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Natural gas hydrate development simulation experimental device

A simulated experimental device and hydrate technology, which is applied in the direction of production fluid, wellbore/well components, earthwork drilling and production, etc., and can solve problems such as not using horizontal wells

Inactive Publication Date: 2017-12-26
OIL & GAS SURVEY CGS
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Problems solved by technology

At present, horizontal wells are hardly used in the three-dimensional hydrate production simulation experiments in domestic indoor laboratories.

Method used

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  • Natural gas hydrate development simulation experimental device
  • Natural gas hydrate development simulation experimental device

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Embodiment Construction

[0018] Such as figure 1 As shown, this kind of natural gas hydrate development simulation experiment device includes: injection system, drilling fluid wellhead annulus circulation system, model system, control system, data measurement system, data acquisition and processing system; the injection system injects liquid and gas separately Into the model system; the drilling fluid wellhead annulus circulation system simulates the circulating flow of the drilling fluid in the wellhead annulus; the model system includes a one-dimensional long-tube core holder and a three-dimensional model system. The seepage performance of the physical formation is tested. The three-dimensional model system optimizes the development parameters by controlling and changing the bottom hole pressure and heat injection temperature of the production well; the control system includes the back pressure control system and the temperature control system. The back pressure control system controls the outlet press...

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Abstract

A natural gas hydrate development simulation experiment device, which can simulate horizontal wells, control and change the production data such as bottomhole pressure and heat injection temperature of production wells, optimize development parameters, and can be used to study the temperature field in the process of hydrate synthesis and decomposition Spatial distribution, spatial distribution of saturation field, advancing speed of hydrate decomposition front, and hydrate decomposition mechanism. The natural gas hydrate development simulation experiment device includes: an injection system, a drilling fluid wellhead annular circulation system, a model system, a control system, a data measurement system, and a data acquisition and processing system.

Description

Technical field [0001] The invention relates to the technical field of natural gas hydrate research, in particular to a natural gas hydrate development simulation experiment device. Background technique [0002] Considerable reserves promote the continuous progress of development technology, and technological innovation will drive the efficient movement of reserves. [0003] Since the beginning of this century, the whole world has realized that natural gas hydrate is a clean energy source that can replace conventional fossil fuels. More than 200 hydrate deposits have been discovered around the world. With the current energy consumption trend, only 15% of the hydrate can be used globally for 200 years. However, its own stable temperature and pressure conditions determine the particularity of its mining method, and its impact on the environment during the mining process needs to be further evaluated. Therefore, with the exception of a few countries and regions that have conducted s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/00E21B49/00
CPCE21B43/00E21B49/00
Inventor 陆程祝有海庞守吉白名岗张帅肖睿
Owner OIL & GAS SURVEY CGS
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