Results 281 to 290 of about 2,290,362 (336)
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SPE Annual Technical Conference and Exhibition, 1992
ABSTRACTThe conventional way to assess drilling performance in the oil field is to compare actual performance to statistical standards derived from offset records. By their nature, these standards are subjective and variable. While they are ideal to monitor short-range performance and trends in well- known, older fields, they lack the power of physical
R.C. Pessier, M.J. Fear
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ABSTRACTThe conventional way to assess drilling performance in the oil field is to compare actual performance to statistical standards derived from offset records. By their nature, these standards are subjective and variable. While they are ideal to monitor short-range performance and trends in well- known, older fields, they lack the power of physical
R.C. Pessier, M.J. Fear
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Experiments on Specific Energy and Pulping Quality of Extrusion Mechanical Pulping
Key Engineering Materials, 2011In order to select rational screw parameters for improving the pulping quality, efficiency and reducing specific energy, the paper studied the effects of the rotational speed of screw, lead number of reverse thread and slot width of reverse flight of the twin screw pulping extruder (TSPE) on specific energy, flux and pulping quality (reject rate, fiber
Xiao Yang Shen +3 more
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Theories and Applications of Pulsed-Jet Drilling With Mechanical Specific Energy
SPE Journal, 2016Summary Mechanical specific energy (MSE) is the amount of energy required to destroy a unit volume of rock. The main work of this study is to bring the hydraulic energy of a pulsed jet into an MSE model and further analyze the mechanism of improving the rate of penetration (ROP) for pulsed-jet drilling on the basis of the model ...
Wei Minghui +5 more
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Facts, Fallacies and Pitfalls of Using Mechanical Specific Energy (MSE) – Part 1
SPE/IADC International Drilling Conference and Exhibition, 2023Abstract Over the years, some researchers have used Mechanical Specific Energy (MSE), which is said to represent the amount of energy needed to drill a unit volume of rock, to quantify drilling efficiency. MSE was originally introduced by Teal for the mining industry in 1964.
Robello Samuel, Graham Mensa-Wilmot
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Mechanical Specific Energy for Drilling Optimization in Deepwater Brazilian Salt Environments
IADC/SPE Asia Pacific Drilling Technology Conference, 2016Abstract Operators exploring presalt areas report issues with bottomhole assembly (BHA) wear and failure resulting from factors such as vibrations, stick-slip, and torsional resonance during drilling operations in salt layers. This study presents a new real-time analysis based on geomechanics capability to optimize energy consumption and
C. N. Pinto, A. L. Lima
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Fracture mechanics applications of absorbed specific fracture energy: Notch and unnotched specimens
Theoretical and Applied Fracture Mechanics, 1985Abstract The Absorbed Specific Fracture Energy (ASFE) ∗ is an energy criterion that may be applied to evaluate the embrittlement and fracture properties of low and medium strength structural materials. Some new results are presented to illustrate the application of ASFE, and relating them to the other fracture criteria such as J1c and K1c.
F. Gillemot, E. Czoboly, I. Havas
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Mechanical Specific Energy: Derivation, Understanding and Relationship to Formation Strength
SPE/IADC International Drilling Conference and ExhibitionAbstract The Mechanical Specific Energy (MSE) model is used widely in the drilling industry. However, its use has been questioned in a two-part series in the SPE-IADC Drilling Conference, "Mechanical Specific Energy (MSE): Claims and Implications – Facts, Fallacies, and Pitfalls" (Samuel and Mensa-Wilmot, 2023 SPE 212508, 2024 SPE 217727)
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Specific economic regulation mechanisms of investment in new energy infrastructure
2018Energy infrastructure operators are characterized by capital intensity and long periods of return on investment. In order for the price of use of the infrastructure to be within a reasonable frame, the regulatory framework should define appropriate and efficient methods of economic regulation.
Šimurina, Jurica, Gelo, Tomislav
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Relation Between the Mechanical Specific Energy, Cuttings Morphology, and PDC Cutter Geometry
Volume 5: Materials Technology; Petroleum Technology, 2014This paper discusses a series of experiments performed on Carthage Marble Limestone rock samples in a high pressure single PDC cutter testing facility. The tests were performed at 450 psi confining pressure conditions and four different cutters were used. Two different cutter diameter sizes of 13 mm and 16 mm, each with two different chamfer sizes of 0.
Babak Akbari +3 more
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