石油地球物理勘探2024，Vol.59Issue(3)：608-619,12.DOI:10.13810/j.cnki.issn.1000-7201.2024.03.024
临河坳陷高效油气勘探综合物探技术及应用
Comprehensive geophysical technologies for efficient oil and gas exploration and application in Linhe Depression
摘要
Abstract
In view of the problems restricting exploration in Linhe Depression for a long time,such as unclear main hydrocarbon-generating sag and accumulation targets,as well as difficult implementation of structures and strata and well location breakthrough,the technical route and key technologies suitable for efficient exploration in new exploration area are put forward.This paper applies the deep target gravity anomaly extraction techno-logy based on multi-density interfacial gravity inversion of middle-to-shallow layers and normalized gravity forward stripping built on various flexible constraint mechanisms to re-understand the geological structure of Linhe Depression and identifies Zhuoxi deep trough as the main hydrocarbon-generating area of Linhe Depres-sion.It is pointed out that the southern slope of Linhe Depression is controlled by the Yellow River fault trough and develops the central fault-barrier buried hill overburden tectonic belt,which has favorable reservoir accumu-lation conditions with two hydrocarbon sources on both sides and has huge oil and gas exploration potential.The paper proposes and uses time-frequency electromagnetic target reservoir oil and gas detection technologies such as time-frequency electromagnetic simulated annealing resistivity constrained inversion based on well vi-bration control and polarizability constrained inversion based on fine geoelectric structure model,which im-proves the electrical resolution of deep targets and the accuracy of oil and gas prediction of target reservoirs and quickly locates the targets in wells JH2x,LH1x,and XH1.It plays a key leading role in the breakthrough of oil and gas exploration in Linhe Depression and provides effective methods and technologies for oil and gas explora-tion in new areas with low exploration degrees,especially in deep basins.关键词
高精度重力勘探/重力多界面反演/重力剥层技术/时频电磁/电磁—井—震联合反演Key words
high-precision gravity exploration/multi-interface gravity inversion/gravity stripping technology/time-frequency electromagnetic method/joint inversion of electromagnetic/logging and seismic data分类
天文与地球科学引用本文复制引用
索孝东,王泽丹,石东阳,杨俊,李燕丽,张宇飞..临河坳陷高效油气勘探综合物探技术及应用[J].石油地球物理勘探,2024,59(3):608-619,12.基金项目
本项研究受中国石油集团公司科研计划项目"大功率时频电磁勘探系统现场试验"(2022ZS01)资助. （2022ZS01）
