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On-line measuring device for measuring generating amount and discharging amount of shale gas

A technology for measuring device and release amount, which is applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as inaccurate measurement results, and achieve the effects of improving accuracy, accurate and reliable measurement results, and reducing workload.

Inactive Publication Date: 2013-09-25
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

This method is an indirect method, but because the rock has lost temperature and pressure when it is lifted out of the wellhead, the amount of gas released is not equal to the amount of gas that the rock can release when it is pressed underground and subjected to a certain temperature, and its measurement results are inaccurate. At present, there is no real simulation of shale hydrocarbon generation and releasable devices at home and abroad

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  • On-line measuring device for measuring generating amount and discharging amount of shale gas
  • On-line measuring device for measuring generating amount and discharging amount of shale gas

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Embodiment Construction

[0027] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments, so as to understand the essence of the present invention more clearly and intuitively.

[0028] refer to figure 1 As shown, the present invention provides an online measurement device for shale gas production and release, which includes a heating tube, a shale packaging tube 4, a vacuum system, an inert gas supply system, a gas collection system, and a gas analysis gas chromatograph 12 And a pressure sensor 14, wherein the heating tube includes a tube body 1 and a plunger 2 capped at one end of the tube body 1, the tube body 1 has a rotary needle valve 3 that can rotate into the inner cavity of the heating tube, The rotary needle valve 3 is used to rotate into the heating tube to pierce the shale packaging tube 4 inside the heating tube after the shale sample generates hydrocarbons, so that the generated hydrocarbons a...

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Abstract

The invention relates to an on-line measuring device for measuring generating amount and discharging amount of shale gas. The device comprises a heating tube; a rotary needle valve, which can screw into the inner cavity body of the heating tube and is arranged on the heating tube; a shale packaging tube, which is arranged in the inner cavity body of the heating tube; a vacuuming system, which is connected with the inner cavity body of the heating tube; an inert gas providing system, which is connected with the inner cavity body of the heating gas, a gas collecting system, which is connected to the inner cavity body of the heating tube; a gas analysis gas chromatography, which is connected to the gas collecting system; and a pressure sensor used for detecting the air pressure of the inner cavity body of the heating tube. The online measuring device has the advantages that processes of shale hydrocarbon generating and shale hydrocarbon discharging are truly simulated under geological conditions, and the measure results are precise and reliable.

Description

technical field [0001] The invention relates to the technical field of shale gas detection, in particular to an online measuring device for shale gas generation and release. Background technique [0002] Shale gas is one of the hotspots in oil and gas geochemistry research. Shale will generate gas under certain temperature and pressure conditions, and part of the generated gas will be released into the gas-producing rock, and part of it will remain in the gas-generating parent rock. Under certain temperature and pressure conditions, the amount of shale gas generated, discharged, and stored in the parent rock is an important content of shale gas research. The current method for studying the release of shale gas at home and abroad is: take the drilled core out of the wellhead, quickly put it into a device that can collect gas, and draw a curve by observing the relationship between the amount of released gas and time , using this curve to deduce the maximum amount of gas t...

Claims

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Application Information

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IPC IPC(8): G01N7/16G01N30/02
Inventor 刘金钟
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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