一种基于压力梯度的凝析气井产水量计算方法  

A calculation method of condensate gas well water yield based on pressure gradient

作　　者：李洪 李治平[1,2] 王香增[3] 张亮 王才[4] 郭珍珍 

机构地区：[1]中国地质大学(北京)非常规天然气能源地质评价与开发工程北京市重点实验室,北京100083 [2]中国地质大学(北京)能源学院,北京100083 [3]陕西延长石油(集团)有限责任公司研究院,西安710075 [4]北京大学工学院,北京100871 [5]中国石油渤海钻探工程有限公司测井分公司,天津300280

出　　处：《中国科技论文》2017年第15期1792-1795,共4页China Sciencepaper

基　　金：北京市自然科学基金资助项目(3162026);"十三五"国家科技支撑计划重点项目(2017ZX05009005)

摘　　要：针对目前英买力气田气井井口压力较高,无法直接取样化验含水,主要通过两相分离器来计量产液量和产气量,而且装置取样位置受限,导致该方法成本较高,不能连续进行测量的问题,根据英买力气田的实际情况,提出了利用井筒压力梯度资料计算凝析气藏产水量的方法,即假设不同的产水量,通过Hagedown-Brown模型得到的井筒剖面压力值与实测值进行对比、分析,当精度达到要求后,此时对应的产水量即为所求值。YD2-1井井筒剖面压力的计算值与实测值十分吻合的结果验证了该方法的可靠性。Because of the high wellhead pressure of gas well in Yingmaili field, the engineers can not directly sample to test the water content and mainly use the two-phase separator to measure liquid production and gas production. However, due to the limi tation of the sampling position of the device, it always costs much, and the water production can,t be measured continuously, so a theory method is in urgent need of calculating the water production. According to the actual situation in Yingmaii gas field, the calculation method of water yield of the condensate gas reservoir with well-bore pressure gradient data is raised. Assuming differ ent water yields, the calculated pressure values with the Hagedown-Brown model and measured values are compared and ana lyzed. When the precision meets the requirements, the corresponding yield is what we need. The reliability of the method is verified by the results that the calculated values of the YD2-1wellbore profile pressure are in good agreement with the measured val ues.

关 键 词：凝析气藏 压力梯度 含水化验 产水量 

分 类 号：TE372[石油与天然气工程—油气田开发工程]