Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Reexamination Certificate
2005-08-23
2005-08-23
Barlow, John (Department: 2863)
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Indicating, testing or measuring a condition of the formation
C702S007000
Reexamination Certificate
active
06932167
ABSTRACT:
A compression scheme for reducing the amount of data that must be transmitted uplink from a formation test while drilling apparatus. Periodic samples are taken within the formation test apparatus and prior to transmitting data uplink, the samples are analyzed to generate curve fit parameters that define a curve that most closely fits the sampled data. A minimal set a data points, time variables, and curve fit parameters are transmitted to the surface where the transmitted data is used to reconstruct the formation pressure test curve. A quality of fit value is also transmitted with the minimal data set as an indication of the quality of the fit between the reconstructed data and the actually sampled data points.
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Golla Christopher A.
Proett Mark A.
Simeonov Svetozar D.
Weintraub Preston N.
Barlow John
Conley & Rose, P.C.
Halliburton Energy Service,s Inc.
Taylor Victor J.
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