直流电场采油矿场试验

Field experiment of production by direct current electric field

胜利油田临盘采油厂采用直流电场在临64 -5井组进行了增油降水矿场试验。该技术以注水井为负极,以油井为正极,在油水井间施加一个直流电场,利用电化学原理使油、水的相渗透率发生变化,取得了增油降水效果。试验中临64 -5井日产油量由通电前的3 .8t上升到5 .8t,综合含水率由82 .3 %下降到72 .1%。

Direct current electric field is used to increase oil production and decrease water production in Lin 64-5 well group in Linpan oilfield of Shengli petroliferous province. This technology uses the water injection well as negative electrode,and use the oil well as positive electrode,a direct current electric field is brought between the two,it makes the oilwater phase permeability change by electrochemical principle. Then the result of increasing oil production and decreasing water production in Lin 64-5 well group is achieved. During the test,daily oil production increased from 3.8t to 5.8t, and total water cut decreased from 82.3% to 72.1% in Lin 64-5 well. Successful test proved the value of this technology in application.