The deep gas wells of Qingshen gas field in Daqing are characterized by the great well depth, high bottom temperature, high bottom pressure and gas production with water.
大庆油田庆深气田的深层天然气井具有井深、井底温度高、井底压力大、气水同产等特点，前人的井底静压折算公式不能达到生产所需的精度。
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.
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。
During ultra deep well drilling, we will be confronted with high temperature, high pressure and complex produced fluid.
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。
Two difficult problems, ie: deep well and high pressure, should be treated in the application of thermal drive to the viscous oil encountered in Gaosheng oilfield.
用热采的方法开采高升油田的稠油，存在着井深、油层压力高两大技术难点。
JT888 can effectively prevent the dispersion at high temperature and high temperature thickening, suitable for deep well, high temperature, high pressure area.
JT888能有效地防止高温分散和高温增稠，适应于深井、高温、高压地区使用。
Hollow shaft type high pressure cooling system is used to solve the problem in deep drilling, as well as gun-drill with open groove, proper cutting consumption and single tool withdraw are applied.
笔者主要阐述了数控深孔钻床在使用枪钻进行深孔加工时工艺参数的选择，寻求最佳加工性能，以求达到快速加工、提高效率的目的。
Hollow shaft type high pressure cooling system is used to solve the problem in deep drilling, as well as gun-drill with open groove, proper cutting consumption and single tool withdraw are applied.
笔者主要阐述了数控深孔钻床在使用枪钻进行深孔加工时工艺参数的选择，寻求最佳加工性能，以求达到快速加工、提高效率的目的。
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