煤层气测试方法的分析评价  

Evaluation of CBM Well Test Methods

作　　者：赵培华 刘曰武[2] 鹿倩 方惠军[3] 蒋华[4] 韩旭东[4] 芦梅[4] 

机构地区：[1]中石油煤层气有限责任公司,北京100028 [2]中国科学院力学研究所,北京100190 [3]中国科学院广州地球化学研究所,广东广州510640 [4]大港油田测试公司,天津300270

出　　处：《油气井测试》2010年第6期12-18,共7页Well Testing

基　　金：国家重大专项"大型气田及煤层气开发"专项支持;课题编号2009ZX05038001

摘　　要：煤层气测试方法是目前能够准确获取煤层参数的有效动态方法之一,它既可以定性也可以定量对煤层进行分析评价,它在确定煤储量基本参数方面具有明显的优势,其主要目的是获取储层的评价参数。从实际应用的角度,重点介绍了煤层气井常用试井方法。这些方法主要包括DST测试、段塞测试、注入/压降测试、水罐测试和压降测试方法等。由于煤层气在储集、运移、产出机理方面与常规油气之间存在明显差异,这些试井技术的应用有一定的局限性。通过对各种试井测试方法的优缺点、适用范围的研究评价,说明了煤层气测试在不同开发阶段的特征,探讨了不同阶段试井测试方法的改进途径,明确指出了在煤层气勘探开发中的测试方法及测试资料分析方法的方向。The purpose of CBM well test is to obtain physical parameters of coalbed which can provide scientific fundamental data for exploration and development of CBM and evaluation of production potential.CBM well test method is one of effective dynamic methods which is able to obtain coalbed parameters accurately,and can be used to analyze and evaluate coalbed qualitatively and quantitatively.This method has obvious advantages in determining the basic parameters of coal reserves, whose primary goal is to obtain evaluative parameters of coal reservoir.This paper focuses on CBM well test methods from the practical point of view.Those methods include mainly DST Test,Slug Test,Injection/Falloff Test,Tank Test,Pressure drawdown/buildup Test and so on.Because CBM is different from conventional gas well in storage,migration,and production mechanism,the conventional well test methods have some limitations in CBM well test.By comparing the advantages and disadvantages,range of application of well test methods,the characteristics of CBM well test are analyzed in detail and the ways to improve the well test methods in various developing stages are discussed in this paper,and pointed out the direction of well test and test data analyzing method in CBM exploration and development.

关 键 词：煤层气 试井 测试方法 资料分析方法 发展方向 

分 类 号：TE353[石油与天然气工程—油气田开发工程]