초록 ▼

A system for characterizing the pressure, temperature, movement and flow patterns of a fluid under high pressure within a test cell. The test cell is lined internally with adjustable rock facings. Pressure is measured within the test cell using a device employing pressure-distortable optical fibers.

A system for characterizing the pressure, temperature, movement and flow patterns of a fluid under high pressure within a test cell. The test cell is lined internally with adjustable rock facings. Pressure is measured within the test cell using a device employing pressure-distortable optical fibers. Fluid velocity, flow direction, and filter-cake buildup are measured with laser Doppler velocimetry. The flow pattern of the fluid is viewed using corresponding arrays of transmitting and receiving optical fibers. Temperature of the fluid is estimated using a combination of thermal sensors. The pressure, velocity, viewing and temperature systems are integral to the rock facings of the test cell.

대표청구항 ▼

An apparatus for measuring a pressure of a fluid, the apparatus comprising: a facing having a front surface and a rear surface, the facing disposable adjacent the fluid; a stationary plate having an interior surface and a deforming surface, the stationary plate positioned within an open cavity in th

An apparatus for measuring a pressure of a fluid, the apparatus comprising: a facing having a front surface and a rear surface, the facing disposable adjacent the fluid; a stationary plate having an interior surface and a deforming surface, the stationary plate positioned within an open cavity in the facing; a pressure responsive plate having an exterior surface and a deforming surface, the pressure responsive plate positioned within the cavity wherein the deforming surface of the pressure responsive plate is disposed near the deforming surface of the stationary plate; a light source for providing light; a pressure sensing fiber optic member having a pressure sensing fiber input end, the input end disposed near the light source, an output end and a sensing portion, the sensing portion disposed within the cavity and between the deforming surface of the pressure responsive plate and the deforming surface of the stationary plate, wherein the sensing portion is reversibly deformed when pressure is exerted upon the sensing portion by the deforming surface of the pressure responsive plate; a light detecting means connected to the output end of the pressure sensing fiber optic means for detecting a light signal from the pressure sensing fiber optic member; and pressure outputting means for outputting a pressure reading determined from the light signal detected by the light detecting means.