Real-time imaging while drilling
First Claim
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1. A method of evaluating an earth formation, the method comprising:
- (a) conveying a formation evaluation (FE) sensor on a bottom-hole assembly (BHA) into a borehole in the formation;
(b) acquiring data indicative of a property of the earth formation using the FE sensor;
(c) defining a set of parameters characterizing an image of the data, at least a subset of the parameters being altered during the acquiring of the data;
(d) processing the data to produce a bitstream representative of the image using the defined parameters; and
(e) transmitting the bitstream to a surface location.
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Abstract
Measurements made by a formation evaluation sensor downhole are processed to produce an image and a bitstream characterizing the image is transmitted uphole. The parameters used in the downhole processing are dynamically alterable.
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Citations
28 Claims
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1. A method of evaluating an earth formation, the method comprising:
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(a) conveying a formation evaluation (FE) sensor on a bottom-hole assembly (BHA) into a borehole in the formation;
(b) acquiring data indicative of a property of the earth formation using the FE sensor;
(c) defining a set of parameters characterizing an image of the data, at least a subset of the parameters being altered during the acquiring of the data;
(d) processing the data to produce a bitstream representative of the image using the defined parameters; and
(e) transmitting the bitstream to a surface location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A system for evaluating an earth formation, the system comprising:
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(a) a formation evaluation (FE) sensor on a bottom-hole assembly (BHA) which is conveyed into a borehole in the formation, the FE sensor acquiring data indicative of a property of the earth formation;
(b) a processor which defines a set of parameters characterizing an image of the data, (c) a processor which alters at least a subset of the parameters during the acquiring of the data; and
(d) a downhole processor which;
(A) processes the data to produce a bitstream representative of the image using the defined parameters; and
(B) transmits the bitstream to a surface location. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A computer readable medium for use with an apparatus for evaluating an earth formation, the apparatus comprising:
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(a) a formation evaluation (FE) sensor on a bottom-hole assembly (BHA) which is conveyed into a borehole in the formation, the FE sensor acquiring data indicative of a property of the earth formation;
the medium comprising instructions which enable a downhole processor to;
(b) process the data to produce a bitstream representative of an image using defined parameters that are altered during the acquiring of the data; and
(c) transmit the bitstream to a surface location. - View Dependent Claims (28)
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Specification