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- Many pressure dominated testing valve is through pumping of relieving annulus pressure to realize open or shut down hole test valve and keep annulus pressure for certain all the time. 许多种压控测试阀均是通过环空加泵压打开,泄掉泵压关闭,开井过程中环空始终保持一定的开启压力。
- Considering plate outrunning at bridge head of Jingzhu expressway,sleeve valve pipe grouting technology is put forward. 结合京珠高速公路桥头搭板脱空实际情况,提出采用"袖阀管"灌浆技术进行处治。
- The locking mechanism is made up of an inner hole sleeve inside which multiple round leaf blades and round spacers are reciprocally spaced and kinetically sheathed in the blade cases. 该锁芯机构由多个圆形叶片和多个圆形隔片相互间隔活动叠装在叶片套的内孔套筒中构成。
- Oil and Gas Reservoir Model for Multiplayer Channeling and Dynamic Monitor Down Hole Pressure. 多层窜流油气藏模型及井底压力动态
- Oriented case overshot for sidetrack drilling tech is a main component in down hole work-over operation. 定向套管开窗侧钻技术已成为井下大修作业的重要组成部分。
- MDT sampling is a new type of down hole PVT oil and gas sampling method during DST. MDT取样是在中途测试阶段进行的一种新型井下PVT油气取样方法。
- All drilling tubulars and down hole tools, including drill pipe, drill collars. Subs, crossovers, fishing tools. etc. 所有的钻井管柱和井下工具,包括钻杆钻铤、接头、配合接头和打捞工具等。
- Technical features,main requirements and process flow of sleeve valve barrel grouting method are described with the field cases of the method in grouting injection reinforcement,permeability proof and leakage treatment in china. 介绍了袖阀管注浆工法的特点、主要技术要求和施工工艺流程，以及该方法在国内注浆加固、防渗、堵漏施工中的应用实例。
- A lot of lab study and test have been done to the problems of bad reliability and short life-span for traditional slip-type down hole chock. 针对传统卡瓦式井下节流器的“圆柱”式胶简存在可靠性差、寿命短的问题,进行了大量的室内研究实验。
- Abstract: Technical features,main requirements and process flow of sleeve valve barrel grouting method are described with the field cases of the method in grouting injection reinforcement,permeability proof and leakage treatment in china. 文摘:介绍了袖阀管注浆工法的特点、主要技术要求和施工工艺流程，以及该方法在国内注浆加固、防渗、堵漏施工中的应用实例。
- To the problems occurring at using down hole mechanical sample n oil and gas wells, aptitude microelectronic high pressure sample has been studied. 针对油气井井下机械取样器在使用过程中出现的问题,研究开发出了智能型微电子高压物性取样器。
- Information transmission between ground and down hole is the of key the closed-loop control system of wellbore trajectory. 地面与井下的信息传输是井眼轨道自动闭环控制的核心。
- Designed for highly abrasive applications, the Type A Double Wall Sleeve Valve outlasts even stellated V-Ball valves and metal seated valves on abrasive slurries. 型双层套管夹管阀专用于具有很高磨损性的流体介质应用场合，当应用在研磨泥浆上时，其使用寿命甚至比星状V形球阀和金属阀座阀门更长更耐用。
- The down hole decentralized gas anchor is a kind of gas separator, the intake ports of which are located on the inner wall of the casing. 偏心气锚是指在弓形弹簧的作用下,将气锚的吸入口置于套管内壁附近的一种油气分离装置。
- This paper presents a instrument which can diagnoses the down hole failure with computer system,and describes the design of its construction and applications. 这里介绍了一种采用计算机系统对井下故障进行诊断的仪器，叙述了仪器的设计结构和应用效果。
- Abstract:Through an engineering practice, the application of SDDC (Super Down Hole Dynamic Compaction) on consolidating the mixed backfilling and high backfilling it introduced. [摘要]通过工程实例,介绍了孔内深层强夯技术在加固杂填土和高填方土中的应用。
- sleeve valve type hydraulic self-sealing coupling 套管滑阀式液压自封接头
- Hole angle should not exceed 15 degrees any where in the hole unless down hole geological conditions induce such deviation, such as acute fault intersections. 井斜角在井眼任何地方不应超过15度，除非井下地质条件引发了此种偏离，如严重的断层交叉。
- By inputting DPT down hole electronic gauge in acid and fractured string to measure pressure and temperature on real time and assembly analyzed this data with monitoring press. 该项技术是通过在酸压管柱中下入DPT井下压力计,进行井底压力和温度实时监测,将该项资料与井口监测压力组合分析,可实现不同工作液摩阻参数、酸压效果的系统评价。
- sleeve valve tube grouting method 袖阀管灌浆法
