Reusable device for cable grading perforation process

Abstract

The utility model is applicable to the technical field of oil and gas well construction, and provides a reusable device for a cable grading perforation process, which comprises a device body, and a module bin assembly, a conductive assembly I, a conductive assembly II and a body cap are arranged in the device body; the module bin assembly is in threaded connection with the device body; the first conductive assembly is connected with the module bin assembly. The conductive component II is connected with the module bin component; and the body cover cap is in threaded connection with the device body and is used for reducing the impact of detonation waves generated after the lower perforator is detonated in perforation operation on the module bin. According to the utility model, the direct impact of detonation waves generated during the operation of the perforator on the module bin assembly is effectively weakened, so that the purpose of protecting the selective launching module is achieved, and the repeated utilization of the selective launching module can be realized. In addition, wider surface contact is realized through the crown spring, so that the contact area is obviously increased, the stability and the reliability of connection are ensured, and the success rate of perforation construction is further improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil and gas well construction, and in particular relates to a reusable device used in a cable graded perforation process. Background Art

[0002] As an important energy source and industrial raw material, petroleum has been mined for over a century, resulting in the development of numerous extraction processes and construction methods. However, conventional extraction methods have proven ineffective in some specialized strata. Against this backdrop, cable-based graded perforation, with its advantages such as high reliability and accurate positioning, has become a common technique used in oil and gas well construction. A large number of selective firing modules are required during cable-based graded perforation. However, in current construction methods, these modules are single-use, resulting in high costs and a significant waste of resources. Furthermore, existing technologies suffer from the following shortcomings: First, the selective firing modules lack effective protection during the perforation process, making them susceptible to damage and limiting their reusability. Second, conventional selective firing module connections utilize compression springs for contact connection, which has a limited contact area, leading to unreliable contact and impacting the success rate of perforation operations. To overcome these shortcomings, the present invention proposes a reusable device for cable-based graded perforation. Utility Model Content

[0003] The purpose of the utility model is to provide a reusable device for a cable graded perforating process, aiming to solve the problems raised in the above background technology.

[0004] The embodiment of the present invention is implemented as follows: a reusable device for a cable graded perforating process, comprising a device body, wherein the device body is provided with a module compartment assembly, a conductive assembly 1, a conductive assembly 2, and a body cap;

[0005] The module bin assembly is threadedly connected to the device body; the conductive assembly 1 is connected to the module bin assembly; the conductive assembly 2 is connected to the module bin assembly; the body cap is threadedly connected to the device body, and is used to reduce the impact of the detonation wave generated after the lower perforator is detonated during the perforating operation on the module bin.

[0006] Furthermore, the module compartment assembly includes a conductive rod 1, a module compartment, a bidirectional sealing plug, a conductive rod 2, a selection module, a selection module fixing rod, two double-sealed pins, a contact member, a contact insulating member 1, a conductive member 1, a contact insulating member 2, a contact 1, and a contact 2;

[0007] The module compartment is connected to the middle part of the device body by means of threads, and a stepped hole is provided inside the module compartment for placing a bidirectional sealing plug;

[0008] The bidirectional sealing plug is connected to the conductive rod 1 and the conductive rod 2 by threads;

[0009] The hair selection module is wound around the hair selection module fixing rod, the white foot wire of the hair selection module is fixed to the second conductive rod by winding, and the red and green foot wires of the hair selection module are respectively connected to the two double-sealed pins by soldering;

[0010] The fixing rod of the hair selection module is connected to the contact member via a thread;

[0011] The double-sealed pin is connected to the contact piece via a thread;

[0012] The contact member is fixed to the module compartment by screws;

[0013] The contact insulating member 1 is provided with a groove in which the extended portion of the double-sealed pin is placed; the contact insulating member 1 is provided with a through hole in which it is connected to the contact member via a screw;

[0014] The conductive member 1 is placed on an end of the contact insulating member 1 away from the contact member, and is connected to the contact insulating member 1 by a screw; the conductive member 1 is provided with a thread inside, and is connected to the contact 1 by the thread;

[0015] The second contact insulating member is provided with a stepped hole for accommodating the second contact;

[0016] The first contact is provided with a stepped hole for accommodating the second contact insulating member.

[0017] Furthermore, crown springs are disposed inside the first conductive member and the second contact insulating member.

