鄂尔多斯盆地浅层大位移水平井钻井液体系优选
投稿时间：2015-02-27  修订日期：2015-02-27  点此下载全文
引用本文：陶红胜,马振锋,杨全枝,等.鄂尔多斯盆地浅层大位移水平井钻井液体系优选[J].钻探工程,2015,42(9):1-4.
TAO Hong-sheng,MA Zhen-feng,YANG Quan-zhi,et al. Optimization of Drilling Fluid System for Shallow Extended reach Horizontal Well in Ordos Basin[J]. Drilling Engineering, 2015,42(9):1-4.
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作者单位E-mail
陶红胜 陕西延长石油（集团）有限责任公司研究院 365550993@qq.com 
马振锋* 陕西延长石油（集团）有限责任公司研究院 249690334@qq.com 
杨全枝 陕西延长石油（集团）有限责任公司研究院  
李红梅 陕西延长石油（集团）有限责任公司研究院  
赵毅 陕西延长石油（集团）有限责任公司研究院  
中文摘要:针对鄂尔多斯盆地浅层水平井钻井过程中的井壁稳定、井眼清洁、润滑减阻和储层保护的技术难题，通过分析储层的地质特征，在该区原用聚合物钻井液基础上，选择性加入MC-VIS、ABSN、纳米乳液和复合屏蔽暂堵剂，形成纳米乳液封堵钻井液体系，在保证施工安全的前提下，可将岩心渗透率恢复提高至8350%。通过七平1井的应用表明，纳米乳液封堵钻井液体系能够满足低渗透油层大位移水平井的钻井施工需求，为高效开发鄂尔多斯盆地浅层油气藏提供技术支持。
中文关键词:浅层大位移水平井  纳米乳液钻井液  低渗透  润滑性  井眼净化  储层保护  鄂尔多斯盆地
 
Optimization of Drilling Fluid System for Shallow Extended reach Horizontal Well in Ordos Basin
Abstract:In order to solve the hard technical difficulties of wellbore stability, borehole cleaning, lubricating & resistance reducing and reservoir protection for shallow horizontal well drilling in Ordos basin, by the analysis on the geological characteristics of the reservoir and based on the previous use of polymer drilling fluid, MC-VIS, ABSN, nano emulsion and composite shielding temporary plugging agent were selectively added to develop a nano emulsion plugging drilling fluid system. On the premise of safety drilling, the core permeability was restored up to 8350%. By the application in Qiping 1, it is showed that the nano emulsion plugging drilling fluid system can satisfy drilling construction requirements of shallow extended reach horizontal well in low permeability reservoir and provide technical support for efficient exploiting shallow reservoirs in Ordos.
keywords:shallow extended reach horizontal well  nano emulsion drilling fluid  low permeability  lubricity  hole cleaning  reservoir protection  Ordos basin
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