The response of interwell tracer tests in watered-out reservoirs

Conference · Wed Sep 01 04:00:00 EDT 1982 · Soc. Pet. Eng. AIME, Pap.; (United States)

OSTI ID:5453134

Hagourt, J

The response of a tracer pulse test can be obtained from the results of a unit-mobility-ratio and equal-density miscible displacement. The tracer recovery response is identical with the production rate of the displacing phase in the miscible displacement. The tracer production rate follows from differentiation of the production rate of the displacing phase. Longitudinal mixing has a negligible effect on tracer responses of interwell tracer tests. Transversal mixing is important in layered reservoirs if the individual layers are thin (cm-dm scale). The tracer production-rate response of a production well to injection of a tracer pulse into an injector is 'slide-shaped': a sudden rise followed by a fairly extensive fall-off period. The more linear the flow pattern between injector and producer, the shorter is this fall-off period. In stratified reservoirs each layer produces its own 'slide' response. The responses of the less prolific layers, however, may be completely swamped by the responses of the more prolific layers. Single and multi-colour tracer tests can be accurately simulated with a black-oil reservoir simulator, provided a sufficiently fine grid is employed.

• Research Organization: Koninklijke/Shell Exploraite en Produkite Lab.
• OSTI ID: 5453134
• Report Number(s): CONF-820927-
• Conference Information: Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE11131
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
COMPARATIVE EVALUATIONS
ENHANCED RECOVERY
FLUID INJECTION
ISOTOPE APPLICATIONS
MISCIBLE-PHASE DISPLACEMENT
MONITORING
OIL WELLS
PULSE TECHNIQUES
RECOVERY
RESERVOIR ROCK
SIMULATION
STRATIFICATION
TRACER TECHNIQUES
WELLS