塔里木盆地沙雅隆起轮台凝析气藏气井见水时间预测

Prediction of water breakthrough time for gas well in Luntai condensate gas field, Shaya uplift, Tarim Basin

王利刚 杨小腾 金朝康 吕晶 张奎

Wang Ligang Yang Xiaoteng Jin Zhaokang Lü Jing Zhang Kui

中国石油化工股份有限公司 西北油田分公司 雅克拉采气厂,新疆 库车 842017

YaKeLa Gas Production Plant, SINOPEC Northwest Oilfield Company, Kuqa, Xinjiang 842017, China

轮台气藏是位于塔里木盆地沙雅隆起雅克拉断凸东段的底水凝析气藏，气藏投入开发后气井见水严重，预测气井见水时间对开发有重要指导意义。基于Sobocinaki-Cornelius方法，利用已见水井数据，校正无因次锥高与无因次时间的相关关系式。通过校正后的关系式，计算已见水井L5井的见水时间与实际见水时间的误差为9.24%；计算出未见水井L2井见水时间为12年，并对该结果合理性做了分析。

Locating in the eastern Yakela fault of the Shaya uplift of the Tarim Basin, the Luntai gas pool is a condensate gas pool with bottom water. Water breaks through severely since production; hence the accurate prediction of water breakthrough time is critical for guiding development. Based on data from watered well, by means of Sobocinaki-Cornelius method, the relationship between dimensionless coning height and dimensionless coning time is corrected. The error between predicted and actual water breakthrough times in watered well L5 is 9.24%. The water breakthrough time in well L2 is predicted as 12 years, and the rationality of the result is analyzed.

https://doi.org/10.11781/sysydz2013S1012