海拉尔盆地乌尔逊—贝尔凹陷断层控藏作用  

STUDY ON FAULT CONTROLLING HYDROCARBON ACCUMULATION IN WUERXUN-BEIER SAG,HAILAER BASIN

作　　者：马中振[1] 庞雄奇[2] 王洪武[3] 魏建设[4] 

机构地区：[1]中国石油勘探开发研究院南美研究部,北京海淀100083 [2]中国石油大学盆地与油藏研究中心,北京昌平102249 [3]中国石油新疆油田分公司准东石油基地录井三公司,新疆阜康831511 [4]西安地质矿产研究所能源地质处,陕西西安710054

出　　处：《西南石油大学学报（自然科学版）》2009年第6期27-31,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

摘　　要：通过对已发现油气藏系统研究和统计,发现乌尔逊—贝尔凹陷的油气藏几乎都与断层发育相关,据此将油气藏划分为断层相关背斜型(FA)、断层相关地层型(FS)、断层相关岩性型(FL)和断块型(FB)等4大类。对油气成藏控制因素进行研究后认为,断层控藏作用明显:(1)圈闭高点到断层的距离控制油气分布,90%以上的工业油气流井所在圈闭的高点到断层的距离小于1km;(2)断层断距大小控制油气聚集规模,当断距为200～400m时与断层相关的圈闭油气富集程度最高;(3)与NNE、NEE方向断层有关的圈闭容易聚集油气;(4)当与圈闭相关的断层断距小于盖层泥岩视厚度而大于储层砂岩视厚度时,圈闭容易聚集油气。Based on the systematical research and statistical analysis of the reservoirs founded in Wuerxun-Beier,it is found that almost all the reservoirs are related with faults,based on which,the reservoirs are divided into four kinds:fault-related anticline reservoir(FA),fault-related stratigraphic reservoir(FS),fault-related lithology reservoir(FL) and fault block reservoir(FB).After the study on reservoirs distribution,it is indicated that faults control the hydrocarbon accumulation:1.The distance from the fault to trap controls the hydrocarbon distribution,and more than 90% of the industry production wells are located within 1km from faults.2.The size of the fault throw controls the hydrocarbon accumulation,and the trap developing with a fault which has a fault throw between 200～300m contains the most hydrocarbon accumulation.3.The trap with NNE or NEE direction faults has more chance to accumulate hydrocarbon.4,When the vertical throw of trap-related fault is larger than the apparent thickness of reservoir and smaller than the apparent thickness of the seal,the trap is easier to accumulate hydrocarbon.

关 键 词：海拉尔盆地 乌尔逊-贝尔凹陷 油气藏 断层 主控因素 

分 类 号：TE122.3[石油与天然气工程—油气勘探]