Multiple distributed pressure measurements
Methods, computer programs, and systems for detecting at least one downhole condition are disclosed. Pressures are measured at a plurality of locations along the drillstring. The drillstring includes a drillpipe. At least one of the pressures is measured along the drillpipe. At least one downhole condition is detected based, at least in part, on at least one measured pressure.
1. A measurement-while-drilling system for collecting and analyzing one or more pressures, comprising:
a plurality of pressure sensors to measure pressures at a drillstring, wherein the drillstring comprises drillpipe, and wherein at least one pressure sensor is on or within the drillpipe; and
a processor to:
generate a first set of measured-value pressures and a second set of measured-value pressures, each based, at least in part, on at least one measured pressure, wherein the first set of measured-value pressures and the second set of measured-value pressures correspond to a first time and a second time, respectively; and
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second set of measured-value pressures; and
wherein at least one of the pressure sensors is coupled to the processor.
2. The measurement-while-drilling system of claim 1 , wherein the first set of measured-value pressures further corresponds to a first depth and the second set of measured-value pressures further corresponds to a second depth, and wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding depths of the first and second set of measured-value pressures.
3. The measurement-while-drilling system of claim 1 , wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second measured-value sets of pressures in a graphical format to an operator.
4. The measurement-while-drilling system of claim 1 , wherein the processor is further to:
present together the first measured-value set of pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second measured-value sets of pressures as a series of plots to an operator.
5. The measurement-while-drilling system of claim 1 , wherein the processor is further to:
generate sets of expected-value pressures.
6. The measurement-while-drilling system of claim 5 , wherein the processor is further to:
present together the first and second sets of measured-value pressures and the sets of expected-value pressures.
7. A method of collecting and analyzing one or more pressures, the method implemented, at least in part, in a computer system comprising at least one processor, the method comprising:
measuring pressures at a plurality of locations along a drillstring using a plurality of pressure sensors, the drillstring comprising drillpipe, and wherein at least one pressure sensor is on or within the drillpipe;
generating a first set of measured-value pressures based, at least in part, on at least one measured pressure;
generating a second set of measured-value pressures based, at least in part, on at least one measure pressure, wherein the first set of measured-value pressures and the second set of measured-value pressures correspond to a first time and a second time, respectively and
presenting together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second sets of measured-value pressures.
8. The method of claim 7 , wherein the first set of measured-value pressures further corresponds to a first depth and the second set of measured-value pressures further corresponds to a second depth, and wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding depths of the first and second sets of measured-value pressures.
9. The method of claim 7 , further comprising:
presenting together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second sets of measured-value pressures in a graphical format to an operator.
10. The method of claim 7 , further comprising:
presenting together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second sets of measured-value pressures as a series of plots to an operator.
11. The method of claim 7 , further comprising:
generating sets of expected-value pressures.
12. The method of claim 11 , further comprising:
presenting together the first and second sets of measured-value pressures and the sets of expected-value pressures.
13. The method of claim 12 , wherein the presentation of the first and second sets of measured-value pressures and the sets of expected-value pressures is over corresponding depths.
14. A measurement-while-drilling system for collecting and analyzing one or more pressures, comprising:
a plurality of pressure sensors to measure pressures at a drillstring, wherein the drillstrng comprises drillpipe, and wherein at least one pressure sensor is on or within the drillpipe; and
a processor to:
generate a first set of measured-value pressures and a second set of measured-value pressures, each based, at least in part, on at least one measured pressure, wherein the first set of measured-value pressures and the second set of measured-value pressures correspond to a first depth and a second depth, respectively; and
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding depths of the first and second set of measured-value pressures; and
wherein at least one of the pressure sensors is coupled to the processor.
15. The measurement-while-drilling system of claim 14 , wherein the first set of measured-value pressures further corresponds to a first time and the second set of measured-value pressures further corresponds to a second time, and wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding times of the first and second set of measured-value pressures.
16. The measurement-while-drilling system of claim 14 , wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding depths of the first and second set of measured-value pressures in a graphical format.
17. The measurement-while-drilling system of claim 14 , wherein the processor is further to:
present together the first set of measured-value pressures and the second set of measured-value pressures along with a representation of the corresponding depths of the first and second set of measured-value pressures as a series of plots.