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675  Articles
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Rotary percussion drilling determines the possibility of reducing waste and intrusion of foreign objects into the solution. It reduces drilling costs and increases the processing speed of the resulting product, and also contributes to the high-quality res... see more

Horizontal Directional Drilling (HDD) is commonly associated with well exploration activity, onshore road crossing, nearshore pipeline installation, and offshore pipeline crossing which requires precise alignment of two barges from one to the other. Here,... see more

This study aims to determine the effect of the drilling method on the shooting results in extracurricular football at the State High School 1 Kalijati. This study uses a quantitative approach. If viewed from the type of data presented, the method in this ... see more

Kondisi karakteristis alam (iklim, topografi, hidrologi, dan morfologi tanah) merupakan beberapa kendala yang menyebabkan Desa Bango, salah satu desa di Kepulauan Mantehage, Sulawesi Utara mengalami kesulitan untuk mendapatkan air bersih. Kegiatan program... see more

As generally known, subsurface pressure can be implied using both wireline logs and drilling events. However, there may be a case where wireline logs and drilling events do not indicate the same subsurface pressure. Data from four vertical wells located i... see more

The cutting fluids in machining, when chosen and applied adequately can contemplate in benefits during the manufacturing processes. The selected method should allow the cutting fluid to reach the closest possible of the cutting edge lubricating the chip-t... see more

Inconel-718 is a nickel based super alloy and is extensively in use for working at very high temperature (upto 2000 °C) such as aero engine gas path equipment, nuclear equipment etc. Drilling micro size hole in such material with laser beam has been a pro... see more

Turbodrills are axial hydraulic turbines which are used in drilling hydrocarbons in extreme conditions, possessing advantages over other drilling techniques with their high speed of rotation, and higher operating torques.In The present work, a numerical s... see more

This paper examines the problems that have contributed to the degradation of the two millennial irrigation techniques; it is foggara and ghout. This study was conducted during the period: 1990-2019 in the oases of Touat, Gourara, Tidikelt and Souf. Invest... see more

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