A Study Of Microseismic Monitoring Technique And Application In Qinjiatun Oilfield

The knowing on the plane waterflood swept area and on the fracture growth state is an important work to the oilfield deve-lopment. Microseismic monitoring is one of better means to thewaterflood swept area on the present.Firstly, the geology,structure,reservoir , oilfield exploit-ing feature and plane contradiction which has been exposed aft-er waterflood exploiting of Qinjiatun Oilfield have been intro-duced in this research;Secondly, the theory of Microseismic flood frontal monitoring has been expounded detailedly.This research take well QK3-5 and QK8 of Qinjiatun Oilfield for instance, The microseismic datas hanve been handled from the gathering;descripted site monitoring and explanation results.The profile of waterflood frontal swept intensity of Qinjia-tun Oilfield has been described through the microseismic flood monitoring to twelve flood wells of Qinjiatun.This provided direct reference to evaluating flood condition of oilfield and to analyzing plane remaining oil. This research can direct next well network, injection relationship, adjusting water floo-ding regime and administering measures, and it builded the bas-is for enhancing exploiting level of oilfield further.