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er lian you tian ba yin du lan di qu fang suo fang ka zuan jing ye ji shu
Author(s): 
Pages: 62-63
Year: Issue:  6
Journal: DRILLING FLUID & COMPLETION FLUID

Keyword:  钻井液井眼稳定防缩径防卡;
Abstract: 二连油田巴音都兰地区赛汗组~腾格尔组地层之间,主要岩性为粉砂岩、砂砾岩和砂泥岩互层.砂砾层渗透性强;泥岩段富含蒙脱石,水敏性强,施工过程中易发生缩径、拔活塞、大段划眼、卡钻等复杂情况.通过优选钻井液配方,调整钻井液维护处理方案,及时并保量地加入FT-103防塌剂和SMP高温高压降滤失剂,提高了钻井液抑制性,改善了泥饼质量;同时,提高钻井液四级净化设备的使用,配合相应的工程技术措施,使缩径拔活塞现象明显减少,平均机械钻速由原来的10.12提高到11.37 m/h,复杂事故的时效由0.63%降为0,完井电测一次成功率由88%提高到92%.该钻井液防缩防卡技术能够满足巴音都兰地区的钻井需要.
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