【摘要】 前人研究表明南阳凹陷魏岗油田北部地区核桃园组地层精细划分程度较低,小层的划分结果尚不统一。针对该区研究现状及存在的问题,以层序地层学、沉积学等理论为指导,综合利用地质、测井、地震等技术,完成了研究区核桃园组三段二亚段(E2h23)小层精细划分与对比的工作,将E2h23划分为10个小层,其中E2h2-33、E2h2-53、E2h2-73、E2h2-103砂体较发育,为主要储集层和产油层。更多还原

【Abstract】 Predecessor’s studies indicated that fine stratigraphic division degree was low in Hetaoyuan Formation in the northern area of Weigang Oilfield and result of substratum division was not consistent.In consideration of situation and the problems existed there,the theoretical guidance of sequence stratigraphy,sedimentology,etc,in combination with geologic,well logging,and seismic technologies,a fine substratum division of E2 h2 3 is carried out and compared in the studied area,E2 h2 3 is divided into 10substrata,where in E2 h2-2 3,E2 h2-5 3,E2 h2-7 3 and E2 h2-10 3 sandbodies are developed,which are dominated reservoirs and oil producing zones.更多还原