[0018] Furthermore, the conductive component 1 includes an insulating sheet, a conductive shell, a single-core flange socket and a conductive nut 1;

[0019] A retaining spring groove is provided in the conductive housing, a retaining spring is built into the retaining spring groove, and the insulating sheet is placed on the single-core flange socket and fixed by the retaining spring;

[0020] The conductive housing is provided with a housing having the shape of a single-core flange socket for accommodating the single-core flange socket, and the single-core flange socket is connected to the conductive rod through a contact surface structure;

[0021] The conductive shell is provided with a thread on the outside for connecting a conductive nut.

[0022] Furthermore, the conductive component 2 includes a conductive shell 1, an insulating member 1, a conductive member 2, an insulating member 2, a conductive member 3, an insulating base and a conductive nut 2;

[0023] The conductive shell 1 is provided with a groove inside for placing the insulating base; the conductive shell 1 is provided with a thread outside, which is connected to the conductive nut 2 through the thread;

[0024] The insulating member 1 is provided with a through hole on the outside and connected to the conductive member 2 via a top screw. The insulating member 1 is provided with a threaded hole on the outside and connected to the conductive housing 1 via a top screw.

[0025] The second conductive member has a crown spring built in, and the second conductive member is connected to the first contact point to achieve contact surface contact;

[0026] The second insulating member is provided with a threaded hole on the outside and connected to the second conductive member via a top screw; the second insulating member is provided with a shape characteristic of the third conductive member for accommodating the third conductive member;

[0027] The conductive part three has a crown spring built in, and the conductive part three realizes contact surface contact by plugging with the contact point two; the conductive part three is placed on the insulating base, and the shape of the conductive part three is complementary to the shape of the insulating base in terms of concave and convex.

[0028] Compared with the prior art, the beneficial effects of the present invention are:

[0029] This reusable device for cable-graded perforating processes effectively mitigates the direct impact of the detonation wave generated by the perforator on the module compartment assembly by placing the selection module inside the module compartment assembly and using the body cap as a protective barrier. This effectively protects the selection module and enables reuse of the selection module. Furthermore, the device improves on the traditional connection method of the selection module by achieving wider surface contact through the crown spring. This not only significantly increases the contact area, but also ensures the stability and reliability of the connection, further improving the success rate of perforating operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The figure is a schematic diagram of the structure of the device body in the reusable device used in the cable graded perforating process.

[0031] Figure 2 Schematic diagram of the structure of the module chamber assembly in a reusable device for cable graded perforating process.

[0032] Figure 3 Schematic diagram of the structure of the conductive component 1 in the reusable device for the cable graded perforating process.

[0033] Figure 4 Schematic diagram of the structure of the conductive component 2 in the reusable device for the cable graded perforating process.

[0034] Figure 5 Schematic diagram of the structure of the body cap in the reusable device for the cable graded perforating process.

[0035] Figure 6 Schematic diagram of the structure of a reusable device for wireline graded perforating process.

[0036] In the figure: 1-device body, 2-conductive rod 1, 3-module compartment, 4-bidirectional sealing plug, 5-conductive rod 2, 6-selection module, 7-selection module fixing rod, 8-double sealing pin, 9-contact piece, 10-contact insulation piece 1, 11-conductive piece 1, 12-contact insulation piece 2, 13-contact 1, 14-contact 2, 15-insulating sheet, 16-conductive shell, 17-single-core flange socket, 18-conductive nut 1, 19-conductive shell 1, 20-insulating piece 1, 21-conductive piece 2, 22-insulating piece 2, 23-conductive piece 3, 24-insulating base, 25-conductive nut, 26-body cover cap. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0038] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0039] like Figures 1-6 As shown, one embodiment of the present invention provides a reusable device for cable graded perforating process, comprising a device body 1, wherein the device body 1 is provided with a module compartment assembly, a conductive assembly 1, a conductive assembly 2 and a body cap 26;

[0040] The module bin assembly is screwed into the device body 1 through one side of the internal thread; the conductive component 1 is connected to the module bin assembly via a contact structure; the conductive component 2 is connected to the module bin assembly via a contact structure; the body cap 26 is threadedly connected to the device body 1 to reduce the impact of the detonation wave generated after the lower perforator is detonated during the perforating operation on the module bin.

