Measuring and testing – Borehole or drilling
Patent
1997-10-20
1999-09-14
Williams, Hezron
Measuring and testing
Borehole or drilling
7315246, 175 50, 364185, 16625001, E21B 4900, E21B 4400, G01V 140, H04H 900
Patent
active
059525690
ABSTRACT:
This invention describes methods and apparatus for identifying potentially hazardous events during the drilling or production of hydrocarbon reservoirs where such events include kick detection in a well, fluid influx from a drilled formation, sticking pipe in a borehole, pipe washouts or formation fracture generation, according to measurements made by instruments such as flowmeter paddles, electro-chemical transducers or MWD parameter sensors. Measured signals are compared to a number of possible signals and the probability for said measured signals representing such an event are determined.
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Jardine Stuart Inglis
Jervis Timothy Tristam
Kanak Wayne I.
Lee Peter Y.
Schlumberger Technology Corporation
Wiggins David J.
Williams Hezron
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