石油学报 ›› 2021, Vol. 42 ›› Issue (8): 971-985.DOI: 10.7623/syxb202108001

• 地质勘探 •    下一篇

塔里木盆地富满油田成藏地质条件及勘探开发关键技术

田军, 杨海军, 朱永峰, 邓兴梁, 谢舟, 张银涛, 李世银, 蔡泉, 张艳秋, 黄腊梅   

  1. 中国石油塔里木油田公司 新疆库尔勒 841000
  • 收稿日期:2021-06-16 修回日期:2021-07-21 出版日期:2021-08-25 发布日期:2021-08-31
  • 通讯作者: 田军,男,1964年2月生,1986年获石油大学(华东)学士学位,2006年获西南石油大学矿产普查与勘查专业博士学位,现为中国石油塔里木油田公司教授级高级工程师,主要从事地质勘探研究。
  • 作者简介:田军,男,1964年2月生,1986年获石油大学(华东)学士学位,2006年获西南石油大学矿产普查与勘查专业博士学位,现为中国石油塔里木油田公司教授级高级工程师,主要从事地质勘探研究。Email:Tianjun1-tlm@petrochina.com.cn
  • 基金资助:
    国家科技重大专项"深层—超深层油气成藏过程与勘探新领域"(2017ZX05008-004)和中国石油天然气股份有限公司科技重大专项"缝洞型碳酸盐岩油气藏效益开发关键技术研究与应用"(2018E-18)资助。

Geological conditions for hydrocarbon accumulation and key technologies for exploration and development in Fuman oilfield, Tarim Basin

Tian Jun, Yang Haijun, Zhu Yongfeng, Deng Xingliang, Xie Zhou, Zhang Yintao, Li Shiyin, Cai Quan, Zhang Yanqiu, Huang Lamei   

  1. PetroChina Tarim Oilfield Company, Xinjiang Korla 841000, China
  • Received:2021-06-16 Revised:2021-07-21 Online:2021-08-25 Published:2021-08-31

摘要: 塔里木盆地超深层海相碳酸盐岩油气资源丰富,已发现中国最大的风化壳型油田和最大的凝析气田,但勘探开发长期局限在古隆起及斜坡部位。近年来,随着勘探上突破"古隆起控油、斜坡富集"的传统理论认识以及地震、钻井与开发配套技术进步,在坳陷区发现了超深层(大于7 500 m)走滑断裂断控型油田——富满油田。富满油田的勘探开发实践与研究表明:(1)走滑断裂的发育不仅沟通了深层下寒武统烃源岩,而且控制了中奥陶统碳酸盐岩缝洞体储层的发育,并与上奥陶统巨厚泥岩构成了优越的走滑断裂断控型油气成藏体系;(2)油气沿走滑断裂破碎带呈条带状差异分布,具有圈闭类型特殊、油柱高度大、油品性质好、单井产量高等特点;(3)发现三级石油地质储量达4×108t,石油资源量达10×108t,开发高效井多,快速建成了原油产量达160×104t/a的产能。通过持续攻关,逐步形成了沙漠区超深层高密度宽方位三维地震采集、弱走滑断裂刻画、碳酸盐岩破碎带圈闭评价、高效井位部署、超深层钻完井等配套技术,支撑了超深层复杂断控型碳酸盐岩油藏的规模与效益勘探开发。

关键词: 超深层油田, 走滑断层, 断裂破碎带, 成藏条件, 高效勘探开发

Abstract: Tarim Basin has enriched oil and gas resources in ultra-deep marine carbonate rocks, where China's largest weathering crust-type oil reservoir and largest condensate gas reservoir have been discovered. However, the oil and gas exploration and development have been conducted only in palaeohighs and slopes for a long time. In recent years, with breakthroughs in the traditional theoretical understanding of "oil accumulation controlled by palaeohighs and enrichment in slopes" and advances in the supporting technologies of seismic exploration, drilling and development, Fuman oilfield, the ultra-deep (over 7 500 m) strike-slip fault-controlling oilfield, has been discovered in the depression area. Exploration and development practice and studies of the Fuman oilfield show the following results. First, the developed strike-slip faults not only cut through the deep Lower Cambrian source rocks, but also control the development of Middle Ordovician carbonate cavity-fracture reservoirs, and constitute a superior petroleum accumulation system under the control of strike-slip faults together with the huge thick Upper Ordovician mudstone. Second, the oil and gas show a stripe-shaped differential distribution along the strike-slip fractured zone, characterized by special trap type, large oil column height, good oil property, and high single-well production. Third, the predicted geological reserves of oil are up to 4×108t, the amount of oil resources is 10×108t, and there are many efficient development wells. The oil productivity of 160×104t/a has been rapidly achieved. Through continuous research, the supporting technologies such as ultra-deep, high-density and wide-azimuth 3D seismic acquisition, characterization of weak strike-slip faults, evaluation of traps in carbonate fractured zone, efficient well location deployment, ultra-deep drilling and completions have been gradually established in the desert area, providing supports for the large-scale and efficient exploration and development of the ultra-deep complex fault-controlling carbonate reservoirs.

Key words: ultra-deep oilfield, strike-slip fault, fractured zone, accumulation conditions, efficient exploration and development

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