Improved CO/sub 2/ enhanced oil recovery mobility control by in-situ chemical precipitation: Annual report for the period September 1985 to September 1986
The objective of this study is to develop a process that will increase ultimate oil recovery and will improve the operational economics of CO/sub 2/ flooding over current state-of-the-art practices. The specific goals of the research work are: to determine and evaluate the optimum conditions and materials for chemical precipitation over a realistic range of reservoir pressures and temperatures; to evaluate the permeability alteration by in-situ chemical precipitation in core samples; to extend the laboratory results to predict the outcome of the field application by modeling and computer simulation; and to determine the expected increase oil recovery through application of the in-situ precipitation to a specific target reservoir. During year one, the following tasks and subtask were completed: Task I - technology review; Task II - experimental design, construction and calibration; and subtask I - precipitation formation of Task III. Accomplishments for these tasks are discussed. The comparison of the ambient and PVT cell test results of precipitation formation indicate that both CaCl/sub 2/ and BaCl/sub 2/ have potential for use in core tests. However, at this time the BaCl/sub 2/ appears to be the better choice. 4 tabs.
- Research Organization:
- West Virginia Univ., Morgantown (USA)
- DOE Contract Number:
- AC21-85MC22044
- OSTI ID:
- 6909095
- Report Number(s):
- DOE/MC/22044-3; ON: DE87005310
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Improved CO sub 2 enhanced oil recovery -- Mobility control by in-situ chemical precipitation
Related Subjects
BARIUM CARBONATES
PRECIPITATION
BARIUM CHLORIDES
CHEMICAL REACTIONS
CALCIUM CARBONATES
CALCIUM CHLORIDES
CARBON DIOXIDE
CARBON DIOXIDE INJECTION
BENCH-SCALE EXPERIMENTS
MOBILITY
CONTROL
ENHANCED RECOVERY
EXPERIMENTAL DATA
OIL WELLS
PERMEABILITY
PETROLEUM
PH VALUE
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CALCIUM COMPOUNDS
CALCIUM HALIDES
CARBON COMPOUNDS
CARBON OXIDES
CARBONATES
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
DATA
ENERGY SOURCES
FLUID INJECTION
FOSSIL FUELS
FUELS
HALIDES
HALOGEN COMPOUNDS
INFORMATION
MISCIBLE-PHASE DISPLACEMENT
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RECOVERY
SEPARATION PROCESSES
WELLS
020300* - Petroleum- Drilling & Production