Methods and apparatus for using formation property data
First Claim
1. A method of using a formation property, the method comprising:
- disposing a bottom hole assembly adjacent the distal end of a drill string, the bottom hole assembly having;
a drill bit; and
a formation tester tool having an extendable probe and a first sensor, the extendable probe including a first member extendable beyond the formation testertool and a snorkel extendable beyond the first member;
drilling a borehole to a first depth;
extending the probe first member to engage a formation;
extending the probe snorkel to couple to the formation;
measuring a formation property; and
adjusting a downhole parameter if the formation property differs from a known value.
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Accused Products
Abstract
This application relates to various methods and apparatus for rapidly obtaining accurate formation property data from a drilled earthen borehole. Once obtained, the formation property data, including formation fluid pressure, may be corrected, calibrated and supplemented using various other data and techniques disclosed herein. Furthermore, the formation property data may be used for numerous other purposes. For example, the data may be used to correct or supplement other information gathered from the borehole; it may be used to supplement formation images or models; or, it may be used to adjust a drilling or producing parameter. Various other uses of accurately and quickly obtained formation property data are also disclosed.
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Citations
22 Claims
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1. A method of using a formation property, the method comprising:
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disposing a bottom hole assembly adjacent the distal end of a drill string, the bottom hole assembly having; a drill bit; and a formation tester tool having an extendable probe and a first sensor, the extendable probe including a first member extendable beyond the formation tester tool and a snorkel extendable beyond the first member; drilling a borehole to a first depth; extending the probe first member to engage a formation; extending the probe snorkel to couple to the formation; measuring a formation property; and adjusting a downhole parameter if the formation property differs from a known value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of using a formation property, the method comprising:
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disposing a bottom hole assembly adjacent the distal end of a drill string, the bottom hole assembly having; a drill bit; and a formation tester tool having an extendable probe and a first sensor, the extendable probe including a first member extendable beyond the formation tester tool and a snorkel extendable beyond the first member; drilling a borehole to a first depth; extending the probe first member to engage a formation; extending the probe snorkel to couple to the formation; measuring a formation property; communicating the formation property to a known formation description data set during drilling of the borehole; and adjusting the known formation description data set in response to the formation property during drilling of the borehole. - View Dependent Claims (15, 16, 17, 18)
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19. A method of using a formation property, the method comprising:
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disposing a drill collar in a borehole at a first depth, the drill collar comprising a formation tester tool, a formation probe assembly, and a first sensor; measuring a first formation property at a first location at the first depth with said drill collar; measuring a second formation property at a second location at the first depth with said drill collar; and manipulating the first and second formation properties to obtain downhole information. - View Dependent Claims (20, 21, 22)
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Specification