Multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and using method thereof

A simulated experimental device, high temperature and high pressure technology, applied in the direction of material inspection, soil material testing, etc., can solve the problems of failure to realize fluid migration and reaction, low experimental efficiency, etc.

Inactive Publication Date: 2019-04-12
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] On the whole, the existing technology has realized the simulation of the impact of various diagenetic fluids on rock diagenesis (such as acid diagenesis, alkaline diagenesis, dissolution, etc.) when they are in dynamic and static contact with rocks under high temperature and high pressure conditions, but there are still the following problems : ① Most of them are fluids with specific components (CO 2 、H 2 S aqueous solution) interacts with rocks. In fact, source rocks are in different stages of hydrocarbon evolution, and their pore fluids are formation water, oil, natural gas, and other products associated with oil and gas generation (such as CO 2 , organic acid, etc.); ②The experiments carried out are still in the reaction between the fluid and the rock surface, and the dissolution experiment of fluid migration and r...

Method used

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  • Multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and using method thereof
  • Multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and using method thereof
  • Multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0143] Example 1 Simulation experiment of conventional and unconventional natural gas generation in source rocks of Longmaxi Formation

[0144] 1 Sample preparation and preparation

[0145] Select core samples or outcrop samples of immature or low-mature source rock samples similar to the source rock depositional environment, organic matter type, and organic matter abundance in the study area, with Ro ≤ 0.6%, and sample weight ≥ 500g. And select some small pieces of immature and low-mature coal standard samples, Ro≤0.6%. Since the source rocks of the Longmaxi Formation in my country have generally entered a high-over-mature stage, and the types of organic matter are mainly type I-II1, the low-mature source rocks of the Devonian in Luquan, Yunnan were selected as Ro=0.48%, TOC=5.24% . In addition, uncooked Jurassic coal in Cuijiazhai, Hebei Province was selected as the coal standard sample, Ro=0.50%.

[0146] Considering the heterogeneity of the source rock, the sample was cr...

Embodiment 2

[0173] Example 2 Simulation experiment on the effect of hydrocarbon-generating fluids of Xujiahe Formation coal-measure source rocks in western Sichuan on feldspar-quartz sandstone reservoirs

[0174] 1 Sample preparation and preparation

[0175] The low-mature coal of the Xujiahe Formation in western Sichuan was selected as the parent rock providing coal-measure source rock = fluid, the sample number is PZ-9-1, the organic carbon content is 67.85%, and the Ro is 0.60%. The core consists of one piece of feldspar sandstone, with a porosity of 21.51% and a permeability of 60.1md. The interaction between hydrocarbon source fluid and reservoir is simulated when Ro=2.0% at the peak of oil generation. The coal PZ-9-1 sample was crushed to 20 mesh, mixed thoroughly, shrunk into several parts, and a small part was taken for each simulated temperature point to be pressed into a small cylindrical core to ensure the uniformity and representativeness of the sample. In addition, uncooked...

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Abstract

The invention relates to a multi-functional high temperature and high pressure simulation experimental device for hydrocarbon and rock generating and a using method thereof. The multi-functional hightemperature and high pressure simulation experimental device comprises a hydrocarbon source rock hydrocarbon generating reaction and fluid generating system, an auxiliary system, a hydrocarbon expulsion reaction and hydrocarbon source fluid transfer system, a hydrocarbon source fluid-rock interaction system and a product separating collecting system. A fluid in the hydrocarbon source rock hydrocarbon generating reaction and fluid generating system is released into the hydrocarbon expulsion reaction and hydrocarbon source fluid transfer system, and then the hydrocarbon source fluid is injectedinto reservoir rock samples in core clamping devices, a heating and pressurizing device is started to enable the fluid and rock to react at a setting temperature, pressure and time. According to the multi-functional high temperature and high pressure simulation experimental device for the hydrocarbon and rock generating, the simulating linkage co-control dynamic evolution processes of hydrocarbonsource rock hydrocarbon generating and hydrocarbon expulsion can be simulated, the generating capacity of conventional natural gas and shale gas in different evolution stages of hydrocarbon source rock can be determined, and the integrated geological process of hydrocarbon source fluid generating and the influence to reservoir rock generating can be further simulated; and the simulation of two geological processes of the hydrocarbon generating and the rock generating is met, the application fields of the experimental device are extended, and the efficiency of the experimental device is improved.

Description

technical field [0001] The invention relates to a physical simulation experiment device in the field of petroleum geology research, in particular to a device for simulating the formation and evolution of shale gas under high temperature and high pressure conditions by means of electronic machinery and automatic control technology, and the interaction simulation of hydrocarbon source fluid-reservoir rock Experimental apparatus and method of use. Background technique [0002] In petroleum geology, physical simulation experiments, as a special means, run through all links of basin formation, hydrocarbon formation, and accumulation, and play a very important role in deepening the process of oil and gas generation, expulsion, migration, and accumulation. [0003] In terms of hydrocarbon generation, the most widely used is the source rock thermal pressure hydrocarbon generation and expulsion simulation experimental device, the most fundamental theoretical basis of which is that th...

Claims

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Application Information

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IPC IPC(8): G01N33/24
CPCG01N33/24
Inventor 谭静强马中良
Owner CENT SOUTH UNIV
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