Tertiary oil recovery by carbon dioxide injection, Granny's Creek Field, West Virginia. Final report

Technical Report · Sat Oct 01 04:00:00 EDT 1983

OSTI ID:5737610

Conner, W D

During the period June 1976 through June 30, 1980, a field demonstration of oil recovery by CO/sub 2/ injection in Clay County, West Virginia was conducted. The objective of this test was to demonstrate and evaluate the effectiveness of using CO/sub 2/ injection to recover high gravity crude oil from shallow watered-out reservoirs. The project eventually developed into two distinct phases: the first being CO/sub 2/ injection into four corner wells in a conventional five-spot, with a central producing well and three interior test/observation wells. The second phase of the project consisted of a mini-flood within the original pattern. A total of 9800 tons of CO/sub 2/ was injected into the five-spot in several stages, alternating with water periodically for mobility control and better sweep efficiency. Injection of the CO/sub 2/ slug was completed on June 16, 1977. Water injection followed the CO/sub 2/ slug until the pattern was effectively watered-out. Oil production from the central producer peaked shortly after cessation of CO/sub 2/ injection and water production increased to about the same as before the project started. Since it was felt that the project lacked confinement as evidenced by extensive CO/sub 2/ migration outside the pattern and the low recoveries, a series of reservoir interference tests were run to help determine the best course of action to follow. The mini-test resulted. Approximately 1600 tons of CO/sub 2/ were injected during this phase. Oil production within the pattern during the first phase amounted to approximately 4000 bbls. while during the mini-flood an additional 1345 bbls. of oil was produced. It has been extremely difficult to evaluate this project due to the extremely complex heterogeneity of the reservoir. The problem has been compounded by the many workovers experienced by the wells over the years, and the resultant damage to the reservoir. 7 references, 12 figures, 13 tables.

• Research Organization: Columbia Gas Transmission Corp., Charleston, WV (USA)
• DOE Contract Number: AC05-76ET12015
• OSTI ID: 5737610
• Report Number(s): DOE/ET/12015-62; ON: DE84002601
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
CARBON DIOXIDE INJECTION
CONTROL
DATA
ENERGY SOURCES
ENHANCED RECOVERY
EXPERIMENTAL DATA
FEDERAL REGION III
FIELD TESTS
FLUID INJECTION
FOSSIL FUELS
FUELS
INFORMATION
MISCIBLE-PHASE DISPLACEMENT
MOBILITY
NORTH AMERICA
NUMERICAL DATA
OIL WELLS
PETROLEUM
PRODUCTION
RECOVERY
RESEARCH PROGRAMS
STIMULATION
SWEEP EFFICIENCY
TESTING
USA
WATERFLOODING
WELL SPACING
WELL STIMULATION
WELLS
WEST VIRGINIA