Hydrocarbon source rock formation pore heat-pressing hydrocarbon-generation simulator and use method thereof

Abstract

The invention discloses a hydrocarbon source rock formation pore heat-pressing hydrocarbon-generation simulator and a use method thereof, pertaining to an experimental apparatus for simulating the process of heat-pressing hydrocarbon-generation for hydrocarbon source rocks in the field of geological research on petroleum and natural gas. The simulator is composed of such five parts as a high temperature high pressure reaction unit, a two-way hydraulic automation control unit 301, an automatic hydrocarbon expulsion product collecting and fluid supplementing unit, a data acquisition and automatic control unit, peripheral auxiliary equipment and apparatus casing. The invention can carry out heating and pressurizing closed and open or controllable hydrocarbon generation and expulsion simulated experiments with the reservation of original pores of a hydrocarbon source rock sample 518, within the limited pore spaces and in simultaneous consideration of lithostatic pressure, formation fluid pressure and confining pressure similar to the geological conditions, thereby improving a hydrocarbon source rock hydrocarbon generation and expulsion simulated experimental apparatus so as to provide an effective means for researches on the development of a hydrocarbon generation mechanism, oil-gas migration, oil and gas production quantity in basins as well as oil and gas resource prediction, and thus having wide application prospects.

Description

technical field [0001] The invention relates to an experimental device in the field of petroleum geological research, in particular to an experimental instrument and equipment for simulating the hydrocarbon generation process of source rock evolution under high-temperature and high-pressure conditions by means of electronic machinery and automatic control technology and its use method. Background technique [0002] Since the 1980s, based on B.P Tissot’s kerogen thermal degradation theory and the time-temperature compensation principle of organic matter thermal evolution, the source rock thermal pressure simulation experiment method has been used to study the mechanism of oil and gas generation and organic matter evolution. One of the most effective methods of process etc. Judging from the current literature, representative controllable source rock thermal pressure hydrocarbon generation simulation devices include the organic texturing evolution simulation experimental device...

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Problems solved by technology

[0008] ② Since most pyrolysis simulation experiments are carried out under the conditions of water content, low pressure, relatively large space and high temperature, whether the experimental results can represent the actual evolution process of underground source rocks needs further study.

[0009] ③ Few studies have been carried out on the influence of the primary hydrocarbon expulsion method and hydrocarbon generation space (pore size) on the hydrocarbon generation potential of source rocks

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