deep drilling

Lost circulation is one of the most common and complex events in deep well and ultra deep drilling.

In the process of hot dry rock(HDR) geothermal energy development, the first issue to be resolved is deep drilling.

The chip can withstand high-temperatures and be used in aircraft engines or in deep drilling operations.

The safety problems of ultra-deep drilling rig will result in very serious personal and property losses.

Formate brines are especially fit for deep drilling and the environmentally sensitive areas.

Deep drilling poses particular problems of high pressure and temperature.

Ultra-deep drilling rigs with heavy load, high derrick, are more easily distorted because of vibration than conventional drilling rigs.

The difficulties of deep drilling in Xujiaweizi test in situ and achievements were introduced in details.

And grilled decals, spray, frost, glass and other deep-drilling process.

By the first century BC the Chinese had developed the technology for deep drilling boreholes.

Deep and ultra-deep drilling and the rapid scale development is the most important means for this approach.

And it is used successfully in shield tunneling, horizontal drilling, deep drilling, slotted walls and bore piles construction projects.

Study on Deformation and Load Distribution Law of Marine Riser for Offshore Deep Drilling

Technical factors affecting deep drilling speed in carbonate reservoirs of east Sichuan and treatment strategy

it utilizes the technique of pressure reduction automatic deep drilling to ensure pore forming ' s verticality

The Position-changeable Inner Nail Disposal Deep Drilling Process System Analysis

Effective Hydraulic Ways Promise Higher Penetration Rate for Deep Drilling

Quiet, good learning calligraphy, was quite deep drilling;

Discussion on Deep Drilling Techniques and the Economic Evaluations

Deepwater Horizon: Drilling deep, drilling dumb

Research Deep Drilling Technique of Gold Mine in Small Qinling Mountains

High-precision deep drilling with ultrashort pulses

Dynamics Analysis of Marine Riser for Offshore Deep Drilling

Measures prevent deviation of deep drilling and test method

Deep Drilling Techniques in Qianmiqiao Qianshan Structure

The experiment on deep drilling control of the lathe

Now change to the examination system to change, the difficulty getting higher and higher, "Wing, " the more the more deep drilling;

steel wire ropes for deep drilling equipment

high-shifting truck-mounted drilling rig has achieved seriation of 1000-9000m deep drilling capacity;

Influence of Structure of Rock Mass on Deep Drilling Explosion in Surface Mining

Ultra-deep drilling rig;

Systemic Analysis on Deep Drilling Techniques and the Economic Evaluation both in China and Abroad