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Hydraulics Summary to optimization of drill bit hydraulics

Jalal Neshat
Jalal Neshat

This document contains a table with specifications for water wells at different depths, including metrics like depth, mud weight, nozzle configuration, total flow area, flow rate, sand production potential, and hole-cleaning index. The table shows these metrics for wells ranging from 1966 to 2618 meters deep, with 140 to 144 pounds per cubic foot mud weight, and various nozzle configurations between 13/16 and 16 inches. It concludes by noting the ideal range for hole-cleaning index is 2 to 8 for a 12 1/4 inch hole.

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Depth (m) MW (pcf) Nozzles TFA (in2) F.R (GPM) SPP H.S.I 1966 135 613 0.778 525 2500 2 2300 140 613 0.778 476 2500 1.5 2618 144 613 0.778 438 2500 1.2 1966 135 313+314 0.84 540 2500 1.8 2300 140 313+314 0.84 487 2500 1.4 2618 144 313+314 0.84 447 2500 1.1 1966 135 614 0.902 552 2500 1.7 2300 140 614 0.902 497 2500 1.3 2618 144 614 0.902 455 2500 1 1966 135 314+315 0.969 564 2500 1.6 2300 140 314+315 0.969 506 2500 1.2 2618 144 314+315 0.969 462 2500 0.9 1966 135 414+216 0.994 568 2500 1.5 2300 140 414+216 0.994 510 2500 1.1 2618 144 414+216 0.994 465 2500 0.9 1966 135 414 0.601 470 2500 2.4 2300 140 414 0.601 446 2500 2 2618 144 414 0.601 401 2500 1.6 1966 135 416 0.785 527 2500 2 2300 140 416 0.785 477 2500 1.5 2618 144 416 0.785 440 2500 1.2 Depth (m) MW (pcf) Nozzles TFA (in2) F.R (GPM) SPP H.S.I 2618 144 613 0.778 438 2500 1.2 2618 144 313+314 0.84 447 2500 1.1 2618 144 614 0.902 455 2500 1 2618 144 314+315 0.969 462 2500 0.9 2618 144 414+216 0.994 465 2500 0.9 2618 144 414 0.601 401 2500 1.6 2618 144 4x16 0.785 440 2500 1.2 *Based on rule of thumb, H.S.I in 12-1/4 HS should be 2-8.

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Hydraulics Summary to optimization of drill bit hydraulics

  • 1. Depth (m) MW (pcf) Nozzles TFA (in2) F.R (GPM) SPP H.S.I 1966 135 613 0.778 525 2500 2 2300 140 613 0.778 476 2500 1.5 2618 144 613 0.778 438 2500 1.2 1966 135 313+314 0.84 540 2500 1.8 2300 140 313+314 0.84 487 2500 1.4 2618 144 313+314 0.84 447 2500 1.1 1966 135 614 0.902 552 2500 1.7 2300 140 614 0.902 497 2500 1.3 2618 144 614 0.902 455 2500 1 1966 135 314+315 0.969 564 2500 1.6 2300 140 314+315 0.969 506 2500 1.2 2618 144 314+315 0.969 462 2500 0.9 1966 135 414+216 0.994 568 2500 1.5 2300 140 414+216 0.994 510 2500 1.1 2618 144 414+216 0.994 465 2500 0.9 1966 135 414 0.601 470 2500 2.4 2300 140 414 0.601 446 2500 2 2618 144 414 0.601 401 2500 1.6 1966 135 416 0.785 527 2500 2 2300 140 416 0.785 477 2500 1.5 2618 144 416 0.785 440 2500 1.2 Depth (m) MW (pcf) Nozzles TFA (in2) F.R (GPM) SPP H.S.I 2618 144 613 0.778 438 2500 1.2 2618 144 313+314 0.84 447 2500 1.1 2618 144 614 0.902 455 2500 1 2618 144 314+315 0.969 462 2500 0.9 2618 144 414+216 0.994 465 2500 0.9 2618 144 414 0.601 401 2500 1.6 2618 144 4x16 0.785 440 2500 1.2 *Based on rule of thumb, H.S.I in 12-1/4 HS should be 2-8.