Results 61 to 70 of about 465,522 (217)

A new approach to evaluate the performance of partially propped hydraulic fractures

, 2013
A new approach for evaluating the performance of hydraulic fractures that are partially packed with proppant (propping agent) particles is presented.
Andrei Kotousov, Luiz Bortolan Neto, Aditya Khanna, Bortolan Neto, L., Khanna, A., Kotooussov, A.   +5 more
core   +1 more source

A comprehensive fracture network conductivity model for tight unconventional reservoirs considering various proppant size, creep deformation, and proppant compaction and embedment

Unconventional Resources
Graded proppant injection into complex fractures is frequently used to prop connected secondary fractures in tight unconventional reservoirs. A comprehensive conductivity model incorporating creep, decreasing proppant size distribution, proppant ...
Yingyan Li, Chenlin Hu, Jie Zeng, Wenfeng Wang, Shiqian Xu, Yingfang Zhou, Fanhua Zeng, Jingpeng Wang   +7 more
doaj   +1 more source

Is Having a Pain Having an Unshareable Particular?

Analytic Philosophy, EarlyView.
ABSTRACT Do I have something no one else can have when I am in pain? This puzzle about the so‐called ‘privacy of ownership’ of sensations is a special case of the problem of whether the states and qualities of a subject are particulars. (For if someone ‘has’ a pain, then that someone ‘is in’ a pain state and vice versa.) The debate addressing the ...
Bernhard Ritter
wiley   +1 more source

A multicenter survey on profile of care for hip fracture: predictors of mortality and disability.

, 2010
Summary Because delay in time to surgery beyond 24–48 h has been observed in many studies to be associated with adverse outcomes, a survey in nine centers in Italy was undertaken to examine the impact of time to surgery on mortality and disability at 6 ...
Saugo M, Siviero P, Hip Fracture Study Group, Besdine RW, Maggi S, Wetle T, CREPALDI, GAETANO   +6 more
core   +1 more source

‘There Has Been a Scandal’: Cultural Performers and the Strangers’ Churches of London

Renaissance Studies, EarlyView.
ABSTRACT Despite what one might assume to have been a rigid line between London's refugee community—with its strict brand of Protestantism—and the city's performance cultures—often the target of strict Protestants' ire—historical records reveal a number of overlaps between those domains.
Matteo Pangallo
wiley   +1 more source

The combination of acidizing and hydraulic fracturing for the stimulation of a tight gas reservoir in Minas Gerais

REM: International Engineering Journal
The combination of acidizing and hydraulic fracturing, or proppant-acid fracturing, seems to be a very logical approach to achieve the maximum stimulated volume in tight gas reservoirs, since the acid solution can stimulate the deep microfracture network
Humberto Oliveira, Cláudio Lúcio Lopes Pinto, Thaís de Oliveira Soares, Alexandre Uhlein, José Maria dos Santos Júnior, Henrique Ribeiro, Antonio Eduardo Clark Peres   +6 more
doaj   +1 more source

Precarious agency: The role of uptake

The Southern Journal of Philosophy, EarlyView.
Abstract How do we overcome the agency dilemma, that is, account for the fact that power relations heavily affect our agency without neglecting the many ways in which oppressed people act meaningfully? This article offers a solution by paying special attention to socially complex uptake in a framework of communities of practice. In order to explain the
Deborah Mühlebach
wiley   +1 more source

Zoledronic Acid in Reducing Clinical Fracture and Mortality after Hip Fracture.

, 2007
BACKGROUND: Mortality is increased after a hip fracture, and strategies that improve outcomes are needed. METHODS: In this randomized, double-blind, placebo-controlled trial, 1065 patients were assigned to receive yearly intravenous zoledronic acid (at a
Moore, K.A., Lyles, K.W., Boonen, S., Nordsletten, L., Abrams, K., Hodgson, P.K., Colón-Emeric, C.S., Recknor, C., Eriksen, E.F., Mesenbrink, P., Adachi, J.D., Pieper, C.F., Hyldstrup, L., Magaziner, J.S., Horowitz, Z., Orloff, J.J., Mautalen, C., Lavecchia, C., Zhang, J., for the HORIZON Recurrent Fracture, Trial   +19 more
core   +1 more source

Conductivity analysis of hydraulic fractures filled with nonspherical proppants in tight oil reservoir

Energy Science & Engineering, 2020
Hydraulic fracturing is an effective way to exploit hydrocarbons in tight oil reservoir. The success of this technique lies on the creation of high conductivity channels for the oil and gas.
Jiaxiang Xu, Yunhong Ding, Lifeng Yang, Zhe Liu, Rui Gao, Hanxuan Yang, Zhen Wang   +6 more
doaj   +1 more source

Teaching Through Making: |xam and !xun Material Culture of the Bleek and Lloyd Collection

Museum Anthropology, Volume 50, Issue 1, Spring 2027.
ABSTRACT At Wits Art Museum (University of the Witwatersrand, Johannesburg, South Africa) is a small collection donated to the former Wits Museum of Ethnology by Percival Kirby in 1952. A note in the accession register ties the items into the context of the renowned ‘Bushman researches’ of Wilhelm Bleek and Lucy Lloyd in Cape Town in the 1870s and ...
Vibeke M. Viestad, Justine Wintjes
wiley   +1 more source