Results 241 to 250 of about 886,828 (304)

Psychometric and Molecular Profiling to Predict Outcomes of Spinal Cord Stimulation for Chronic Pain: A Pilot Study. [PDF]

J Pain Res
D'Agnelli S, Amodeo G, Cascella M, Baciarello M, Bellini V, Franchi S, Galimberti G, Sacerdote P, Bignami EG.   +8 more
europepmc   +1 more source

A Normative Approach to Measuring Classical Horizontal Inequity [PDF]

Jean-Yves Duclos, Peter Lambert
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HORIZONTAL WELLS. APPLICATION OF MULTISTAGE FRACKING IN HORIZONTAL WELLS

Высокие технологии и инновации в науке: сборник избранных статей Международной научной конференции (Санкт-Петербург, Ноябрь 2021), 2022
В работе рассматривается опыт применения многостадийного гидроразрыва пласта, в качестве эффективной технологии интенсификации добычи нефти и полноты ее извлечения из недр. Выделяются отличительные особенности технологий добычи нефти горизонтальными скважинами, в качестве преимуществ при их применении.
openaire   +1 more source

Pseudo-Horizontal Well: Alternative to Horizontal and Vertical Wells

Proceedings of International Conference on Horizontal Well Technology, 1996
Abstract Horizontal wells are getting more and more widely used in oil and gas fields development due to plenty of its merits. However, there are examples when horizontal well drilling did not justify hopes. It is shown in this paper, that layered and anisotropic structure of the reservoir may lead to decrease of initial oil flow rates ...
S. N. Zakirov, E. S. Zakirov
openaire   +1 more source

Horizontal Wells – Are They Worth the Cost?

PetroVietnam, 1995
ABSTRACT Horizontal and extended-reach wells are making an important contribution to world's oil production. Well over five thousands horizontal wells and drainholes have been drilled, with approximately fifteen hundreds such wells in Canada.
Q.T. Doan, S.M. Ali
openaire   +1 more source

Horizontal-Well Pressure Analysis

SPE Formation Evaluation, 1987
SummaryThis paper presents an analysis of the pressure-transient behavior of a horizontal well or a drainhole. The performances of horizontal wells and fully penetrating vertical fractures are compared. Dimensionless wellbore pressures are computed for two classic boundary conditions: infinite conductivity and uniform flux.
E. Ozkan, R. Raghavan, S. D. Joshi
openaire   +1 more source

Pressure Transient Analysis for Horizontal Well and Multi-Branched Horizontal Wells

Proceedings of International Conference on Horizontal Well Technology, 1996
Abstract Transient pressure for cases of a horizontal wellbore axis with any angle inclined to a fault or a constant pressure supply boundary in anisotropic formations were studied. This axis parallel to or perpendicular to a fault is only its a simple special case.
X.Y. Kong, X.Z. Xu, D.T. Lu
openaire   +1 more source