Measurements of the spatial distribution of the time-averaged second-order pressure in a plane standing wave in atmospheric air are reported. Several measurement pitfalls are identified, and solutions are described. These include accounting for slight nonlinearity of the piezoresistive transducer and careful mounting of the transducer. Streaming causes extra complication when a capillary-connec...

I A small plastic bell connected to a reservoir suspended on a strain gauge and to a pressure recorder was fixed over a fistula in the scleral wall of Schlemm's canal. The anterior chamber was similarly connected to a reservoir and a pressure transducer. In a majority of vervet eyes an increase of the pressure in the bell over the intraocular pressure caused a bulk inflow into the canal through...

We report our experience with an ultrasound system to measure esophageal varix pressure in an in vitro model. The ultrasound system consists of a 12.5 MHz frequency intraluminal ultrasound probe, a water infusion catheter, and a manometry catheter, all contained within a nondistensible latex bag. Esophagi and external jugular veins were harvested from five pigs. The vein and ultrasound system w...

In this paper, we present a mathematical model to predict the evolution of rock permeability depending on effective pressure during oil production. The is based use results well testing data from wells operating in fields Perm–Solikamsk region north Volgo Ural and gas province. Dependences change flow characteristics reservoir were established. We performed comparative assessment using that nor...

Permeability and capillary pressures are important petrophysical properties. Permeability is one of the most important parameters for reservoir management and development. Capillary pressure data have been widely used in evaluating reservoir rock, sealing capacity, transition zone thickness, pay versus non pay, and absolute and relative permeability. We are working in this study modification tw...

Controversy exists about whether one-dimensional wave theory can explain the "self-canceling" waves that accompany the diastolic pressure decay and discharge of the arterial reservoir. Although it has been proposed that reservoir and wave effects be treated as separate phenomena, thus avoiding the issue of self-canceling waves, we have argued that reservoir effects are a phenomenological and ma...

Sequestration of carbon dioxide (CO2) in depleted oil reservoirs is one of the viable options for carbon management. This paper describes the preliminary modeling and flow simulation part of a DOE sponsored CO2 sequestration project. The main objective of the project is to understand the feasibility of long term sequestration of CO2 in a depleted oil reservoir through a field demonstration expe...

30 Controversy exists about whether one-dimensional (1D) wave theory can explain the ‘self31 cancelling’ waves that accompany the diastolic pressure decay and discharge of the arterial 32 reservoir. Although it has been proposed that reservoir and wave effects be treated as separate 33 phenomena, thus avoiding the issue of self-cancelling waves, we have argued that reservoir 34 effects are a ph...