Boring or penetrating the earth – With signaling – indicating – testing or measuring – Measuring or indicating drilling fluid rate of flow
Patent
1996-07-22
1998-03-24
Tsay, Frank
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Measuring or indicating drilling fluid rate of flow
175206, E21B 4704
Patent
active
057302332
ABSTRACT:
A method for detecting changes in the rate of discharge of fluid from a well bore. Firstly, providing a flow nipple having a first end, a second end, and a flow line connection extending substantially radially from the flow nipple intermediate the first end and the second end. Secondly, providing a drilling fluid treatment tank. Thirdly, providing a flow line having a first end and a second end. The first end is connected to the flow line connection of the flow nipple and the second end to the drilling fluid treatment tank. This creates a flow path for drilling fluids from the flow nipple along the flow line to the drilling fluid treatment tank. Fourthly, providing an elongate antechamber adjoining one of the flow nipple, the flow line or the drilling fluid treatment tank. The elongate antechamber has a first end and a second end. The first end is positioned in fluid communication with the flow path. The second end extends above the flow path, such that the second end of the elongate antechamber is free of drilling fluid unless a sudden increase in flow rate results in an influx of drilling fluid into the elongate antechamber. Fifthly, positioning a fluid sensing probe in the elongate antechamber. The fluid sensing probe is spaced from and extends toward the first end of the elongate antechamber, such that the fluid sensing probe provides a reading of the level of drilling fluid in the elongate antechamber.
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Alberta Industrial Technologies Ltd.
Lambert Anthony R.
Tsay Frank
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