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cementing technology
    Two-stage Cementing Technology in Wulong-1 Well Using Low Density MTC Drilling Pump
    乌龙1井低密度MTC钻井泵双级固井工艺
    APPLICATION OF LINER CEMENTING TECHNOLOGY IN HORIZONTAL WELL BP1
    尾管固井工艺在水平井BP1井的应用
    Optimization and control for completion pressure system and cementing technology of adjustment wells
    调整井完井压力系统及固井工艺的优化与控制
    The cementing quality between these two casings may be ensured by applying 101.6mm casing without collar and casing centralizer and delayed cementing technology.
    该工艺采用10 1.6mm无接箍套管及套管扶正器,并应用延迟固井工艺,确保了13 9.7mm和10 1.6mm套管间的固井质量。
    Cementing Technology Using the Method of "Running the Drill Pipe into the Big Diameeter Casing's Interior"
    大套管内插管法注水泥固井工艺
    LINER INNER PIPE CEMENTING TECHNOLOGY
    尾管插管固井工艺
    Application of delayed cementing technology by small diameter casing to casing failure well with long intervals
    小直径套管延迟固井工艺在长井段套损井中的应用
    DRILLING LINER CEMENTING TECHNOLOGY IN DEEP AND HIGH ANGLE WELL
    深井、大斜度井尾管悬挂固井工艺
    Contrasting MTC technique with tradi-tional cementing technology, the advantages of MTC technique are referred to success-ful cementing,lower cost and preventing environmental pollution of drilling fluid The new dispersants developed by us can be used to design MTC slurries.
    与传统的固井工艺相比,能显著提高环空顶替效率,降低成本,同时还可解决钻井废泥浆对环境造成的污染问题。
    The characteristics of cementing technology determined that the highest point of temperature of cement slurry that returned to the annulus was in the certain distance away from the bottomhole instead of bottomhole reservoirs.
    再由于固井工艺的特点,决定了返至环空水泥浆的温度最高点不在井底油层段,而在距井底一定距离的地方。
    Delayed cementing technology is mainly used for cement ing slim holes, wells with small annular space and some special wells.
    延迟固井技术主要用在小间隙、窄环空井眼和一些特殊井的固井工艺中。
    In completion technology measures,the well adopts hole reaming technology,liner two-plug cementing technology,disperse cement slurry system,floating displacement cementing technology,flush joint casing and so on.
    该井在完井工艺措施上采用扩孔工艺、尾管双塞固井工艺、分散性水泥浆体系、漂浮顶替固井工艺、无接箍套管等技术。
    Floating displacement cementing technology and flush joint casing technology are the first application in sidetracking well of Dagang Oilfield.
    漂浮顶替固井工艺、无接箍套管工艺技术是首次应用在大港油田侧钻井上。
    Stage cementing technology and channeling control, lost circulation prevention cement system with three density and three setting time values have been used in three wells in Ansai.
    3口井的固井实践证明,该套固井工艺切实可行,固井水泥浆体系有利于气井固井施工,保证了固井质量。
    Factors causing the poor cementing quality are investigate by finite element simulation calculating and physical modeling test, and such tool and technologies as casing centralizer, time-delay cementing technology, back-inserting hydraulic liner hanger are developed. Compared with the conventional cementing technology in the same condition, good cementing quality improved by 29%.
    通过有限元模拟计算和物理模型仿真试验研究分析了小井眼固井质量差的原因 ,并针对性地开发应用了套管扶正器、延迟固井水泥浆技术、回插式液压尾管悬挂器固井工艺 ,与同等条件下常规固井技术相比 ,固井质量优良率提高 2 9个百分点。
    The main factors affecting exploratory well cementing quality were investigated, and aimed at solving the cementing problems in exploratory well drilling in Shengli Oilfield, a set of cementing technology was developed based on the cementing techniques and cement slurry technology, and was successfully applied in Shengli Oilfield.
    针对胜利油田探井作业的实际情况 ,从井径扩大率、油气上窜速度、探井比例、封固段长度和扶正器数量等方面分析了影响探井固井质量的主要因素 ,兼顾固井工艺及水泥浆技术研究出一套适应胜利油田实际情况的固井工艺 ,并在实践中得到了应用。
    In the light of the serious casing failure problems in oil/gas well of Zhongyuan Oilfield, the conventional workover technology can't repair long distance damaged casing in the deep well . So, the research of 101.6 casing delayed cementing technology was carried out. This technique applied 101.6 extreme-line casing, casing centralizer and delayed cementing technology to ensure the cementing quality between 139.5 and 101.6 casing.
    针对中原油田油水井套管损坏严重,常规大修修套工艺难以修复套管长距离多处损坏的油水井,应用了φ101.6无接箍套管、套管扶正器,并应用了延迟固井工艺,确保了φ101.6套管间的固井质量,取得了良好的技术经济效益。
    Since 2000 Zhongyuan Oil Field puts the casing cutting sidetrack drilling technique completely into practice, well completion and well cementing technology gain new development and improvement and obtain good result. The success ratio of the total amount 267 wells is 98.5%, the ratio of both good wellbore quality and good cementing quality is over 80%.
    中原油田自2000年全面实施套管开窗侧钻技术以来,完井固井工艺得到了完善,取得了较好的效果,累计施工267口井,成功率98.5%,井身质量和固井质量优良率均超过80%。
    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。
    Through the cementing technology research,experiment and field application,a good cement slurry system and cementing technology suitable for alkali well are selected,which can solve the problems as irregular borehole diameter and slurry contamination,etc. After applied in field,cementing quality is effectively improved,the production life for alkali well is prolonged with a good economic and social benefit.
    通过对固井技术研究、室内实验和现场施工应用,优选出了适用碱井固井的水泥浆体系和固井工艺,较好地解决了碱井井径不规则、碱对水泥浆污染、碱井水泥浆返高不够等问题,有效地提高了碱井固井质量,延长了碱井开采寿命。
 

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