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王东坤,路媛媛,李林洹,等. 基于地震相控反演的海相煤系致密砂岩储层预测[J]. 科学技术与工程, 2020, 20(30): 12349-12354.
wangdongkun,luyuanyuan,lilinhuan,et al.Prediction of tight sandstone reservoirs in marine coal strata based on seismic facies controlled inversion[J].Science Technology and Engineering,2020,20(30):12349-12354.
基于地震相控反演的海相煤系致密砂岩储层预测
Prediction of tight sandstone reservoirs in marine coal strata based on seismic facies controlled inversion
投稿时间:2019-12-27  修订日期:2020-08-06
DOI:
中文关键词:  康宁东区 致密气砂岩 波形聚类 叠前同时反演 地震相控反演
英文关键词:tight gas sandstone  waveform clustering  prestack simultaneous inversion  seismic facies controlled inversion
基金项目:国家自然科学基金“致密油气储层地球物理表征与甜点预测试验区综合应用研究” (91730306)项目资助
                    
作者单位
王东坤 中海油能源发展股份有限公司工程技术分公司
路媛媛 中联煤层气有限责任公司
李林洹 中海油能源发展股份有限公司工程技术分公司
林利明 中联煤层气有限责任公司
史浩 中联煤层气有限责任公司
杜佳 中联煤层气有限责任公司
谢英刚 中海油能源发展股份有限公司工程技术分公司
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中文摘要:
      鄂尔多斯盆地东缘X地区太原组发育典型的致密砂岩气藏,但受煤层干涉影响,致密砂岩储层较难刻画,气层较难识别。为此,以太原组地质特征为指导,开展波形聚类地震相研究明确砂体边界,利用波形聚类定性结果对叠前同时反演砂体边界进行约束开展储层定量预测,结果表明相控储层预测结果既平面符合潮道砂体沉积特征、和钻井吻合较好,垂向又可定量刻画储层厚度;研究区西部的潮道砂体条带连片性较好、厚度大,厚度分布在10~30 m,最厚处位于X-01井附近,东部潮道砂体条带厚度较小,厚度分布在5~15 m。
英文摘要:
      The Taiyuan Formation in X block in the eastern margin of Ordos Basin is a typical tight gas sand layer. However, due to the interference of coalbed, it is difficult to characterize the tight sandstone reservoir and gas reservoir. Therefore, guided by the geological characteristics of Taiyuan Formation, the study of waveform clustering was carried out to clarify the boundary of sand body, used waveform clustering results to constrain prestack simultaneous inversion of sand body boundary and then carried out quantitative reservoir prediction result. The result shows the predicted results of facies controlled inversion not only conform to the sedimentary characteristics of tidal channel sand body in plane, but also well coincide with the drilling, and can quantitatively describe the reservoir thickness in vertical direction. In the west, the sand body belt has good connectivity and large thickness, and the thickness is distributed between 10~30 meters. The thickest part is located near well X-01, while the eastern belt has a small thickness, and the thickness is distributed between 5~15 meters.
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