A method to remove gas hazard around underground thrust faults: Kilometre directional feathery drilling
نویسندگان
چکیده
منابع مشابه
Advantage and Hazard to the Environment from Construction and Operation of Underground Gas Storage Facilities
The paper describes positive and negative aspects of the basic UGS facilities’ impact on the environment using the results of the study of ecologically hazardous factors on the UGS operation areas. On the basis of results of ecological investigations at Russian underground gas storages that have been recently carried out a comprehensive estimation of UGS impact on the environment was given and ...
متن کاملThe prediction of underground drilling noise
The current exposure limits of mineworkers to physical pollutants, under the Mine Health and Safety Act3 is 85 dB LAeq,8h, with a peak sound pressure level of 135 dB(A). However, the sound pressure level (SPL) of machines is generally determined according to the methods and procedures defined in SABS-ISO 3744 under free field conditions as defined in Appendix 3 of the same standard. While SPL a...
متن کاملA Method to Remove Optical Fibers Coating
In this paper we report some experimental results concerning the stripping in any portion of the optical fibers at 10.6 μm wavelength. These experimental procedures have been performed using a CO2 laser with 40 W power and a galvanometer scanner with 150 mm focal length. The objective of this paper was to find the optimal conditions (speed of the laser along the optical fiber) for a good stripp...
متن کاملCalculating Intermediate Faults in Underground Cables
Short-circuit calculations are extremely important in the application and setting of protective relays and the analysis of power system operations. This paper illustrates the calculation of fault currents and voltages during intermediate faults in underground cables, taking into consideration the cable sheath bonding and grounding method. The compensated ground loop impedance for faults along t...
متن کاملApplication of Design of Experiment Method for Thrust Force Minimization in Step-feed Micro Drilling
Micro drilled holes are utilized in many of today's fabrication processes.Precision production processes in industries are trending toward the use of smaller holeswith higher aspect ratios, and higher speed operation for micro deep hole drilling. However,undesirable characteristics related to micro drilling such as small signal-to-noise ratios,wandering drill motion, high aspect ratio, and exce...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Thermal Science
سال: 2019
ISSN: 0354-9836,2334-7163
DOI: 10.2298/tsci180607262x