[0041] like Figure 2 As shown in FIG. 1 , as a preferred embodiment of the present invention, the module compartment assembly includes a conductive rod 1 2, a module compartment 3, a bidirectional sealing plug 4, a conductive rod 2 5, a selection module 6, a selection module fixing rod 7, two double sealing pins 8, a contact member 9, a contact insulating member 1 10, a conductive member 1 11, a contact insulating member 2 12, a contact 1 13, and a contact 2 14;

[0042] The module compartment 3 is threadedly connected to the middle part of the device body 1, and a stepped hole is provided inside the module compartment 3 for placing a bidirectional sealing plug 4;

[0043] The bidirectional sealing plug 4 is connected to the conductive rod 1 2 and the conductive rod 2 5 by threads; the end of the bidirectional sealing plug 4 connected to the conductive rod 2 5 is placed into the stepped hole of the module compartment 3 from the outside to the inside;

[0044] The hair selection module 6 is fixed on the hair selection module fixing rod 7 by wrapping it with high-temperature adhesive tape, and the white foot wire of the hair selection module 6 is fixed to the conductive rod 2 5 by wrapping, and the red and green foot wires of the hair selection module 6 are respectively connected to the two double-sealed pins 8 by soldering.

[0045] The hair selection module fixing rod 7 is connected to the contact member 9 through a thread;

[0046] The double-sealed pin 8 is connected to the contact member 9 via a thread;

[0047] The contact member 9 is fixed to the module compartment 3 by screws; the contact member 9 is provided with a thread for connecting to the selection module fixing rod 7; the end face of the contact member 9 is provided with a thread for connecting to the bidirectional sealing pin 8;

[0048] The contact insulating member 10 is provided with a groove in which the extended portion of the double sealing pin 8 can be placed, thereby insulating the bidirectional sealing pin 8; the contact insulating member 10 is provided with a through hole in which it is connected to the contact member 9 by screws;

[0049] The conductive member 11 (with a built-in crown spring) is placed at the end of the contact insulating member 10 away from the contact member 9 and is connected to the contact insulating member 10 via a screw; the conductive member 11 is provided with a thread and is connected to the contact 13 via the thread;

[0050] The contact insulator 2 12 (with built-in crown spring) is provided with a stepped hole for accommodating the contact 2 14;

[0051] The first contact 13 is provided with a stepped hole for accommodating the second contact insulating member 12 .

[0052] In the embodiment of the present invention, the upward conduction signal of the selection module 6 is transmitted through the conductive rod 2, and the detonation signal of the selection module 6 is transmitted through the double-sealed pin 8.

[0053] like Figure 3 and Figure 6 As shown in FIG. 1 , as a preferred embodiment of the present invention, the conductive component 1 includes an insulating sheet 15 , a conductive shell 16 , a single-core flange socket 17 and a conductive nut 18 ;

[0054] The conductive shell 16 is provided with a retaining spring groove, in which a retaining spring is built. The insulating sheet 15 is placed on the single-core flange socket 17 and fixed by the retaining spring.

[0055] The conductive housing 16 is provided with a housing having a single-core flange socket 17, which is used to accommodate the single-core flange socket 17. The single-core flange socket 17 is connected to the conductive rod 2 through a contact surface structure.

[0056] The conductive shell 16 is provided with threads on the outside for connecting a conductive nut 18 .

[0057] In the embodiment of the present utility model, the single-core blue socket 17 of the conductive component 1 is connected to the conductive rod 2 of the module compartment component through a contact structure to realize the upward conduction of the module.

[0058] like Figure 4 and Figure 6 As shown, as a preferred embodiment of the present invention, the conductive component 2 includes a conductive shell 19, a Φ24 insulating member 1 20, a Φ24 conductive member 21, a Φ8 insulating member 22, a Φ8 conductive member 3 23, an insulating base 24 and a conductive nut 25;

[0059] The conductive housing 19 has a groove inside for placing the insulating base 24; the conductive housing 19 has a thread outside for connecting with the conductive nut 25 through the thread;

[0060] The insulating member 1 20 has a through hole on the outside, which is connected to the conductive member 2 21 through a top screw. The insulating member 1 20 has a threaded hole on the outside, which is connected to the conductive shell 19 through a top screw.

[0061] The second conductive member 21 has a built-in crown spring, and the second conductive member 21 is connected to the first contact 13 to achieve contact surface contact;

[0062] The second insulating member 22 is provided with a threaded hole on the outside and connected to the second conductive member 21 via a top screw; the second insulating member 22 is provided with a conductive member 23 having the shape characteristics thereof, for accommodating the conductive member 23; specifically, the second insulating member 22 is provided with a circular groove, and the conductive member 23 is fixed to the circular groove inside the second insulating member 22 by screws, and the cold-pressed end wire is fixed together before the screws are fixed;

[0063] The conductive part three 23 has a crown spring built in, and the conductive part three 23 achieves contact surface contact by plugging with the contact two 14; the shape of the conductive part three 23 is complementary to the shape of the insulating base 24 in concave and convex manner, and the conductive part three 23 is placed on the insulating base 24 to achieve fixation; the conductive part three 23 is provided with threads for screwing the cold-pressed end wire.

