Two-dimensional microcosmic visual thickened oil replacement simulation experiment system and use method thereof

A displacement simulation and experimental system technology, which is applied in earthwork drilling, production fluid, wellbore/well components, etc., can solve problems such as microscopic saturation difficulties, heavy oil viscosity, and few researches on heavy oil, and achieve The effect of high work efficiency and low experiment cost

Active Publication Date: 2015-01-07
PETROCHINA CO LTD
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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
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  • Two-dimensional microcosmic visual thickened oil replacement simulation experiment system and use method thereof
  • Two-dimensional microcosmic visual thickened oil replacement simulation experiment system and use method thereof
  • Two-dimensional microcosmic visual thickened oil replacement simulation experiment system and use method thereof

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Embodiment 1

[0086] Aiming at the middle and late stages of the development of medium-deep Type II heavy oil reservoirs, it is not suitable to transfer to steam flooding and SAGD technology development according to the current technical level, and research and develop practical and effective multiple thermal fluid development replacement technologies for heavy oil reservoirs. One of the research ideas is to reveal the displacement mechanism of the multi-component thermal fluid development and replacement technology in heavy oil reservoirs. Therefore, for Jin 45 type II heavy oil reservoirs, the heavy oil two-dimensional microscopic visual displacement simulation experiment system for heavy oil provided by the present invention is respectively Research on the development technology mechanism of hot water flooding, urea flooding, and urea foam flooding was carried out, and two-dimensional microscopic visual displacement experiments of 80°C hot water flooding, 150°C urea flooding, and 150°C ure...

Embodiment 2

[0102] The problems existing in the water injection development process of Lukeqin Oilfield in the Turpan-Hami Basin are: due to the high viscosity of the formation crude oil, the large water-oil mobility ratio, and the serious heterogeneity, when the formation of this reservoir is developed by water injection, the injected water along the The high-permeability layer advances unevenly, resulting in low sweep of the middle and low-permeability layers, and poor oil displacement effect, which seriously affects the development effect of water flooding. For this reason, the research on the deep profile control technology of air foam flooding was carried out. For the Turpan-Hami heavy oil reservoir, the mechanism research of the air foam + oil displacement agent + viscosity reducer flooding development technology was carried out by using the two-dimensional microscopic visualization physical simulation experiment method , using crude oil from the Tuha heavy oil reservoir to carry out...

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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 for oilfield development, in particular to a two-dimensional microscopic visual 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 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. Research on oil is scarce. 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 reservoi...

Claims

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Application Information

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IPC IPC(8): E21B43/24
CPCE21B43/16
Inventor 张运军沈德煌王红庄蒋有伟李秀峦张世民黄玖高李军辉李杰朱建文董志国
Owner PETROCHINA CO LTD
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