Recognition of Single Channel Sandbody of Meandering River with Logging-Seismic Combination

doi:10.7657/XJPG20190218

›› 2019, Vol. 40 ›› Issue (2): 1-1.doi: 10.7657/XJPG20190218

Recognition of Single Channel Sandbody of Meandering River with Logging-Seismic Combination

FAN Xiaoyi1a,2, XUE Guoqin1b, LIU Bin3, HUANG Yintao4, XIE Qi3, LI Weicai3

(1.Sinopec Henan Oilfield Company, a.Postdoctoral Work Station; b.Henan Oilfield Company, Nanyang, Henan 473132, China; 2.Postdoctoral Work Station, China University of Geosciences, Wuhan, Hubei 430074, China; 3.Research Institute of Exploration and Development, Henan Oilfield Company, Sinopec, Zhengzhou, Henan 450018, China; 4.Han River Institute, School of Resource Environment and Tourism, Hubei University of Arts and Science, Xiangyang, Hubei 441053, China)

Online:2019-04-01 Published:1905-07-16

Abstract

Abstract: The sedimentary system of the Neogene Shawan formation in Chunguang oilfield is dominated by meandering river deposits. Due to the continuous river channel migration and diversion, frequent vertical superposition of sand bodies and sparse well pattern, it is hard to identify the boundary of a single channel. Besides, the oil-water relationship is contradictory in some wellblocks, which limits the further remaining oil potential tapping. To detailedly characterize the single channel boundaries and achieve the goal of fine oil and gas development and on the basis of logging responses, the paper concludes four typical indicators to depict the boundary of single channel, establishes an original geological model and summarizes seismic identification indicators. According to the responses of sandstone and mudstone on the strata slices, the distribution characteristics and development positions of single channels of different periods are identified. The logging-seismic combination method can overcome the uncertainty of lateral logging data prediction and improve the accuracy of single channel characterization.Keywords:

CLC Number:

TE122.221

FAN Xiaoyi1a,2, XUE Guoqin1b, LIU Bin3, HUANG Yintao4, XIE Qi3, LI Weicai3. Recognition of Single Channel Sandbody of Meandering River with Logging-Seismic Combination[J]. , 2019, 40(2): 1-1.

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Recognition of Single Channel Sandbody of Meandering River with Logging-Seismic Combination

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