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Shale gas content detecting method

A technology of shale gas content and measurement method, which is applied in the field of shale gas content measurement and mineral rock adsorption gas content testing device field, which can solve the problems of large errors

Inactive Publication Date: 2015-01-07
HENGTAISHANGHE ENERGY TECH BEIJING
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0008] The invention provides a shale gas content measurement method to solve the problem in the prior art that when the gas content of the sample is low, the error of the direct measuring cylinder measurement method or flow sensor measurement is large, so as to realize high-precision measurement of the gas content

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Embodiment Construction

[0057] 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, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0058] Such as figure 1 As shown, a new type of shale gas content tester, which includes a device for constant temperature desorption of samples, a real-time test system for pressure and temperature during sample desorption, a system for measuring the volume of sample desorption space, and a computer acquisition and processing system 5. The sample constant temperature desorption device is connected to the real-time test system of pressure and temperature during th...

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Abstract

The invention relates to a novel shale gas content tester and a shale gas content detecting method. The novel shale gas content tester comprises a device, a real-time testing system, a system and a computer collecting and processing system, wherein the device is used for desorbing a sample at a constant temperature; the real-time testing system is used for testing pressure and temperature of the sample in the desorbing process; the system is used for detecting the volume of a sample desorbing space; through a pipeline, the device for desorbing the sample at the constant temperature is connected with the real-time testing system for testing the pressure and the temperature of the sample in the desorbing process; through a pipeline, the real-time testing system for testing the pressure and the temperature of the sample in the desorbing process is connected with the system for detecting the volume of the sample desorbing space; and the real-time testing system for testing the pressure and the temperature of the sample in the desorbing process and the system for detecting the volume of the sample desorbing space are connected with the computer collecting and processing system through data wires. According to the invention, the sample is placed in the constant temperature desorbing and detecting system to detect desorption, the problem that the measurement of desorbed gas is affected because the gas of a free space can be changed with temperature and pressure conditions of a testing environment is solved.

Description

technical field [0001] The invention relates to the field of measurement technology, and belongs to a test device for the content of adsorbed gas in mineral rocks such as shale gas and coalbed methane. A shale gas content determination method for its gas content. Background technique [0002] Adsorbed natural gas generally exists in various mineral rocks. For shale and coal seams, the proportion of adsorbed gas in rocks can reach 20%-80%, and the proportion of adsorbed gas in coal seams is even higher, reaching more than 90%. The gas content in mineral rocks is directly related to the development prospects of shale gas and coalbed methane. To effectively evaluate the resources of shale gas and coalbed methane reservoirs, gas content is an essential parameter, which is related to reservoir pressure and Combined use of adsorption isotherms, gas production capacity can be predicted to determine the distribution of wells and production methods. [0003] The Chinese patent "Coa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N7/16
Inventor 王军芳吴辉赵斌杰
Owner HENGTAISHANGHE ENERGY TECH BEIJING
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