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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2003  >  25(4): 375-380
DONG Chun-mei, SONG Chun-gang. STUDY ON THE SEDIMENTARY MICROFACIES OF THE SHA-3 MEMBER IN BONAN OILFIELD[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(4): 375-380. doi: 10.11781/sysydz200304375
Citation: DONG Chun-mei, SONG Chun-gang. STUDY ON THE SEDIMENTARY MICROFACIES OF THE SHA-3 MEMBER IN BONAN OILFIELD[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2003, 25(4): 375-380. doi: 10.11781/sysydz200304375
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STUDY ON THE SEDIMENTARY MICROFACIES OF THE SHA-3 MEMBER IN BONAN OILFIELD

doi: 10.11781/sysydz200304375
  • 1.

    Graduate School, Research Institute of Geology and Geophysics, CAS, Beijing 100029, China

  • 2. College of Petroleum Resources and Information, Petroleum University, Dongying, Shandong 257061, China

  • Received Date: 2003-02-08
  • Rev Recd Date: 2003-06-03
  • Publish Date: 2003-07-25
    Abstract
  • Aimed at high exploration degree of the Sha-3 Member in Bonan oilfield, the Bonan Sag of the Middle Zhanhua Depression, the sedimentary microfacies were studied on the base of high-resolution sequence stratigraphical research, and sedimentary lobes were found as important targets for hydrocarbon exploration. During the Sha-3 period of the Bonan Sag, the essential sources from the Gudao convex and the secondary sources from the Luojia Nose formed the deep-lake turbidite-fan sedimentary system, including endofan, mesofan and exofan three subfacies and endofan feeding channel, endofan terrace, endofan natural levee, mesofan braided channel, mesofan lobe and exofan sheet sand six microfacies. Among them, the turbidite-fan mesofan subfacies was dominant. The mesofan lobes were lens-shaped and enclosed by the hydrocarbon source rocks of the Sha-3 Member. They formed excellent oil and gas pools of lithologic traps, and were new targets for hydrocarbon exploration in Bonan oilfield.

     

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