a logging instrument is stuck, the joint 2 can be broken from the snapping parts 23 under tension, so that the breaking position of the joint 2 is further guided, the cable is protected from being smoothly separated from the logging instrument, and subsequent maintenance and overhaul work is facilitated;
preferably, the snapping portion 23 is a groove with a U-shaped or V-shaped or semicircular structure. The connection strength of the snapping portion 23 is weaker than that of the pulling force weak point shaft section 22 by arranging the snapping portion 23 as a groove of a U-shaped or V-shaped or semicircular structure, so that the pulling force can be released from the bottom of the groove when being pulled;
the preferred embodiment two;
referring to fig. 4, the second embodiment is substantially the same as the first embodiment except that the embodiment is preferred that the outer wall of the shaft section 22 with the weak point of tension is circumferentially formed with a snapping portion 23. Compared with the first embodiment, the snapping portion 23 of the present embodiment can be processed into the groove with the U-shaped, V-shaped or semicircular structure by removing the material at one time, so that the process steps are reduced, the structure is simple, and the manufacture is convenient.
In a preferred embodiment, the conical seat 4 is of a stepped annular structure, at least one annular limiting groove 42 is formed in the conical surface of the top end of the conical seat 4, the number of the limiting grooves 42 in the embodiment is two, O-ring seals 7 are mounted in the two limiting grooves 42, the conical seat 4 is in sealing contact with the joint 2 through the O-ring seals 7, a positioning ring groove 41 is formed in the outer surface of the conical seat 4, and an anti-drop seat 6 is welded at the bottom end of the conical seat 4;
in a preferred embodiment, the compression cone 5 is a cone with a narrow top and a wide bottom, a steel wire groove 52 is formed in the outer surface of the compression cone 5, a through hole is formed in the middle of the compression cone 5, the steel wire groove 52 is spiral in shape, the number of the spiral in this embodiment is eight, steel wire piles 51 are further arranged at the lower end of the compression cone 5, and the number of the steel wire piles 51 is the same as that of the steel wire grooves 52.
The top end of the joint 2 is provided with an external thread for being in threaded connection with the oil pipe 1, an O-shaped sealing ring 7 is sleeved in a groove of the joint 2, and the sealing performance between the joint 2 and the oil pipe 1 is ensured through the sealing ring 7;
the upper and lower ends of the connecting seat 3 are provided with male buckles, wherein the male buckle at the top end of the connecting seat 3 is connected with the female buckle at the lower end of the connector 2, the male buckle at the bottom end of the connecting seat 3 is connected with a logging tool, the connecting seat 3 further comprises a sealing pile 31, and the sealing pile 31 is arranged on the upper end surface of the connecting seat 3.
In the technical scheme, when the logging bridle structure provided by the utility model is used, a cable is led out from an oil pipe 1 and passes through a joint 2, an inner armor steel wire and an outer armor steel wire of the cable are stripped, the outer armor steel wire is sequentially wound on a steel wire pile 51 in a compression cone 5 along the compression cone 5 and a steel wire groove 52, and the compression cone 5 is forcibly pounded; at the moment, cutting off redundant inner and outer armor steel wires, and reserving an inner armor steel wire as a ground wire to be connected with the sealing pile 31; connecting the cable core to a special sealing rubber sleeve for well logging, and sleeving the sealing rubber on the sealing pile 31; then the riveted cable fixing assembly is pulled back into the connector 2; the positioning ring groove 41 of the conical seat 4 is aligned with the positioning screw hole of the connector 2, and the cable fixing assembly is fixed in the connector 2 by the screw 8; after the well logging tool is manufactured, injecting silicone grease from the silicone injection hole 21, and installing a screw for sealing after the silicone grease is filled, so that normal well logging operation can be performed;
when the logging instrument is stuck, the joint 2 is pulled, and the pulling force acts on the position of the breaking part 23 of the pulling force weak point shaft section 22, so that the breaking part 23 is released and broken;
has the advantages that:
1. according to the joint designed by the utility model, the side wall of the lower end of the joint is provided with the inwards concave tension weak point shaft section, the outer diameter of the tension weak point shaft section is smaller than that of the joint, so that the strength of the tension weak point shaft section is weaker than that of the joint, and the joint is broken from the tension weak point shaft section;
the utility model relates to a pulling force weak point shaft section, pulling force weak point shaft section have laid the portion of breaking, through set up the portion of breaking on pulling force weak point shaft section, when logging instrument meets the card, can follow the portion of breaking position fracture of pulling force weak point shaft section when connecting when receiving the pulling force, and the fracture is neat, and the protection cable separates with logging instrument smoothly, and convenient follow-up maintenance, maintenance work go on, reduce the handling accident degree of difficulty and operating cost.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. A well logging bridle structure, comprising:
the oil pipe (1), a joint (2) and a connecting seat (3) which are sequentially connected to the lower end of the oil pipe (1);
a cone seat (4) and a pressing cone (5) are sequentially sleeved in the joint (2);
a plurality of silicon injection holes (21) are formed in the joint (2);
the side wall of the lower end of the joint (2) is provided with an inward concave pulling force weak point shaft section (22);
the pulling weak point shaft section (22) is provided with a breaking part (23) for releasing pulling force.
2. A logging headstall structure as claimed in claim 1, wherein;
the breaking part (23) is distributed on at least one side of the outer wall of the tension weak point shaft section (22), or the breaking part (23) is formed on the outer wall of the tension weak point shaft section (22) in the circumferential direction.
3. A logging headstall structure as claimed in claim 2, wherein;
the snapping portion (23) is a groove with a U-shaped or V-shaped or semicircular structure.
4. A logging headstall structure as claimed in claim 1, wherein;
the tensile force weak point shaft section (22) is of a cylindrical structure, and the outer diameter of the cylinder is smaller than that of the joint (2).
5. A logging headstall structure as claimed in claim 1, wherein;
at least one annular limiting groove (42) is formed in the conical surface of the top end of the conical seat (4), and a sealing ring (7) is installed in the limiting groove (42).
6. A logging headstall structure as claimed in claim 5, wherein;
the outer surface of the conical seat (4) is provided with a positioning ring groove (41), and the lower end of the conical seat (4) is connected with the anti-falling seat (6).
7. A logging headstall structure as claimed in any one of claims 1 to 6, wherein;
the outer surface of the compression cone (5) is provided with a steel wire groove (52), the shape of the steel wire groove (52) is spiral, and the middle of the compression cone (5) is provided with a through hole.
8. A logging headstall structure as claimed in any one of claims 1 to 6, wherein;
the tail end of the oil pipe (1) is connected with the male buckle at the top end of the joint (2) through the female buckle.
9. A logging headstall structure as claimed in any one of claims 1 to 6, wherein;
the pressing cone (5) is a cone body with a narrow upper part and a wide lower part, and a steel wire pile (51) is further arranged at the lower end of the pressing cone (5).
10. A logging halter structure according to any of claims 1-6, characterized in that;
the two ends of the connecting seat (3) are provided with male buckles, and the top end of the connecting seat (3) is provided with a sealing pile (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223414597.3U CN218882213U (en) | 2022-12-20 | 2022-12-20 | Well logging bridle structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223414597.3U CN218882213U (en) | 2022-12-20 | 2022-12-20 | Well logging bridle structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218882213U true CN218882213U (en) | 2023-04-18 |
Family
ID=85945394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223414597.3U Active CN218882213U (en) | 2022-12-20 | 2022-12-20 | Well logging bridle structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218882213U (en) |
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2022
- 2022-12-20 CN CN202223414597.3U patent/CN218882213U/en active Active
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