Lithologic Reservoirs ›› 2018, Vol. 30 ›› Issue (5): 103-108.doi: 10.12108/yxyqc.20180512

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Flow unit combination and water flooding model of distributary channel sand body in eastern Xing-6 block

LYU Duanchuan1,2, LIN Chengyan1,2, REN Lihua1,2, SONG Jinpeng1,2, DI Xifeng1,2   

  1. 1. School of Geosciences, China University of Petroleum, Qingdao 266580, Shandong, China;
    2. Shandong Province Key Laboratory of Reservoir Geology, Qingdao 266580, Shandong, China
  • Received:2018-03-03 Revised:2018-06-02 Online:2018-09-14 Published:2018-09-14

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Abstract: In order to quantitatively analyze the flooding degree of ASP(alkaline surfactant polymer) flooding layers in shallow water delta distributary channel sand body in eastern Xing-6 block in Xingshugang oilfield, which belongs to Daqing placanticline,the vertical distribution characteristics of remaining oil saturation were determined. Through the observation of coring wells and the calculation results of relative change rate of permeability, and combining with oil saturation test data,different seepage units and their combination types were classified within the single sand body level,and the flooding degree were calculated quantitatively in different combination types of seepage units. A total of five types of fine-grained sediments and three combinations types of seepage units were identified in distributary channel. The understanding of flooding characteristics of different combination types of seepage units can provide geological basis for trapping potential of remaining oil in the later stage.

Key words: distributary channel, seepage units, water flooding model, eastern Xing-6 block

CLC Number: 

  • TE343
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