石油学报 ›› 2015, Vol. 36 ›› Issue (S2): 194-202.DOI: 10.7623/syxb2015S2018

• 地质勘探 • 上一篇    

全球含油气盆地深层与中浅层油气藏压力分布特征

汪文洋1,2, 庞雄奇1,2, 武鲁亚1,2, 陈冬霞1, 霍志鹏3, 庞莹1,2, 陈迪1,2   

  1. 1. 油气资源与探测国家重点实验室 北京 102249;
    2. 中国石油大学盆地与油藏研究中心 北京 102249;
    3. 东北石油大学地球科学学院 黑龙江大庆 163318
  • 收稿日期:2015-03-11 修回日期:2015-06-22 发布日期:2016-02-24
  • 通讯作者: 庞雄奇,男,1961年8月生,1982年获江汉石油学院学士学位,1991年获中国地质大学博士学位,现为中国石油大学(北京)教授、博士生导师,主要从事油气藏形成与分布预测的教学与科研工作.Email:pangxq@cup.edu.cn
  • 作者简介:汪文洋,男,1990年5月生,2013年获长江大学学士学位,现为中国石油大学(北京)硕士研究生,主要从事含油气盆地油气成藏机理研究.Email:wang245230462@gmail.com
  • 基金资助:

    国家重点基础研究发展计划(973)项目(2011CB201100)和国家重大科技专项(2011ZX05006-006)资助.

Pressure distribution features of deep and middle-shallow hydrocarbon reservoir in global oil and gas-bearing basins

Wang Wenyang1,2, Pang Xiongqi1,2, Wu Luya1,2, Chen Dongxia1, Huo Zhipeng3, Pang Ying1,2, Chen Di1,2   

  1. 1. State Key Laboratory of Petroleum Resources and Prospecting, Beijing 102249, China;
    2. Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China;
    3. College of Earth Science, Northeast Petroleum University, Heilongjiang Daqing 163318, China
  • Received:2015-03-11 Revised:2015-06-22 Published:2016-02-24

摘要:

基于全球52 928个油气藏压力特征统计,从盆地类型、储集岩性、储层物性、油气藏温度、油气相态等5个方面出发,对深层和中浅层油气藏压力特征进行对比分析.研究结果表明,在盆地中浅层,油气藏总体以常压为主,前陆盆地、碳酸盐岩储层、致密储层、高温环境、凝析气中更易形成超压油气藏;在盆地深层,油气藏总体以超压为主,被动陆缘盆地、碎屑岩储层、非致密储层、高温环境、油气混相中更易形成超压油气藏.不同压力特征油气藏随埋深呈现一定规律性:①负压和常压油气藏分别分布在深度2 500 m和3 500 m以上地层中,超压油气藏主要分布在深度4 500 m以下地层中;②常压油气藏在冷盆、温盆、热盆开始大量出现的深度分别为2 400 m、1 600 m和1 200 m,呈变浅趋势;超压油气藏在冷盆、温盆、热盆开始大量出现的深度分别为4 400 m、3 600 m和2 800 m,同样呈变浅趋势;③负压油气藏有利发育区主要位于盆地浅层,常压油气藏有利发育区主要位于盆地中层,超压油气藏有利发育区主要位于盆地深层;④冷盆超压油气藏发育范围较宽,热盆超压油气藏发育范围较窄,温盆介于两者之间.

关键词: 压力分布特征, 压力对比, 深层油气藏, 中浅层油气藏, 含油气盆地特殊

Abstract:

Based on the pressure features of 52 928 hydrocarbon reservoirs around the world, a correlation analysis is conducted on the pressure characteristics of deep and middle-shallow reservoirs from five aspects, i.e., basin type, reservoir lithology, reservoir physical property, hydrocarbon reservoir temperature, and oil-gas phase state. The results indicate that normal pressure commonly exists in middle-shallow hydrocarbon reservoirs of basins, while the overpressured hydrocarbon reservoirs are prone to form in foreland basin, carbonate reservoir, tight reservoir, high temperature environment and condensate gas. The overpressured hydrocarbon reservoirs are dominated in deep layers of basins, which are prone to form in passive continental margin basin, clastic reservoir, non-tight reservoir, high temperature environment, and oil-gas miscible phase. Reservoirs with different pressure characteristics present a certain regularity along with increasing burial depth:(1) abnormal low pressure and normal pressure reservoirs are mainly distributed in the strata with buried depth less than 2 500 m and 3 500 m, respectively; overpressure reservoirs are mainly distributed in the strata with depth more than 4 500 m; (2) extensive normal pressure reservoirs are formed at the depth of 2 400 m, 1 600 m and 1 200 m in cold, warm and hot basin; the overpressured reservoirs are largely formed at the depth of 4 400 m, 3 600 m and 2 800 m in cold, warm and hot basin; (3) favorable development areas for abnormal low pressure, normal pressure and overpressure reservoirs are located in shallow layers, middle layers and deep layers of basins, respectively; (4) development scope of overpressure hydrocarbon reservoir is wider in cold basin, narrower in hot basin, and medium in warm basin.

Key words: pressure distribution features, pressure correlation, deep hydrocarbon reservoir, middle-shallow hydrocarbon reservoir, oil and gas-bearing basin

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