Development And Application Of High Temperature And High Pressure Multifunctional Displacement Experimental System

Zhanjiang Branch of CNOOC Ltd.has designed HTHP gas reservoirs in the western South China Sea and deepwater oi&gas reservoir as the main direction of the 12th Five-Year and 13th Five-Year blueprint,in order to cooperate the realization of the Second Leap of CNOOC Ltd,in recent years.By the end of the 13th Five-Year,HTHP gas production will account for half of the natural gas production of Zhanjiang Branch of CNOOC Ltd..Zhangjiang Experiment Center is relatively weak at development experiment and especially lacks in the ability to analyze the special core experiment.What is more,Zhangjiang Experiment Center is in short of high pressure experiment equipments and basic experimental data of HTHP.Zhanjiang Experiment Center has designed the development programming of HTHP experiment.Working with the Southwest Petroleum University,Zhangjiang Experiment Center has researched the multifunctional displacement system and has finished the design and optimization of the HTHP multifunctional displacement system Also,Zhangjiang Experiment Center has completed the functional test of the subassemblies.For the first time in CNOOC,Zhangjiang Experiment Center has developed the multifunctional displacement system with the temperature highest 200℃ and prsesure strongest 100 MPa.HTHP phase penetration test method,HTHP rock sensitivity test method and HTHP long core displacement test method have been established.Our multifunctional displacement system has been successfully used in the HTHP phase penetration test,HTHP rock sensitivity test and HTHP long core displacement test of HTHP gas field DF13-2 and the results have provided the technological support for the exploitation of this gas field,and also provided the evaluation of productivity.