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December 1, 1960Transactions of the AIME

Design and Operation of Jet-Bit Programs For Maximum Hydraulic Horsepower, Impact Force or Jet Velocity

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Authors

HKH.A. KendallWGW.C. Goins

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Overview

Engineering analysis demonstrates optimized jet-bit hydraulic parameters across drilling depths, indicating how to maximize rig pump efficiency and penetration rates.

Key Points

  • Develop an overarching analytical framework to design jet-bit hydraulic programs that maximize bit hydraulic horsepower, impact force, or jet velocity across all drilling depths.
  • Modeled operational boundaries dictated by surface pump limits, piping friction losses, borehole geometry, and minimum circulation rates for cuttings removal.
  • Formulated operational ranges and a graphical method to select nozzle sizes, flow rates, and surface pressures using standard hydraulic tables.
  • Identified that contemporary field practices frequently utilized as little as 50% of available hydraulic energy at the drill bit.
  • Established specific operational ranges and nozzle selection rules that maintain maximum attainable horsepower, impact force, or velocity from the surface to total depth.
  • Provided distinct hydraulic procedures that allow field tests to isolate and determine the relative influence of horsepower, impact force, and jet velocity on penetration rates.

Cite This Study

Kendall et al. (1960) studied this question.

synapsesocial.com/papers/6a7154c731a3df82432987fahttps://doi.org/10.2118/1288-g
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