An evaluation of lignosulfonate as a sacrificial adsorbate in surfactant flooding
A study was conducted to investigate the feasibility of using lignosulfonate as a sacrificial agent in the surfactant flooding process. An analytical technique based on high-performance liquid chromatography (HPLC) analysis was used to determine the concentration of lignosulfonate and petroleum sulfonate. Lignosulfonate and petroleum sulfonate adsorption isotherms were established and used to assess the sacrificial effect of lignosulfonate. A simple model to describe the ion exchange in the presence of lignosulfonate was developed. This model includes the association of cations with lignosulfonate. The main results of this study are as follows. First, surfactant loss can be reduced significantly (> 50% reduction) by pretreatment with a lignosulfonate preflush. However, no significant reduction is obtained when lignosulfonate is incorporated with the surfactant slug. Second, more cations are exchanged from the rock in the presence of lignosulfonate. This enhanced cation exchange is a result of the association of divalent cations with lignosulfonate. Third, lingosulfonate causes dissolution of soluble minerals to a much greater extent than brine or petroleum sulfonate, producing undesirable bivalent cations. Finally, the brine tolerance and optimal salinity of petroleum sulfonate are not greatly affected by lignosulfonate. From these laboratory results, we conclude that lignosulfonate has potential as a sacrificial adsorbate for surfactant flooding.
- Research Organization:
- Chevron Oil Field Research Co., La Habra, CA
- OSTI ID:
- 7062789
- Journal Information:
- SPE (Society of Petroleum Engineers) Reserv. Eng.; (United States), Journal Name: SPE (Society of Petroleum Engineers) Reserv. Eng.; (United States) Vol. 2:1; ISSN SREEE
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020300* -- Petroleum-- Drilling & Production
ADDITIVES
ADSORBENTS
ADSORPTION ISOTHERMS
BENCH-SCALE EXPERIMENTS
BRINES
CARBOHYDRATES
CATIONS
CHARGED PARTICLES
CHROMATOGRAPHY
DISSOLUTION
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FEASIBILITY STUDIES
FLUID INJECTION
FOSSIL FUELS
FUELS
ION EXCHANGE
IONS
ISOTHERMS
LIGNIN
LIQUID COLUMN CHROMATOGRAPHY
LOSSES
MATHEMATICAL MODELS
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
POLYSACCHARIDES
RECOVERY
ROCK-FLUID INTERACTIONS
SACCHARIDES
SALINITY
SEPARATION PROCESSES
SOLUBILITY
SORPTIVE PROPERTIES
STIMULATION
SULFONATES
SULFONIC ACID ESTERS
SURFACE PROPERTIES
SURFACTANTS
SWEEP EFFICIENCY
WATERFLOODING
WELL STIMULATION
WELLS