重庆科技学院学报（自然科学版）2024，Vol.26Issue(3)：28-35,8.DOI:10.19406/j.issn.1673-1980.2024.03.005
威荣深层页岩气井排水采气管柱优化研究
Research on Gas Production String Optimization in Weirong Deep Shale Gas Field
摘要
Abstract
In the face of the characteristics of high liquid production and long production time in the deep shale gas field of Weirong Gas Field,as well as the gradual decline in casing carrying capacity during production,research on production string optimization is being carried out.To clarify the optimization parameters of the Weirong gas field string,a critical gas flow chart for liquid carrying was established to analyze the production characteristics of differ-ent gas wells.By combining the critical gas carrying capacity calculation method and node system analysis method,the production string is optimized,and the minimum pressure difference method throughout the wellbore is used to optimize the position of oil pipe insertion.Research has shown that in the actual situation of difficulty in carrying liquid in the casing of deep shale gas wells in the gas field,it is possible to insert Φ 73.0 mm oil pipe to achieve stable production.For upturned gas wells,it is recommended to run the tubing at target A;For downward inclined gas wells,it is recommended to run the tubing in an area within 20 meters of the vertical depth from target B.This recommended solution has achieved good on-site application results in 20 wells,improving the stable production and self spraying period of gas wells by more than 3 months.关键词
深层页岩气/携液临界气量/管柱优化时机/油管尺寸/油管下入位置Key words
deep shale gas/liquid carrying critical gas volume/optimization timing of pipe columns/optimization timing of pipe columns分类
能源科技引用本文复制引用
吴朋勃,严小勇,张武装,李芝力,谢川,邱磊..威荣深层页岩气井排水采气管柱优化研究[J].重庆科技学院学报（自然科学版）,2024,26(3):28-35,8.基金项目
中国石化科技部"十条龙"项目"威远—永川深层页岩气开发关键技术"(P18058) （P18058）
