胡尖山延安组油藏古地貌恢复及再认识  

Palaeogeomorphology Restoration and Re-understanding of Yan'an Formation Oil Reservoir in Hujianshan

作　　者：宋佳伟 肖飞 黄延明 廖雄飞 吴頔 吉少文 葛政廷 陈峻 SONG Jiawei;XIAO Fei;HUANG Yanming;LIAO Xiongfei;WU Di;JI Shaowen;GE Zhengting;CHEN Jun(Oil Production Plant 6 of PetroChina Changqing Oilfiel Company,Yulin 718600,China)

机构地区：[1]长庆油田分公司第六采油厂,陕西榆林718600

出　　处：《化工管理》2024年第33期161-164,共4页Chemical Management

摘　　要：由于胡尖山侏罗系延安组油藏的古地貌认识不清,不能全面掌握延安组油藏的分布及成藏规律,导致井位部署后部分采油井无工业油流或低于预期的产能,因此文章通过地震预测法、残余厚度法和印模法综合对比分析,并与以前恢复的古地貌对比,实现地质特征再认识。其研究表明,印模法恢复古地貌更加准确,通过印模法恢复的古地貌和早期恢复的古地貌对比,得到在蒙陕古河东西侧郝滩地区的古地貌与之前恢复的古地貌存在较大差异,由此为下步井位部署提供了地质依据。Due to the unclear understanding of the paleogeomorphology of the jurassic Yan'an formation oil reservoir in Hujianshan,the distribution and accumulation law of the Yan'an formation oil reservoir cannot be fully grasped,resulting in no industrial oil flow or lower than expected production capacity in some oil wells after well location deployment.Therefore,this paper comprehensively compares and analyzes the seismic prediction method,residual thickness method and impression method,and compares them with the previously restored paleogeomorphology to realize the re-understanding of geological characteristics.The research shows that the impression method is more accurate.By comparing the paleogeomorphology restored by the impression method with the previously restored paleogeomorphology,there is a big difference between the paleogeomorphology in the Haotan area on the east and west sides of the Mongolian and Shaanxi ancient rivers and the previously restored paleogeomorphology,which provides a geological basis for the next well location deployment.

关 键 词：延安组 胡尖山地区 古地貌恢复 鄂尔多斯盆地 

分 类 号：TE34[石油与天然气工程—油气田开发工程]