长庆油田陇东区块漏失井溢流处置技术  

作　　者：李建磊 陈镇 付颀 

机构地区：[1]川庆钻探工程公司长庆钻井总公司

出　　处：《化工管理》2019年第21期209-210,共2页Chemical Engineering Management

摘　　要：陇东区块普遍受到先注后采的影响,注水压裂已经使目的层的孔隙度完全改变,因此水平井尤其是长水平段水平井的开采很容易遇到局部异常高压和易漏的情况,无形增加了溢流处置的难度,在这种开发模式下,特别是在老井区进行钻井施工时,我们需要对漏失井处置技术进行立项研究,文章就是对今年施工的溢流井进行梳理,对漏失井处置技术进行细化分析研究,找出漏失和溢流之间的相互关系和规律,总结出了动态平衡加重技术,特别适用于陇东区块漏失井的加重处置。Longdong Block of Changqing Oilfield is generally af. fected by injection followed by production. Water injection frac. turing has completely changed the porosity of the target forma. tion. Therefore, the exploitation of horizontal wells, especially those in the long horizontal section, is prone to local abnormal high pressure and leakability, which invisibly increases the difficul. ty of overflow disposal. In this development mode, especially in the old well area, when drilling, I am in charge of overflow dispos. al. We need to conduct a research on the disposal technology of lost circulation wells. This paper combs the overflow wells con. structed this year, makes a detailed analysis and Study on the dis. posal technology of lost circulation wells, finds out the relationship and regularity between leakage and overflow, and summarizes the dynamic balanced aggravation technology, which is especially suit. able for the disposal of lost circulation wells in Longdong block.

关 键 词：先注后采 孔隙度 异常高压 易漏 动态平衡 加重 

分 类 号：TE28[石油与天然气工程—油气井工程]