海上稠油热采井微差井温测试技术  

Differential well temperature testing technology for offshore heavy oil thermal recovery wells

作　　者：顾启林[1] 孙永涛[1] 马增华[1] 冯祥[1] 赵晓 李友平 GU Qilin;SUN Yongtao;MA Zenghua;FENG Xiang;ZHAO Xiao;LI Youping(Oilfield and Production Research Institute of COSL,Tianjin 300459,China;Petroleum Engineering Technology Research Institute,SINOPEC Shengli Oilfield Company,Dongying,Shandong 257000,China)

机构地区：[1]中海油田服务股份有限公司油田生产研究院,天津300459 [2]中国石化胜利油田分公司石油工程技术研究院,山东东营257000

出　　处：《油气井测试》2018年第5期73-78,共6页Well Testing

基　　金：国家科技重大专项"大型油气田及煤层气开发"子课题"规模化多元热流体热采工程技术示范"(2016ZX05058-003-009)

摘　　要：海上稠油热采井多为水平井,油藏非均质性强,多轮次吞吐出现气窜,水平段动用不均衡,热采效果变差。热采井微差井温测试技术利用油管或者连续油管将微差井温测试仪下入热采井水平段,对水平段进行温度、压力测试,然后通过吸汽剖面分析方法和数值模拟分析方法对测试数据进行解释,分析水平段的吸汽和动用情况。渤海某油田热采水平井X1井应用该技术成功录取了水平段的温度、压力数据,认识到水平段的吸汽情况及动用程度均呈现出"前端<中部<末端"的三段式分布规律,并根据测试分析结果,优化注汽方案,提出优化注汽管柱结构,水平段分段、选段注汽以及末端堵调的下步措施建议。该技术为海上稠油热采水平井提供了有效的测试和分析手段。Most of the offshore heavy oil thermal recovery wells are horizontal wells,which have the following characteristics:the strong reservoir heterogeneity,the gas channeling after multiple cyclic steam stimulation,and the uneven utilization of reservoirs in horizontal sections,which leads to low thermal recovery.In order to solve these problems,the DTEM test technology of thermal recovery wells is used to test the temperature and pressure of the horizontal section.Then,based on the steam injection profile analysis and numerical simulation analysis,the test data is interpreted to analyze the steam injection and utilization of the horizontal section.This technology provides an effective test and analysis method for offshore heavy oil thermal recovery horizontal wells.Taking the well X1 of the thermal recovery horizontal well in an oilfield in Bohai as an example,after applying this technology,the well successfully recorded the temperature and pressure data of the horizontal section,based on that it is found that both of the steam injection and utilization degree of the horizontal section showed a three-stage distribution law,that is,the end of the horizontal section is the best,the middle is the second,and the front end is the worst.This conclusion,combined with the test analysis results,provides a reference for the steam injection plan and the optimization of the steam injection tubular structure.It also provides suggestions for the stages of the horizontal section,the selection of the steam injection position and the next step of the terminal plugging-control.

关 键 词：海上稠油 热采井 微差井温测试仪 温度测试 压力测试 吸汽剖面 数值模拟 

分 类 号：TE353[石油与天然气工程—油气田开发工程]