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High-Yield Reservoir Prediction in Jurassic Channel Sandstones of Fudong Slope Area, Junggar Basin(PDF)

《新疆石油地质》[ISSN:1001-3873/CN:65-1107/TE]

Issue:
2018年06期
Page:
627-
Research Field:
Publishing date:

Info

Title:
High-Yield Reservoir Prediction in Jurassic Channel Sandstones of Fudong Slope Area, Junggar Basin
Author(s):
HE Kaiquan ZHOU Liping DENG Yong LIU Xiaohu LIU Yahui WU Xiaoning
(Urumqi Branch, Geophysical Research Institute, BGP, CNPC, Urumqi, Xinjiang 830016, China)
Keywords:
Junggar basin Fudong slope area Jurassic channel sandstone NMR logging porosity and permeability parameter geostatistical inversion
PACS:
P631.445
DOI:
10.7657/XJPG20180601
Abstract:
The Jurassic Shishugou group in Fudong slope area of Junggar basin is characterized by the development of channel-type sandbodies, which has the characteristics of “fault connected with oil source & reservoir controlled by lithology”. The production varies greatly among different sandbodies and it is difficult to predict high-yield reservoirs with conventional techniques and methods. On the basis of newly acquired “high density, wide azimuth and broadband” 3D seismic data of Wellblock Fudong-5, this paper analyzes the seismic response characteristics of channel sandstones. Firstly, the pre-stack AVO derivative attributes are used to distinguish oil and water in channel sandstones and the reservoirs are identified qualitatively; secondly, the effective porosity and permeability obtained from NMR logging are used to calculate porosity and permeability parameters comprehensively, and the correlation with the reservoir production is established; then the low-yield, medium-yield and high-yield oil layers can be distinguished in the reservoir by the geostatistical inversion and the production can be predicted quantitatively. Finally, the prediction results of high-yield reservoir can be obtained. The matching technology for predicting high-yield reservoirs of Jurassic channel sandstones in Fudong slope area has been integrated and formed, which can effectively guide the deployment of high-yield wells in the later period of the study area

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Last Update: 2018-12-05