Results 221 to 230 of about 31,902 (254)
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Annulus Unloading Rates as Influenced by Wellbore Storage and Skin Effect
Society of Petroleum Engineers Journal, 1972Abstract The modern trend in well testing (buildup or drawdown) bas been toward acquisition and analysis of short-time data. Pressure data early in a test are usually distorted by several factors that mask the conventional straight line. Some of the factors are wellbore storage and various skin effects such as those
Henry J. Ramey, Ram G. Agarwal
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Left ventricular unloading decreases rate of isovolumic right ventricular pressure decline
American Journal of Physiology-Heart and Circulatory Physiology, 1993To determine whether direct ventricular interaction affects right ventricular (RV) relaxation, we compared the minimum rate of change of RV pressure (dP/dtmin) and the time constant, tau, of isovolumic RV pressure decline in open-chest, anesthetized pigs following a normal left ventricular (LV) contraction and an acutely unloaded LV contraction. Rapid
C D, Brown, E, Chow, D J, Farrar
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Unloading of baroreceptors by carotid occlusion does not increase heart rate in fetal sheep
European Journal of Obstetrics & Gynecology and Reproductive Biology, 2000Unloading of baroreceptors by carotid occlusion does not increase heart rate in fetal sheep;To test the hypothesis that in fetal sheep reduction of carotid sinus pressure by carotid occlusion increases heart rate.Fetal sheep (gestational age 121-132 days) were chronically instrumented with bilateral carotid occluders, catheters and electrodes (ECG) to ...
H J, Schröder +4 more
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Prediction of Critical Gas Flow Rate for Gas Wells Unloading
Proceedings of Abu Dhabi International Petroleum Exhibition and Conference, 2002Abstract The gas well loading phenomenon is considered one of the most serious problems in the gas industry. It occurs as a result of liquid accumulation in the wellbore, when the gas phase does not provide sufficient energy to lift the produced fluids, imposing additional hydrostatic pressure on the reservoir and causes more reduction ...
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Estimating Flow Rates Required To Keep Gas Wells Unloaded
Journal of Petroleum Technology, 1961Abstract The empirical method of estimating the flow rate required to keep a gas well unloaded in various-sized flow strings is represented by a chart showing flow rate, in Texas State standard cubic feet per day, vs the wellhead flowing pressure.
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Determination of Optimum N2 Rate for Unloading Gas Wells With Coiled Tubing
SPE/ICoTA Coiled Tubing & Well Intervention Conference and Exhibition, 2011Abstract Unloading gas wells with nitrogen (N2) is one of the most common applications of coiled tubing (CT). The unique feature of CT unloading, as compared to conventional gas lift, is that the gas injection depth can be changed continuously.
Y. Zhou, E. Smalley, S. Opel
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Appositional growth rate in the spongiosa of unloaded long bones of the dog.
Anatomischer Anzeiger, 1976In agreement with the results of previous investigations on the dynamics of diaphyseal osteonic bone in inert skeletal segments, it has been observed that the linear appositional growth rate on the trabecular bone of metaphyses and epiphyses does not significantly change in unloaded bones, in comparison with normally loaded ones.
E, Lozupone, G, Marotti, P, Aquilino
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Discussion: The rate of swelling of overconsolidated clays subjected to unloading
Géotechnique, 1980G. Mesri, C. R. Ullrich, Y. K. Choi
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