Method of mitigating risk of well collision in a field
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Abstract
A method and system for mitigating risk of well collision in a field includes receiving an anti-collision standard exemption request containing a description of risk of collision between a subject well and one or more offset wells, generating an assessment of the anti-collision standard exemption request using a stored multidimensional decision matrix, reviewing the assessment, and selectively updating the decision matrix based on the review.
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Citations
31 Claims
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1-13. -13. (canceled)
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14-22. -22. (canceled)
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23. A method of mitigating risk of subsurface well collision, comprising:
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establishing a multidimensional matrix, wherein each dimension is characterized by one or more parameters associated with a well, a well tool, a drilling rule, a subsurface characteristic, a surface characteristic or a well-to-well characteristic;
determining a parameter value for a subject well prior to or during drilling of the well, the value chosen for a parameter in the multidimensional matrix;
inputting the determined subject well parameter value to the multidimensional matrix to derive a cell within the matrix, the cell comprising an established parameter value corresponding to the input parameter value and an action parameter;
determining the action parameter in the derived matrix cell; and
assessing the action parameter to determine if action is required to mitigate risk of well collision between the subject well and and offset well. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30, 31)
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Specification