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本文通过对国内外异常高压气藏实例的系统调研,总结异常高压气藏存在的地质特征,对开发过程中增产稳产措施建立了相应模板。研究指出:异常高压气藏多发生在沉积盆地,多为孔隙裂缝型储层,发生在较年轻的层系中。在开发过程中,应该及时调整合理采气速度,优化油管直径,合理关井复压,确保气藏稳产,针对出现的具体问题,应辅助一些增产措施,如配合压裂酸化技术,分支水平井和大斜度井,注气保压及一些排液措施。
In this paper, through systematic investigation of the examples of abnormally high pressure gas reservoirs both at home and abroad, the geological characteristics of abnormal gas reservoirs are summarized, and a corresponding template is established for the measures of increasing production and stabilizing production during the development. It is pointed out that the abnormally high pressure gas reservoirs mostly occur in the sedimentary basin and are mostly pore fracture reservoirs that occur in the younger strata. During the development process, it is necessary to timely adjust the gas recovery rate, optimize the tubing diameter, shut down well and re-pressure rationally to ensure stable gas production. In response to specific problems, some stimulation measures should be aided, such as with fracturing and acidizing technology, And high-deviated wells, gas injection pressure and some drainage measures.