新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (3): 286-287.

• 油气勘探 • 上一篇    下一篇

酒泉盆地青西凹陷下白垩统储集层预测

孙成田, 王蓉, 周在华, 李涛   

  1. 中国石油玉门油田分公司勘探开发研究院，甘肃玉门735200
  • 收稿日期:2004-01-15 发布日期:2020-09-18
  • 作者简介:孙成田(1969-).男,山东阳信人，工程师，石油地球物理勘探。联系电话:0937-3924061。

Prediction of Lower Cretaceous Reservoir of Qingxi Sag in Jiuquan Basin

SUN Cheng-tian, WANG Rong, ZHOU Zai-hua, LI Tao   

  1. Research Institute of Exploration and Development, Yumen Oilfield Company, PetroChina, Yumen, Gansu 735200, China
  • Received:2004-01-15 Published:2020-09-18

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摘要： 酒泉盆地西部的青西凹陷发育有泥云岩(泥质白云岩，白云岩质泥岩，白云岩)、泥岩、砂砾岩等多种岩性组合。分析表明，泥云岩之间及泥云岩和泥岩的速度差异不明显，测井响应特征表现相似，地震反射波组特征差别不大。根据这一储集层特点，依靠现有的技术，总结出了一套能解决实际问题的储集层预测方法，对青西四陷内有较高分辨率和信噪比三维资料覆盖的区块进行了地震反演、地质统计分析和岩性预测，收到了良好的效果。

关键词: 洒泉盆地, 储集层, 预测, 地震, 反演

Abstract: In Qingxi sag of Jiuquan basin developed mud-dolomites (argillaceous dolomite, dolomitic shale, dolomite), mudstone andglutenite,ete. Analysis of such an assemblage of lithology shows that velocity differences among mud-dolomites and between mud-dolomites and mudstone are small, with similar responses of well logging and few contrasts of seismic reflection events. According tothese features, relying on available technologies, the method for reservoir prediction that can be used to deal with practical issues ispresented, by which seismic inversion, geologic statistical analysis and lithology prediction are made in Qingxi sag with 3-D data of highresolution and signal/noise ratio, And good effects are obtained from them.

Key words: Jiuquan basin, reservpir, predictjon, seism, inversion

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