Journal of Southwest Petroleum University(Science & Technology Edition) ›› 2026, Vol. 48 ›› Issue (2): 137-148.DOI: 10.11885/j.issn.1674-5086.2024.09.15.31

• OIL AND GAS ENGINEERING • Previous Articles     Next Articles

A New Method for Grading and Evaluating the Development Effectiveness of Fault Controlled Fracture-cavity Reservoir

YUAN Xiaoman, LU Zhongyuan, GUO Qiang, WANG Huailong, ZHAO Xinyue   

  1. Hade Oil and Gas Management Area, Tarim Oilfield, PetroChina, Korla, Xinjiang 841000, China
  • Received:2024-09-15 Published:2026-04-30

Abstract: The ultra deep fault controlled fracture vuggy carbonate reservoir has strong heterogeneity and obvious spatial dispersion distribution characteristics. Different from clastic rock reservoirs, the geological characteristics of reservoirs between wells and the development effects in different development stages are different. There is no standardized method to scientifically evaluate the development effects of this type of reservoir in different development stages. Aiming at the typical fault zone of Fuman Oilfield, an overall technical approach to grading and evaluating the development effectiveness of single well (well group units) in the natural energy development stage and water injection development stage has been proposed. Five key principles for determining the development effectiveness evaluation index system have been clarified, and four key indicators for the natural energy development stage and nine key indicators for the water injection development stage of this type of reservoir have been selected. A comprehensive evaluation index system for different development stages was established using analysis hierarchy process. This research method and technical process can provide standardized and scientific research ideas in the process of building development effectiveness grading evaluation index systems for different development stages in other types of oil reservoirs. It can provide technical support for searching for potential zones in developed areas and optimizing development methods, and has good prospects for promotion and application.

Key words: fault controlled fractured and vuggy reservoirs, evaluation indicators, grading evaluation, water injection development, natural energy development

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