设计调制式旋转导向钻井工具控制阀的关键问题之一是上盘阀高压孔的设计。
One of the key problems of designing the control valve of modulation rotary steering drilling tool is the design of high pressure hole of upside valve.
随着深部油气藏的勘探和开发，深井及超深井的数量大幅度增加，而深井超深井在高温高压条件下，窄安全密度窗口内的安全钻井是当前国内外都未能很好地解决的重大技术难题。
While under the condition of high temperature and high pressure, the safe drilling in thin safe density window is the technical difficulty that can not be solved well around the world.
但在超深井钻井过程中，面临地层高温、高压、产出流体相态复杂，这对环空携岩和安全是一个严峻的考验。
During ultra deep well drilling, we will be confronted with high temperature, high pressure and complex produced fluid.
钻井（水）龙头由于结构设计的原因，冲管盘根在钻井过程中不断磨损，特别是在高压泥浆的作用下，盘根密封常常被破坏。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design.
首次提出在深层高压低渗油藏采用分支井技术降低钻井成本、提高开发效益的调整手段。
A new adjustable way was developed first time which use cluster well to decrease drilling cost and increase benefit in deep imbedded, low permeability, high pressure reservoir.
研究了用废腈纶经高压釜中水解制备油田钻井泥浆降失水剂的方法，并进行了性能试验。
Methods of preparation of a oil field drilling mud water - loss control additive with waste PAN fiber hydrolyzed at high pressure had been studied and had tested its properties.
初步实践表明，负压钻井技术完全适用于高压低渗地层和低压易漏地层，其效果明显。
The preliminary practices show that underbalanced pressure drilling is completely fit to high pressure and low permeability as well as low pressure and leakage formations.
在高压条件下，通过曲柄连杆机构的变速运动实现钻井泵动力的传递。
Through the crank link system in high-pressured condition of variable speed movement with drilling pump power transfer.
异常高压气藏经过长时间开采后，地层压力通常会有大幅度的下降，有可能满足气体钻井需要。
As for the abnormally high pressure gas reservoirs the formation pressure will often decrease remarkably after long period of development, so the gas drilling technology can be adopted.
自进式钻头带动为其提供高压水动力的特制胶管向前连续钻井。
The self-feeding bit carries the special rubber tube that provides high-pressure hydrodynamics for the bit to drill continuously.
在高温高压气井钻井过程中，对地层压力随钻监测精度要求非常高。
During drilling in high-temperature and high-pressure gas well, the accuracy request of the formation pressure inspection is very high.
钻井水龙头由于结构设计的原因，冲管盘根在钻井过程中不断磨损，特别是在高压泥浆的作用下，盘根密封常常被破坏。
The wash pipe packing of drilling swivel showed wear-and-tear continually in drilling process due to its structural design. The packing assembly was often torn by high pressure mud.
分析表明，高压高温钻井、深井超深井钻井、特殊工艺钻井及三维可控与可视化钻井技术将是2 1世纪最重要的和最具发展前景的钻井技术系列。
The merits of down-hole motor drilling in both rotary and sliding modes are described. Some important drilling technologies in the 21st century, including high pressure and high temperature (HPH…
超高压射流辅助机械破岩钻井是提高深井钻井速度的一项前沿技术，关键技术包括井下增压器、超高压射流辅助破岩机理和钻头、超高压射流钻井参数和工艺等。
Ultra-high pressure water jet assisted mechanical drilling is known as one of the advanced and promising technology to increase drilling rate for deep oil and gas wells.
该设备采用高压射流钻井工艺，具有钻进效率高、钻具结构简单、设计合理等特点。在两次现场试验中，成功地实钻了三眼定向孔。
The equipment applies high voltage jet drilling process, with characteristics of high drilling efficiency , simple structural drilling tool and reasonable design.
提出开发特殊螺纹接头套管，以适应我国西部高压深井、超深井以及水平井钻井的要求。
This paper put forward that it is tme to develop special thread for casing to meet the requirement of hi-pressure, extra deep and horizontal Wells.
同时，旋转导向钻井工具接收由地面发出的指令，并通过稳定平台单元调控工作液来控制分配单元中的上盘阀高压孔的位置。
The unit for controlling and assigning working liquid takes the filtered mud as the working liquid distributed in three mud pipes in turn.
同时，旋转导向钻井工具接收由地面发出的指令，并通过稳定平台单元调控工作液来控制分配单元中的上盘阀高压孔的位置。
The unit for controlling and assigning working liquid takes the filtered mud as the working liquid distributed in three mud pipes in turn.
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