Transformation device of natural gas hydrate resonance reservoir

A technology for hydrate and natural gas, applied in vibration generating devices, production fluids, wellbore/well components, etc., can solve problems such as low efficiency, and achieve the effects of improving permeability, stabilizing transformation, and improving production rate

Pending Publication Date: 2020-08-07
CHINA HUANENG GRP CO LTD +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a reforming device for natural gas hydrate resonance

Method used

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  • Transformation device of natural gas hydrate resonance reservoir
  • Transformation device of natural gas hydrate resonance reservoir

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0019] In order to improve the transformation effect of seabed natural gas hydrate, and at the same time promote the production volume and production rate of natural gas hydrate, the present invention mainly assembles a natural gas hydrate resonance reservoir transformation device on the basis of obtaining the natural frequency of natural gas hydrate reservoir, and Adjust its resonance frequency to be consistent with the gas hydrate reservoir; secondly, use a high-strength cable to put the gas hydrate resonance reservoir transformation device into the gas hydrate reservoir along the inner wall of the tubing, and ensure that the upper edge of the device is sealed with the inner wall of the tubing Then, start the ground control system, detonate the explosive wire in the device through the high-strength cable, generate high-decibel ultrasonic waves with the same ...

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Abstract

The invention provides a transformation device of a natural gas hydrate resonance reservoir. The transformation device comprises a ground control system, a core resonance body, a gas production pipe and a casing pipe, one end of the casing pipe is arranged on the sea level, and the other end of the casing pipe sequentially penetrates through the sea level, an upper rock stratum and a natural gas hydrate reservoir and is arranged in a lower rock stratum; the core resonance body is arranged in the casing pipe, the lower part of the core resonance body is arranged in the natural gas hydrate reservoir, and the upper part of the core resonance body is arranged in the upper rock stratum at the upper part of the natural gas hydrate reservoir; a resonant cavity is formed in the core resonance body, and an explosion wire is placed in the resonant cavity and connected with the ground control system; and the gas production pipe is also arranged in the casing pipe, one end of the gas production pipe is arranged in the upper rock stratum at the upper part of the natural gas hydrate reservoir, and the other end of the gas production pipe is arranged on the sea level. By means of the transformation device, the permeability of the seabed natural gas hydrate reservoir can be effectively improved, and meanwhile the seabed reservoir can be transformed gently and stably.

Description

technical field [0001] The invention relates to the technical field of natural gas hydrate reservoir transformation, in particular to a natural gas hydrate resonance reservoir transformation device. Background technique [0002] Natural gas hydrate is natural gas (CH 4 ) and water under the condition of high pressure and low temperature, it is an ice-cage-like solid compound, which is mainly distributed in tundra environments such as polar regions and plateaus, and underwater formation environments such as deep sea and deep water. Because its combustion has less impact on the environment, it is a new type of efficient and clean energy, and it has huge resource potential to replace traditional fuels. Therefore, it has been favored by various countries and major energy companies in recent years. Although the depressurization method, thermal stimulation method, inhibitor method, CO 2 There are a series of natural gas hydrate production methods such as replacement method and s...

Claims

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Application Information

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IPC IPC(8): E21B43/01E21B43/38E21B28/00
CPCE21B43/01E21B43/38E21B28/00E21B41/0099
Inventor 赵文韬荆铁亚王金意张健张国祥
Owner CHINA HUANENG GRP CO LTD
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