Stereoscopic development three-dimensional experimental device of heavy oil reservoir

Abstract

The invention relates to a stereoscopic development three-dimensional experimental device of a heavy oil reservoir. The stereoscopic development three-dimensional experimental device of the heavy oil reservoir comprises a three-dimensional rock core model, a constant temperature box, a steam generator, a temperature and pressure monitoring system, constant flux pumps and an intermediate container. Vertical well connectors are arranged on an upper cover plate of the three-dimensional rock core model, and horizontal well connectors are arranged on the side face of the three-dimensional rock core model. A mixture of high-alumina cement and quartz sand is filled into an inner cavity of the three-dimensional rock core model, and the three-dimensional rock core model is further respectively provided with temperature monitoring interfaces, pressure monitoring interfaces and saturated oil holes. The first constant flux pump is connected with the steam generator, the steam generator is connected to an inlet in the lower end of a first piston container, and an outlet in the upper end of the steam generator is connected with one horizontal well connector of the three-dimensional rock core model. An outlet in the upper portion of a second piston container is connected with the intermediate container, and the intermediate container is connected to the saturated oil holes in the upper cover plate of the three-dimensional rock core model. The stereoscopic development three-dimensional experimental device of the heavy oil reservoir integrates indoor experiments of three well pattern structures of SAGD, driving and draining combination and gravity drainage assisted steam driving, the experimental well pattern structures can be switched, and convenience is provided for indoor physical simulation of stereoscopic development of heavy oil.

Description

1. Technical field: [0001] The invention relates to an indoor simulated heavy oil thermal recovery experimental device for the study of the three-dimensional development mechanism of the heavy oil reservoir, and specifically relates to a three-dimensional experimental device for the three-dimensional development of the heavy oil reservoir. 2. Background technology: [0002] The three-dimensional reservoir development is a development model established based on the three-dimensional migration and driving laws of fluids, while considering the influence of horizontal and vertical forces on fluid seepage. At present, SAGD, composite flooding and gravity drainage-assisted steam flooding are the most typical in the three-dimensional development practice of heavy oil reservoirs, and have achieved remarkable development results. However, there are few studies on the mechanism of the three-dimensional development of heavy oil, and there are no reports on the research by experimental ...

AI Technical Summary

Problems solved by technology

However, there are few studies on the mechanism of the three-dimensional development of heavy oil, and there are no reports on the research by experimental means

The main reasons are: (1) It is difficult to design a simple and accurate temperature measurement system that reflects the temperature of the reservoir, the front edge of the steam chamber, and the temperature of the steam chamber; (2) The physical simulation core in the three-dimensional development room of the heavy oil reservoir must have the characteristics of high temperature and high pressure resistance

Images