1) Hole cleaning
井眼净化
1.
It is shown that this mud had excellent lubricity and hole cleaning capacity.
实验结果表明,该体系表现出良好的润滑防卡性和良好的井眼净化能力,抑制防塌能力强、不混油、处理剂配套、性能易调控、滤失量低、高黏度、高切力,泥饼薄而韧、光滑,泥饼摩阻系数控制在0。
2.
To monitor the hole-cleaning condition and provide guidance during drilling,A new approach is proposed to monitor the hole cleaning condition and calculate the height and position of cuttings bed in extended-reach-wells.
为适时监测井眼环空净化状况,结合国内外最新研究成果,建立了一套大位移井井眼净化监测和计算方法。
3.
Based on forces acting on cuttings and annular velocity distribution of solid-liquid flow in annu-lus, the computing model of minimum annular velocity is developed for describing cuttings rolling and suspension transportation, a soft ware for hole cleaning design and real time monitoring is programmed also.
根据大位移井中岩屑颗粒的受力分析结果,结合环空中固液两相流的流速分布规律,建立了岩屑滚动运移和悬浮运移时最小环空返速的计算模型,编制了井眼净化设计和实时监测软件,并应用于QHD32-6-A26h大位移井φ311。
2) Borehole cleaning
井眼净化
1.
The well was successfully completed through strict technical measures such as trajectory control, friction and torque and borehole cleaning.
通过在轨迹控制、摩阻与扭矩、井眼净化等方面采取合理严格的技术措施 ,顺利完井 ,为开发本东油田提供了一些宝贵的施工经验。
2.
In accordance with the characteristics of deviated wells and the strata in East Sichuan, this paper describes that compound emulsified and sulphonated drilling fluid was used in borehole cleaning, fric- tional drag control, anti-collapse, leakage prevention and stopping lost circulation.
本文针对川东定向斜井和地层特点介绍了使用复合乳化磺化钻井液的井眼净化、摩阻控制、防塌和防漏堵漏等技术。
3) hole cleanout
井眼净化
4) bore hole cleaning
井眼净化
5) bottom hole flushing
井底净化
1.
The authors consider circulation fluid in reserve circulation drilling as rigid body and establish the bottom hole flushing model based upon moment balance theory etc.
把反循环钻进中循环液体视为刚体 ,以力矩平衡等理论为依据 ,建立井底净化模型 ,对影响井底净化效果的各种因素如地层、钻头结构、工作规程、井底流场、压持效应和渗透规律等进行综合研究 ,推出最优净化条件 ,通过室内及野外试验进行验证。
6) clean drilling
净化钻井
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