煤层气井试井工艺  

Well Testing Technology of Coal Bed Gas Well

作　　者：武楗棠[1] 陈书庆[1] 胡广振[1] 

机构地区：[1]中原石油勘探局

出　　处：《断块油气田》2000年第4期64-66,共3页Fault-Block Oil & Gas Field

摘　　要：对于煤层气井的生产开发来说 ,要确定一口煤层气井的经济可行性 ,在该井压裂和投产 (包括试采 )前 ,必须对该煤层的生产潜力进行评价 ,评价所需的储层数据可从试井中取得。煤层气试井方法很多 ,目前国内外使用较多的是注入 /压降法。注入 /压降法试井是一种单井压力瞬变测试 ,注入排量和压力是其设计最关键的因素。文中简述了该方法的原理、施工步骤及优缺点 ,并给出了注入 /压降法试井常用参数的计算方法、常用的裸眼井和套管井下井管柱结构和地面设备。Defining the economic feasibility of a coal bed gas well, it is necessary to estimate the production of the coal bed. Before the well is fractured & put into production. The reservoir data of the estimate acquire from the testing well. There are many methods on the coal bed gas testing, The injection & pressure drop method is more used in oversea at present, It is a testing of a single well instantaneous pressure change, the most key factor is the design of injecting capacity & pressure. This paper introduce the frequently used parameter's calculation methods of injection & pressure drop, the pipe structure and ground equipment of the open hole well & cased well, and simply introduce the principle, the construction process and so on.

关 键 词：煤层气 试井 压降法 工艺 注入测试 气田开采 

分 类 号：TE373[石油与天然气工程—油气田开发工程]