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

新疆石油地质 ›› 2019, Vol. 40 ›› Issue (zk(English) ): 228-234.

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

FAN Xiaoyi^1a,2, XUE Guoqini^1b, 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 Art and Science, Xiangyang, Hubei 441053, China

收稿日期:2018-04-24 修回日期:2018-10-15 出版日期:2020-01-01 发布日期:2021-05-18

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

FAN Xiaoyi^1a,2, XUE Guoqini^1b, 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 Art and Science, Xiangyang, Hubei 441053, China

Received:2018-04-24 Revised:2018-10-15 Online:2020-01-01 Published:2021-05-18
About author:FAN Xiaoyi, E-mail: fanxiaoyyxx@126.com

摘要/Abstract

摘要： 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 response, 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 slice, 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.

关键词: Chunguang oilfield, Shawan formation, meandering river, single channel, seismic forward modeling, logging-seismic combination

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 response, 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 slice, 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.

Key words: Chunguang oilfield, Shawan formation, meandering river, single channel, seismic forward modeling, logging-seismic combination

FAN Xiaoyi, XUE Guoqini, LIU Bin, HUANG Yintao, XIE Qi, LI Weicai. Recognition of Single Channel Sandbody of Meandering River With Logging-Seismic Combination[J]. 新疆石油地质, 2019, 40(zk(English) ): 228-234.

FAN Xiaoyi, XUE Guoqini, LIU Bin, HUANG Yintao, XIE Qi, LI Weicai. Recognition of Single Channel Sandbody of Meandering River With Logging-Seismic Combination[J]. Xinjiang Petroleum Geology, 2019, 40(zk(English) ): 228-234.

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

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

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