Coordinated studies in support of hydraulic fracturing of coalbed methane. Annual report, November 1991-December 1992

Technical Report · Thu Apr 01 04:00:00 EST 1993

OSTI ID:6124798

The purpose of the work is to characterize common and potential fracturing fluids in terms of coal-fluid interactions to identify reasons for less than satisfactory performance and to ultimately devise alternative fluids and treatment procedures to optimize production following hydraulic fracturing. The laboratory data reported herein has proven helpful in designing improved hydraulic fracturing treatments and remedial treatments in the Black Warrior Basin. Acid inhibitors, scale inhibitors, additives to improve coal relative permeability to gas, and non-damaging polymer systems for hydraulic fracturing have been screened in coal damage tests. The optimum conditions for creating field-like foams in the laboratory have been explored. Tests have been run to identify minimum polymer and surfactant concentrations for applications of foam in coal. The roll of 100 mesh sand in controlling leakoff and impairing conductivity in coal has been investigated.

• Research Organization: STIM-LAB, Inc., Duncan, OK (United States)
• OSTI ID: 6124798
• Report Number(s): PB-93-221505/XAB; CNN: GRI-5090-214-1983
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
012031* -- Coal
Lignite
& Peat-- Underground Mining-- Strata Mechanics & Control-- (1987-)
012033 -- Coal
Lignite
& Peat-- Underground Mining-- Mine Environment-- (1987-)
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
ADDITIVES
ALKANES
COAL DEPOSITS
COAL SEAMS
COLLOIDS
DISPERSIONS
FLUID MECHANICS
FLUIDS
FOAMS
FORMATION DAMAGE
FRACTURING
FRACTURING FLUIDS
GEOLOGIC DEPOSITS
HYDRAULIC FRACTURING
HYDRAULICS
HYDROCARBONS
LEAKS
LOSSES
MECHANICS
METHANE
MINERAL RESOURCES
OPTIMIZATION
ORGANIC COMPOUNDS
PERMEABILITY
PHYSICAL PROPERTIES
PROPPING AGENTS
REMEDIAL ACTION
RESOURCES
SAND
SURFACTANTS