Borehole problems and drilling accidents are liable to occur while drilling in western blocks in Tuha Oilfield, which is rich in salt lime beds.
吐哈油田西部各区块富含盐膏、膏质泥岩层，钻井时易发生复杂情况与事故。
The problems of low drilling efficiency and low core recovery due to borehole collapse were solved with pulling in casing while drilling through using combined BHA with casing.
采用组合钻具进行跟管钻进，通过随钻跟入的套管保护孔壁，解决因钻孔垮塌导致钻探效率和岩心采取率低等技术难题。
In the borehole electromagnetic wave techniques exist problems on "Imagereconstruction from incomplete projections data", the problems can be treated via "Squashing".
钻孔电磁波法有“不完全投影数据的重建图象”的问题，此问题可用压缩恢复法来弥补。
This paper analyses problems concerning the conventional continuous loading structure in open mining deep borehole blasting.
本文分析了露天矿深孔爆破长期沿用的连续装药结构存在的问题。
Finally, the present problems of the borehole penetrating method are analyzed; and the improvement proposals are put forward.
最后分析钻孔触探法存在的问题，并提出改进建议。
The application of inter borehole acoustic wave method to probing deep cracks in mass concrete can effectively solve the above mentioned problems.
而应用声波跨孔法进行大体积混凝土结构的深裂缝检测可有效地解决上述问题。
Very severe problems during drilling were circulation loss and borehole collapse because of formation fracture growing, and drilling operation was very difficult.
该气田地层裂缝发育，钻井过程中井漏和井塌问题非常严重，钻井作业十分困难。
The paper discussed common problems of pipe roof support engineering in soft ground and presented the optimization technology by tests on borehole construction methods with existing equipments.
在软弱土层管棚支护工程中，利用现有设备试验了多种成孔方法，优选出最佳成孔法，加快了工程进度。
During course of in situ stress measurement, some problems such as core discing, minification and caving of borehole due to horizontal stress are appeared, and their mechanism is studied.
在现场地应力测量过程中发现了岩芯饼裂、钻孔径缩和钻孔破碎塌孔等现象，分析了这些现象的力学机理。
During course of in situ stress measurement, some problems such as core discing, minification and caving of borehole due to horizontal stress are appeared, and their mechanism is studied.
在现场地应力测量过程中发现了岩芯饼裂、钻孔径缩和钻孔破碎塌孔等现象，分析了这些现象的力学机理。
应用推荐