摘要
煤层气井注入/压降试井可以获取煤储层渗透率、储层压力等重要参数,封隔器的选用对测试成功至关重要。本文介绍了K341型封隔器的结构、性能、工作原理及其用于煤层气井注入/压降试井的施工工艺,提出了使用中应注意的问题。根据实际测试资料,K341型封隔器应用于煤层气裸眼井的注入/压降试井,具有操作简单、测试准确、成本低、成功率高的优点,建议注入/压降测试采用煤层气试井用K341型凡尔式结构封隔器。
Reservoir parameters such as permeability and pressure are important which can be gained in the injection/falloff test, the selection of packer is critical to the successful test. This article introduces the composition, performance and working principle of the K341 packer and the application in the injec- tion/ falloff test, points out the problems in use. Based on the actual test, the K341 packer used in the injection/falloff test has the advantages of easy operation, accurate result, low cost and high success rate. It is proposed to use K3dl packer with valve in the injection/falloff test for CBM open hole wells.
出处
《中国煤层气》
2014年第2期30-32,共3页
China Coalbed Methane
关键词
K341封隔器
煤层气
注入
压降测试
原地应力测试
试井工艺
K341 packer
CBM
injection/falloff well testing
in- situ stress testing
well testing techniques
