气体钻井装备的优化配置方案。
气体钻井井控设备配套方案。
井斜问题是气体钻井面临的十分复杂的难题。
The gas drilling well deviation question is the very complex difficult problem which the gas drilling faces.
通过研究，形成了一套气体钻井装备配套优化方案。
Through the research, an optimization program of gas drilling equipment package is formed.
简要介绍了气体钻井、泡沫钻井和套管钻井等特殊钻井技术。
Well logging technology and techniques for gas drilling, foam drilling and casing drilling are summarized and analyzed in this paper.
开展了液相欠平衡及气体钻井井壁稳定及井筒携岩能力研究。
The study work of wellbore stability and capacity to carry rock cutting during liquid UBD and gas drilling is developed.
最后选择适当的强度准则，形成气体钻井井壁稳定性分析模型系统。
Then by selecting appropriate strength criteria, the borehole stability analysis model for gas drilling can be set up.
这将为更深入地研究气体钻井钻柱冲蚀磨损工作提供了依据和参考。
All of those were expected to provide reference for further studying of erosion abrasion in gas drilling.
气体钻井由于其机械钻速快，能有效防止水敏性泥页岩坍塌，杜绝井漏。
The gas drilling technology is increasingly applied these days due to its high ROP, effective prevention of the cave-in of water-sensitive shales and the capability to eliminate lost circulations.
该方程的建立，为气体钻井过程中优化钻井技术的应用提供了理论基础。
The establishment of this ROP equation provides a theoretical basis for gas drilling optimization technology.
进一步说明不能用传统的达西公式计算气体钻井中低渗透地层液体侵入量。
It further proves that the traditional Darcy formulae cannot be used to calculate the liquid influx during gas drilling of low-permeability formations.
气体钻井的优点有：钻井效率高、有效保护油气层、防止井漏和黏附卡钻。
The advantages of gas drilling are: high drilling efficiency, effectively controlling formation damage, preventing from lost circulation and adhesive drill pipe sticking.
气体钻井过程中，调整钻井参数或者钻遇储层都会引起井内流体的瞬态流动。
During gas drilling, both the alteration of the drilling parameters and encountering the reservoir will cause the transient flow of wellbore fluid.
国内外对气体钻井井斜机理及控制方面研究较少，还没有形成系统的理论和技术。
At present the study on gas drilling in terms of borehole deviation mechanism and control method is very few and has not form a theory of large scale systems at home and aboard.
因此，研究气体螺杆钻具在井下的输出性能对水平井气体钻井有着非常重要的意义。
So the research on the output performance of the air PDM is of great significance for the gas drilling during the horizontal well drilling.
该研究结论与现场实际情况较为吻合，对气体钻井适应性评价具有重要的应用价值。
This research result agrees well with the actual gas drilling cases, being of great value in the evaluation of gas drilling adaptability.
采用气体钻井技术可在一定程度上解决上述问题，但气体钻井也受到多因素的制约。
These problems can be solved to use air drilling, but the use of air drilling also face restrictions created by many factors.
随着气体钻井数量的增加，钻具失效问题日益突出，已影响到气体钻井的安全和推广应用。
However, with the well number increasing, the drilling tool failure is outstanding gradually, which has safe effect and extends the application of air drilling.
结合满东2井氮气钻进的工程实践，验证了塔里木油田气体钻井装备配套优化方案的实用性。
Combined with the engineering practice of nitrogen gas well drilling in Mandong-2 well, the utility of optimization program of gas drilling equipment package of Tarim oilfield are verified.
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.
研究和现场试验表明，采用欠平衡钻井技术，尤其是气体钻井技术是钻井提速增效的有效途径。
It is showed by field and experimental that the underbanlanced drilling(UBD) and special gas drilling is the effective way to improve ROP and efficiency.
为保证井下安全，气体钻井常常不使用或少使用稳定器，此时钻具组合更易发生弯曲而引起井斜。
Stabilizer is not used or used seldom in gas drilling to ensure the downhole safety. At this time, bottom-hole assembly bends easily resulted in well deviation.
在油田气体钻井中使用KQC系列空气锤，解决了泥浆钻井在中硬以上地层中钻速慢、易井斜的难题。
KQC series of air hammers used in gas drilling can solve certain problems, such as lower ROP(Rate of Penetration) and well deviation, which occurred in mud drilling in above medium hard formation.
介绍了气体钻井计算模型的建立及其应用软件的编制，结合现场实践，对气体钻井理论模型进行了分析。
The paper introduces the establishment of calculating model for gas drilling and the programming of the applied software, and analyzes the model for gas drilling theory with field cases.
基于可压缩流体不稳定流动理论及地层流体渗流理论，建立了气体钻井过程中井筒瞬态流动的数学模型。
Based on the theory of unsteady flow of compressible fluid and the seepage theory of formation fluid, the mathematical model of the gas transient flow in the wellbore has been established.
以气体钻井过程中气体的稳态流动和在接单根过程中的瞬态流动为主要研究对象，运用有限差分方法求解。
Gas drilling in the course of the steady flow of gas and the next single course of the transient flow as the main study, the use of finite difference method to solve.
气体钻井技术作为我国当前及未来的石油钻探主力技术，气动冲击器是其能否实现有效钻进的关键设备之一。
Gas drilling technology as our current and future main oil drilling technology, pneumatic pneumatic is one of key equipments of it to determine achieved effective drilling.
井壁稳定问题就是气体钻井首先需要考虑的问题，它也是决定钻井过程中能否采用空气钻井技术的关键因素。
First, we must take Wellbore stability of the gas drilling into account, it is the key factor that determined whether the drilling process can use the Air-Drilling technology.
井壁稳定问题就是气体钻井首先需要考虑的问题，它也是决定钻井过程中能否采用空气钻井技术的关键因素。
First, we must take Wellbore stability of the gas drilling into account, it is the key factor that determined whether the drilling process can use the Air-Drilling technology.
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