学术
渤海湾盆地与鄂尔多斯盆地陆相优质储层形成条件对比分析
郑浚茂[1] 游俊[2] 何东博[3]
[1]中国地质大学能源学院,北京100083 [2]GNT国际公司,北京100029 [3]中国石油勘探开发研究院鄂尔多斯分院,北京100083
摘 要:
渤海湾盆地和鄂尔多斯盆地是我国重要的两类含油气盆地，渤海湾盆地属于拉张性断陷盆地，鄂尔多斯盆地属于克拉通上的坳陷盆地。由于盆地性质的不同，优质储层的主控因素各有差异：渤海湾盆地砂体类型多样，砂体分布具有较强的分割性，有利储层受垂向上次生孔隙发育带和异常压力带的控制；鄂尔多斯盆地砂体类型相对单一，砂体分布连续性强，储层垂向分布分带性不明显，主要受砂体内幕因沉积差异而导致的成岩差异的控制。渤海湾盆地油气勘探可以沉积相为基础，以成岩深度带和层位为线索展开。鄂尔多斯盆地要遵循“砂中找砂”的勘探思路，在普遍低渗背景下寻找相对高渗区。[著者文摘]
文章出处:
《现代地质》-2007年21卷2期 -376-386页
分 类 号:
文献标识码:
A
文章编号:
1000-8527（2007）02-0376-11
Comparison of Control Factors for High Quality Continental Reservoirs Between Bohai Bay Basin and Ordos Basin
ZHENG Jun-mao, YOU Jun, HE Dong-bo （ 1. School of Energy Resources, China University ofGeosciences, Beijing 100083, China; 2. GNT International Inc. , Beijing 100029, China; 3. Ordos Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China）
Abstract:
Baohai Bay basin, a typical extensional rift basin, and Ordos basin, an intracraton downwarped basin, are two important types of basins in China. The main control factors for high quality reservoirs are different because of their respective basin features. In Bohai Bay basin, the sandbody types are abundant and various, the distribution of sandbodies is separated seriously, and the high quality reservoirs are related with secondary pores and abnormal pressure vertically. In Ordos basin, the sandbody types are relatively monotonous, sandbodies have a good continuity, and the reservoirs are mainly controlled by the diagenetic differentiation caused by differential sedimentation inside the sandbodies, so the zonation of reservoir is not obvious vertically. In Bohai Bay basin, the oil and gas exploration should be based on sedimentary facies analysis, and focus on the favorable diagenetic zones and formations. However, in Ordos basin, the focus should be put on the relatively high permeability sandstones in the generally low permeable sandstone backgrounds.[著者文摘]
Key words:
high quality reservoir; sandbody type; diagenesis; control factor
基金资助:
池际尚老师,1955年任北京地质学院可燃矿产系系主任,她首次组织师生组成525石油普查大队,开展四川盆地西北地区石油普查工作,从此开辟了我国石油专业教学、科研、生产三结合的道路,为我校能源学院产学研基地建设打下了坚实的基础.池老师教导我们：地质工作要重视野外实践,要重视第一手资料,教育要与生产实践相结合.她的这些教导深刻地影响了我们.在池际尚老师90寿诞来临之际,谨以此文纪念我们敬爱的池老师!
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