CN210948613U - Disposable connection structure for perforating gun - Google Patents

Abstract

The utility model discloses a disposable connection structure for a perforating gun, which comprises a disposable connection head (1) and an electrical connector (2). The disposable connection head (1) is provided with mounting holes A penetrating both ends. , the electrical connector (2) is assembled in the mounting hole of the disposable connector (1), the disposable connector (1) is used to connect two perforating guns, and the electrical connector (2) is used to connect two perforating guns the conductive parts. The utility model has the characteristics of simple structure, simplified connection mode between guns, and no need for opening and wiring operation.

Description

Disposable connection structure for perforating gun

technical field

The utility model relates to the technical field of connection of perforating guns, in particular to a disposable connection structure for perforating guns.

Background technique

The perforating gun is a combination of equipment used for perforating oil and gas wells and its accessories. Multiple perforating guns are connected in series and then go down into the oil well to explode the formation. The concentrated energy phenomenon of the explosion produces a concentrated jet, which shoots through the formation.

The perforating gun usually includes an outer barrel, a magazine tube and a connecting head. The connecting head of the existing perforating gun has a complex structure and high manufacturing cost, resulting in high maintenance costs. Cumbersome operations such as assembling the wires inside the connector separately are time-consuming and labor-intensive.

Utility model content

The purpose of the utility model is to overcome the shortcomings of the prior art, and to provide a one-time connection structure for perforating guns that has a simple structure, simplifies the connection between the gun and the gun, and does not require opening and wiring operations.

The purpose of the present utility model is achieved through the following technical solutions:

A disposable connection structure for a perforating gun, which includes a disposable connection head and an electrical connector, the disposable connection head is provided with a mounting hole A penetrating both ends, and the electrical connector is assembled in the installation hole of the disposable connection head, The disposable connector is used to connect two perforating guns, and the electrical connector is used to connect the conductive parts of the two perforating guns.

Further, the mounting hole A of the disposable connector is a stepped hole, which includes a small hole and a large hole, the electrical connector includes an insulating shaft, the insulating shaft is assembled in the small hole, and the insulating shaft is provided with installation through both ends. Hole B, a step A, a step B and a spring groove are arranged in the installation hole B, a conductive cylinder is assembled in the installation hole B and is limited by the steps, and a conductive pin A with a cross-shaped rotating body structure is arranged in the installation hole B, which conducts electricity. The needle A is limited by the step and one end extends out of the end face of the insulating shaft, and a spring A is arranged between the conductive needle A and the conductive cylinder.

Further, one end of the conductive cylinder away from the conductive pin A is provided with a counterbore, and a conductive pin B with a cross-shaped gyratory structure is arranged in the counterbore. A spring B is arranged between the needles B, and an insulating limiting sleeve is sleeved on the conductive needle B. The insulating limiting sleeve is pressed against the end face of the conductive cylinder and is fixed by a snap ring installed in the snap ring groove.

Further, a limit step is arranged in the small hole, a corresponding limit step is arranged on the insulating shaft, a fixing piece is threaded in the large hole, and the fixing piece is sleeved on the insulating limit sleeve and pressed against the insulating shaft. .

Further, at least two wrench holes symmetrical about the axis are provided on the circumference of the end face of the fixing piece.

Further, threads are provided on the outer walls of both ends of the disposable connector.

Further, an annular boss is arranged in the middle of the outer wall of the disposable connector, and a plurality of grooves are arranged on the annular boss.

Further, the outer wall of the disposable connector is provided with a plurality of sealing grooves A and installed with a sealing ring A, the outer wall of the insulating shaft is provided with a plurality of sealing grooves B and installed with a sealing ring B, and the outer wall of the conductive cylinder is provided with a sealing ring B. A plurality of sealing grooves C are installed with sealing rings C.

The utility model has the following advantages: the disposable connector provided by the utility model has a simple structure, does not require disassembly and secondary maintenance after use, and can be directly discarded after use, which greatly saves operation and maintenance costs; So that the user only needs to directly connect the perforating gun and the joint, and no longer need cumbersome operations such as opening and wiring.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the left side view of Fig. 1;

Figure 4 is a schematic structural diagram of a disposable connector;

Figure 5 is a schematic diagram of the structure of the insulating shaft;

Figure 6 is a schematic diagram of the structure of the conductive cylinder;

In the picture: 1-disposable connector, 101-small hole, 102-large hole, 103-limiting step, 104-ring boss, 105-sealing groove A, 2-electrical connector, 3-insulation shaft, 301 -step A, 302-step B, 303-circlip groove, 304-seal groove B, 4-conductive cylinder, 401-counter hole, 402-seal groove C, 5-conductive pin A, 6-spring A, 7- Conductive pin B, 8-spring B, 9-insulation limit sleeve, 10-fixture.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

As shown in Figures 1-6, the disposable connection structure for perforating guns includes a disposable connector 1 and an electrical connector 2. The disposable connector 1 is provided with mounting holes A penetrating both ends for electrical connection. The connector 2 is assembled in the installation hole of the disposable connector 1, the disposable connector 1 is used for connecting two perforating guns, and the electrical connector 2 is used for connecting the conductive parts of the two perforating guns.

