四川盆地大庆探区油气勘探开发进展及前景展望  

Progress and prospects of oil and gas exploration and development of Daqing exploration area in Sichuan Basin

作　　者：印长海 王显东[1,2] 王有智 田小彬[1,2] 于海生 王志国[1,2] 鞠林波 师江波[1,2] 徐亮 YIN Changhai;WANG Xiandong;WANG Youzhi;TIAN Xiaobin;YU Haisheng;WANG Zhiguo;JU Linbo;SHI Jiangbo;XU Liang(State Key Laboratory of Continental Shale Oil,Daqing 163712,China;Exploration and Development Research Institute of PetroChina Daqing Oilfield Co.,Ltd.,Daqing 163712,China)

机构地区：[1]多资源协同陆相页岩油绿色开采全国重点实验室,黑龙江大庆163712 [2]中国石油大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《大庆石油地质与开发》2024年第4期59-72,共14页Petroleum Geology & Oilfield Development in Daqing

基　　金：中国石油天然气股份有限公司科学研究与技术开发项目“四川盆地大庆探区侏罗系陆相页岩油富集机理与关键评价技术研究”(2022DJ1809)。

摘　　要：四川盆地发育海陆两大含油层系,油气资源潜力巨大,但整体探明率较低。为了顺应油气改革新形势,四川盆地部分区块于2017—2018年先后流转至大庆油田,近几年大庆油田在川渝大地不断突破思想禁区,海陆相油气并重勘探、刻苦攻关、深化认识,取得了一系列喜人成效。截至2023年底,海相下二叠统天然气已累计提交探明地质储量1114.59×10^(8)m^(3),同时计划在“十四五”(2021—2025年)和“十五五”(2026—2030年)期间在下二叠统累计提交天然气探明地质储量3000×10^(8)m^(3),为大庆探区的增储上产奠定坚实的基础;陆相凉高山组具备页岩油大面积富集成藏的条件,石油资源量为26.75×10^(8)t、天然气资源量为1.7×10^(8)m^(3),展现出亿吨级储量的勘探大场面,是寻找规模石油储量最为现实的领域;陆相须家河组致密气源储配置好、纵向叠置,形成大面积连片致密气藏,预测总有利区面积约为6200 km^(2),资源量为3.15×10^(12)m^(3),展现出万亿立方米的资源潜力,是四川盆地大庆探区未来规模增储上产的现实领域。There are a series of marine and a series of continental oil-bearing strata developed in Sichuan Basin,with enormous oil and gas resources potential but relatively low proved ratio.In response to new situation of petroleum reform,some blocks of Sichuan Basin were successively transferred to Daqing Oilfield Company in 2017−2018.In recent years,Daqing Oilfield Company has continuously broken through ideological barriers in Sichuan and Chongqing region,emphasizing simultaneous exploration on both marine and continental oil and gas,persevering in overcoming difficulties,deepening understanding,and achieving a series of remarkable progress.By the end of 2023,proved gas in place of marine Lower Permian strata was submitted cumulatively to 1114.59×10^(8)m^(3).Meanwhile,it is planned to submit cumulative proved gas in place of Lower Permian strata to 3000×10^(8)m^(3)during the 14th Five-Year Plan(2021−2025)to 15th Five-Year Plan(2026−2030),laying solid foundation for reserves and production increase of Daqing exploration area.Continental Lianggaoshan Formation has conditions for large-area shale oil enrichment and accumulation,with petroleum resources of 26.75×10^(8)t and natural gas resources of 1.7×10^(8)m^(3),demonstrating large-scale exploration scene with hundred-million-tons reserves and is the most realistic area for finding large-scale reserves.Continental Xujiahe Formation has good source-reservoir assemblage for tight gas,with vertically superimposition,forming large-area continuous tight gas reservoirs.Predicted cumulative favorable area is approximately 6200 km²,with resources of 3.15×10^(12) m^(3),demonstrating resources potential of trillion cubic meters and representing a future realistic field for large-scale reserves and production increase in Daqing exploration area of Sichuan Basin.

关 键 词：四川盆地 大庆探区 海相天然气 陆相页岩油 陆相致密气 勘探进展 

分 类 号：TE132.1[石油与天然气工程—油气勘探]