Results 21 to 30 of about 860,603 (418)
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
semanticscholar +1 more source
Synthesis and performance of a small molecular quaternary ammonium salt inhibitors [PDF]
E3S Web of Conferences, 2022 In this work, the quaternary ammonium salt small molecule inhibitors with melamine and sodium chloroacetate as raw materials was synthesized and it has certain inhibition on the hydration swelling of bentonite. Through linear swelling test, mud ball test
Jia Jun +3 more
doaj +1 more source
Forecasting the abnormal events at well drilling with machine learning [PDF]
, 2022 We present a data-driven and physics-informed algorithm for drilling accident forecasting. The core machine-learning algorithm uses the data from the drilling telemetry representing the time-series. We have developed a Bag-of-features representation of the time series that enables the algorithm to predict the probabilities of six types of drilling ...
arxiv +1 more source
Parametric Investigation on Different Bone Densities to avoid Thermal Necrosis during Bone Drilling Process [PDF]
, 2023 Bone drilling is a universal surgical procedure commonly used for internal fracture fixation, implant placement, or reconstructive surgery in orthopedics and dentistry. The increased temperature during such treatment increases the risk of thermal penetration of the bone, which may delay healing or compromise the fixation's integrity.
arxiv +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
You-qi chuyun, 2021 As the environmental protection requirements for surrounding sea areas of Tongming Strait are high, the crossing strata are complex and changeable, the underground fresh water and sea water appear alternately, the crossing section is long with large ...
Yuguang MING +5 more
doaj +1 more source