Scipediacontent: Scipediacontent moved page Review 802387556387 to Chen et al 2026a

2026-01-26T11:38:22Z

Scipediacontent moved page Review 802387556387 to Chen et al 2026a

JSanchez: JSanchez moved page Draft Sanchez Pinedo 435157389 to Review 802387556387

2026-01-26T09:32:03Z

JSanchez moved page Draft Sanchez Pinedo 435157389 to Review 802387556387

JSanchez: Created page with " == Abstract ==
The conventional approach to drill bit selection primarily relies on the performance records of bits used in adjacent wells, where the bestperforming bit i..."

2026-01-26T09:31:56Z

Created page with " == Abstract == <p>The conventional approach to drill bit selection primarily relies on the performance records of bits used in adjacent wells, where the bestperforming bit i..."

New page

== Abstract ==

<p>The conventional approach to drill bit selection primarily relies on the performance records of bits used in adjacent wells, where the bestperforming bit in each formation is selected for the corresponding zone to be drilled. However, this method does not take into account the lithology and rock mechanical properties of all relevant wells, nor can it evaluate the adaptability of a particular bit type to different intervals. As a result, it fails to fully ensure an optimal match between the bit and the formation, thus exhibiting significant limitations. To address these issues, this paper proposes a bit optimization method based on grey clustering and grey correlation analysis. This method comprehensively considers the influence of rock mechanics parameters on formation drillability and quantitatively evaluates the similarity in drilling resistance between the target formation and previously drilled intervals using grey clustering. This approach breaks away from the traditional constraint of limited bit options for a specific formation grade. Instead, it screens all previously used bit types to construct a candidate bit library for the target zone. Subsequently, the grey correlation method is applied to assess the candidate bits using multiple indicators that reflect bit performance. This enables the optimization of bit types for various target zones. Field applications demonstrate that the new bit selection method effectively improves upon the conventional practices by enhancing the flexibility and scientific basis of bit selection, and has yielded favorable results in actual drilling operations.OPEN ACCESS Received: 28/07/2025 Accepted: 16/10/2025 Published: 23/01/2026</p>

== Document ==
<pdf>Media:Draft_Sanchez Pinedo_435157389-9768-document.pdf</pdf>

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Chen et al 2026a - Revision history

Scipediacontent: Scipediacontent moved page Review 802387556387 to Chen et al 2026a

JSanchez: JSanchez moved page Draft Sanchez Pinedo 435157389 to Review 802387556387

JSanchez: Created page with " == Abstract == The conventional approach to drill bit selection primarily relies on the performance records of bits used in adjacent wells, where the bestperforming bit i..."

JSanchez: Created page with " == Abstract ==
The conventional approach to drill bit selection primarily relies on the performance records of bits used in adjacent wells, where the bestperforming bit i..."