There are two problems in foam drilling.
泡沫钻进中有两个问题有待解决。
While drilling in arid water shortage area or in thief zones pump pressurized foam drilling technology may used in wire-line coring.
在干旱缺水矿区或漏失地层中钻孔时，可选择水泵增压装置泡沫钻进工艺用于金钢石钻进绳索取心。
Well logging technology and techniques for gas drilling, foam drilling and casing drilling are summarized and analyzed in this paper.
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。
So, some countermeasures should be taken. New drilling technologies will be introduced including wash boring and micro-foam drilling.
对此，提出如下治理对策：采用新的钻井工艺，引进清水强钻和微泡沫钻井技术；
The article analyses the technique superiority and social economic meanings of the air-foam drilling on the basis of the studying to productive experiment.
基于实钻研究，分析空气泡沫钻进技术在地质岩心钻探中应用的技术优势和社会经济意义；
Based on the merit of foam, a new drilling method is put forward, that is the foam drilling technique of deep well applied in drought and scarce water areas.
依据泡沫的优点，提出了在干旱缺水地区采用深水井泡沫钻进技术的钻探新方法。
The driller adopts truck power and technical method of foam drilling, which solves the problems of deficiency of water source and electrical source in field drilling work.
本文介绍在野外钻探作业中车载钻机的设计思路，该钻机采用汽车动力和泡沫钻进的工艺方法，解决了野外钻探作业中电源与水源的缺乏问题。
The driller adopts truck power and technical method of foam drilling, which solves the problems of deficiency of water source and electrical source in field drilling work.
依据泡沫的优点 ，提出了在干旱缺水地区采用深水井泡沫钻进技术的钻探新方法。
The stability of viscous foam in dealing with large water invasion and effectively improving solids carrying capacity further promotes the application of underbalanced foam drilling.
粘稠泡沫在对付大量水侵和有效改进岩屑携带能力方面的稳定性，进一步促进了欠平衡泡沫钻井的应用。
It mainly has two parts as follows: theory research of foamed drilling fluids, and practice achievements in foam and foamed drilling technology.
论文主要包括两大部分：一是泡沫流体理论研究，二是泡沫和泡沫钻进技术的实践成果。
Because the temperature and pressure are various in different well depth, and the foam fluid rheology change with well depth, it is difficult to determine the foam fluid rheology during drilling.
石油钻井过程中，由于井内温度、压力随井深不断地变化，在不同的井深处泡沫流体的流变性会发生明显的变化，给确定泡沫流变性带来了一定的困难。
In a construction of water source well in Zhangzi County, Shanxi, we used available 7/9 air compressor and TB850/50 slurry pump, and foam pressurized drilling technique.
在山西长子县某水源井施工中，利用现有7/9压风机与TB850/50泥浆泵设备，采用泡沫增压钻进技术进行钻探。
Through laboratory tests, high quality formula of C12 foam mud was optimized, which made the drilling construction successful in serious fracture leakage formation.
通过大量的室内试验，优选出c 12泡沫泥浆的优质配方，现场施工中顺利解决了强裂隙漏失地层中的钻进问题。
The aerated foam mud fluids can used in negative drilling, and enlarge the life of drilling bits for its low density, and low sap pressure.
充气泡沫泥浆由于比重低，液柱压力低，实现了负压钻进，能大幅度提高机械钻进，延长钻头寿命。
The principle of reaching balance drilling and under balanced drilling using foam mud in water well drilling in Karst formation was presented.
分析了岩溶地层水文水井施工中，泡沫实现平衡压力或欠平衡压力钻井的原理及影响泡沫钻井有效井眼压力的因素。
With the particular advantages foam fluid drilling has been the important proportion of underbalanced drilling.
由于其独特的优势，泡沫流体钻井已成为欠平衡钻井系列技术中的重要组成部分。
The application of foam fluid in drilling, well completion and production in China oil fields in recent years is summarized.
对近几年来我国油田在钻井、完井和采油方面应用泡沫流体的情况作了综述。
After circulating 15 times the foam character still can fill the actual requirements of on-site drilling.
循环15次后泡沫性能仍然满足泡沫钻井现场的施工要求。
The models developed in this paper can be used for the theoretical design of foam underbalanced drilling and workover and for the optimization of the operation parameters.
本文建立的模型可以用于泡沫欠平衡钻井修井理论设计、施工参数优化。
Use of foam fluid for under balance drilling is a...
利用泡沫流体进行欠平衡钻井，是一种较安全的钻井技术。
Use of foam fluid for under balance drilling is a...
利用泡沫流体进行欠平衡钻井，是一种较安全的钻井技术。
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