Results 41 to 50 of about 4,389,832 (297)
Energies, 2023 The relevance of the application of hydraulic thruster technology is determined by the technological limitations of drilling both vertical and horizontal wells.
Andrey A. Kunshin +4 more
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Molecules, 2021 Drilling issues such as shale hydration, high-temperature tolerance, torque and drag are often resolved by applying an appropriate drilling fluid formulation.
M. Murtaza +5 more
semanticscholar +1 more source
Aspects of energy requirements for rock drilling [PDF]
, 1974 Development of laboratory rock breakage techniques to relate energy and surface area produced by slow compression, drop hammer and stamp mill. A detailed study of laboratory rotary-percussive drilling in a wide range of rocks under different ...
Wootton, David
core +6 more sources
Heliyon, 2020 An enhanced drill bit combining high pressure fluid jetting with a conventional rotary drilling system incorporating a tailored drilling fluid was designed to improve drilling performance in hard crystalline rock.
Timon Echt +2 more
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Scientific Reports, 2021 The present study evaluates the drilling fluid density of oil fields at enhanced temperatures and pressures. The main objective of this work is to introduce a set of modeling and experimental techniques for forecasting the drilling fluid density via ...
S. Alizadeh +4 more
semanticscholar +1 more source
Journal of Spectroscopy, 2013 After synthesis of mixed fatty acid triethanolamine ester surfactant based on animal and vegetable mixed oils, the reaction solution was added into 4% (wt/wt) liquid nitric acid or 9% (wt/wt) solid nitric acid as eliminating fluorescent agent continuing ...
Feng-shan Zhou +6 more
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Petroleum Research, 2021 The deterioration of drilling fluid properties during deep drilling causes problems like inefficient cutting removal, fluid invasion, and shale swelling, which increases non-productive time (NPT) and cost.
M. Ahasan +3 more
semanticscholar +1 more source
A new model for predicting fluid loss in fracture-porosity reservoir
, 2021 Drilling fluid loss always occurs in fracture-porosity reservoirs and it causes severe problems. To reduce and prevent lost circulation, it is important to get to know the cause and the characteristic of drilling fluid loss.
Peng Qian +11 more
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Super-amphiphobic, strong self-cleaning and high-efficiency water-based drilling fluids
Petroleum Exploration and Development, 2020 Based on the amphiphobic theory on underground rock surface, a super-amphiphobic agent is developed and evaluated which can form nano-micro papilla structure on rock, filter cake and metal surface, reduce surface free energy, prevent collapse, protect ...
Guancheng JIANG +4 more
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Journal of Petroleum Exploration and Production Technology, 2021 Rheological and filtration properties of drilling fluid contribute a vital role in successful drilling operations. Rheological parameters such as apparent viscosity (AV), plastic viscosity (PV), yield point (YP) and gel strength of drilling fluids are ...
V. Prakash, N. Sharma, M. Bhattacharya
semanticscholar +1 more source