克拉玛依油田八区下乌尔禾组油藏北部控藏因素探讨  

PROBE INTO XIAWUERHE RESERVOIR CONTROLLING FACTORS IN NO. 8 EIGHT AREA OF KARAMAY OILFIELD

作　　者：袁述武[1] 邱争科[1] 张有印 邓世坤[1] 李婷[1] 曾玉兰[1] 

机构地区：[1]中国石油新疆油田公司采油二厂 [2]新疆油田勘探开发研究院,新疆克拉玛依834008

出　　处：《新疆石油天然气》2014年第1期7-9,18,共4页Xinjiang Oil & Gas

摘　　要：准噶尔盆地早期构造运动活跃,断裂比较发育,油气聚集带主要沿大断裂带分布[1]。八区下乌尔禾组油藏北部受克乌-大断裂影响,次生断裂发育。在探明含油面积外构造高部位部署评价井,试油结果为水层,油水关系比较复杂,控藏因素不清。通过高精度二次开发三维地震资料解释,认为影响该控藏因素有两种:(1)断裂控制油气成藏的纵向分布,南白碱滩断阶带发育多条断裂,南白碱滩1号断裂由于长期活动,对油气没有形成有效的封堵性,南白碱滩2、3号断裂为控藏断裂。(2)有利沉积相带控制油气平面分布,八区北部与530井区下乌尔禾组发育独立的沉积扇体,其扇顶、扇中部位砂体厚度大、物性好,是油气聚集的有利场所。Tectonic movement should be active at Junggar basin in early days, with fault comparative development,so oil and gas accumulation area is along the main fault zone. Norhen area of NO. 8 District Xia Wuerhe reservoir could be affected by Ke – wu big fault,with secondary fault development. Evaluation well is set up on the high part of structure outside of proven oil area,and testing result shows there is water,so oil and water relations are complex,besides,reservoir controlling factor is not clear. By analyzing the high accuracy the second development of 3D seismic data interpretation,there are two factors:( 1) the fracture control of oil and gas reservoir with vertical distribution,South Bai Jiantan fault terrace zone develops many faults; South Bai Jiantan number 1 fault does not controlling reservoir,and the reservoir did not form effective seal; South Bai Jiantan number 2 and 3 are fractures for controlling reservoir.( 2) the favorable sedimentary facies belt can control oil and gas distribution,NO. 8 area of Xia Wuerhe formation developes of multiple fan body,top fan and central fan with thick sand and good physical poperties,which is a prospective area for oil and gas accumulation.

关 键 词：控藏因素 南白碱滩断裂 有利沉积相带 

分 类 号：TE122.3[石油与天然气工程—油气勘探]