裂缝性致密砂岩储层裂缝孔隙度建模——以四川盆地平落坝构造须家河组二段储层为例

doi:10.7623/syxb201705010

石油学报 ›› 2017, Vol. 38 ›› Issue (5): 570-577.DOI: 10.7623/syxb201705010

裂缝性致密砂岩储层裂缝孔隙度建模——以四川盆地平落坝构造须家河组二段储层为例

黄小娟^1,2, 李治平^1,2, 周光亮³, 刘倩⁴, 李洪^1,2, 王红坤⁵

1. 中国地质大学能源学院北京 100083;
2. 中国地质大学非常规天然气地质评价与开发工程北京市重点实验室北京 100083;
3. 中国石油西南油气田公司川西北气矿四川江油 621700;
4. 北京恺标技术发展有限公司北京 100083;
5. 中国石油化工股份有限公司河南油田分公司勘探开发研究院河南濮阳 450000

收稿日期:2016-12-04 修回日期:2017-03-22 出版日期:2017-05-25 发布日期:2017-06-07
通讯作者: 李治平,男,1963年10月生,1985年获西南石油学院学士学位,1998年获西南石油学院博士学位,现为中国地质大学(北京)教授、博士生导师,主要从事油气田开发理论与开采方法、非线性油气层渗流力学理论与应用、油藏数值模拟方法及软件开发等方面的研究工作。Email:20022011671@cugb.edu.cn
作者简介:黄小娟,女,1973年3月生,1995年获江汉石油学院学士学位,现为中国地质大学(北京)博士研究生,主要从事储层建模与气藏模拟研究。Email:huangxj@cugb.edu.cn
基金资助:
国家重大科技专项（2017ZX05009-005）和北京市自然科学基金项目（No.3162026）资助。

Fracture porosity modeling of fractured tight sandstone reservoir: a case study of the reservoir in Member 2 of Xujiahe Formation, Pingluoba structure, Sichuan Basin

Huang Xiaojuan^1,2, Li Zhiping^1,2, Zhou Guangliang³, Liu Qian⁴, Li Hong^1,2, Wang Hongkun⁵

1. School of Energy Resources, China University of Geosciences, Beijing 100083, China;
2. Beijing Key Laboratory of Unconventional Natural Gas Geology Evaluation and Development Engineering, China University of Geosciences, Beijing 100083, China;
3. Northwest of Sichuan Gas Field, PetroChina Southwest Oil & Gasfield Company, Sichuan Jiangyou 621700, China;
4. Beijing KaiBiao Technology Development Company Limited, Beijing 100083, China;
5. Exploration and Development Research Institute, Sinopec Henan Oilfield Company, Henan Puyang 450000, China

Received:2016-12-04 Revised:2017-03-22 Online:2017-05-25 Published:2017-06-07

摘要/Abstract

摘要：

裂缝性致密砂岩储层的非均质性突出，相对于沉积相变对储层所造成的影响，后期成岩与构造运动对储层的改造更重要，裂缝的发育特征常是影响这类储层有效性的关键因素。常规描述储层性质的孔隙度、渗透率参数难以确切描述该类储层的性质。在评价裂缝性致密砂岩储层时，将裂缝破碎带作为优质储层研究对象，以裂缝孔隙度作为储层评价关键参数，是研究裂缝性致密砂岩有效储层分布规律的重要途径。在裂缝孔隙度建模过程中，构造裂缝孔隙度的空间结构信息是建模的关键，在建立地震属性与裂缝的相关性基础之上，使用地震属性构造了裂缝孔隙度的空间结构参数。生产数据表明，地震分频属性能够在整体上指示裂缝孔隙度的平面分布特征，可以用来构造裂缝孔隙度的变差函数，但该属性不能定量给出裂缝孔隙度的空间分布特征，因此不能用于辅助参数进行协同计算。将地震蚂蚁体数据和通过成像测井校正的单井裂缝孔隙度解释数据共同作为模拟裂缝孔隙度模型的输入参数，使用协同建模的方法建立裂缝孔隙度的空间分布，从而定量评价了裂缝性致密砂岩储层裂缝孔隙度的空间展布规律，为数值模拟提供数据支持。

关键词: 致密砂岩, 蚂蚁体数据, 成像测井, 裂缝孔隙度, 建模

Abstract:

Fractured tight sandstone reservoirs are highly heterogeneous. In contrast to the effect of sedimentary facies change, diagenesis and tectonic movements play more important role. The properties and distribution of fractures are always the key factors to evaluate such type of reservoir. The porosity and permeability parameters, which are normally used to describe reservoir properties, could not describe fractured tight sandstone reservoir sufficiently. It is an important method to evaluate the distribution of the effective reservoir of the fractured tight sandstone by treating fracture porosity as a random variable and using it as a key evaluating parameter. Constructing the spatial structure of the fracture porosity is the key step for modeling, and therefore the spatial structure parameters created by using seismic properties after the correlation was established. Production data indicated that frequency spectral decomposition properties of seismic could show the similar plane distribution of the fracture porosity, and could be used to calculate the varigram of the fracture porosity. However, the properties were 2D and could not be used as secondary data in modeling. Ant tracking data of seismic and log interpreted fracture porosity being as input data and using collaborative modeling method to create the spatial distribution of the fracture porosity were established and then evaluated the reservoir quantitatively.

Key words: tight sandstone, ant tracking data, imaging logging, fracture porosity, modeling

中图分类号:

TE34

黄小娟, 李治平, 周光亮, 刘倩, 李洪, 王红坤. 裂缝性致密砂岩储层裂缝孔隙度建模——以四川盆地平落坝构造须家河组二段储层为例[J]. 石油学报, 2017, 38(5): 570-577.

Huang Xiaojuan, Li Zhiping, Zhou Guangliang, Liu Qian, Li Hong, Wang Hongkun. Fracture porosity modeling of fractured tight sandstone reservoir: a case study of the reservoir in Member 2 of Xujiahe Formation, Pingluoba structure, Sichuan Basin[J]. Acta Petrolei Sinica, 2017, 38(5): 570-577.

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裂缝性致密砂岩储层裂缝孔隙度建模——以四川盆地平落坝构造须家河组二段储层为例

Fracture porosity modeling of fractured tight sandstone reservoir: a case study of the reservoir in Member 2 of Xujiahe Formation, Pingluoba structure, Sichuan Basin

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