Hydrodynamic Reservoir Physical Simulation Experimental Device and Experimental Method

Abstract

The invention relates to a physical simulation experiment device and method for a hydrodynamic petroleum reservoir. The physical simulation experiment device comprises a hydrodynamic petroleum migration and accumulation simulation box, wherein the hydrodynamic petroleum migration and accumulation simulation box is connected with a water supply pool through a water injection system and a water output system to form a closed loop; the hydrodynamic petroleum migration and accumulation simulation box comprises a box body, wherein the box body is internally provided with a stratum body simulator and two water storage tanks located at two sides of the stratum body simulator; sand-proof infiltration screens are arranged at two sides of the stratum body simulator and the sides, connected with the stratum body simulator, of the water storage tanks; and a petroleum injection hole is formed in the lower end of the stratum body simulator, a water injection hole connected with the water injection system is formed in the lower end of the first water storage tank, a water outlet connected with the water output system is formed in the lower end of the second water storage tank, and a petroleum injection hole, a water injection hole and a water outlet are respectively formed in corresponding positions on the box body. By using the physical simulation experiment device for the hydrodynamic petroleum reservoir, the aims of simulating the influencing process of a hydrodynamic force to a petroleum reservoir, analyzing the formation mechanism and control factor of the hydrodynamic petroleum reservoir and deepening the comprehension on formation factors of the hydrodynamic oil reservoir are achieved, and the basis is provided for the petroleum exploration of petroleum-containing basins.

Description

technical field [0001] The invention relates to an experimental device and an experimental method for oil migration and accumulation, in particular to a hydrodynamic reservoir physical simulation device and an experimental method for simulating the influence of hydrodynamics on the reservoir. Background technique [0002] The formation and evolution of groundwater dynamics in sedimentary basins are closely related to oil migration and accumulation, while hydrodynamics are dominated by fluid dynamics and their driving mechanisms. In recent years, many scholars have studied the relationship between fluid dynamics, fluid driving mechanism and oil accumulation from different perspectives. Chen Heli et al. (1988, 1990, 1993) used mudstone compaction to study fluid pressure, and believed that oil is generally distributed in parts with low residual pressure. Kang Yongshang et al. (1998) proposed the concept of hydrodynamic system for oil and gas accumulation, and proposed the divi...

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Problems solved by technology

[0008] Due to the complex formation process of hydrodynamic reservoirs, the current understanding of hydrodynamic reservoirs is limited to the static knowledge obtained from geological anatomy and analysis of discovered reservoirs. However, under the action of hydrodynamic forces, the process of hydrocarbon accumulation is a dynamic one. The process and flow rate of hydrodynamic force play an important role in controlling hydrodynamic reservoirs, so the existing technologies cannot deeply understand the formation process, mechanism and main controlling factors of hydrodynamic reservoirs

[0009] The existing physical simulations of oil and gas migration and accumulation mechanisms are basically carried out in a large sandbox. Different geological models are constructed in the sandbox to simulate or verify the laws of oil and gas migration and accumulation in a certain area. Experimental equipment and experimental methods for the formation process and mechanism of hydrodynamic oil and gas reservoirs

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