Straight and flat combined fireflood mining simulation system and method

Abstract

The invention discloses a vertical and horizontal combined fireflood mining simulation system and method. The system comprises a model body, a simulated gas injection vertical well, a simulated horizontal production well, a simulated production vertical well, an igniter, a monitoring unit and a control unit, wherein the model body is a cuboid, the simulated gas injection vertical well and the simulated production vertical well are respectively arranged on the two opposite side surfaces of the cuboid, the simulated horizontal production well is arranged at the bottom of the cuboid, and the simulated horizontal production well is perpendicular to the simulated gas injection vertical well and the simulated production vertical well in a different-plane mode; and the igniter is used for igniting in the model body, the monitoring unit is used for collecting temperature data of the model body, the control unit is used for adjusting the gas injection amount of the temperature data of the modelbody, the gas displacement of the simulated horizontal production well and the gas production amount of the simulated production vertical well according to the temperature data of the model body, anda traction live wire expands in the model body. According to the vertical and horizontal combined fireflood mining simulation system, the accurate control over the direction of the live wire is realized, the spread range of the live wire in an oil reservoir is expanded, and the experiment effect of fireflood collection simulation is increased.

Description

technical field [0001] The invention relates to the technical field of heavy oil exploitation, in particular to a simulation system and method for straight-flat combined fire-flooding exploitation. Background technique [0002] At present, the most effective method for the exploitation of heavy oil reservoirs at home and abroad is still the steam stimulation technology, but most blocks have entered the middle and late stages of development after high rounds of stimulation, and the production continues to decline. The fire flooding technology has the characteristics of a wide range of reservoir adaptation, sufficient material sources, high recovery (generally above 60%), and low cost of engineering facilities. It is an important successor technology for the development of heavy oil reservoirs. [0003] Conventional fire flooding well patterns are area well patterns and linear well patterns, that is, vertical wells are used for gas injection ignition and production. During th...

AI Technical Summary

Problems solved by technology

When THAI and COSH are laying out wells, the wellheads of the horizontal wells are located directly below the wellheads of the gas injection wells, and one horizontal well corresponds to one gas injection well. Due to the strong heterogeneity of the reservoir after huffing and puffing, it is difficult for THAI and COSH to stably control the fire line covering the reservoir when simulating fire flooding, which makes the effect of fire flooding simulation poor

[0004] For the above problems, no effective solution has been proposed

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