Downhole mud properties complicate drilling hydraulics

Journal Article · Wed Oct 01 04:00:00 EDT 1986 · Drilling-DCW; (United States)

OSTI ID:6130390

Leyendecker, E A; Bruton, J R

This paper explains that wellsite parameters such as penetration rate, hole cleaning, hole erosion and overall wellbore stability are directly related to the hydraulic conditions occurring while drilling. Drilling hydraulics, in turn, are largely a function of the drilling mud's properties, primarily viscosity and density. Accurate pressure loss calculations are necessary to maximize bit horse-power and penetration rates. Also, annular pressure loss measurements are important to record equivalent circulating densities, particularly when drilling near balanced formation pressures or when approaching formation fracture pressures. Determination of the laminar, transitional or turbulent flow regimes will help ensure the mud will remove drill cuttings from the wellbore and minimize hole erosion.

• Research Organization: Magcobar North American Div., Dresser Industries
• OSTI ID: 6130390
• Journal Information: Drilling-DCW; (United States), Journal Name: Drilling-DCW; (United States) Vol. 47:10; ISSN DRDCD
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
BOREHOLES
CAVITIES
CLEANING
CUTTINGS REMOVAL
DENSITY
DRILL BITS
DRILLING
DRILLING EQUIPMENT
DRILLING FLUIDS
EQUIPMENT
FLUID FLOW
FLUID MECHANICS
FLUIDS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
HYDRAULICS
LAMINAR FLOW
MECHANICS
NATURAL GAS WELLS
OIL WELLS
PHYSICAL PROPERTIES
PRESSURE DROP
PRESSURE MEASUREMENT
REMOVAL
RESERVOIR PRESSURE
ROCK DRILLING
TRANSITION FLOW
TURBULENT FLOW
VISCOSITY
WELL PRESSURE
WELLS