地震反演约束下的敖南油田南部下白垩统黑帝庙油层砂体精细对比  

Fine sand body contrast of Lower Crataceous Heidimiao reservoir under the constrained seismic inversion in southern Aonan Oilfield

作　　者：李敏同[1] 李忠权[1] 麻成斗[2] 段新国[1] 李洪奎[1] 

机构地区：[1]成都理工大学"油气藏地质及开发工程"国家重点实验室 [2]中国石油大庆油田有限责任公司第七采油厂

出　　处：《岩性油气藏》2010年第B12期74-79,共6页Lithologic Reservoirs

基　　金：国家自然科学基金项目"托斯台伸展角度不整合与准噶尔盆地南缘成盆构造动力学研究"(编号:40773030);国家自然科学基金项目"龙门山前陆盆地南北段构造特征差异及成因机理研究"(编号:40573002)资助

摘　　要：近几年的勘探实践表明葡萄花构造南部的敖南油田黑帝庙油层具有良好的勘探开发前景。该区黑帝庙油层砂体研究程度较低,陆相地层相变快,导致砂体横向变化大,难以对砂体进行精细对比。以敖南油田茂701区块为研究对象,在砂组划分的基础上,通过地震反演约束,对黑帝庙油层砂体进行了精细对比研究。地震反演结果和实钻成果表明,纵向上黑一段砂体较发育,纵向砂体层数多且相互叠置、累计厚度大,横向上可以追踪对比;黑二段砂体基本不发育。这为准确预测有利储集区带,进而指导敖南油田黑帝庙油层的油气勘探提供了重要的地质基础。The exploration in recent years has proved that Heidimiao reservoir in southern Putaohua structure has a good exploration prospect. The research on sand bodies in Heidimiao reservoir is few. The facies change in terrestrial formation is fast, which causes great lateral variation of sand bodies, so it is difficult to carry out fine contrast between sand bodies. Taking Mao 701 block in Aonan Oilfield as a research example, based on the sandstone classification, fine sand body contrast of Heidimiao reservoir is carried out by constrained seismic inversion. The result of seismic inversion and drilling practice result show that the first part of Heidimiao reservoir vertically developed well, there are many vertical sand body layers which superimpose with large gross thickness, and the sand bodies can be executed tracing contrast on the horizontal; while the sand body of the second part of Heidimiao reservoir is basically undeveloped. It is helpful to exactly predict the favorable accumulation zone and provide an important geological basis for instructing the oil and gas exploration of Heidimiao reservoir in Aonan Oilfield.

关 键 词：地震反演 砂体精细对比 黑帝庙油层 茂701区块 

分 类 号：TE121.1[石油与天然气工程—油气勘探]