Shale oil and gas field detection device

Abstract

Ashale oil and gas field detection device comprises a gas collecting cylinder, a pressure balancing tank, a filtering device, a front filtering device, a mass spectrum analyzer, an industrial personalcomputer and a printer, according to the device, the waiting time of shale oil and gas collection decision can be greatly shortened, the gas composition can be automatically detected, and a detectionresult is displayed through display equipment; the device has multiple expression modes, can be operated without professional knowledge (only opening and closing buttons need to be controlled), integrates an automatic flushing function and automatic flushing of equipment after detection, greatly improves the feasibility of field operation, has a proper volume, can be configured on a moving vehicle, and adapts to shale oil and gas component detection under various conditions; gas-liquid separation, liquid phase volume and mass measurement, gas total amount measurement, online measurement of gas components and concentration and automatic flushing of equipment can be realized, the volume is moderate, and the field operability is extremely high; the measurement can be realized aiming at the gas under the gas pressure in a larger range, and the social significance and the practical value are higher.

Description

technical field [0001] This patent relates to the field of on-site detection of shale oil and gas, specifically a device for on-site detection of shale oil and gas. Background technique [0002] Existing test methods for shale gas content include desorption method, isothermal adsorption method, logging interpretation method, etc. Among them, the desorption method is a direct method for measuring shale gas content, and it is also the most commonly used method. It can reflect the gas-bearing characteristics of shale under the conditions of simulating the actual formation environment, so it is used as the basic method for measuring shale gas content. method, but this method takes a long time and has large errors; isothermal adsorption method and logging interpretation method are indirect methods for determining shale gas content. Isothermal adsorption is the reverse process of desorption. Through isothermal adsorption simulation, the adsorption characteristics and capacity of ...

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Problems solved by technology

Among them, the desorption method is a direct method for measuring shale gas content, and it is also the most commonly used method. It can reflect the gas-bearing characteristics of shale under the conditions of simulating the actual formation environment, so it is used as the basic method for measuring shale gas content. method, but this method takes a long time and has large errors; isothermal adsorption method and logging interpretation method are indirect methods for shale gas content determination

Isothermal adsorption is the reverse process of desorption. Through isothermal adsorption simulation, the adsorption characteristics and capacity of organic-rich shale can be studied, and the parameter data of adsorbed gas content can be obtained. Inappropriate, and the error is large; the logging interpretation method is a method to obtain the gas content of shale through the interpretation of logging data. This method first needs to establish the rock-electricity relationship, including rock density and organic matter content, radioactive material content and organic matter content, The relationship between organic matter content and gas content, etc., and then interpret the adsorbed gas content, free gas content and total gas content through logging data. However, the rock-electricity relationship of shale gas in my country has not yet been effectively established.

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