Results 41 to 50 of about 957,306 (285)

Experimental and theoretical investigation on the conductivity of complex fracture network in unconventional gas reservoirs.

PLoS ONE
With the depletion of conventional oil and gas resources, unconventional oil and gas resources have become crucial as alternative hydrocarbon sources.
Jinjian Gao, Lanxiao Hu
doaj   +1 more source

Experimental Study on Grouting Seepage Characteristics of Single-Fractured Rock Masses with Different Inclination Angles under Three-Dimensional Stress

Geofluids, 2022
In underground engineering, the fracture dip angle and three-dimensional stress have great influence on the permeability and mechanical properties of fractured rock mass.
Hexuan Zhu, Lijun Han
doaj   +1 more source

Numerical well test for well with finite conductivity vertical fracture in coalbed

, 2014
A new well test model is developed for the hydraulic fractured well in coalbed by considering the following aspects: methane desorption phenomena, finite conductivity vertical fractures, and asymmetry of the fracture about the well.
Liu YW(刘曰武), Fang HJ, Liu, YW (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China., Zhao PH(赵培华), Ouyang WP(欧阳伟平), Lu Q   +5 more
core   +1 more source

The Lupus Damage Index Revision Program: Results From the Item Generation and Reduction Phases

Arthritis Care &Research, EarlyView.
Objective A data‐driven and expert/patient consensus‐based project to develop a revised Systemic Lupus International Collaborating Clinics (SLICC)/American College of Rheumatology (ACR) Damage Index (SDI) is under way supported by SLICC, ACR, and the Lupus Foundation of America. Our objective is to report the item generation and reduction phase results
Burak Kundakci, Megan R. W. Barber, Ann E. Clarke, Sindhu R. Johnson, Anselm Mak, Hermine I. Brunner, Murat Inanc, Rosalind Ramsey‐Goldman, Guillermo Ruiz‐Irastorza, Ellen M. Ginzler, John G. Hanly, Alexandra Legge, Cynthia Aranow, Laurent Arnaud, Nathalie Costedoat‐Chalumeau, Dafna D. Gladman, Søren Jacobsen, Michelle Petri, Clovis A. Silva, Évelyne Vinet, Alexandre E. Voskuyl, SDI Revision Literature Review Groups, SDI Revision Delphi Panel, SDI Revision Item Reduction Committee, SDI Revision Clinical Domain Groups, Ian N. Bruce   +25 more
wiley   +1 more source

Estimating Unpropped-Fracture Conductivity and Fracture Compliance From Diagnostic Fracture-Injection Tests [PDF]

SPE Journal, 2018
Summary A new method is proposed to estimate the compliance and conductivity of induced unpropped fractures as a function of the effective stress acting on the fracture from diagnostic-fracture-injection-test (DFIT) data. A hydraulic-fracture resistance to displacement and closure is described by its compliance (or stiffness).
Wang, Hanyi, Sharma, Mukul
openaire   +3 more sources

Caregiver Perspectives on the Burden of Disease and Treatment in Uncontrolled Gout

Arthritis Care &Research, EarlyView.
Objective Uncontrolled gout (UG) refers to persistently elevated serum urate (SU) levels >6 mg/dL and ongoing gout symptoms despite use of urate‐lowering therapy (ULT). The objective of this study was to evaluate the burden associated with informal caregiving for individuals with UG.
Angelo Gaffo, Bhavisha Desai, Abiola Oladapo, Nana Kragh, Rebekah Zincavage, Brad Padilla, Naomi Schlesinger   +6 more
wiley   +1 more source

Experimental Study on Short-Term Fracture Conductivity Simulation of Hydraulic Fractures in Marine Combustible Ice Reservoirs

Journal of Marine Science and Engineering
Marine combustible ice, as a potential clean energy resource, has attracted widespread attention in recent years. To enhance its production efficiency, hydraulic fracturing is considered a promising technique, in which fracture conductivity is one of the
Mingzhong Li, Zizhen Wang, Xiaofei Zhang, Xiatong Han, Jintang Wang, Feifei Wang   +5 more
doaj   +1 more source

Performance of vertical fractured wells with multiple finite-conductivity fractures [PDF]

Journal of Geophysics and Engineering, 2015
Multiple fractures originating from a vertical wellbore are usually observed in hydraulic fracturing treatments. Most of the previous models for vertical fractured wells are based on single-planar fractures that may be symmetric or asymmetric about the wellbore, but few studies have been devoted to multiple-planar fractures.
Junjie Ren, Ping Guo
openaire   +1 more source

Employment Trajectories of Patients With Systemic Lupus Erythematosus and Factors Driving Transitions Between States

Arthritis Care &Research, EarlyView.
Objective Systemic lupus erythematosus (SLE) significantly impacts employment capacity. This study aimed to investigate the impact of burden of disease activity, damage, and treatment on employment outcomes and transitions in patients with SLE. Methods Using data from a single center, we analyzed employment transitions, adjusted mean disease activity ...
Javier Mencia‐Ledo, Zahi Touma, Laura Whittall Garcia, Dafna D. Gladman, Behdin Nowrouzi‐Kia   +4 more
wiley   +1 more source

Fracture propagation laws in staged hydraulic fracturing and their effects on fracture conductivities

Petroleum Exploration and Development, 2017
Completely taking into account the interferences between fractures as well as the friction effects on injection allocations, a fully coupled finite element method inherited from a verified one is proposed to discuss fracture propagation laws and analyze their impacts on fracture conductivities.
Jinqing BAO, He LIU, Guangming ZHANG, Juan JIN, Wei CHENG, Jiandong LIU   +5 more
openaire   +2 more sources