CAJ | 학술논문

大港油田张东地区成藏地质条件有利,储层特征是影响该区油气富集的主控因素之一.本文利用测井、录井、岩心及分析测试资料,结合区域构造背景分析,确定张东地区主力储层沙二段砂岩为滨浅湖砂坝相沉积.张东断层上升盘地区处于砂坝主体部位,砂岩厚度大且储层物性较好,是研究区沙二段最有利储集体,位于下降盘的砂体,处在砂坝外缘区,物性较差,勘探风险较高.
대항유전장동지구성장지질조건유리,저층특정시영향해구유기부집적주공인소지일.본문이용측정、록정、암심급분석측시자료,결합구역구조배경분석,학정장동지구주력저층사이단사암위빈천호사패상침적.장동단층상승반지구처우사패주체부위,사암후도대차저층물성교호,시연구구사이단최유리저집체,위우하강반적사체,처재사패외연구,물성교차,감탐풍험교고.
The Zhangdong district of Dagang oilfield has the favorable geologic condition of petroleum and nutral gas accumulation,and the reservoir charcteristics was one of the main controlling factors to ptetroleum-gas enrichrnent.This paper syntheticlly used well logging、mud logging、well core and the data from testing,associated the tectonic setting,determined that the main reservoir of Zhangdong district,the number 2 of Shaheiie formaition,was belong to the sedimentary facies of sand-bars of mere-littoral lake.and the upthrown of Zhangdong fault which located in the main block of sand-bars,has the better Physical characteristic and thicker sandstone,howerve,the sandstone of the downthrow of Zhangdong fault which located in the exterior margin of sand-bars did not have so good conditions and the exploration risk is higher.