Associative polymers for mobility control in enhanced oil recovery: First annual report for the period October 1985-October 1986. [Copolymers of acrylamide with analogs of 3-acrylamide-3-methylbutanoate]
Research during FY-86 has been centered on synthesis, characterization, and rheology of copolymers of acrylamide (AM) with analogs of 3-acrylamido-3-methylbutanoate (AMB). Emphasis during the initial phase of this work has been directed toward placement of hydrophobic substituents along the polymer backbone which would allow intermolecular associations to occur at low polymer concentration. Comparisons of N-substituted AMB and unsubstituted copolymers prepared under a previous grant are being made. Of special interest are the viscosity behavior and the electrolyte tolerance. Rheological, potentiometry, and ion binding studies of the substituted models indicate less tolerance to calcium ions than the NaAMB/AM system and support the proposed intramolecular chelation we suggested previously (DOE/BC/10321-20). Solution behavior has been studied as a function of microstructure and molecular weight for N-substituted AMB/AM copolymers utilizing potentiometry, turbidimetry in conjunction with C-13 NMR and low angle laser light scattering. N-propyl-substituted NaAMB/AM copolymers have shown surfactant-like characteristics including the ability to emulsify hydrocarbons and greatly enhance solution viscosity in aqueous solution. Further studies on these and other N-substituted acrylamido systems are planned for FY-87. We have continued to advance our EOR polymer characterization capability. A new variable angle laser light scattering apparatus has been designed and is presently being assembled. In the past, we were restricted to a technically obsolete low angle laser light scattering spectrophotometer. The new scattering device should provide a much higher signal to noise ratio, and thus, provide more accurate EOR polymer characterization.
- Research Organization:
- University of Southern Mississippi, Hattiesburg (USA). Dept. of Polymer Science
- DOE Contract Number:
- AC19-85BC10844
- OSTI ID:
- 7001561
- Report Number(s):
- DOE/BC/10844-5; ON: DE87001218
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
Similar Records
Responsive copolymers for enhanced petroleum recovery. Second annual report
Responsive copolymers for enhanced petroleum recovery. Annual report
Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COPOLYMERS
RHEOLOGY
STRUCTURAL CHEMICAL ANALYSIS
SYNTHESIS
DISPLACEMENT FLUIDS
REAGENTS
MOBILITY
CONTROL
ACRYLAMIDE
CARBON 13
ENHANCED RECOVERY
EXPERIMENTAL DATA
FLUID INJECTION
LASERS
LIGHT SCATTERING
MICROSTRUCTURE
NMR SPECTRA
OIL WELLS
PETROLEUM
POTENTIOMETRY
VISCOSITY
AMIDES
CARBON ISOTOPES
CRYSTAL STRUCTURE
DATA
ENERGY SOURCES
EVEN-ODD NUCLEI
FLUIDS
FOSSIL FUELS
FUELS
INFORMATION
ISOTOPES
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC POLYMERS
POLYMERS
RECOVERY
SCATTERING
SPECTRA
STABLE ISOTOPES
TITRATION
WELLS
020300* - Petroleum- Drilling & Production
400201 - Chemical & Physicochemical Properties