Multifunctional three-dimensional physical simulation experimental apparatus for thermal recovery by steam injection

Abstract

The invention relates to a multifunctional three-dimensional physical simulation experimental apparatus for thermal recovery by steam injection. The apparatus comprises a three-dimensional model body, a temperature control box, an injection and recovery device, an energy storage and buffer device and a data collector; the three-dimensional model body comprises an inner chamber and an outer chamber connected in a sleeving manner; an annulus is provided between the inner chamber and the outer chamber; the annulus is used as part of energy buffering so as to better accumulate and release energy during steam huff and puff; a perforation combination of the three-dimensional model body allows simulation of different well types, reservoir types and injection fluid combinations; the three-dimensional model body is moved into the temperature control box, simulation study on development manners and development mechanisms under different reservoir temperatures is achieved by changing the interior temperature of the temperature control box; the apparatus is suitable for the physical simulation of the heat injection development of heavy oil reservoirs with bottom water; experimental conditions are provided for the study on different injection fluids, well pattern types and development modes.

Description

technical field [0001] The invention relates to an indoor experimental device in the field of oil and gas field development, in particular to a multifunctional three-dimensional physical simulation experimental device for steam injection thermal recovery. Background technique [0002] The 3D physical simulation system can perform 3D physical simulation under reservoir conditions, study different types of reservoir development methods, seepage laws, production dynamics and other physical phenomena related to production technology, and provide experimental basis for numerical description and numerical simulation. Therefore, the three-dimensional physical simulation device is widely used in the field of oil and gas field development, and is an important research method to improve the efficiency of crude oil recovery. [0003] At present, there are many indoor 3D physical simulation devices for heavy oil, but through investigation, it is found that these models mainly have the f...

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Problems solved by technology

[0003] At present, there are many indoor 3D physical simulation devices for heavy oil, but through investigation, it is found that these models mainly have the following defects: (1) The model has a single function; the diversity of heavy oil reservoir types determines the Various development methods, the existing 3D physical simulation devices for thermal recovery of heavy oil generally have the problem of single type of simulated reservoir and single simulation development method; Simulator reports

(2) For the physical simulation of the steam huff and puff development process of heavy oil reservoirs, the existing 3D physical simulation device for thermal recovery of heavy oil cannot effectively simulate the storage and release of energy in the steam huff and puff process; because the steam huff and puff process of heavy oil reservoirs mainly depends on formation Elastic energy, which requires that the corresponding physical simulation device can effectively store the elastic energy increased by the steam injection process, so as to release it during the production process, so as to fully characterize the energy conversion and transfer of the steam huff and puff process; currently, some 3D physical simulation devices use Rubber and other elastic materials are used as energy buffering materials, but due to the shortcomings of temperature resistance and large energy loss, the experimental process cannot effectively characterize the energy buffering process.

(3) It is impossible to carry out physical simulation under higher temperature and variable temperature conditions; due to the limitation of energy buffer simulation materials and other factors, it is impossible to carry out simulation of higher reservoir temperature

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