Results 21 to 30 of about 432,547 (311)
Verstetigung in der nachhaltigen Quartiersentwicklung : eine Analyse aus Sicht der Urban Regime Theory [PDF]
Geographica HelveticaStädte haben in den vergangenen Jahren begonnen, eine quartiersbezogene Nachhaltigkeitspolitik zu realisieren, die auf einem netzwerkorientierten Planungsverständnis aufbaut.
M. Drilling
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The Fragile Body in the Functional City: An Editorial
Urban Planning, 2019 Changing circumstances force planning to re-define its role as a driving function shaping our cities today. One of the significant challenges to the century-old tradition of planning comes from the ageing population.
Matthias Drilling, Fabian Neuhaus
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Phase Behavior Analysis of CO2 and Formation Oil System
Geofluids, 2021 In this paper, there are nine oil samples to explore the characteristics of formation oil at different CO2 injection rate, and the characteristics include bubble point pressure, volume expansion coefficient, viscosity, density, and average molecular ...
Lei Tang +4 more
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Wear behavior of special tools in the drilling of CFRP composite laminates
Wear, 2021 Mechanical drilling of carbon fiber reinforced polymers (CFRPs) has been notoriously difficult due to the high abrasiveness of reinforcing fibers and the anisotropic behavior of the constituents leading to poor hole quality and rapid tool wear.
Jinyang Xu +4 more
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Real-Time Measurement of Drilling Fluid Rheological Properties: A Review
Italian National Conference on Sensors, 2021 The accurate and frequent measurement of the drilling fluid’s rheological properties is essential for proper hydraulic management. It is also important for intelligent drilling, providing drilling fluid data to establish the optimization model of the ...
Naipeng Liu +4 more
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Drilling of CFRP-Ti6Al4V stacks using CO2-cryogenic cooling
, 2021 In the work here presented, liquefied CO2 is used as cutting fluid for drilling CFRP-Ti6Al4V stacks as alternative to dry-drilling. Several tests were performed using dry-drilling technique, to compare this with the performance of CO2 cryogenic cooling ...
Alejandro Rodríguez +5 more
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Study and Application of Combination Cementing Technology of Gypsum Salt Layer in Kuqa Piedmont Structure, Tarim Basin [PDF]
Journal of Petroleum Science and Technology, 2022 Kuqa piedmont is the main battlefield of natural gas production in the oil field and the source of west-east gas transmission. The wellbore quality is related to the safety of well construction and production. However, the well cementation quality of the
Yicheng Sun, Zhenglian Liu, Xu Song
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Study on Start-Up Process of SAGD by Solvent: Experiment Research and Process Design
Geofluids, 2021 Steam-assisted gravity drainage (SAGD) has been used to develop the “super heavy” oil reservoirs in Canada. The viscosity can reach more than 30,000 cp at 50°C.
Jun Sun +6 more
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Materials, 2021 An important aspect of hydrocarbon drilling is the usage of drilling fluids, which remove drill cuttings and stabilize the wellbore to provide better filtration.
Rabia Ikram +3 more
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