Xinjiang Petroleum Geology

Xinjiang Petroleum Geology ›› 2011, Vol. 32 ›› Issue (5): 469-472.

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Analysis of Dynamic Connectivity on Carbonate Reservoir with Fracture and Cave in Tahe Field, Tarim Basin

YI Bin1,2a, CUI Wen-bin3, LU Xin-bian4, YANG Min2b   

  1. 1. College of Resources, China University of Geosciences, Wuhan, Hubei 430074, China;
    2. Northwest Oilfield Company, Sinopec, a. No.1 Oil Production Plant, b. No.3 Oil Production Plant, Korla, Xinjiang 841000, China;
    3. Scool of Energy Sources, China University of Geosciences, Beijing 100083, China;
    4. Research Institute of Exploration and Development, Northwest Petroleum Bureau, Sinopec, Urumqi, Xinjiang 830011, China
  • Received:2011-02-01 Online:2011-10-01 Published:2020-08-19

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Abstract: The Ordovician reservoir in Tahe field is a large carbonate reservoir with fractures and caves. The reservoir pore spaces are various caves, fractures, solution pores and micro-fractures. The reservoir development practice confirmed that this reservoir is characterized by multi-fractures-caves, multi-pressure systems and multi-flow units. This paper proposes the analytical methods for using dynamic information to analyze connectivity between fracture and cave, including the reservoir pressure trend analysis, the interwell production interference analysis, the fluid property difference analysis, the interwell interference well test analysis and tracer testing analysis, etc. Also, combined with Tahe actual production data, the flow units are classified and analyzed preliminarily.

Key words: Tarim basin, Tahe field, carbonate rock, fracture-cave reservoir, performance analysis, interwell connectivity, flow unit

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