A two-dimensional microscopic visual displacement simulation experiment system for heavy oil and its application method

Abstract

The invention provides a two-dimensional microcosmic visual thickened oil replacement simulation experiment system and a use method thereof. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system comprises a microcosmic simulation experiment device, a visual data acquisition device, a support device, a multivariate thermal fluid injection device, a confining pressure tracking device and a metering device, wherein the microcosmic simulation experiment device comprises a heating jacket, a clamper and a plate glass microcosmic model; the visual data acquisition device comprises a microscopic shooting device and a computer; the multivariate thermal fluid injection device comprises an ISCO injection pump, an oven and a replacement medium intermediate container, a water intermediate container, a thickened oil intermediate container, a first heat traced pipeline and a bypass pipeline; the confining pressure tracking device comprises an annular pressure tracking pump, an annular pressure tracking pump pressure meter, a vacuum pump and a first vacuum valve. The two-dimensional microcosmic visual thickened oil replacement simulation experiment system give full consideration to characteristics of the thickened oil reservoirs, provides convenience for research on a thickened oil replacement mechanism through microcosmic experiments, has the advantages of low experiment cost, high work efficiency and the like, and can meet with demands on development and research of the thickened oil reservoirs.

Description

technical field [0001] The invention relates to the technical field of laboratory experiments in oilfield development, in particular to a two-dimensional microscopic visualization displacement simulation experiment system for heavy oil and a method for using the same. Background technique [0002] Understanding and mastering the mechanism of oil and gas development is very important for compiling efficient oilfield development plans. Many scholars at home and abroad have carried out research on the mechanism of action of various oil recovery methods in oil reservoirs, but most of them are for thin oil and heavy oil. There is very little research on oils. Mainly due to the relatively high viscosity of heavy oil, it is very difficult to saturate microscopically. A small number of researchers also use the oil diluted by the underground oil-water viscosity ratio to conduct experiments, so they cannot truly understand the flooding of heavy oil reservoirs. alternative mechanism. ...

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Problems solved by technology

[0002] Understanding and mastering the mechanism of oil and gas development is very important for writing efficient development plans for oilfields. Many scholars at home and abroad have conducted research on the mechanism of various oil recovery methods in reservoirs, but most of them are aimed at thin oil and thick oil. Little research has been done on oil

The main reason is that due to the relatively high viscosity of heavy oil, it is very difficult to microscopically saturate it. A small number of research personnel also use oil diluted according to the viscosity ratio of underground oil and water to carry out experiments, so it is impossible to truly understand the displacement of heavy oil reservoirs. Alternative mechanism

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