重磁电资料在XF山西侧油气地质—地球物理综合解释中的应用

为了解XF山西侧地区的深部构造特征,电性层与断裂的展布情况以及圈定有利油气构造带,为含油气远景评价和选择有利区块提供依据,本文综合MT电法、重力和磁法资料,并以物性资料为基础,石油地质理论为指导,对重磁电资料与石油地质资料进行了联合正反演综合解释,对剖面中生界和古生界地层垂向分布进行了深入研究,确定了本区电性层的展布、断裂及有利生储盖组合的综合物探异常特征,结果表明：物探剖面中、东段至多发育三套电性层,而西段可完整发育五套电性层,震旦系—寒武系地层发育厚度较大,构造变形相对较弱,是油气勘探的有利区,从而验证了该套综合解释方法在该区的有效性。

The Application of Gravity, Magnetic and Electric Data to the Comprehensive Petroleum Geological and Geophysical Interpretation on the Western Side of XF Mountain

In order to understand the deep structure characteristics,electrical layer,fracture distribution as well as the delineation of favorable petroleum zone of the west side of XF Mountain,this paper made the comprehensive interpretation of the forward calculation and inversion of the gravity,magnetic and electrical data,and the petroleum geological data by using MT information,gravity data,magnetic data and physical property data guided by the petroleum geology.And it carried out the in-depth study of the profile’s Mesozoic and Paleozoic strata vertical distribution and determined the spread of the electrical layer,fracture and geophysical abnormal characteristics of the under combination’s favorable combination of reservoir.The results indicated：the middle and eastern section of the profile developed up to three sets of electrical layer,while the western section can develop five sets of electrical layer completely,Ediacaran and Cambrian strata has the thick tectonic and the deformation is relatively weak,which is the favorable area for oil and gas exploration.These results verified the validity of the comprehensive interpretation methods in this area.