Using the optimal combination of these parameters is useful in minimizing the axial force and torque of drilling operations; by extension, other drilling parameters such as cutting pressure, material removal rate, and power could be optimized since they depend on the combination of drilling parameters which affect the axial force and torque.
"Since we felt in our houses the power of the sonic booms produced by fighter jets on the night of July 15, a mournful dark symphony is continuing to play in our lives, a combination of drilling, construction, low-flying helicopters, Arabic utterances, and the ghost sounds of the Atatürk Cultural Center that awaits at the heart of the city, unoccupied".
There are many combinations of drills that integrate serving, passing, setting and other skills.
The exploration and production of oil and gas involve the drilling of wells using either one or a combination of three drilling techniques based on drilling fluid density: conventional overbalanced drilling, managed pressure drilling and underbalanced drilling.
The effect of many equally possible combinations of drilling sequences on economic outcomes can be captured by analyzing the results of the 2000 repeated random realizations.
The core samples are exposed to various combinations of drilling muds to study their effect on the petrophysical properties such as effective permeability and fluid saturation.
The CRIP method relies on a combination of conventional drilling and directional drilling to access the coal seam and physically form a link between the injection and production wells, without the use of linking technologies utilized in LVW methods [38].
The combination of horizontal drilling with hydraulic fracturing of shale and other low-permeability rocks has opened up large reserves of oil and natural gas to production.
This was a great age of individualism, and for those millions of civilians on loan to the military, camp life was a combination of endless drill, monotonous routines, constant boredom, homesickness and an underlying fear of ever-present sickness.
-But President Obama's use of the phrase to describe his current energy policy leanings - signaling yes to a combination of domestic drilling, alternative energy and conservation -- is driving Republicans nuts, because the phrase has been a product of their party's energy platform for years.
