提高小尺度缝洞型储层预测精度的特色解释性处理技术及其应用  

Characteristic interpretation processing technique and their applications in improving prediction accuracy of small scale fractured-vuggy reservoirs

作　　者：李相文 马培领[1] 刘永雷[1] 李振周 郭延伟 杨显锋 LI Xiangwen;MA Peiling;LIU Yonglei;LI Zhenzhou;GUO Yanwei;YANG Xianfeng(Research Institute of BGP INC.,CNPC,Zhuozhou 072751,China;College of Geophysics,China University of petroleum,Beijing 102200,China;Equipment Service of BGP INC.,CNPC,Zhuozhou 072751,China)

机构地区：[1]中国石油集团东方地球物理勘探有限责任公司,涿州072751 [2]中国石油大学(北京)地球物理学院,北京102200 [3]中国石油集团东方地球物理勘探有限责任公司装备服务处,涿州072751

出　　处：《物探化探计算技术》2020年第1期42-49,共8页Computing Techniques For Geophysical and Geochemical Exploration

基　　金：国家科技重大专项(2016ZX05053-17)。

摘　　要：随着油气勘探与开发的深入,研究目标趋于规模小且能量弱的特征,钻井难度大幅提升,对小尺度储层及裂缝预测的精度要求不断提高,重要性越发突出。通过对叠前道集资料的分析,这里提出不规则异常切除、叠前各向异性旅行时差校正、地震道异常值消除、叠后体曲率属性二次运算等方法。结果表明,根据目标体的地质特征优选解释性处理技术进行预处理或级联处理与解释,能够有效地提高塔中、塔北奥陶系灰岩小尺度缝洞型储层的预测精度。With the development of the gas/oil exploration and exploitation,it becomes rather difficult to identify and evaluate the small-scale and fracture reservoirs due to the smaller size and weaker energy reflection in seismic profile.How to improve the prediction accuracy of reservoir is an issure of great importance.In the paper,by the analyzing of prestack seismic data,the presented method involves irregular and abnormal data removal and travel-time correction based on prestack anisotropy and curve attribute two-operation technique et al.The results show that the pre-processing processing,cascaded processing and geobody-oriented interpretation methods can effectively improve the prediction accuracy of small-scale fracture-cave Ordovician limestone karst reservoir in northern and central area of Tarim.

关 键 词：碳酸盐岩 解释性处理 五维解释 裂缝预测 二次运算 塔里木盆地 

分 类 号：P631.4[天文地球—地质矿产勘探]