Frontiers

Near-surface velocity inversion and modeling method based on surface waves in petroleum exploration: a case study from Qaidam Basin, China

1 Northwest Branch of Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou City, China 2 Huabei Oilfield Company, PetroChina, Renqiu City, China Surface waves are widely ...
Techniques de l'Ingénieur

Determination of fluid flow rate using the velocity-area method

To measure the flow of a fluid (liquid or gas) through a pipe or channel, a global method is used whenever possible. Although there are many such methods, it's not always possible to find a suitable ...
IEEE

Experimental determination of turbine flow rate using velocity-area method. Study case: micro-hydro units equipped with EOS type turbines

Abstract: The paper aims at developing a simpler but more precise methodology for in situ determination of turbine discharge at small hydro power plants using the velocity-area method known as the ...
Nature

A region-matching method for pulse transit time estimation: potential for improving the accuracy in determining carotid femoral pulse wave velocity

Using a region of pulse waveform to estimate PTT may increase the accuracy in cfPWV measurement. A region-based method that obtained PTT by shifting the proximal pulse wave and superimposing its ...
Frontiers

Study of 3-D velocity structure characteristics in Dadu river Houziyan reservoir area at different impoundment stages

Since the initiation of ‘The Development of the Western Region in China’ and ‘Electricity Transmission from West to East’ more than 2 decades ago, numerous reservoirs have been constructed in Western ...
Oil

Method calculates sand velocity, hold-up in flowlines

A relatively simple method of estimating sand velocity and hold-up in multiphase flowlines allows a design engineer to determine whether a producing well needs a sand-exclusion system at a subsea ...
Scientific Research Publishing

ISO, “Measurement of Fluid Flow in Closed ConduitsVelocity Area Method Using Pitot Static Tubes,” ISO 3966, 1977, pp. 146-183.

ABSTRACT: An isokinetic sampling probe is designed and constructed to measure entrained liquid droplet fluxes in separated gasliquid pipe flows. This probe also has the capability of working as a ...