1.School of Geology and Environment, Xi’an University of Science and Technology, Xi’an , China; 2.Gansu Academy of Sciences, Lanzhou , China

为更好地指导煤层气注入/压降试井设计、施工和解释,介绍了国内外煤层气注入/压降试井设备工艺与试井解释方面的研究现状和发展概况,重点分析了测试设备与工具、测试工艺、试井解释理论与方法、试井解释参数选取与结果检验4个方面存在的主要问题,指明未来煤层气注入/压降试井重点发展方向是注入/压降试井在套管射孔井中应用研究、设备工艺优化技术、室内试验模拟研究、数值试井技术等4个方面。从试井设计、资料录取、模型选择、数学算法等方面减少多解性是现阶段急需解决的问题。

In order to well guide the design, construction and explanation of the injection and pressure drop test well in the coalbed methane, the paper introduced the study status and development of the equipment technology and the test well explanation for the injection and pressure drop test well in the coalbed methane wells at home and abroad. The paper focused on the analysis on the main problems existed in the four aspects of the test equipment and tools, the test technology, the test well explanation theory and method and the test well explanation parameter selection and the results. The paper pointed out that the key development orientation of the future coalbed methane injection and pressure drop test well would be the injection and pressure drop test well applied to the casing perforation well, the optimized technology of the equipment technology, the indoor test simulation study and the numerical test well technology aspects. At present, from the test well design, information selection, model selection, mathematical algorithm and other aspects, the reduction of the multiplicity would be the problem to be solved immediately.

陕西省自然科学基金资助项目(2017JM4003)；国家科技重大专项资助项目(2011ZX05061-005-002)；