基于井控误差校正的深度域解释技术在泌阳凹陷中南部地区的应用  

Application of depth domain interpretation technique based on well control error correction in the south-central area of the Biyang Depression

作　　者：应森群 YING Senqun(Exploration and Development Research Institute of Henan Oilfield Company,SINOPEC,Nanyang 473000,China)

机构地区：[1]中国石化河南油田分公司勘探开发研究院,河南南阳473000

出　　处：《复杂油气藏》2025年第1期45-50,69,共7页Complex Hydrocarbon Reservoirs

摘　　要：泌阳凹陷中南部地区发育多种油气藏类型,具有良好的油气成藏条件。由于区内发育白云岩,并且东部及南部邻近边界大断裂等原因,速度横向变化比较大,导致构造难以落实。常规时间域地震资料对断层成像不够准确,且存在构造反转的情况,严重制约本地区的高效滚动勘探和油藏评价工作,而深度偏移技术考虑横向速度变化,对断层的归位更加准确,利用叠前深度偏移得到的地震资料开展深度域解释技术研究,在井控深度误差校正的基础上开展构造精细解释并绘制构造图,形成了一套适合中南部地区的深度域构造解释方法。通过深度域构造精细解释,提高了构造解释精度,明确了地区构造特征,为区内的滚动勘探提供了有力支撑。There are many types of oil and gas reservoirs developed in the south-central part of the Biyang Depression,which has favorable conditions for the formation of oil and gas.Due to the development of dolomite rocks in the area and the proximity of large faults in the eastern and southern boundaries of the area,the velocity changes significantly horizontally,making it difficult to confirm the structure.Conventional time-domain seismic data are not accurate enough for imaging faults,and there is tectonic inversion,which seriously restricts the efficient rolling exploration and reservoir evaluation work in this region.However,the depth migration technology considers the lateral velocity changes,providing more accurate positioning of the faults.Using pre-stack depth migration seismic data for depth-domain interpretation technology research,and conducting detailed structural interpretation based on well control depth error correction,a set of depth-domain structural interpretation methods suitable for the south-central region has been formed.Through detailed depth-domain structural interpretation,the accuracy of structural interpretation has been improved,and the structural characteristics of the area have been clarified,providing strong support for the rolling exploration in the region.

关 键 词：叠前深度偏移 深度域解释 井控校正 泌阳凹陷 

分 类 号：P631[天文地球—地质矿产勘探]