摘要
由于对气藏直定井温度剖面影响规律认识不清,导致基于分布式光纤温度监测(distributed temperature sensing,DTS)定量评价气藏直定井产出剖面仍十分困难。鉴于此,通过建立考虑多种微量热效应和非等温渗流的多产层气藏直定井温度剖面预测模型,模拟分析了多个单因素对多产层气藏直定井温度剖面的影响规律,通过正交试验分析,评价出了各单因素对多产层气藏直定井温度剖面的影响程度依次为:渗透率>产量>含水饱和度>井筒倾斜角>天然气相对密度>储层导热系数>井筒半径,确定了影响多产层气藏直定井温度剖面的主导因素为渗透率、产量和含水饱和度。建立的温度剖面预测模型及温度剖面主控因素的确定,为实现基于DTS定量解释气藏直定井产出剖面奠定了理论基础。
Due to unclear understanding of the impact of temperature profiles on gas reservoirs,it is still difficult to quantitatively evaluate the production profile of gas reservoirs based on distributed temperature sensing(DTS).In view of this,by establishing a temperature profile prediction model for multi production layer gas reservoirs considering various trace thermal effects and non isothermal seepage,the influence of multiple single factors on the temperature profile of multi production layer gas reservoirs was simulated and analyzed.Through orthogonal experimental analysis,the degree of influence of various single factors on the temperature profile of multi production gas reservoirs was evaluated as follows:permeability>production>water saturation>wellbore inclination angle>relative density of natural gas>reservoir thermal conductivity>wellbore radius.The dominant factors affecting the temperature profile of multi production gas reservoirs were determined to be permeability,production,and water saturation.The established temperature profile prediction model and the determination of the main control factors of the temperature profile have laid a theoretical foundation for the quantitative interpretation of gas reservoir production profiles based on DTS.
作者
马寒松
李海涛
罗红文
向雨行
刘文强
粟超
张琴
李颖
MA Han-song;LI Hai-tao;LUO Hong-wen;XIANG Yu-xing;LIU Wen-qiang;SU Chao;ZHANG Qin;LI Ying(State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,China;CNPC Logging Co.,Ltd.,Xi an 710077,China;Geological Exploration and Development Research Institute of CNPC Chuanqing Drilling Engineering Co.,Ltd.,Chengdu 610051,China)
出处
《科学技术与工程》
北大核心
2023年第33期14192-14200,共9页
Science Technology and Engineering
基金
中国石油科技创新基金项目(2022DQ02-0305)
中国博士后科学基金面上项目(2021M702721)
四川省自然科学基金青年基金(2022NSFSC0993)
国家自然科学基金中德合作交流项目(M0469)
国家自然科学基金面上项目(42272176)。
关键词
温度剖面
影响规律
温度剖面预测模型
气藏直定井
DTS
temperature profile
influence law
temperature profile prediction model
vertical well in gas reservoir
DTS
