油气藏评价与开发 >
2021 , Vol. 11 >Issue 3: 281 - 290
DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.03.002
溱潼凹陷西斜坡阜三段隐蔽油藏勘探开发一体化实践
收稿日期: 2021-03-08
网络出版日期: 2021-06-24
基金资助
中国石化科技项目“溱潼凹陷阜三段岩性油藏成藏规律与目标评价”(P19027-4)
Exploration and development integration practice of subtle reservoir of 3rd member of Funing Formation in western slope of Qintong depression
Received date: 2021-03-08
Online published: 2021-06-24
针对溱潼凹陷西斜坡浅层阜三段构造油藏不发育,深层低渗透油藏效益开发难度大的难点,采用沉积建模技术和波形反演等技术,深化成藏规律研究,评价出浅层阜三段构造—岩性油藏的有利区。自然电位—波形反演技术能清晰刻画5 m左右的砂体。建立溱潼西斜坡阜三段浅湖滩坝沉积—成藏模式,勘探开发一体化研究、部署和实施,发现了南华—仓吉千万吨级优质储量阵地,探井成功率70 %。实施“决策部署、地质工程、组织运行一体化”的建产模式,推进溱潼西斜坡阜三段构造—岩性油藏评价,落实可动用储量1 003×104t,建产能17.5×104t。原油盈亏平衡点由81美元/桶下降至46美元/桶,实现了隐蔽油藏的高效勘探开发。
李东海 , 昝灵 , 黄文欢 , 余文端 , 马晓东 , 郑永旺 , 周韬 , 印燕铃 . 溱潼凹陷西斜坡阜三段隐蔽油藏勘探开发一体化实践[J]. 油气藏评价与开发, 2021 , 11(3) : 281 -290 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.03.002
Aiming at the problems that the structural reservoir of the 3rd member of Funing Formation in the shallow layer of the western slope of Qintong depression is not developed and the benefit development of the deep low permeability reservoir is difficult, the sedimentary modeling technology and waveform inversion technology are adopted to deepen the study on the accumulation rule and evaluate the favorable area of the structural lithologic oil reservoir of the 3rsd member of the shallow Funing Formation. The spontaneous potential-waveform inversion technology can clearly describe the sand body of about five meters. Based on the established sedimentation and reservoir forming mode of shallow lake beach bar in the 3rd member of Funing Formation in the western slope of Qintong, Nanhua-Cangji ten-million-ton high quality reserve position has been found by the integrated research, deployment and implementation of exploration and development, and the exploration well success rate is 70 %. The construction and production mode of “decision-making and deployment, geological engineering, organization and operation integration” has been implemented to promote the structure-lithologic reservoir evaluation of the 3rd member of Funing Formation in the western slope of Qintong, and realize the available reserves of 1 003×104 t and the built the production capacity of 17.5×104 t. The break-even point for crude oil has been reduced from $81/bb1 to $46/bb1, enabling efficient exploration and development of concealed reservoirs.
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