초록 ▼

A multiphase fluid flow measuring system for measuring the volumetric fractions of gas, water and oil includes a housing having a bore in which a generally flexible tubular liner is disposed and forms with said housing a fluid displacement chamber. The liner together with portions of the housing def

A multiphase fluid flow measuring system for measuring the volumetric fractions of gas, water and oil includes a housing having a bore in which a generally flexible tubular liner is disposed and forms with said housing a fluid displacement chamber. The liner together with portions of the housing defines a fluid sample chamber in which a sample of liquid is trapped by closable valves while a cylinder and piston hydraulic actuator displaces hydraulic fluid into the displacement chamber to reduce the volume of the sample chamber by deforming the liner. Pressure in the sample chamber is correlated with the change in volume of the sample chamber to determine residual gas content of the sample and/or the fraction of one known liquid in another known liquid.

대표청구항 ▼

In a system for measuring a multiphase fluid flowstream including a water-oil-gas mixture: separator means for separating the liquid phase of said flowstream from the gas phase, said separator means including a gas outlet conduit and a liquid outlet conduit; and means for measuring the residual gas

In a system for measuring a multiphase fluid flowstream including a water-oil-gas mixture: separator means for separating the liquid phase of said flowstream from the gas phase, said separator means including a gas outlet conduit and a liquid outlet conduit; and means for measuring the residual gas content of a liquid flowstream leaving said separator means through said liquid outlet conduit comprising: a sampling apparatus including a housing section, valve means at opposite ends of said housing section and operable to be closed to define between said valve means a closed sample chamber in said housing section, a flexible liner disposed in said housing section and defining with said valve means said sample chamber and a fluid displacement chamber formed between said liner and said housing section, means for displacing fluid into said displacement chamber to cause said liner to reduce the volume of said sample chamber to determine the volumetric fraction of residual gas remaining in the sample trapped in said sample chamber.