Experimental Study on Production Characteristics of Bottom Water Fractured-Vuggy Reservoir

Author:

Cheng Hong1ORCID,Jiang Lin1,Li Chenggang1

Affiliation:

1. Sinopec Northwest Oilfield, Xinjiang Urumqi 830011, China

Abstract

To assess the high-pressure production characteristics of double-vug reservoirs with bottom water in the Tahe Oilfield, in this study, a high-pressure physical simulation experiment apparatus is built for double-vug reservoirs with bottom water. The high-pressure production characteristics of “vug-fracture-vug” reservoirs under different bottom water characteristics are studied experimentally, and fracture-vug relationship and oil recovery rates are explored. According to the findings, the oil recovery rate significantly affects the development effect of double-vug reservoirs with bottom water, and bottom water provides sufficient energy for reservoir development. Furthermore, considering the possible occurrence of water invasions, the production rate control must receive close attention in the development process to avoid strong water channeling. Constant-pressure bottom water has sufficient energy and can quickly replenish vug energy. Therefore, the recovery percentage and bottom water invasion and retention volume of fractured-vuggy reservoirs with constant-pressure bottom water are higher than those of fractured-vuggy reservoirs with constant-volume bottom water. Under the appropriate control of production factors, the presence of bottom water can noticeably improve the development effect of fractured-vuggy reservoirs.

Funder

Science and Technology Department Project of Sinopec-China Petroleum

Publisher

Hindawi Limited

Subject

General Earth and Planetary Sciences

Reference29 articles.

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3. Experimental Study on the Relationship between Carbonate Reservoir Quality Index and Dynamic Parameters of Chemical Solutions for Oil Recovery Practice

4. Performance Evaluation of Cyclic Pressure Pulsing in a Depleted, Naturally Fractured Reservoir with Stripper-Well Production

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