埕海地区沙河街组凝析油气藏分类与开发对策
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摘要
埕海地区沙河街组发育较多凝析油气藏,通过分类评价,判定该区存在两种带油环凝析气藏类型,在数值模拟的基础上,进行开发程序、开发方式、压力保持水平、气井动用时机论证,提出了适宜的开发对策,建议先采油后采气,储集层不稳定类型采取枯竭式开发,储集层稳定、储量规模较大型量采取油水界面注水开发,初期油环注水注采比应控制在0.7,气油比达到1200~2000时打开气顶区气井开发效果最好。
Condensate reservoir is developed in Shahejie group in Chenghai area.It is judged that there are twokinds of condensate reservoir with oil ring through classification evaluation. The development program, development method, pressure maintaining level and gas well producing time are demonstrated on basis of numerical simulation. The suitable development strategy is proposed. Oil recovery first and then gas recovery are recommended. It is suggested the unstable reservoir take the depletion type, the stable reservoir with larger scale of reservestake the waterflooding on oil-water interface. The injection-production ratio of water and oil in the initial stageshould be controlled in 0.7, gas producing wells in gas cap area would be put into production when the gas oil ratio reaches 1200～2000 with the best effect.
Condensate reservoir is developed in Shahejie group in Chenghai area.It is judged that there are twokinds of condensate reservoir with oil ring through classification evaluation. The development program, development method, pressure maintaining level and gas well producing time are demonstrated on basis of numerical simulation. The suitable development strategy is proposed. Oil recovery first and then gas recovery are recommended. It is suggested the unstable reservoir take the depletion type, the stable reservoir with larger scale of reservestake the waterflooding on oil-water interface. The injection-production ratio of water and oil in the initial stageshould be controlled in 0.7, gas producing wells in gas cap area would be put into production when the gas oil ratio reaches 1200～2000 with the best effect.
引文
[1]马士煜.凝析油气藏开采技术[M].北京:石油工业出版社,1996.
[2]李士伦,潘毅,孙雷.提高凝析气藏采收率的新思路[J].天然气工业,2008,28(9):1-5.
[3]窦煜,蔡忠贤.埕海沙河街组高收缩原油特征及开发对策[J].海洋石油,2016,36(1):52-55.
[4]景凤江,宋春.华海上凝析气藏烃类相态综合识别[J].中国海上油气,2009,21(5):316-323.
[5]吴健,胡向阳,郑香伟,等.北部湾盆地凝析油气藏综合识别方法[J].天然气地球科学,2015,26(3):495-503.
[6]袁士义,叶继根,孙志道.凝析气藏高效开发理论与实践[M].北京:石油工业出版社,2003.
[7]蒲庆南,夏欣,赵天沛.东海平湖油气田中高渗凝析气藏开发效果分析[J].海洋石油,2008,28(1):36-40.
[8]宫长利,杨树合,王哲,等.大港滩海复杂断块凝析气藏开发方案研究[J].天然气地球科学,2008,19(3):410-413.
[9]熊钰,刘江斌,何书梅,等.张海5井区复杂断块带油环凝析气藏开发技术界限研究[J].重庆科技学院学报,2011,13(4):1-3.
[10]李骞,李相方,郭平,等.吐哈气田凝析气井产能影响因素分析及预测[J].油气地质与采收率,2010,17(6):82-84.
[11]刘刚.气井携液临界流量计算新方法[J].断块油气田,2014,21(3):339-340.
[12]窦松江,冯小宁,李炼民.尼日尔G油田气顶油气藏开发策略研究[J].非常规油气,2015,2(5):34-37.
[13]张瀛,王兴明,冯金义,等.马西凝析气藏试井解释方法研究[J].非常规油气,2015,2(2):38-43.
[2]李士伦,潘毅,孙雷.提高凝析气藏采收率的新思路[J].天然气工业,2008,28(9):1-5.
[3]窦煜,蔡忠贤.埕海沙河街组高收缩原油特征及开发对策[J].海洋石油,2016,36(1):52-55.
[4]景凤江,宋春.华海上凝析气藏烃类相态综合识别[J].中国海上油气,2009,21(5):316-323.
[5]吴健,胡向阳,郑香伟,等.北部湾盆地凝析油气藏综合识别方法[J].天然气地球科学,2015,26(3):495-503.
[6]袁士义,叶继根,孙志道.凝析气藏高效开发理论与实践[M].北京:石油工业出版社,2003.
[7]蒲庆南,夏欣,赵天沛.东海平湖油气田中高渗凝析气藏开发效果分析[J].海洋石油,2008,28(1):36-40.
[8]宫长利,杨树合,王哲,等.大港滩海复杂断块凝析气藏开发方案研究[J].天然气地球科学,2008,19(3):410-413.
[9]熊钰,刘江斌,何书梅,等.张海5井区复杂断块带油环凝析气藏开发技术界限研究[J].重庆科技学院学报,2011,13(4):1-3.
[10]李骞,李相方,郭平,等.吐哈气田凝析气井产能影响因素分析及预测[J].油气地质与采收率,2010,17(6):82-84.
[11]刘刚.气井携液临界流量计算新方法[J].断块油气田,2014,21(3):339-340.
[12]窦松江,冯小宁,李炼民.尼日尔G油田气顶油气藏开发策略研究[J].非常规油气,2015,2(5):34-37.
[13]张瀛,王兴明,冯金义,等.马西凝析气藏试井解释方法研究[J].非常规油气,2015,2(2):38-43.