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大牛地气田属低渗透封闭气藏,且储层非均质性强,认识气藏地层参数,预测气井产能,评价生产状况具有十分重要意义。在矿场应用中,试井常常需要关井,影响产量导致测试难以开展;同时积液严重的气井,由于关井测试会造成井底积液,严重时会造成测试后无法生产,需要依靠排液措施才能恢复生产。面对大量气井无法从事试井的问题,利用生产数据进行分析,成功的解决了上述难题,并在大牛地气田取得了较好的效果。
Daniudi gas field is a low-permeability closed gas reservoir with strong reservoir heterogeneity. It is of great significance to know formation parameters of gas reservoirs, predict gas well productivity and evaluate production status. In mine applications, well testing often needs to be shut-in, affecting the yield lead to the test difficult to carry out; at the same time severe gas wells, due to shut-in test will cause bottom-hole fluid accumulation, serious test will result in failure to produce, Liquid measures to resume production. The face of a large number of gas wells can not engage in well testing, the use of production data analysis, the successful solution to these problems, and in Daniudi gas field has achieved good results.