Polyacrylamide/potassium-chloride mud for drilling water-sensitive shales

Conference · Tue Jun 01 04:00:00 EDT 1976 · J. Pet. Technol.; (United States)

OSTI ID:7150255

Clark, R K; Scheuerman, R F; Rath, H; Van Laar, H G

A shale-protective, water-base drilling fluid containing a high molecular-weight, partially hydrolyzed polyacrylamide and potassium chloride has been used in many wells around the world. A laboratory test for evaluating the ability of water-base muds to protect stressed shales under dynamic conditions was used in the initial development of the system. Field application of the polyacrylamide/potassium-chloride mud has been successful in stabilizing hard, sloughing shales in Canada and in reducing shale-related hole problems in several offshore areas. Recent use in the Canadian Arctic has extended the application to weighted muds for drilling soft, mud-producing shales.

• OSTI ID: 7150255
• Conference Information: Journal Name: J. Pet. Technol.; (United States) Journal Volume: 28
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
DRILLING
DRILLING FLUIDS
HALIDES
HALOGEN COMPOUNDS
METAMORPHIC ROCKS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
POLYAMIDES
POLYMERS
POTASSIUM CHLORIDES
POTASSIUM COMPOUNDS
ROCKS
SHALES
WELL DRILLING