Results 171 to 180 of about 1,486,164 (204)

Drilling Dynamics, Mechanical Specific Energy Data Help Drill Record Extended-Reach Well

Journal of Petroleum Technology, 2021
This article, written by JPT Technology Editor Chris Carpenter, contains highlights of paper SPE 203335, “Using MSE and Downhole Drilling Dynamics in Achieving a Record Extended-Reach Well Offshore Abu Dhabi,” by Nashat Abbas and Jamal Al Nokhatha, ADNOC, and Luis Salgado, Halliburton, et al., prepared for the 2020 Abu Dhabi International Petroleum ...
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Pore-Pressure Estimation by Use of Mechanical Specific Energy and Drilling Efficiency

SPE Drilling & Completion, 2017
Summary Estimates of formation pore pressure before and while drilling are important inputs for well planning and operational decision making. A method is proposed to determine pore pressure from a combination of downhole drilling-mechanics parameters and in-situ rock data with the concept of mechanical specific energy ...
Reza Majidi, Martin Albertin, Nigel Last
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Improved Calculation Model of Mechanical Specific Energy Based on Single-Cutter Rock-Breaking Mechanism

SPE Journal
Summary As oil and gas exploration progresses to ultradeep and 10 000-m depths, insufficient energy supply during rock breaking by downhole polycrystalline diamond compact (PDC) bits presents a critical challenge. Quantifying the energy consumed in PDC cutter/rock interactions is therefore essential for enhancing bit efficiency and ...
Jiusen Wei, Guangqing Zhang, Wei Liu, Deli Gao   +3 more
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Method for Pore Pressure Estimation Using Mechanical Specific Energy and Drilling Efficiency

IADC/SPE Drilling Conference and Exhibition, 2016
Abstract Pre-drill prediction of formation pore pressure and pressure detection while drilling to recognize deviations from the expected pressure are important inputs for well planning and operational decision making. A method is proposed to determine pore pressure from a combination of downhole drilling mechanics ...
Reza Majidi, Martin Albertin, Nigel Last
openaire   +1 more source

Effect of Specific Mechanical Energy on Properties of Extruded Protein‐Starch Mixtures

Cereal Chemistry, 2002
ABSTRACTThe effect of the specific mechanical energy (SME) during extrusion of a protein‐starch mixture was studied by analyzing the glass transition temperature (Tg) and starch gelatinization. We found that the SME values of 344 to 2108 kJ/kg did not significantly change the Tg of the product.
Maoz Gropper, Carmen I. Moraru, Jozef L. Kokini   +2 more
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Mechanical specific energy and drilling efficiency

2022
Rasool Khosravanian, Bernt S. Aadnøy
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Modeling and Analyzing of Specific Mechanical Energy in Animal Feed Extrusion Process

Transactions of the ASABE, 2013
Abstract. A new mathematical model was proposed to describe the specific mechanical energy (SME) in the animal feed extrusion process based on dimensional analysis methodology (DAM). The effects of feed moisture content (21.3% to 29.7%), screw speed (140 to 240 rpm), and extrusion temperature (133°C to 167°C) on SME were studied by response surface ...
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Specific mechanical energy consumption of extrusion-cooking of wheat foamed packaging materials

Agricultural Engineering, 2015
Article history: Received: November 2014 Received in the revised form: December 2014 Accepted: January 2015 Extrusion-cooking technique, known from food processing, may be used in production of environmentally friendly foamed materials based on starch.
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Nanofluidics for osmotic energy conversion

Nature Reviews Materials, 2021
, Liping Wen, Lei Jiang
exaly  

Designing solid-state electrolytes for safe, energy-dense batteries

Nature Reviews Materials, 2020
Qing Zhao, Sanjuna Stalin, Chen-Zi Zhao
exaly