PDF《分布与评价》

文章编号: 1000-0747( 2009) 06-0669 -14 连续型 油气藏及其在全球的重要性 : 成藏 、 分布与评价 邹才能 1,

2 , 陶士振

1 , 袁选俊

1 , 朱如凯

1 , 董大忠

1 , 李伟

1 , 王岚

1 , 高晓辉

1 , 公言杰

1 , 贾进华

1 , 侯连华

1 , 张光亚

1 , 李建忠

1 , 徐春春

3 , 杨华

4 (

1 .

中国石油勘探开发研究院;

2. 提高石油采收率国家重点实验室;

3 . 中国石油西南油气田公司;

4. 中国石油长庆油田公司) 基金项目: 国家大型气田及煤层气开发项目( 20082X05001) 摘要: 分析国内外各种油气藏勘探和研究现状, 基于油气分布共性本质特征的认识, 阐述 连续型 非常规圈闭油气藏内涵 与成藏特征. 连续型 油气藏指在大范围非常规储集体系中油气连续分布的非常规圈闭油气藏, 其地质特征是: 在盆地 中心、斜坡等大面积 连续 分布, 且局部富集;

以大规模非常规储集层为主;

非常规圈闭, 储集空间大, 圈闭边界模糊;

自生 自储为主;

多为一次运移;

主要靠扩散方式聚集, 浮力作用受限;

非达西渗流为主;

流体分异差 , 饱和度差异较大 , 油、气、水 与干层易共存, 无统一油气水界面与压力系统;

资源丰度较低, 储量主要按井控区块计算;

开采工艺特殊, 需针对性技术. 论述了湖盆中心砂质碎屑流成因及其 连续型 油藏、大型浅水三角洲低―特低孔渗及致密砂岩油气藏、煤层气以及泥页 岩裂缝型油气藏等典型实例. 图8表5参33 关键词: 连续型油气藏;

非常规圈闭油气藏;

砂质碎屑流;

致密砂岩气;

页岩气 中图分类号: TE132 .

2 文献标识码: A Global importance of continuous petroleum reservoirs : Accumulation , distribution and evaluation Zou Caineng

1 ,

2 , Tao Shizhen

1 , Yuan Xuanjun

1 , Zhu Rukai

1 , Dong Dazhong

1 , Li Wei

1 , Wang Lan1 , Gao Xiaohui1 , Gong Yanjie1 , Jia Jinhua1 , Hou Lianhua1 , Zhang Guangya

1 , Li Jianzhong

1 , Xu Chunchun

3 , Yang Hua

4 (

1 . PetroChina Research Institute of Petroleum E xploration and Development , Bei jing

100083 , China ;

2 . S tate Key Laboratory of Enhanced Oil Recovery , R IP ED, PetroChina , Bei jing

100083 , China ;

3 . PetroChina Southwest Oi l &

Gas F ield Com pany , Chengdu 610051, China;

4. PetroChina Changqing Oi l f ield Company , X i'

an 710018, China) Abstract: Based on distribution of oil and gas in the w orld , the connotation and characteristics of continuous petroleum reservoirs are elaborated in this paper . Continuous petroleum reservoirs refer to unconventional trap reservoirs existing in a large -scale unconventional reservoir system , and the distribution of oil and gas is continuous .The main geological characteristics of continuous petroleum reservoirs are as follow s:located in the center and slope of a basin, large -scale distribution and rich locally ;

mainly of large -scale unconventional reservoirs;

t raps have no clear boundaries ;

mainly of self- generating and self-preserving;

mainly of primary migration;

accumulated by diffusion and buoyancy is limited;

non-Darcy flow ;

poor oil-w ater differentiation and different saturation;

oil, w ater and gas coexist and have no common interface and pressure system ;

resources abundance is low and reserves are calculated by well -cont rol region ;

the mining technologies are special and tailored techniques are required.In this paper are discussed the cause of deep-w ater sandy debris flow and a few examples on continuous reservoirs , the shallow-w ater delta low or ultra -low porosity and permeability reservoirs , coal -bed methane and shale -cracked reservoirs and so on . Key words: continuous pet roleum reservoirs;