Experimental device and method for measuring influences of water injection and gas injection on petroleum reservoir exploitation

Abstract

The invention provides an experimental device for measuring influences of water injection and gas injection on petroleum reservoir exploitation. The experimental device comprises an injection system, an experiment implementation system and a detecting and processing system. The injection system is communicated with the experiment implementation system. The detecting and processing system is electrically connected with the experiment implementation system. According to the experimental device, one side face of an experiment box is arranged into a transparent side wall, and therefore workers can visually observe the dynamic state and the flow process of fluid and analyze the dynamic stage and the flow process, and workers can be assisted in more accurately understanding influences of different water injection and gas injection conditions on petroleum reservoir exploitation. The invention further provides an experimental method for measuring influences of water injection and gas injection on petroleum reservoir exploitation. By means of the experimental method, petroleum reservoir and displacement modes can be more accurately stimulated, and influences of displacement modes on petroleum reservoir exploitation are more accurately measured through the combination with the observed dynamic stage and the observed flow process of fluid.

Description

technical field [0001] The invention relates to the field of petroleum engineering reservoir development experiments, in particular to an experimental device and method for measuring the influence of water injection and gas injection on reservoir development. Background technique [0002] In the process of reservoir development, with the reduction of natural energy, it is necessary to replenish energy by water injection or gas injection to ensure stable production and development of the reservoir. However, for reservoirs with thick oil layers, during water injection or gas injection, due to the difference in density of oil, gas and water, under the action of gravity, the injected water will flow to the lower part of the reservoir, and cannot effectively sweep the top of the reservoir. and displacement, thereby affecting the water injection development of the reservoir. [0003] In order to fully understand the impact of different water and gas injection methods on the reser...

AI Technical Summary

Problems solved by technology

[0004] Among them, the existing physical model uses low-permeability natural sandstone outcrop and encapsulates it with resin. Although it meets the requirements of low permeability, due to the particularity of its physical model and the dispersion of measuring points, this technology still has at least a model. Closed, opaque, unable to intuitively analyze the flow form of the fluid and the shortcomings of the flow process

Images