DOWNHOLE SURVEYING UTILIZING MULTIPLE MEASUREMENTS
First Claim
1. A method of controlling a drill string, comprising:
- receiving one or more first signals from a first sensor package mounted in a first portion of the drill string at a first position within a wellbore, the first signals indicative of an orientation of the first portion of the drill string relative to the Earth;
receiving one or more second signals from a second sensor package mounted in a second portion of the drill string at a second position within the wellbore, the second signals indicative of an orientation of the second portion of the drill string relative to the Earth, the drill string adapted to bend between the first portion and the second portion; and
calculating a first amount of bend between the first portion and the second portion in response to the first signals and the second signals.
1 Assignment
0 Petitions
Accused Products
Abstract
Systems and methods for controlling a drill string are provided. A method comprises receiving one or more first signals from a first sensor package mounted in a first portion of the drill string at a first position within a wellbore. The first signals may be indicative of an orientation of the first portion of the drill string. The method also includes receiving one or more second signals from a second sensor package mounted in a second portion of the drill string at a second position within the wellbore. In certain embodiments, the second signals indicative of an orientation of the second portion of the drill string. The drill string may be adapted to bend between the first portion and the second portion and certain embodiments include calculating a first amount of bend between the first portion and the second portion in response to the first signals and the second signals.
-
Citations
21 Claims
-
1. A method of controlling a drill string, comprising:
-
receiving one or more first signals from a first sensor package mounted in a first portion of the drill string at a first position within a wellbore, the first signals indicative of an orientation of the first portion of the drill string relative to the Earth; receiving one or more second signals from a second sensor package mounted in a second portion of the drill string at a second position within the wellbore, the second signals indicative of an orientation of the second portion of the drill string relative to the Earth, the drill string adapted to bend between the first portion and the second portion; and calculating a first amount of bend between the first portion and the second portion in response to the first signals and the second signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A drill string, comprising:
-
a downhole portion adapted to move within a wellbore, the downhole portion having a first portion at a first position within the wellbore and a second portion at a second position within the wellbore, the downhole portion adapted to bend between the first portion and the second portion; a first sensor package mounted within the first portion, the first sensor package sensor adapted to generate a first measurement indicative of an orientation of the first portion relative to the Earth; and a second sensor package mounted within the second portion, the second sensor package adapted to generate a second measurement indicative of an orientation of the second portion relative to the Earth; and a controller configured to calculate an amount of bend between the first portion and the second portion in response to the first measurement and the second measurement. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
-
Specification