高含水后期保持和提高油井压裂效果的途径

MAINTAINING AND IMPROVING THE RESULT OF OIL WELM FRACTURING AT THELATE PERIOD OF HIGH WATER CUT STAGE

保持油井压裂效果不降,是大庆喇、萨、杏油田“八五”期间“3、6、9、10”工程主要目标之一。几年来,油田已在大量油藏研究和工艺实践的基础上,逐步形成一套包括井层确定、压前培养、时机选择、工艺优选、压后配套措施及注水保护等在内的保持和提高油井压裂效果的方法。本文试图以高含水后期开采的喇嘛甸油田为例作一介绍,以供借鉴。

<ABSTRACT>: Maintaining the result of oil well fracturing is the main target of 'Engineering 3, 6, 9, 10'in the 'Eighth Five Year Plan' period in Lamadian, Saertu, Xingshugang oil fields. In recent years, based on numerous reservoir study and practice of technology, a set of methods of maintaining and improving the result of oil well fracturing has gradually been formed, including well layer determination, pre - fracturing preparation, time selection, technology optimization, post-fracturing completion measure and water injection protection etc. This paper attempts to provide an referential introduction by taking Lamadian oil field as an example which is developed at the late period of high water cut stage.