[0064] In this embodiment, the conductive member 21 is plugged into the contact 1 13 to achieve surface contact, and the conductive member 3 23 is plugged into the contact 2 14 to achieve surface contact, thereby reliably transmitting the detonation signal of the selective firing module.

[0065] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A reusable device for a cable graded perforating process, characterized in that: The device comprises a main body, wherein a module compartment assembly, a first conductive assembly, a second conductive assembly and a main body cap are arranged in the main body; The module bin assembly is threadedly connected to the device body; the conductive assembly 1 is connected to the module bin assembly; the conductive assembly 2 is connected to the module bin assembly; the body cap is threadedly connected to the device body, and is used to reduce the impact of the detonation wave generated after the lower perforator is detonated during the perforating operation on the module bin.

2. The reusable device for cable staged perforation process according to claim 1, characterized in that: The module compartment assembly includes a conductive rod 1, a module compartment, a bidirectional sealing plug, a conductive rod 2, a selection module, a selection module fixing rod, two double-sealed pins, a contact piece, a contact insulating piece 1, a conductive piece 1, a contact insulating piece 2, a contact 1 and a contact 2; The module compartment is connected to the middle part of the device body by means of threads, and a stepped hole is provided inside the module compartment for placing a bidirectional sealing plug; The bidirectional sealing plug is connected to the conductive rod 1 and the conductive rod 2 by threads; The hair selection module is wound around the hair selection module fixing rod, the white foot wire of the hair selection module is fixed to the second conductive rod by winding, and the red and green foot wires of the hair selection module are respectively connected to the two double-sealed pins by soldering; The fixing rod of the hair selection module is connected to the contact member via a thread; The double-sealed pin is connected to the contact piece via a thread; The contact member is fixed to the module compartment by screws; The contact insulating member 1 is provided with a groove in which the extended portion of the double-sealed pin is placed; the contact insulating member 1 is provided with a through hole in which it is connected to the contact member via a screw; The conductive member 1 is placed on an end of the contact insulating member 1 away from the contact member, and is connected to the contact insulating member 1 by a screw; the conductive member 1 is provided with a thread inside, and is connected to the contact 1 by the thread; The second contact insulating member is provided with a stepped hole for accommodating the second contact; The first contact is provided with a stepped hole for accommodating the second contact insulating member.

3. The reusable device for cable staged perforation process according to claim 2, characterized in that: Crown springs are arranged inside the first conductive member and the second contact insulating member.

4. The reusable device for cable staged perforating process according to claim 2, characterized in that: The conductive component includes an insulating sheet, a conductive shell, a single-core flange socket and a conductive nut; A retaining spring groove is provided in the conductive housing, a retaining spring is built into the retaining spring groove, and the insulating sheet is placed on the single-core flange socket and fixed by the retaining spring; The conductive housing is provided with a housing having the shape of a single-core flange socket for accommodating the single-core flange socket, and the single-core flange socket is connected to the conductive rod through a contact surface structure; The conductive shell is provided with a thread on the outside for connecting a conductive nut.

5. The reusable device for cable staged perforating process according to claim 2, characterized in that: The conductive component 2 includes a conductive shell 1, an insulating part 1, a conductive part 2, an insulating part 2, a conductive part 3, an insulating base and a conductive nut 2; The conductive shell 1 is provided with a groove inside for placing the insulating base; the conductive shell 1 is provided with a thread outside, which is connected to the conductive nut 2 through the thread; The insulating member 1 is provided with a through hole on the outside and connected to the conductive member 2 via a top screw. The insulating member 1 is provided with a threaded hole on the outside and connected to the conductive housing 1 via a top screw. The second conductive member has a crown spring built in, and the second conductive member is connected to the first contact point to achieve contact surface contact; The second insulating member is provided with a threaded hole on the outside and connected to the second conductive member via a top screw; the second insulating member is provided with a shape characteristic of the third conductive member for accommodating the third conductive member; The conductive part three has a crown spring built in, and the conductive part three realizes contact surface contact by plugging with the contact point two; the conductive part three is placed on the insulating base, and the shape of the conductive part three is complementary to the shape of the insulating base in terms of concave and convex.

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