Results 41 to 50 of about 237,953 (402)

Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming [PDF]

, 2018
Purpose. Study of the plasma flow interaction with the borehole surface in the process of its thermal reaming for determination of transient temperature distribution along the borehole surface and the average coefficient of heat transfer from the plasma ...
Horiachkin, V, Potapchuk, I, Semenenko, Ye, Voloshyn, O, Yemelianenko, V, Zhevzhyk, O, Zhovtonoha, M, Таtarko, L   +7 more
core   +1 more source

Present-day stress orientations and tectonic provinces of the NW Borneo collisional margin [PDF]

, 2010
Extent: 15p.Borehole failure observed on image and dipmeter logs from 55 petroleum wells across the NW Borneo collisional margin were used to determine maximum horizontal stress (σH) orientations; combined with seismic and outcrop data, they define seven
Agostinelli, Ali, Barton, Bell, Bell, Bell, Bol, Brudy, Christopher K. Morley, Franke, Hall, Hall, Hamilton, Hazebroek, Hazebroek, Heidbach, Hesse, Hillis, Hillis, Hinz, Hinz, Hiscott, Hutchison, Ingram, James, James Clark, King, King, King, King, King, Kirsch, Lambiase, Madon, Madon, Madon, Madon, Mandl, Mardia, Mark R. P. Tingay, Mastin, McGilvery, Michel, Milsom, Morley, Morley, Morley, Morley, Morley, Morley, Peška, Plumb, Richard R. Hillis, Richardson, Rosalind C. King, Sandal, Simons, Sonder, Sperner, Tan, Tingay, Tingay, Tingay, Tingay, Tingay, Tingay, Tingay, Townend, Van Viet, Yale, Yale, Yassir, Zhang, Zoback   +73 more
core   +2 more sources

Englacial Warming Indicates Deep Crevassing in Bowdoin Glacier, Greenland

Frontiers in Earth Science, 2020
All around the margins of the Greenland Ice Sheet, marine-terminating glaciers have recently thinned and accelerated. The reduced basal friction has yielded increased flow velocity, while the rate of longitudinal stretching has been limited by ice ...
Julien Seguinot, Martin Funk, Andreas Bauder, Thomas Wyder, Cornelius Senn, Shin Sugiyama   +5 more
doaj   +1 more source

Experiences with performing a thermal response test in boreholes for heat pumps [PDF]

Acta Montanistica Slovaca, 2006
This paper presents a Thermal Response Test (TRT) performed in two testing boreholes for heat pumps in the Czech Republic. The TRT is a special in-situ technique used abroad for the determination of key parameters needed for the proper borehole design ...
Jiří Ryška
doaj  

Auxiliary Sensor-Based Borehole Transient Electromagnetic System for the Nondestructive Inspection of Multipipe Strings

Sensors, 2017
Transient electromagnetic (TEM) techniques are widely used in the field of geophysical prospecting. In borehole detection, the nondestructive inspection (NDI) of a metal pipe can be performed efficiently using the properties of eddy currents.
Bo Dang, Ling Yang, Na Du, Changzan Liu, Ruirong Dang, Bin Wang, Yan Xie   +6 more
doaj   +1 more source

Borehole geological assessment [PDF]

, 1979
A method and apparatus are discussed for performing geological assessments of a formation located along a borehole, and a boring tool that bores a pair of holes into the walls of the borehole and into the surrounding strata along with a pair of probes ...
Spuck, W. H., III
core   +1 more source

Benefits of a 3D geological model for major tunnelling works : an example from Farringdon, east-central London, UK [PDF]

, 2012
In the design of major construction works, the better the ground conditions are known, the more control there is on the assessment of risks for construction, contract and personnel, and ultimately on final costs. Understanding of the ground conditions is
Aldiss, D.T., Black, M.G., Entwisle, D.C., Page, D.P., Terrington, R.L.   +4 more
core   +2 more sources

Effect of confining pressure on fracture characteristics and mineralogical behavior of tight sandstone specimens after hydraulic fracturing

Deep Underground Science and Engineering, EarlyView.
Hydraulic fracturing in tight sandstone and fracture propagation characteristics using backscattered electron‐scanning electron microscope (BSE‐SEM) images. Abstract This study focuses on hydraulic fracturing experiments conducted under triaxial conditions on tight sandstone specimens from Shivpuri district, Madhya Pradesh, India.
Pankaj Rawat, Narendra Kumar Samadhiya
wiley   +1 more source

Thermal Response Testing Results of Different Types of Borehole Heat Exchangers: An Analysis and Comparison of Interpretation Methods

Energies, 2017
The design phase of ground source heat pump systems is an extremely important one as many of the decisions made at that time can affect the system’s energy performance as well as installation and operating costs.
Angelo Zarrella, Giuseppe Emmi, Samantha Graci, Michele De Carli, Matteo Cultrera, Giorgia Dalla Santa, Antonio Galgaro, David Bertermann, Johannes Müller, Luc Pockelé, Giulia Mezzasalma, Davide Righini, Mario Psyk, Adriana Bernardi   +13 more
doaj   +1 more source

Repurposing of disused shale gas wells for subsurface heat storage: preliminary analysis concerning UK issues [PDF]

, 2016
Development of many wells is envisaged in the UK in coming decades to exploit the abundant shale gas resource as fuel and petrochemical feedstock. Forward planning is therefore warranted regarding reuse of the resulting subsurface infrastructure after ...
Westaway, Rob
core   +1 more source