Horizontal well pumping perforating surface-fixed orientation-point clustering perforator detonation transfer conversion device

A conversion device and technology for horizontal wells, which are used in natural gas extraction and oil fields, can solve problems such as collapse, bottom water coning, and low oil production efficiency, and achieve the effects of reducing fracture pressure and improving oil production efficiency.

Inactive Publication Date: 2018-09-11
吉林市双林射孔器材有限责任公司
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Problems solved by technology

[0002] Horizontal well pumping perforation is to achieve effective communication between the wellbore and the formation, using the cable hydraulic transmission method, according to the pumping design procedure, to transport the perforation pipe string and bridge plug to the target layer, and complete the clustered perforation and bridge plug setting A combined device, in the prior art, the existing ho

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  • Horizontal well pumping perforating surface-fixed orientation-point clustering perforator detonation transfer conversion device

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[0037] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0038] At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships.

[0039] The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use.

[0040] The technology and equipment known to those of ordinary skill in the relevant fields may not be discussed in detail, but where appropriate, the technology and equipment should be regarded as part of the specification.

[0...

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Abstract

The invention discloses a horizontal well pumping perforating surface-fixed orientation-point clustering perforator detonation transfer conversion device. The device comprises a detonation transfer conversion joint, a fixing cap for fixing a detonation transfer tube, a first conductive sheet and a second conductive sheet for electric conduction, a spring for pressing the second conductive sheet, insulating sleeves, insulating pads, a gun body, a bearing, a positioning ring, perforating bullet clusters, the detonation transfer tube, a detonating cord, a control key, locking pieces, a bearing cap, a bearing sleeve, an upper through wire and a lower through wire. According to the device, in order to achieve detonation transfer between gun strings and transmission of electric signals under anyangle rotation state of gun carriers, wires for transmitting the electric signals and detonating cords installed on the gun carriers in the perforating gun strings rotate along with the gun carriers,an intermediate detonation transfer conversion device is installed between the two gun strings, moving wires respectively fixed on the gun carriers in the two gun strings can be rotated freely in guns along with the gun carriers, the electrical signals can be reliably transmitted, the detonation transfer tube is used for docking, and the detonation transfer can be effectively implemented.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploitation, in particular to a detonation transfer conversion device for pumped perforation in horizontal wells, fixed plane, fixed orientation, clustered perforator. Background technique [0002] Horizontal well pumping perforation is to achieve effective communication between the wellbore and the formation, using the cable hydraulic transmission method, according to the pumping design procedure, to transport the perforation pipe string and bridge plug to the target layer, and complete the clustered perforation and bridge plug setting A combined device, in the prior art, the existing horizontal well pumped perforation is not suitable for unconventional horizontal oil and gas wells where the wellbore trajectory deviates from the production layer, and the horizontal well wellbore trajectory deviates from the target position. The fracturing problem is difficult to solve, which ma...

Claims

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Application Information

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IPC IPC(8): E21B43/11E21B43/119E21B43/263
CPCE21B43/11E21B43/119E21B43/263
Inventor 徐峰曹宇欣陈建华张端英盛勇李柏森罗秋辉
Owner 吉林市双林射孔器材有限责任公司
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