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大牛地气田采用高压集气集中注醇工艺流程,部分气井出现井筒及集气管线堵塞严重等问题,为此开展井下节流技术的研究具有重要意义。文章结合井下节流工艺在大牛地气田D47井区大量现场试验资料,简述该工艺基本原理,降低集气支线压力等级,节约加热用气,节约甲醇抑制剂加注量,降低开采成本,具有显著技术和经济效益。
In Daniudi gas field, high-pressure gas gathering and centralized alcohol injection process is adopted, and some gas wells are experiencing serious blockage of gas-gathering pipelines. Therefore, it is of great significance to carry out research on downhole throttling technology. Based on a large amount of field test data in D47 well area of Daniudi Gas Field, this paper briefly describes the basic principle of the process, reduces the pressure level of gas gathering branch line, saves the heating gas, saves the dosage of methanol inhibitor, reduces the mining cost, With significant technical and economic benefits.