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- Title
长宁页岩气田采气工艺实践与效果.
- Authors
范宇; 岳圣杰; 李武广; 肖丹; 李小蓉; 向建华
- Abstract
: In onier to evaluate the advantages, disadvantages and development trend of different gas production technologies in Changning shale gas field,and to provide a reference for the realization of long-term! stable production,this paper uses statistical analysis metliod to analyze the timing of tiubing running in 88 gas wells after putting into production and the practical effect of artificial lifting measures such as bubble discharge,plunger gas lift and vehicle mounted gas lift applied in the treatment of wellbore liquid accumulation. It is found that : early tubing running can improve the unit pressure drop) and gas production and achieve stable production & the foam drainage process in Changning area cannot solve the issue of wellbore fluid accumulation,while the North American plunger process can solve this problem,but there are still some problems in the plunger test in Changning; early platform compressing can achieve certain increase in production, but tlie maintenance cost is high. The results show that: Early running of tubing can improve the production capacity of gas well with stable fluid,and the tubing should be run as soon as possible after the completion of the well on the premise that the operation capactiy with pressure is allowed; Compared with other artificial lifting methods,plun ger gas lift has the advantages of relatively low cost and can eliminate the problem of wellbore fliuid accumulation,which is the key development direction in the future
- Publication
Natural Gas & Oil, 2020, Vol 38, Issue 2, p54
- ISSN
1006-5539
- Publication type
Article
- DOI
10.3969/j.issn.1006-5539.2020.02.009