辽河油田注水开发技术与实践

doi:10.3969/j.issn.1006-6535.2020.06.005

摘要/Abstract

摘要： 辽河油田水驱油藏具有断层发育、含油层系多、储层非均质性强、泥质含量高、油藏类型复杂等特点。在近10 a的开发实践中,结合各类油藏注水开发难点,研发了深度精细油藏描述、细分注水调整、低效无效水循环识别、二三结合精细挖潜、多元注采调控等12项核心开发技术,形成了一套适合中高渗透砂岩油藏、低渗透砂岩油藏、特殊岩性油藏特点的注水开发技术序列,水驱油藏年产油量由324×10⁴t/a提高至360×10⁴t/a,水驱采收率提高3.3个百分点。探索形成的改善老油田注水开发效果的技术对策,对同类型油藏注水开发具有一定的指导和借鉴意义。

关键词: 注水, 深部调驱, 多元调控, 二三结合, 多元注采, 稀油, 高凝油, 辽河油田

Abstract: Water-flooding oil reservoirs in Liaohe Oilfield are characterized by more faults, multiple oil-bearing series, strong reservoir heterogeneity, high shale content and complex reservoir types. In the past 10 years of development practice, combined with the difficulties in water-flooding development of various oil reservoirs, 12 core development technologies have been developed, including deep fine reservoir description, subdividing water-flooding adjustment, identification of inefficient and ineffective water cycle, fine potential tapping by combination of secondary and tertiary recovery, and multivariate injection-production regulation and control, and a set of water-flooding development technologies suitable for medium-high permeability sandstone oil reservoir, low-permeability sandstone oil reservoir and special lithologic oil reservoir have been formed. The annual oil production of water-flooding oil reservoirs has increased from 324×10⁴t/a to 360×10⁴t/a, and the water-flooding recovery ratio has increased by 3.3 percentage points. The technical countermeasures to improve the effect of water-flooding development in old oilfields have certain guiding and reference significance for the same type of oil reservoirs.

Key words: water flooding, deep water-flooding adjustment, multivariate regulation and control, combination of secondary and tertiary recovery, multivariate injection and production, light oil, high pour-point oil, Liaohe Oilfield

中图分类号:

TE357.6

武毅, 石利华, 阴艳芳, 邱林. 辽河油田注水开发技术与实践[J]. 特种油气藏, 2020, 27(6): 40-46.

Wu Yi, Shi Lihua, Yin Yanfang, Qiu Lin. Technologies and Practice of Water-flooding Development in Liaohe Oilfield[J]. Special Oil & Gas Reservoirs, 2020, 27(6): 40-46.

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