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cementing technique
    DOUBLE-STAGE THREE-SECTIONAL CEMENTING TECHNIQUE IN WELL SHANKE-1
    鄯科1井二级三段固井工艺
    Applications of the Rotating-Liner Cementing Technique in Deep Wells
    旋转尾管固井工艺在深井中的应用
    Aiming at the casing deformation,fracturing and leak resulting from formation creep,leading to well status deteriorate,the cementing technique of dual combined casings,designed by Drilling Process Research Center in Huabei Petroleum Administration Bureau,was first used in Well 281 in Weicheng Oilfield.
    针对地下盐膏层蠕变导致油层套管变形、破漏 ,造成井况恶化的特点 ,中原油田在卫2 81井首次采用了华北油田钻井工艺研究所设计的双层组合套管固井工艺 ,实践证明该工艺对防止井况恶化是行之有效的。
    The new generation of high performance cementing materials include high performance lightweight slurries (HPLWS), conventional density high performance slurries (CDHPS), high density high performance slurries (HDHPS), and micromatrix cement. The performance optimization of the new cementing materials, and a new corresponding cementing technique, ultra-low speed squeezing technique are also presented in this paper. Keywords: high performance cement slurry;
    新一代高性能固井材料包括低密度高性能水泥浆、常规高性能水泥浆、高密度高性能水泥浆、微矩阵水泥和微细优化水泥,介绍了新型固井材料性能的优化设计以及与微细优化水泥相应的新的固井工艺——超低?
    In order to improve the drilling efficiency and decrease the whole well duration, we carry out some researches on drilling engineering, mud and cementing technique and provide the program and ideas which will be useful for the next operation in the future.
    为提高钻井效率,缩短建井周期,就钻井工程、泥浆及固井工艺等方面进行探讨,并提出下一步处理方案及建议。
    By adopting cement slurry system ZJ-2 of low fluid loss and zero water precipitation, combining the use of cementing technique of two-stage setting and double killing, the cementing job is smoothly carried out with good cementing quality.
    该井通过采用ZJ-2低失水、零析水水泥浆体系配合双凝双压固井工艺,固井施工顺利,全井主要封固段固井质量良好。
    The aim that casing-damaged wells are recovered may adopt by the second cementing technique with little casing, which pack and plug reservoir, hang little casing, then perforation again after cementing space between original casing and the little casing.
    利用小套管二次固井工艺,在因套管损坏而报废的油水井上,采取封堵、打通道措施,全井或部分悬挂小套管后,采取延时固井法封固环空,二次射孔投产,达到恢复油水井生产的目的。
    Through the completely and carefully surveying with the domestic and foreign cementing technology in horizontal wells, this paper introduces the cementing technique in horizontal and big - angle wells, the designing of cement slurry parameter, wellbore cleaning, casing centralizing, the new cementing technologies and equipments and its application on site. In order to improve the cementing technology and integrated benefit, these experiences can afford the engineering techniques on site for reference.
    对国内外水平井固井工艺技术进行了全面、细致的调研,介绍了国外水平井和大斜度井固井工艺、水平井和大斜度井水泥浆参数设计、井眼清洁、套管扶正、固井新技术、新工具等,以及现场应用和效果,可供现场工程技术人员借鉴,以提高国内水平井固井工艺技术和整体效益。
    In order to conquer technical problems arising from cementing liners in deep wells and thus improve deep-well cementing effectiveness, the rotating-liner cementing technique can be employed in such case.
    为解决深井尾管固井的技术难题和提高深井固井质量,深井尾管固井时可采用旋转尾管固井工艺
    This paper analyzes the principle improving mud displacement efficiency by rotating liner, presents the mechanism of liner hangers and advantages of this cementing technique, and proposes the required conditions and precautions for this technique.
    分析了旋转尾管固井工艺提高顶替效率的原理,介绍了尾管悬挂器的工作原理和旋转尾管固井的优点,提出了旋转尾管固井所需条件和注意事项。
    Its application in YK8 Well is introduced. The cementing practice indicates that employing this cementing technique can not only tackle technical problems resulted from slim annulus of liners but also improve cementing quality in deep wells.
    以YK8井为例介绍了旋转尾管固井工艺在深井中的应用情况,该井的固井实践表明,采用旋转尾管固井工艺既能解决尾管固井环空间隙小的技术难题,又能提高深井尾管固井质量。
    Based on this study,this paper analyzes the cement slurry,drilling fluid,flushing spacer fluid system and cementing technique and provided the reasonable drilling and cementing measure to comprehensively improve I and II interface shear intensity and cementing strength.
    并在此基础上,分析了水泥浆体系、钻井液体系、冲洗隔离液体系及注水泥工艺,提出了合理的钻井及固井工艺措施,以全面提高Ⅰ、Ⅱ界面的剪切及胶结强度。
 

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