MSE-Based Borehole Grouping for Uniform Well Completion
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Solution Overview
Problem
Existing methods for grouping boreholes during well completion operations do not consider the varying rock properties among boreholes, leading to issues like limited injectivity, disproportionate treatment proppant flow split, overstimulation, and under stimulation, which increase costs and completion times.
Innovation Solution
Grouping boreholes based on Mechanical Specific Energy (MSE) values to determine a well completion scenario, including categorizing MSE values into different ranges representing rock facies and using statistical and granular assessments to optimize perforation, hydraulic fracturing fluid initiation pressure, and proppant selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If boreholes are grouped randomly or sequentially for well completion operations, then the completion process can be executed efficiently, but rock property differences cause limited injectivity, disproportionate proppant flow split, overstimulation, and under stimulation
Solution Approach 1:
The patent applies local quality by grouping boreholes based on their specific rock property characteristics (MSE values) rather than treating all boreholes uniformly. Boreholes are divided into groups according to their local rock facies and mechanical specific energy values, allowing each group to receive tailored completion treatments that match its specific rock properties, thereby resolving the contradiction between efficient completion and uniform stimulation.
Solution Approach 2:
The patent uses parameter changes by utilizing Mechanical Specific Energy (MSE) values as a key parameter to characterize rock properties and determine borehole grouping. By changing the grouping criterion from random/sequential to MSE-based classification, the system achieves both efficient completion operations and uniform stimulation across different rock types.
2Loss of time
If boreholes with different rock properties are grouped together for simultaneous fracturing, then completion time is reduced, but treatment proppant flow split becomes disproportionate
Solution Approach 1:
The patent resolves this contradiction by applying local quality through MSE-based grouping. Boreholes are grouped according to their specific rock property characteristics, allowing simultaneous fracturing to proceed efficiently while ensuring that proppant flow distribution remains proportional to each borehole's rock properties. This localized classification prevents disproportionate flow split while maintaining the time efficiency of simultaneous treatment.
3Device complexity
If boreholes are grouped without considering rock property differences, then the grouping process is simple, but overstimulation and under stimulation occur
Solution Approach 1:
The patent applies parameter changes by introducing MSE (Mechanical Specific Energy) values as a quantitative parameter to characterize rock properties. This parameter enables systematic grouping of boreholes based on their rock properties, ensuring adequate stimulation for each borehole while maintaining a manageable grouping process. The MSE parameter provides the necessary complexity to achieve reliable stimulation outcomes.
Data Source
AI summary
One or more methods are described for grouping two or more boreholes, and along with related systems and computer readable media. The method can include obtaining mechanical specific energy (MSE) values for each of a plurality of boreholes traversing one or more geological formations, grouping two or more boreholes of the plurality of boreholes based on MSE values, and determining one or more parameters of a well completion scenario for at least a portion of the first and second boreholes, based on the group on of boreholes. Also provided herein are one or more computer readable media having computer executable instructions that, when executed by at least one processor, cause the processor to the above method. Still further provided herein are one or more systems including at least one processor and the above computer readable media.