Method of exploration for hydrocarbons
First Claim
1. A method of producing a depth correlated record of the earth'"'"'s subsurface using core cuts as a well is being drilled, comprising:
- (a) within a core analysis facility adjacent the well, analyzing substantially all lithologies represented within the core taken from substantially the entire length of the wellbore to obtain a measurement of physical properties thereof promptly after the core is removed from the well; and
(b) producing a depth correlated record of the physical properties.
2 Assignments
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Accused Products
Abstract
A method of exploring for hydrocarbons is disclosed wherein core is obtained over substantially the entire length of a well and substantially all lithologies represented within the core are analyzed at a core analysis facility located adjacent the well. A measurement of a plurality of physical properties of the core are made promptly after the core is removed from the well. Thereafter, from the measurement of these physical properties, a depth correlated record is generated, and is used (a) to adjust the drilling plan for that well while it is being drilled, (b) used as inputs into other exploration processes, such as seismic surveys, magnetic surveys and gravity surveys, or (c) used for correlation with other depth correlated records obtained from other wells.
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Citations
14 Claims
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1. A method of producing a depth correlated record of the earth'"'"'s subsurface using core cuts as a well is being drilled, comprising:
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(a) within a core analysis facility adjacent the well, analyzing substantially all lithologies represented within the core taken from substantially the entire length of the wellbore to obtain a measurement of physical properties thereof promptly after the core is removed from the well; and (b) producing a depth correlated record of the physical properties. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A core analysis facility for use adjacent a well to produce a depth correlated record of the earth'"'"'s subsurface, comprising:
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means for analyzing substantially all lithologies represented within a core removed from substantially the entire length of a well to obtain a measurement of physical properties thereof promptly after the core is removed from the well, and means for producing a depth correlated record of the physical properties. - View Dependent Claims (8)
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9. A method of exploring for hydrocarbons, comprising:
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(a) developing a representation of the earth'"'"'s subsurface; (b) developing a well drilling plan from the representation of the earth'"'"'s subsurface; (c) drilling a wellbore to penetrate the earth'"'"'s subsurface in accordance with the drilling plan; (d) obtaining a core over substantially the entire length of the wellbore; (e) analyzing substantially all lithologies represented within the core at a location adjacent the wellbore to obtain a plurality of physical properties thereof; (f) revising the representation of the earth'"'"'s subsurface from the obtained plurality of physical properties; (g) revising the drilling plan for the wellbore in response to the revisions in the representation of the physical properties of the earth'"'"'s subsurface; and (h) drilling the wellbore in accordance with the revised drilling plan. - View Dependent Claims (10, 11)
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12. A method of exploring for hydrocarbons comprising:
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(a) obtaining a depth correlated record of at least one physical property of a core taken from substantially the entire length of a wellbore analyzed at a core analysis facility adjacent a first well from which the core was obtained and analyzed promptly after the core is removed from the first well; (b) obtaining a depth correlated record of the at least one physical property from a wireline log passed through a second well; and (c) comparing similar indicated subsurface features from the record of step (a) to a record of step (b). - View Dependent Claims (13, 14)
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Specification