Long shear fractures in CO/sub 2/ lines controlled by regulating saturation, arrest pressures

Journal Article · Fri Aug 01 00:00:00 EDT 1986 · Oil Gas J.; (United States)

OSTI ID:5302742

Maxey, W A

Long shear fractures in liquid CO/sub 2/ pipelines can be controlled by lowering the saturation pressure of the liquid or raising the arrest pressure of the line pipe, or doing both. This is the major conclusion of ductile fracture propagation tests conducted by Battelle Laboratories, Columbus, Ohio. The saturation pressure is reduced by lowering the operating temperature of the pipeline and by removing impurities with lower critical temperatures than CO/sub 2/. The arrest pressure of the pipeline can be elevated by increasing the wall thickness, by increasing the wall thickness, by increasing the material toughness, by decreasing the pipe diameter, by increasing the material's yield strength, or some combination thereof. The Battelle tests further suggested the precracked drop-weight-tear test (DWTT) impact energy as an improved measure of material toughness.

• Research Organization: Battelle-Columbus Div., Columbus, OH
• OSTI ID: 5302742
• Journal Information: Oil Gas J.; (United States), Vol. 84:31
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
42 ENGINEERING
CARBON DIOXIDE
TRANSPORT
CARBON DIOXIDE INJECTION
REAGENTS
OIL WELLS
PIPELINES
FRACTURE MECHANICS
PRESSURE CONTROL
BATTELLE COLUMBUS LABORATORY
CRITICAL TEMPERATURE
DUCTILITY
ENHANCED RECOVERY
FRACTURE PROPERTIES
IMPACT STRENGTH
IMPURITIES
LIQUIDS
MATERIALS TESTING
PETROLEUM
SHEAR
SIZE
TEMPERATURE CONTROL
THICKNESS
WALLS
WELL STIMULATION
YIELD STRENGTH
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL
DIMENSIONS
ENERGY SOURCES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
MECHANICAL PROPERTIES
MECHANICS
MISCIBLE-PHASE DISPLACEMENT
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RECOVERY
STIMULATION
TENSILE PROPERTIES
TESTING
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
WELLS
020300* - Petroleum- Drilling & Production
420205 - Engineering- Transport & Storage Facilities- (1980-)