北美典型致密油地质特征对比及分类

doi:10.3969/j.issn.1673-8926.2015.01.007

岩性油气藏 ›› 2015, Vol. 27 ›› Issue (1): 44–50.doi: 10.3969/j.issn.1673-8926.2015.01.007

北美典型致密油地质特征对比及分类

赵俊龙¹，张君峰²，许浩¹，喻廷旭¹，赵达¹，耿昀光¹

1. 中国地质大学（北京）能源学院，北京 100083 ； 2. 中国石油勘探与生产公司，北京 100007

出版日期:2015-02-03 发布日期:2015-02-03
第一作者:赵俊龙（ 1989- ），男，中国地质大学（北京）在读博士研究生，研究方向为非常规油气地质与开发。地址：（ 100083 ）北京市海淀区学院路29 号中国地质大学能源学院。 E-mail ： zhao739264823@126.com
基金资助:
国家重大科技专项“煤层气排采工艺与数值模拟技术”（编号： 2011ZX05038-001 ）和国家自然科学基金项目“中高煤阶煤储层煤层气产出的煤岩学控制机理研究—— — 以沁南和韩城地区为例”（编号： 41272175 ）联合资助

Comparison of geological characteristics and types of typical tight oil in North America

ZHAO Junlong¹， ZHANG Junfeng²， XU Hao¹， YU Tingxu¹， ZHAO Da¹， GENG Yunguang¹

1. School of Energy Resources ， China University of Geosciences ， Beijing 100083 ， China ；2. PetroChina Exploration and Production Company ， Beijing 100007 ， China

Online:2015-02-03 Published:2015-02-03

摘要/Abstract

摘要：

为全面认识致密油，汲取国外成功的开发经验，从而推动我国致密油发展，通过详细对比北美地区巴肯组、鹰滩组和卡尔蒂姆组的地质特征，从方便储量计算的角度，提出了更为完善的致密油定义，并系统划分了致密油的类型。结果表明：致密油主要是指以吸附或游离状态赋存于未纳入常规油田产区的低渗储层（卡尔蒂姆组）或地层深部致密沉积岩（巴肯组、鹰滩组）中，且必须通过水平井或多级压裂等开发技术才能实现经济采出的轻质非常规石油聚集，可以划分为 2 个大类、5 个亚类，其中，巴肯组致密油资源量最大，具有“大而肥”的特点，主要赋存在渗透率为 0.01～1.00 mD 的致密砂岩中，卡尔蒂姆组致密油资源量次之，主要赋存在渗透率为 0.1～10.0 mD 的砂质泥岩中，而鹰滩组致密油资源量最低，主要赋存在渗透率为 0.000 001～0.000 100 mD 的致密灰岩中。

关键词: 水驱凝析气藏, 生产指示曲线, 水侵量, 反凝析, 物质平衡方程

Abstract:

In order to understand tight oil comprehensively, learn the successful development experiences and then promote the development of tight oil in our country, this paper analyzed and compared the geological characteristics of Bakken Formation, Eagleford Formation and Cardium Formation in North America. From the aspect of the convenient reserve calculation, more reasonable tight oil definition was put forward, and the types were divided systematically. The study results show that tight oil is an unconventional light petroleum accumulation in tight sedimentary rocks, including tight source rocks （mudstones） in place in a free or adsorbed state and tight sandstones and carbonates interbedded with or adjacent to source rocks（Bakken Formation and Eagleford Formation）, as well as the reservoirs which have not been developed with conventional technology （Cardium Formation）. The reservoir permeability is extremely low and the reservoir oil can’t achieve economic recovery unless using horizontal well and multistage fracturing techniques. Among the three tight oil reservoirs, tight oil resource of Bakken Formation is the largest and mainly occurs in the tight sandstone, of which the permeability is between 0.01 mD and 1.00 mD. Tight oil resource of Cardium Formation comes the second, and the lithology is mainly sandy mudstone and the permeability is between 0.1 mD and 10.0 mD. Eagleford Formation has the minimum amount of tight oil, and this kind of tight oil mainly occurs in the tight limestone and the range of permeability is 0.000 001 mD to 0.000 100 mD.

Key words: water drive condensate gas reservoir, productivity index curve, water influx, retrograde condensation, material balance equation

赵俊龙，张君峰,许浩，喻廷旭，赵达，耿昀光 . 北美典型致密油地质特征对比及分类[J]. 岩性油气藏, 2015, 27(1): 44–50.

ZHAO Junlong,ZHANG Junfeng,XU Hao,YU Tingxu,ZHAO Da,GENG Yunguang. Comparison of geological characteristics and types of typical tight oil in North America[J]. LITHOLOGIC RESERVOIRS, 2015, 27(1): 44–50.

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北美典型致密油地质特征对比及分类

Comparison of geological characteristics and types of typical tight oil in North America

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