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Linear physical simulation system for thermal recovery of heavy oil reservoirs

A heavy oil reservoir, physical simulation technology, applied in the fields of fluid production, earthwork drilling, measurement, etc., can solve the problems of inability to evaluate the feasibility of multi-factor steam flooding, low pressure, and few temperature measurement points, and achieve parameter measurement points. Wide distribution, strong theoretical layout, and the effect of improving oil recovery

Active Publication Date: 2018-01-05
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology

[0002] Most of the currently used linear physical simulation devices for thermal recovery of heavy oil adopt a single-tube structure, with low pressure and few temperature measurement points, and can only simulate single reservoir geological parameters such as permeability, oil saturation, porosity, crude oil viscosity, and oil layer heterogeneity However, the influence of factors on the effect of steam flooding cannot be evaluated for the feasibility of multi-factor steam flooding.
It can only simulate the influence of a single injection-production process on the thermal recovery effect, and has little guiding effect on on-site reservoir management, and cannot provide experimental basis for the implementation of thermal recovery wells
It is impossible to deeply explore the oil displacement mechanism of development methods such as water flooding followed by steam flooding, steam huff and puff followed by steam flooding, chemical steam flooding, strong water-sensitive heavy oil steam flooding, and chemical-assisted SAGD, which directly affects the application prospects of new production technologies on site

Method used

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  • Linear physical simulation system for thermal recovery of heavy oil reservoirs
  • Linear physical simulation system for thermal recovery of heavy oil reservoirs
  • Linear physical simulation system for thermal recovery of heavy oil reservoirs

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Embodiment Construction

[0028] In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments are listed below and described in detail in conjunction with the accompanying drawings.

[0029] like figure 1 as shown, figure 1 It is a structural diagram of a linear physical simulation system for thermal recovery of heavy oil reservoirs of the present invention. The linear physical simulation system for thermal recovery of heavy oil reservoirs includes four parts: injection system 2, model body 1, output system 4, and data acquisition and control system 3.

[0030] The injection system 2 is connected to the model main body 1, and injects steam, medicine and gas into the model main body 1 to ensure the smooth realization of different injection methods and different injection parameters. The injection system 2 consists of a steam injection unit 21, a medicine injection unit 22 and a gas injection unit. Unit 23 consists of three pa...

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Abstract

The invention provides a linear physical simulation system for thermal recovery of heavy oil reservoirs. The linear physical simulation system for thermal recovery of heavy oil reservoirs includes an injection system, a model body, a data acquisition and control system, and an output system. Inject steam, chemicals and gases. The data acquisition and control system performs parameter setting, data control and data acquisition of temperature and pressure measurement points inside the main body of the model. The output system completes well opening, well shut-in and constant pressure production. The simulation main body includes Tube, temperature sensor, pressure sensor and differential pressure sensor, the temperature sensor and pressure sensor respectively measure temperature and pressure data, and the differential pressure sensor is located at both ends of the model tube to measure the pressure difference between the two ends of the model tube.

Description

technical field [0001] The invention relates to an indoor test device for steam injection process of petroleum thermal recovery, in particular to a linear physical simulation system for thermal recovery of heavy oil reservoirs. Background technique [0002] Most of the currently used linear physical simulation devices for thermal recovery of heavy oil adopt a single-tube structure, with low pressure and few temperature measurement points, and can only simulate single reservoir geological parameters such as permeability, oil saturation, porosity, crude oil viscosity, and oil layer heterogeneity However, it is impossible to evaluate the feasibility of multi-factor steam flooding because of the influence of factors on the effect of steam flooding. It can only simulate the effect of a single injection-production process on the thermal recovery effect, and has little guiding effect on on-site reservoir management, and cannot provide experimental basis for the implementation of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B43/24E21B43/22E21B47/06E21B47/00
Inventor 蔡文斌王善堂白艳丽盖平原林吉生于田田刘冬青曹嫣镔罗荣章
Owner CHINA PETROLEUM & CHEM CORP
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