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《EXPERIMENTAL PETROLEUM GEOLOGY》 1997-03
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A STUDY ON THE HETEROGENEITY OF SAND BODY RESERVOIRS IN TRIASSIC BRAIDED DELTA, NORTHERN TARIM BASIN ── EXEMPLIFIED BY AKEKULE──DALIYA REGION

Zhang Ximing (Northwest Bureau of Petroleum Geology, MGMR, Urumqi, 830011) Wang Shuyi (Central Laboratory of Petroleum Geology, MGMR, Wuxi 214151)  
The Sand body of Triassic braided delta in northwest Tarim basin is one of the major hosting reser- voirs of oil/gas pools in this area, which can be divided into a frontal subfacies and plain subfacies accord- ing to their depositional features. Based on the analogy of typical sections in field and detailed analyses of drilling cores, six classes of bounding surface and nine architectural units are identified for the sand body of braided delta in Akekule--Daliya region. Furthermore, in view of the features and scale, the hetero-geneity can be classified into four classes, whieh will control the enrichment of oil/gas to different extents, resulting in a petroliferous difference in the sedimentary reservoir bodies either vertically, laterally or up- wards.
【Fund】: 国控85-101-04-01专题
【CateGory Index】: P618.13
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