泌阳凹陷地层压力成因机制与预测方法  

Formation Pressure Genesis Mechanism and Prediction in Biyang Depression

作　　者：张永华[1] 陈祥[1] 张悦[2] 杜伟[1] 赵雨晴[1] Zhang Yonghua;Chen Xiang;Zhang Yue;Du Wei;Zhao Yuqing*(Sinopec Henan Oilfield Company,Zhengzhou,Henan 450000,China;PetroChina Daqing Oilfield Limited Company,Daqing,Heilongjiang163000,China)

机构地区：[1]中国石化河南油田分公司,河南郑州450000 [2]中国石油大庆油田有限责任公司,黑龙江大庆163000

出　　处：《特种油气藏》2020年第1期25-29,39,共6页Special Oil & Gas Reservoirs

基　　金：中国石化股份公司科技项目“泌阳凹陷油气聚集规律与精细评价关键技术”（ZDP17012）

摘　　要：为研究泌阳凹陷地层压力的成因机制,利用地层压力信息寻找有利油气藏,评价岩性油气藏含油气性,从沉积、油气形成与构造作用等方面分析了研究区地层压力的形成机理。利用单井的测井信息与高精度三维地震的速度信息,在合成记录精细标定的基础上,通过地震波形指示反演的方法,获得高精度的地层层速度信息;应用Fillippone法将获得的层速度数据体转化为地层压力数据体;利用高精度三维地震资料解释的层位数据,制作目的层段地层压力的地层体切片,实现地层压力的定量预测,预测结果与实测地层压力的误差小于3%。预测目的层段的异常压力分布区与岩性油气藏的富含油气性相关性较好,有效地评价了岩性圈闭的含油气性。该方法在研究区具有较好的适应性,对其他地区的地层压力预测具有借鉴作用。In order to study the genesis mechanism of formation pressure and discover the hydrocarbon reservoir through formation pressure data and evaluate the hydrocarbon-bearing properties of lithologic reservoirs,the formation pressure genesis mechanism was analyzed from sedimentation,hydrocarbon generation and tectonism.Based on the fine synthetic recording calibration,the single-well logging data and high-resolution 3D seismic velocity data were used to gain the high-resolution horizon velocity information through seismic waveform indication inversion.The horizon velocity data volume was converted to formation pressure data volume by using the Fillippone method.The horizon data from the high-resolution 3D seismic interpretation was used to prepare the stratum slice and realize the quantitative prediction of formation pressure.The error between the prediction and measured formation pressure is less than 3%.There is a better correlation between the abnormal pressure zone and hydrocarbon-bearing properties of lithologic reservoir,which effectively evaluate the hydrocarbon-bearing properties of lithologic traps.This method shows a favorable applicability in this area,which could provide certain reference for formation pressure prediction in other areas.

关 键 词：地层压力 层速度 地震波形指示反演 成因机制 岩性油藏 泌阳凹陷 

分 类 号：TE122[石油与天然气工程—油气勘探]