摘要
北三台油田位于准噶尔盆地东部隆起北三台凸起中部,东泉3井区梧桐沟组油藏原油密度为0.925 t/m3,粘度为934.2 mPa.s(50℃),油质较稠。该区二叠系平地泉组为烃源岩;区域不整合面和断裂为油气提供了良好的运移通道;断块圈闭是油气聚集的有利场所;二叠系梧桐沟组沉积稳定,储层发育。分析其稠油油藏形成主要与该区的构造运动和成藏条件有关,将对该区进行下一步勘探开发具有一定的指导意义。
Beisantai oilfield is locateed in the middle of Beisantai bugle in the eastern uplift of Junggar basin. In dongquan NO. 3 well area,density of the crude oil is 0. 925t / m3,and when the temperature is 50℃,the viscosity of the oil is 934. 2mPa. s,which indicates that the oil quality is a little condensed. Sendimentation of Permian Pingdiquan formation is the favorable source rock in this area; The regional unconformity and vertical fractures are the migration pathway of oil and gas; the fault block traps provide the most advantageous position for oil-gas accumulation. Permian Wutonggou formation is steady and the reservoirs develop well in this area. The study shows that the formation of heavy oil reservoir is mainly associated with the tectonic movement and reservoir forming conditions,which may provide guidance for further exploration and development in this area.
出处
《新疆石油天然气》
CAS
2014年第1期10-13,5,共4页
Xinjiang Oil & Gas
关键词
准噶尔盆地
东泉3井区
梧桐沟组
稠油
形成分析
Junggar Basin
Dongqua NO.3 well area
Wutonggou formation
heavy oil
Accumulation analysis
