SYSTEM AND METHOD FOR MONITORING STRAIN & PRESSURE
First Claim
1. A method for detecting the effect of a well treatment performed in a first well, comprising the steps of:
- a) installing at least one distributed acoustic strain sensor in at least one monitoring well, said monitoring well being a known distance from the first well;
b) initiating a well treatment on the first well;
c) monitoring the formation surrounding the monitoring well using the distributed acoustic strain sensor;
d) using the distributed acoustic strain sensor, detecting a change in strain or pressure at a first location in the monitoring well; and
e) using the change in strain detected in step d) to make determinations about the well treatment in step b).
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Abstract
A method for monitoring a well treatment, comprising the steps of installing at least one distributed acoustic strain sensor in at least one monitoring well, said monitoring well being a known distance from the treatment well, initiating a well treatment on the first well, monitoring the formation surrounding the monitoring well using the distributed acoustic strain sensor, and using the distributed acoustic strain sensor, detecting a change in strain at a first location in the monitoring well, using the change in strain to make determinations about the well treatment. The sensor may comprise a fiber optic cable. The change in strain may be used as an indicator that the effect of the well treatment has extended beyond a predetermined preferred treatment zone, the treatment may be a fracture treatment, and the well treatment may be controlled or ceased based on the determinations made in step e).
59 Citations
10 Claims
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1. A method for detecting the effect of a well treatment performed in a first well, comprising the steps of:
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a) installing at least one distributed acoustic strain sensor in at least one monitoring well, said monitoring well being a known distance from the first well; b) initiating a well treatment on the first well; c) monitoring the formation surrounding the monitoring well using the distributed acoustic strain sensor; d) using the distributed acoustic strain sensor, detecting a change in strain or pressure at a first location in the monitoring well; and e) using the change in strain detected in step d) to make determinations about the well treatment in step b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification