The design and implementation of multiple tracer program for multifluid, multiwell injection projects

Conference · Tue Jan 01 04:00:00 EST 1974 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:6812752

Wagner, O R; Baker, L E; Scott, G R

A tracer program utilizing both radioactive and chemical tracers was designed to trace the interwell movement of injected hydrocarbon solvent and water in the S. Swan Hills Unit, Alberta, Canada. Fourteen solvent injection wells and 14 water injection wells were involved. An analytical solution to the diffusivity equation was developed to predict the tracer performance.Calculations were made using this analytical solution to determine the quantity of tracer to inject to produce a safe, detectable concentration, to predict the peak tracer concentrations in the produced stream over a broad range of breakthrough times, and to determine the required range of analytical sensitivity for monitoring samples of the produced stream. Other calculations made indicate that it makes little difference, in the peak tracer concentration produced, whether a given amount of tracer is injected as a spike or is spread out over several days injection. Critical factors tending to dilute the gas tracers were found to be diffusion, well pattern effects, dilution of gas tracers by solution gas in the separators, and the reduction in specific radioactivity due to expansion of the gas.

• Research Organization: Amoco Production Co.
• OSTI ID: 6812752
• Report Number(s): CONF-7410175-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-5125
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030300 -- Natural Gas-- Drilling
Production
& Processing
DIFFUSION
FLUID INJECTION
INJECTION WELLS
ISOTOPE APPLICATIONS
NATURAL GAS WELLS
OIL WELLS
PERFORMANCE TESTING
RADIOACTIVITY LOGGING
TESTING
TRACER TECHNIQUES
WELL LOGGING
WELLS