Three-dimensional experimental device for simulating lithologic reservoir forming

Abstract

A three-dimensional experimental device for simulating lithologic reservoir forming, which comprises an experiment body, a fluid injecting system, an extrusion system, a backpressure system, a thermotank and a data acquisition and control system, wherein the experiment body comprises a box body with a solid chamber and a piston fitted in the solid chamber; the box body is provided with a fluid filler port and a fluid discharge port; the fluid injecting system comprises a high pressure pump and first intermediate containers communicated with the high pressure pump; the first intermediate containers are communicated with the fluid filler port of the experiment body; the extrusion system pushes the piston to move downward in the box body; the backpressure system is communicated with the fluid discharge port of the experiment body; the thermotank is used for accommodating the experiment body and the first intermediate containers of the fluid injecting system; and the data acquisition and control system comprises a plurality of electrodes, a pressure sensor, a temperature measurer and an industrial computer. The three-dimensional experimental device has high degree of automation, can three-dimensionally acquire parameters in the process of oil-water migration and accumulation, instantly analyze the route of the oil migration and the position of the oil accumulation and really simulate the forming process of the lithologic reservoirs at higher temperature and higher pressure underground.

Description

technical field [0001] The invention relates to an experimental device in the field of petroleum geology, in particular to a three-dimensional experimental device capable of simulating the accumulation of lithological oil and gas reservoirs. Background technique [0002] In recent years, the situation of oil and gas exploration at home and abroad has become more and more serious, and the difficulty of exploration is increasing day by day. The exploration targets have shifted from the large and simple oil and gas reservoirs in the past to the small, hidden and complex oil and gas reservoirs. Lithologic oil and gas reservoirs are A major subtle oil and gas reservoir, there are great differences between lithologic reservoirs and conventional reservoirs in terms of accumulation conditions and accumulation processes. At present, most of the oil and gas migration and accumulation simulation experimental devices at home and abroad are established based on the study of conventional ...

AI Technical Summary

Problems solved by technology

At present, most of the oil and gas migration and accumulation simulation experimental devices at home and abroad are established based on the study of conventional oil and gas reservoirs, which cannot accurately simulate the migration and accumulation process of lithologic oil and gas reservoirs, but can simulate the three-dimensional accumulation process of lithologic oil and gas reservoirs under high temperature and high pressure conditions. The experimental device has not yet appeared

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