Differential Pressure Transducer & LED Display | Validyne Get latest price

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How much oil will come out of an oil field? Is it worth developing once it is discovered? These are not trivial questions if you must drill and complete your wells in deep water offshore or on the broad Australian outback.

All of the major oil companies maintain core testing labs whose job it is to evaluate the oil producing potential of a given field based on the testing of exploratory oil cores. An oil core is a sample of the oil-bearing rock as obtained from exploratory drilling.

The idea is to subject the recovered core to down-hole temperatures and pressures, then measure the flow of fluids through it. Oil producing rock typically has the density and porosity of cement, so the study of fluid flow in these materials requires the ability to measure small differential pressures (just a few psi) at very high static pressures (several thousand psi).

Features:

• The oil core is prepared by fitting it into a special jacket that is heated to down-hole temperature.
• A special high pressure pump forces brine through the core.
• The static pressures around the core are typically 5000 to 10,000 psig.
• The core has sealing packers placed along its length at regular intervals.
• A Validyne variable reluctance transducer DP 303 is plumbed between the packed-off sections so that the pressure drop through the core rock as a function of flow rate can be measured.

Bestech Australia carries a complete range of Validyne differential pressure sensors and offers several of its models that have a full scale of little as 5 psi of differential pressure, while both ports of the transducer are at a static pressure of 10, 000 psig.

A carrier demodulator displays the differential pressure digitally in engineering units. The relationship between flow and pressure drop is a measure of the permeability of the oil producing formation, and this can be used to determine the amount of oil that can ultimately be brought into the well bore from the surrounding rock.

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To contact Bestech Australia about Differential Pressure Transducer & LED Display | Validyne use Get a quote.