摘要
针对塔里木油田YML凝析气田持续、经济和高效开发的需求,提出适用于YML地区生产测井产出剖面解释方法。通过视速度与持率结合判断井下流体,认为研究区井下流型多为环雾流。提出了大管径套管流体流动速度剖面计算方法和适用于研究地区PVT物性参数计算公式,针对凝析气藏的特点提出天然气偏差因子、体积系数和相态图进行解释。在划分井下流型、建立主要参数计算模型和选择测井解释模型后,建立产气剖面解释模型,然后对研究区的凝析气井进行全井段逐点处理。解决了常用解释模型不能计算井下滞留、回流问题,与生产资料对比,符合率高,有很好的应用效果。
In order to meet continuous,economical and efficient development in YML condensate field,a logging production profile interpretation model is proposed for production in the YML area.By combining apparent rate with holdup to judge downhole fluid,it is believed that the downhole flow pattern in the study area is almost an annular fog flow.Then a calculation method for the fluid flow rate profile in the large-diameter casing string and the formula for calculating PVT parameters,as well as deviation factors,volume coefficients and phase diagrams for interpreting the production profile of natural gas are proposed according to the characteristics of condensate gas reservoir in the study area.Finally after classifying the downhole flow patterns and selecting main parameters calculating models and logging interpretation models,a gas production profile interpretation model is built and the condensate gas wells in the study area are processed point by point in whole well intervals.This method solves problems like downhole retention and backflow,which cannot be calculated by a conventional interpretation model.The result is very consistent with actual production data,indicating the method having a good application effect.
作者
余鉴桥
刘红岐
郭永红
张帆
YU Jianqiao;LIU Hongqi;GUO Yonghong;ZHANG Fan(School of Earth Science and Technology, Southwest Petroleum University, Chengdu, Sichuan 610500, China;Tarim Branch, China Petroleum Logging CO. LTD., Korla, Xinjiang 841000, China;Youxin Exploration and Development Service Company, Huabei Oilfield, Renqiu, Hebei 062552, China)
出处
《测井技术》
CAS
2020年第2期209-214,共6页
Well Logging Technology
关键词
生产测井
凝析气
产出剖面
PVT参数
相态图
production logging
condensate gas
production profile
PVT parameter
phase diagram
