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Device for simulating natural gas hydrate row type horizontal well miscible-phase displacement mining

A technology of natural gas and hydrate, which is applied in the direction of production fluid, earthwork drilling, wellbore/well components, etc., and can solve the problem that natural gas hydrate storage cannot simulate horizontal well displacement operations, etc.

Inactive Publication Date: 2017-12-26
DALIAN DONGYOU RUIJIA PETROLEUM TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, simply using the power system to heat gas hydrate storage cannot simulate the displacement operation of horizontal wells in actual production.

Method used

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  • Device for simulating natural gas hydrate row type horizontal well miscible-phase displacement mining
  • Device for simulating natural gas hydrate row type horizontal well miscible-phase displacement mining
  • Device for simulating natural gas hydrate row type horizontal well miscible-phase displacement mining

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0057] Such as figure 1 As shown, it is a structural schematic diagram of a device for simulating natural gas hydrate row-type horizontal well miscible flooding in the present invention, including a gas supply system, a liquid supply system, a simulation system, a fracturing system, an injection system, a production system and a monitoring system; The gas supply system is connected to the simulation system, the liquid supply system is connected t...

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Abstract

The invention discloses a device for simulating natural gas hydrate row type horizontal well miscible-phase displacement mining, and relates to the field of natural gas hydrate development. The device comprises an air supply system, a liquid supply system, a simulation system, a fracturing system, an injection system, a production system and a monitoring system, the device adopts a sand filling box to serve as a main body of the simulating system, a row type horizontal well pattern can be simulated, and by means of the air supply system and the liquid supply system, natural gas and water are supplied into the simulation system to form a natural gas hydrate; fracturing operation is implemented through the fracturing system for simulating natural gas hydrate storage, carbon dioxide and a chemical agent are injected through the injection system to simulate miscible-phase displacement mining, associated gas and water are collected through the production system, and the whole experimental process is monitored through the monitoring system. Accordingly, an experimental device adopts a three-dimensional mode, the miscible-phase displacement mined natural gas hydrate is simulated, and a certain guiding effect on natural gas hydrate miscible-phase displacement mining mechanism study is achieved.

Description

technical field [0001] The invention discloses a device for simulating the exploitation of natural gas hydrate by row-type horizontal well miscible flooding, which relates to the field of natural gas hydrate development, and in particular is an indoor experimental device for simulating the exploitation of natural gas hydrate by row-type horizontal well miscible drive. Background technique [0002] Natural gas hydrate (NGH for short) is a non-stoichiometric clathrate compound formed by natural gas and water at a certain low temperature and high pressure, also known as "combustible ice". 1m 3 Natural gas hydrate can contain 164m 3 methane gas and 0.8m 3 of water. "Combustible ice" is a secondary product of natural gas, and its application range is roughly the same as that of natural gas. It is a typical oil substitute. "Combustible ice" is extremely flammable. Under the same conditions, the energy generated by the combustion of "combustible ice" is dozens of times higher t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B49/00E21B47/002E21B47/06E21B47/07E21B43/26
CPCE21B43/26E21B47/002E21B47/06E21B47/07E21B49/00
Inventor 袁鹏飞张晓丽
Owner DALIAN DONGYOU RUIJIA PETROLEUM TECH CO LTD
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