Application of Oil Extraction Technology in Jiefangqudong Oilfield
GAN Hua-wen;SUN Hong-hai;LIU Yong;CHAI Xiong;ZHANG Wen-xiang;LIU Tao;Development Department,Tarim Oilfiled Company;
Jiefangqudong oil is a short axis anticline oil and gas in Tarim Oilfield in Tabei Uplift in Lunnan Qianshan anticline on the southeast slope of large reservoirs. TII group is the main oil layer in Jiefangqudong oil production,and the average porosity is 23. 6%,the average penetration rate of416 m D. The reservoir space is mainly intergranular pore,and the intergranular dissolution pore the main part. At present,TII oil group has been in the late period of high water cut and low efficiency.To delay production decline and stabilize oil and water,we use the application of T oil group in-creased oil extract technology,which will be in high water cut reservoir with large pump replacement extract. This helped to realize three high water cut oil production in Jiefangqudong oilfield. The geological conditions of increasing oil extract technology is of high porosity and high permeability reservoir is better; the pressure to maintain the level of more than 80% and the periphery has the wide water; the reservoir water is in edge water. We summed up the best time to extract oil is when the moisture content is more than 90%.
【CateGory Index】： TE357