Catonic drilling fluid improves ROP in reactive formations

Journal Article · Mon Jun 08 00:00:00 EDT 1992 · Oil and Gas Journal; (United States)

OSTI ID:5055081

Hamphill, T ^[1]; Velenziano, R; Bale, P ^[2]; Sketchler, B ^[3]

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1. Baroid Drilling Fluids, Inc., Houston, TX (US)
2. Baroid Drilling Fluids, Inc., New Orleans, LA (US)
3. Chevron U.S.A. Inc., New Orleans, LA (US)

A cationic water-based mud reduced bit balling and increased rates of penetration (ROP ) in several Gulf of Mexico wells where highly permeable sands and dispersive formation clays and shales typically cause drilling problems. The cationic polymers adsorb on the negatively charged sites on shales and clays and immediately inhibit reactive formation solids. The filtration and mud cake qualities illustrate that effective filtration control is obtainable with the cationic drilling fluid. This paper reports that field results indicate that the cationic polymer drilling fluid system: Improves shale stabilization in soft-to-medium hard shales; Minimizes or eliminates bit balling; Increases penetration rates in softer clays and shales, particularly when drilled with polycrystalline diamond compact (PDC) bits; Exhibits stable mud properties, including filtration control; Is tolerant of solids contamination; Exhibits good permeability plugging/filter cake characteristics; and, Is nontoxic.

• OSTI ID: 5055081
• Journal Information: Oil and Gas Journal; (United States), Vol. 90:23; ISSN 0030-1388
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
DRILLING FLUIDS
OPTIMIZATION
GULF OF MEXICO
WELL DRILLING
OIL WELLS
ENHANCED RECOVERY
CATIONS
CHEMICAL COMPOSITION
CLAYS
DRILL BITS
FILTRATION
FLUID FLOW
PERMEABILITY
POLYMERS
WELL STIMULATION
ATLANTIC OCEAN
CARIBBEAN SEA
CHARGED PARTICLES
DRILLING
DRILLING EQUIPMENT
EQUIPMENT
FLUIDS
IONS
SEAS
SEPARATION PROCESSES
STIMULATION
SURFACE WATERS
WELLS
020300* - Petroleum- Drilling & Production