نتایج جستجو برای: ripi drilling laboratory

تعداد نتایج: 292805  

2013
Kevin T. Hoffman

Examines what avenues are open to establish a legal procedure to ensure compensation for parties injured as the result of accidents caused by offshore drilling rigs. Concludes that there is a need to impose strict liability standard on those parties engaged in offshore drilling for damages caused by such activities. THE CAMPECHE BAY BLOW-OUT: A STRICT LIABILITY APPROACH TO DAMAGES RESULTING FRO...

2012
Andrew R. Gates Daniel O. B. Jones

Recovery from disturbance in deep water is poorly understood, but as anthropogenic impacts increase in deeper water it is important to quantify the process. Exploratory hydrocarbon drilling causes physical disturbance, smothering the seabed near the well. Video transects obtained by remotely operated vehicles were used to assess the change in invertebrate megafaunal density and diversity caused...

Journal: :The International journal of oral & maxillofacial implants 2016
Michele Stocchero Marco Toia Denis Cecchinato Jonas P Becktor Paulo G Coelho Ryo Jimbo

PURPOSE To compile the current evidence on biomechanical, biologic, and clinical outcomes of undersized surgical preparation protocols in dental implant surgery. MATERIALS AND METHODS An electronic search using three different databases (PubMed, Web of Science, and Cochrane Library) and a manual hand search were performed including in vitro, animal, and clinical studies published prior to Oct...

Journal: :Energies 2021

This article focuses on the possibility of using an innovative drilling method for implementation underground works, especially where there is no physical large working machines. Work a model carried out under INDIRES project discussed. A design tool equipped with proposed technology presented. The solution in question makes it possible to increase efficiency process, which confirmed by compute...

Journal: :Acta Geophysica 2021

Abstract The drilling-related geomechanics requires a better understanding of the encountered formation properties such as poroelastic parameters. This paper shows set laboratory results dynamic Young’s modulus, Poisson’s ratio, and Biot’s coefficient for dry water-saturated Istebna sandstone samples under series confining pressure conditions at two different temperatures. predicted from Wyllie...

2016

Embedded sensors, connected to the industrial internet of things (IIoT), have increased the granularity and frequency of data collected during the drilling process – but the data is often siloed and underutilized. This lack of integration can lead to expensive, time-consuming problems during the drilling process. Inefficient drilling programs can have an even greater aggregate financial impact,...

Journal: :Journal of occupational and environmental hygiene 2010
David Rempel Demetra Star Alan Barr Marco Mendoza Blanco Ira Janowitz

Drilling holes into concrete or metal ceilings is one of the most physically demanding tasks performed in construction. The work is done overhead with rotary impact hammer drills that weigh up to 40 N. The task is associated with pain and musculoskeletal disorders at the wrist, forearm, shoulder, and back. The mechanism of injury is thought to be the high forces and non-neutral shoulder and wri...

Journal: :Ground water 2005
Pierre Perrochet

A convolution integral is developed to evaluate transient, drilling speed-dependent discharge rates into a tunnel gradually excavated in a homogeneous infinite aquifer. Comparison with the classical instantaneous-drilling evaluation commonly used in practice reveals drastically reduced early-time discharge rates, higher maximum rates, and similar long-term rates. Dimensionless-type curves are p...

Journal: :Applied sciences 2022

It is generally believed that core discing a rock failure phenomenon under high in-situ stress, and stress closely related to the characteristics of discing. The drilling tests intact granite were conducted on laboratory servo-controlled test platform. was observed showed at rate (> 15 mm/min) no confining pressure (0 MPA). fluctuation parameter consistent with section along core. mode discs...

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