摘要
针对目前对鄂尔多斯盆地下寺湾油田雨岔地区延安组油藏的研究涉及甚少,在文献资料调研和储层地质学理论为指导的基础上,结合研究区钻井、测井、录井、试油试采、分析测试等基础资料,分析了鄂尔多斯盆地下寺湾油田雨岔地区延安组油藏类型和特征,并探讨总结了影响研究区延安组油藏成藏规律的主控因素。结果表明:研究区延安组油藏类型为岩性油藏,包括鼻状构造-岩性型、砂岩上倾尖灭型、砂岩透镜体型等,其成藏规律主要受烃源岩、三角洲砂体、生储盖组合配置关系及沉积相带和储层物性的变化等因素控制。研究结果为该区寻找油气勘探有利区提供了科学的地质依据。
The research about Yan＇an formation oil reservoir in Yucha region of Xiasiwan oilfield, Ordos basin is seldom involved so far. Based on references investigation and reservoir geology theory as the guidance, combined with the study area basic data of well drilling,well logging, mud logging, well test and production test, laboratory analysis and so on, the types and characteristics of Yan＇an formation oil reservoir in Yucha region of Xiasiwan oilfield, Ordos basin were analyzed, and the main controlling factors which influenced hydrocarbon accumulation rules of the study area Yan＇an formation oil reservoir were discussed and summarized. The results show that the oil reservoir types of Yan＇an formation are lithologic reservoir in the study area including nose structure-lithology, sand layer up thinning out, sand lens and so on.And its hydrocarbon accumulation rules are mainly controlled by hydrocarbon source rock, delta sandstone, dispositional relation of source-reservoir-cap assemblage, the change of sedimentary facies belt and reservoir physical property and so on.The results provide a scientific geological basis for searching for the favorable area of oil and gas exploration in this area.
出处
《石油化工应用》
CAS
2017年第8期85-88,共4页
Petrochemical Industry Application
关键词
鄂尔多斯盆地
雨岔地区
延安组
油藏类型
主控因素
Ordos basin
Yucha region
Yan＇an formation
oil reservoir type
main controlling factors
