1976/08/09 by Joseph Polchinski, Richard E. Walker
Engineering · Physics and Astronomy · #Black Holes and Theoretical Physics #Drilling and Well Engineering #Hydraulic Fracturing and Reservoir Analysis #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Reservoir Engineering and Simulation Methods #hep-th
paper · pdf · doi:10.1103/physrevlett.74.638
published as Phys.Rev.Lett.74:638-641,1995 · 10 pages, 2 figures, LaTeX (author's name added)
openalex publication_date 1976/08/09 · arxiv created 1994/09/28 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
Almost every well optimizes mechanical factors to produce the best drilling rate. Only a few optimize fluid properties. This series approaches mud properties as additional variables which can be used to increase drill rates, even when the mechanical variables are already optimized. The series uses a concept, operating window, which graphically defines an envelope of safe operating and mud conditions. As long as mud characteristics and flow rate can be made to fall within the envelope, then all mud functions will be performed adequately, and hole problems will be at minimum. This first part defines variables which should be optimized, and their place on the operating window graph.