绥滨拗陷源岩生排烃特征及油气远景区预测  

Characteristics of generation and expulsion hydrocarbon of source rock and forecast of favorable area of oil-gas in Suibin depression

作　　者：高宁[1] 张立含[1] 刘桂莲[2] 

机构地区：[1]大庆石油学院地球科学学院,黑龙江大庆163318 [2]大庆油田有限责任公司第二采油厂,黑龙江大庆163414

出　　处：《大庆石油学院学报》2007年第5期4-6,共3页Journal of Daqing Petroleum Institute

基　　金：国家"973"重大基础研究发展规划项目(2001CB209104)

摘　　要：通过分析绥滨拗陷主要目的层源岩有机质类型和煤层发育特征,得到源岩应以生气作用为主.通过源岩生排烃模拟结果得到,绥滨拗陷主要目的层源岩排油高峰早且持续时间短,排气高峰早持续时间相对较长,有利于天然气运聚成藏.绥滨拗陷北部主要目的层源岩以排气为主,南部以排油为主,这主要是由于拗陷北部源岩有机质演化程度高于南部,主要目的层源岩石油资源量约为4.66×108t,分布在拗陷南部的南大林子凹陷及其附近,天然气资源量约为1227.74×108m3,主要分布在拗陷北部新房凹陷及其附近.Through the analysis of the type of organic matter of source rock and developing characteristics of coal bed of major target formation in Suibin depression, the conclusion can be drawn that the source rock generated mainly gas. It can be known that the peak stage of expulsion hydrocarbon came earlier and lasted shorter time, and that the low stage of drainage of gas came earlier and lasted longer time. It is favorable to transport and accumulate oil and gas. The source rock of major target formation in the north of Suibin depression drained mainly gas, whereas that in the south drained mainly oil. The reason why there exists a difference between them is that organic evolution extent in the north is higher than that in the south. The resource quantity of oil of source rock of major target formation in Suibin depression is about 4.66×108 t and distributes mainly in Nandalinzi sag and near it in the south of Suibin depression. The resource amount of gas of source rock of major target formation in Suibin depression is about 1 227.74×108 m3 and distributes mainly in Xinfang sag and near it in the north of Suibin depression.

关 键 词：绥滨拗陷 主要目的层 源岩 生排烃 资源量 远景区 

分 类 号：TE121.31[石油与天然气工程—油气勘探]