摘要
柯克亚凝析油气田西五一（３）凝析油气藏循环注气先导试验区从１９９４年９月２日开始注气，至１９９９年６月结束，累积注气３８２ｘ１０８ｍ３，累积采气３．４７ｘ１０５ｍ３，注采比１．０５，累积采凝析油６．８３ｘ１０４ｔ．循环注气维持了地层能量，遏制了地下反凝析的进一步恶化，改善了地层的渗流能力，大大提高了凝析油的采收率。截止到１９９９年６月，凝析油采出程度达３８．６％，比衰竭式开发的采收率提高１７．６个百分点，开发效果良好。
On 2, September 1994, the cyclic gas injection began in pilot area of Xiwuyi-3 condensatereservoir, Kekeya condensate oil-gas field. As of June 1999, the cumulative gas injection amounted to 382xl06 m3, with cumulative gas production of 347xl06 m3, injection/production ratio of l.25, and cumulativecondensate oil production of 68.3xl03 t. By using this process, the formation pressure was maintained, insitu retrograde condensation was effectively restricted, percolation flow capacity was improved, thus greatlyincreasing the condensate oil recovery factor. By the end of June 1999, good result of 38.6% of its condensate oil recovery percent was obtained, with incremental recovery factor of 17.6% compared with thedepletion drive process.
出处
《新疆石油地质》
CAS
CSCD
2000年第1期65-68,共4页
Xinjiang Petroleum Geology
关键词
循环注气
开发
凝析油
凝析气
油气田
Kekeya condensate gas reservoir, Pilot test, Cyclic gas injection, Development