The mounting hole A of the disposable connector 1 is a stepped hole, which includes a small hole 101 and a large hole 102. The electrical connector 2 includes an insulating shaft 3, and the insulating shaft 3 is assembled in the small hole 101, and the insulating shaft 3 is provided. There is an installation hole B that runs through both ends. The installation hole B is provided with a step A301, a step B302 and a spring groove 303. The installation hole B is equipped with a conductive cylinder 4 and is limited by the step 302, and a cross-shaped rotation is arranged in the installation hole B. The conductive pin A5 of the body structure, the conductive pin A5 is limited by the step 301 and one end extends out of the end face of the insulating shaft 3 , and a spring A6 is arranged between the conductive pin A5 and the conductive cylinder 4 .

One end of the conductive cylinder 4 away from the conductive pin A5 is provided with a counterbore 401, and a conductive pin B7 with a cross-shaped rotator structure is arranged in the counterbore 401. A spring B8 is arranged between the conductive pin B7 and the conductive pin B7 is covered with an insulating limiting sleeve 9 .

The small hole 101 is provided with a limit step 103, the insulating shaft 3 is provided with a corresponding limit step, the large hole 102 is threadedly connected with a fixing piece 10, and the fixing piece 10 is sleeved on the insulating limit sleeve 9 and against the insulating shaft 3.

At least two wrench holes 1001 symmetrical with respect to the axis are provided on the circumference of the end face of the fixing member 10 , and the fixing member 10 can be tightened through the wrench holes 1001 with an angle grinder wrench during installation.

The outer walls of the two ends of the disposable connector 1 are provided with threads, the middle of the outer wall of the disposable connector 1 is provided with an annular boss 104, and the annular boss 104 is provided with a plurality of grooves. When the thread of the perforating gun is tightened, the groove can be tapped to tighten the connection between the disposable connector 1 and the perforating gun.

The outer wall of the disposable connector 1 is provided with a plurality of sealing grooves A105 and a sealing ring A is installed, the outer wall of the insulating shaft 3 is provided with a plurality of sealing grooves B304 and a sealing ring B is installed, and the outer wall of the conductive cylinder 4 is provided with a sealing ring B. A plurality of sealing grooves C402 are installed with sealing rings C.

Claims (7)

1. A disposable connection structure for a perforating gun, characterized in that it comprises a disposable connector (1) and an electrical connector (2), and the disposable connector (1) is provided with mounting holes penetrating both ends A. The electrical connector (2) is assembled in the mounting hole of the disposable connector (1), the disposable connector (1) is used to connect two perforating guns, and the electrical connector (2) is used to connect two perforations The conductive parts of the gun. 2. The disposable connection structure for a perforating gun according to claim 1, characterized in that: the installation hole A of the disposable connection head (1) is a stepped hole, which comprises a small hole (101) and a large hole (101). A hole (102), the electrical connector (2) includes an insulating shaft (3), the insulating shaft (3) is assembled in the small hole (101), and the insulating shaft (3) is provided with a mounting hole B penetrating both ends, the mounting hole A step A (301), a step B (302) and a spring groove (303) are arranged in the B. A conductive cylinder (4) is assembled in the installation hole B and is limited by the step B (302). The installation hole B is provided with a The conductive pin A (5) of the cross-shaped rotating body structure is limited by the step A (301) and one end protrudes out of the end face of the insulating shaft (3). The conductive pin A (5) is connected to the conductive cylinder (4). A spring A (6) is arranged between ); One end of the conductive cylinder (4) away from the conductive pin A (5) is provided with a counterbore (401), and a conductive pin B (7) with a cross-shaped rotating body structure is arranged in the counterbore (401), and the conductive pin B (7) ) protrudes out of the end face of the insulating shaft (3), a spring B (8) is arranged between the bottom of the counterbore (401) and the conductive pin B (7), and an insulating limit sleeve is sleeved on the conductive pin B (7). (9), the insulating limiting sleeve (9) abuts the end face of the conductive cylinder (4) and is fixed by the circlip installed in the circlip groove (303). 3. The disposable connection structure for a perforating gun according to claim 2, characterized in that: the small hole (101) is provided with a limiting step (103), and the insulating shaft (3) is provided with a corresponding In the limit step, the large hole (102) is connected with a fixing piece (10) through a thread, and the fixing piece (10) is sleeved on the insulating limiting sleeve (9) and abuts against the insulating shaft (3). 4. The disposable connection structure for a perforating gun according to claim 3, characterized in that: at least two wrench holes (1001) symmetrical about the axis are provided on the circumference of the end face of the fixing member (10). 5 . The disposable connection structure for a perforating gun according to claim 1 , wherein the outer walls of both ends of the disposable connection head ( 1 ) are provided with threads. 6 . 6. The disposable connection structure for a perforating gun according to claim 1, characterized in that: an annular boss (104) is provided in the middle of the outer wall of the disposable connector (1), and the annular boss (104) There are multiple grooves on it. 7. The disposable connection structure for a perforating gun according to claim 2, characterized in that: the outer wall of the disposable connection head (1) is provided with a plurality of sealing grooves A (105) and a sealing ring A is installed , the outer wall of the insulating shaft (3) is provided with a plurality of sealing grooves B (304) and a sealing ring B is installed, and the outer wall of the conductive cylinder (4) is provided with a plurality of sealing grooves C (402) and is installed with a sealing ring C .

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