水平井排水采气工艺模拟试验系统开发与应用  

Development and Application of Simulation and Experimental System for Drainage and Gas Production in Horizontal Wells

作　　者：吴简 王祖文[1] 李大维 田军[1] 张顺元 谭均龙 Wu Jian;Wang Zuwen;Li Dawei;Tian Jun;Zhang Shunyuan;Tan Junlong(Changqing Downhole Technology Operation Company,Chuanqing Drilling Engineering Company,CNPC,Xi'an 710000,Shaanxi;Overseas Institute of CNPC Engineering Technology R&D Company Limited,Beijing 102206;Henan Drilling Company,CNPC North China Petroleum Engineering Co.Ltd.,Nanyang 473132,Henan)

机构地区：[1]中石油川庆钻探工程有限公司长庆井下技术作业公司,陕西西安710000 [2]中国石油工程技术研究院有限公司海外所,北京102206 [3]中石化华北石油工程有限公司河南钻井分公司,河南南阳473132

出　　处：《长江大学学报（自然科学版）》2019年第9期58-62,I0004,共6页Journal of Yangtze University(Natural Science Edition)

基　　金：国家科技重大专项(2017ZX05023)

摘　　要：针对水平井排水采气工艺缺乏必要的试验平台而无法有效实现参数优化与效果验证的问题,开发了水平井排水采气工艺模拟试验系统,该系统主要包括试验井系统、地面混合-分离-计量系统、井下多点直读监测系统、井筒流体解释系统等。利用智能化的测控系统及解释,及时掌握运行参数,分析试验过程中各参数随时间变化的规律,对试验所引起的井下温度及压力的变化实现自动测量、同步采集。该系统有利于开展理论研究及接近工况条件下的工艺性能评价、工艺模拟试验,提升了水平井排水采气工艺技术水平。Aiming at the problem that drainage and gas production technology of horizontal wells lack necessary test platform and can not effectively realize parameter optimization and effect verification,a simulation test system of drainage and gas production technology in horizontal wells is developed.The system mainly includes test well system,downhole multi-point test system,precise surface gas-water injection system,flowback fluid separation and measurement,recycling system,wellbore fluid interpretation system and video monitoring system.An intelligent measurement and control system and interpretation is used for controlling the operation parameters in time,analyzing the law of variation of parameters with time in the test process,and realizing automatic measurement and synchronous acquisition of temperature and pressure changes caused by the test,which is beneficial for theoretical research and evaluation of process performance and technology under conditions close to working conditions.The simulation test provides an effective means for the simulation and engineering test of gas well drainage and gas production technology,it greatly shortens the development process and improves the technical level of horizontal well drainage and gas production technology.

关 键 词：水平井 排水采气 测控系统 解释系统 

分 类 号：TE355.3[石油与天然气工程—油气田开发工程]