柴达木盆地油气勘探潜在领域

发布时间：2019-04-18 08:23

【摘要】：最新资源评价表明,柴达木盆地油气资源丰富,常规油气资源量达61.7×10~8t,致密油资源量达8.6×10~8t,且剩余资源丰富,具备规模发现和可持续发展基础。为建成千万吨高原油气田并保障长期稳产,急需在现有勘探开发基础上进一步取得新突破与新发现。通过盆地石油地质条件的整体评价和近年昆北、英东、东坪、扎哈泉等地区的油气勘探实践,认为盆地山前古隆起、盆缘古斜坡和盆内晚期构造带控制油气宏观运聚,富烃凹陷、断裂—不整合输导体系和优势源储组合控制油气规模成藏。据此提出富烃凹陷周缘是油气勘探主战场,盆内大面积的晚期构造带挑战与希望并存,古隆起背景的基岩勘探前景广阔,盆地深层—超深层碎屑岩储层蕴含较大潜力的重要认识,明确了"富烃凹陷周缘古隆起"、"盆内晚期构造带"、"盆地基岩"及"古斜坡岩性—致密油气"四大潜在勘探领域。
[Abstract]:The latest resource evaluation shows that the Qaidam Basin is rich in oil and gas resources. The conventional oil and gas resources are 61.7 脳 10 ~ 8 t and the tight oil resources are 8.6 脳 10 ~ 8 t. The remaining resources are abundant and have the basis of scale discovery and sustainable development. In order to build ten million tons of plateau oil and gas fields and guarantee long-term stable production, it is urgent to make new breakthroughs and new discoveries on the basis of existing exploration and development. Based on the overall evaluation of petroleum geological conditions in the basin and the oil and gas exploration practice in North Kunbei, Yingdong, Dongping and Zahquan in recent years, it is considered that the basin pre-mountain paleo-uplift, basin margin paleo-slope and late basin tectonic belt control the macro migration and accumulation of oil and gas. Hydrocarbon-rich depression, fault-unconformity transport system and dominant source-reservoir combination control oil and gas accumulation. It is pointed out that the periphery of hydrocarbon-rich depression is the main battleground of oil and gas exploration, the challenge and hope coexist in the large area of late tectonic belt in the basin, and the prospect of bedrock exploration in paleo-uplift background is broad. The important understanding of the great potential of the deep-ultradeep clastic rock reservoirs in the basin has made clear the "hydrocarbon-rich depression peripheral palaeo-uplift" and "the late basin tectonic belt". "Basin bedrock" and "paleo-slope lithology-tight oil and gas" four potential exploration areas.
【作者单位】：中国石油青海油田公司;
【基金】：国家科技重大专项“柴达木盆地山前冲断带油气富集规律、勘探技术与区带和目标优选”(2016ZX05003-006) 中国石油重大科技专项“柴达木盆地建设千万吨油气田综合配套技术研究”(2016E-01)
【分类号】：P618.13

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