... presents data acquisition techniques that aid in well interference identification and quantification. Integrated analysis of data from a well pad in the Vaca Muerta formation, including microseismic, chemical tracers, geochemical fingerprinting, and pressure measurement, indicates both pressure...

... the feasibility of field-scale application of polymer flooding across the Rayoso formation. A multidisciplinary integrated surveillance plan has been implemented to prevent the pilot from failing due to avoidable causes. Data on polymer quality monitoring, tracer surveys, interwell tracers, fall-off tests...

... Field, taking into account the presence of a strong, active, bottom-water drive. Both interwell tracer studies were useful in evaluating reservoir heterogeneity, identifying interwell communication between disposal and production wells, reservoir layering, flow barriers, and determining the injected...

... was developed where a reservoir chemical tracer was injected into a heavy oil high permeability infinite acting aquifer reservoir in order to provide experimental information about the connectivity of the interwell zone. The tracer injection design, execution, sampling, sampling analysis, sampling results...

... cost and risks of acquiring surveillance information using conventional technology, such as production logging tools, is forcing operators to forgo acquisition of fluid inflow distribution information and manage these fields with a blurred understanding of the reservoir. Intelligent chemical tracers...

... pilot test tracer reservoir oil production evaluation communication viscosity chemical flooding methods producer well backflow test assessment upstream oil & gas injection rate polymer injection enhanced recovery information staatsolie degradation criteria spe 138728...

... Abstract Tracers are chemical compounds or radioactive isotopes used to label injection water and gas in petroleum reservoirs. In inter-well tracer tests (IWTTs), well connections and fluid patterns can be established when the tracer appears in production wells. Tracer simulation...

... Abstract A gas interwell tracer program was designed and implemented to characterize the flow stream within the current injection/production pattern of the central part of the Mesozoic Chiapas-Tabasco Basin.The field includes one injector and four producers.Due to production, the average...

... the experience of Petrobras in implementing and managing those polymer flood pilot projects. The laboratory tests, the designing and programming of the field operation, as well as the analysis and interpretation of the results, were all carried out by Petrobras personnel and are covered in this paper. The tracer...

... chemistry baso 4 adjustment production chemistry displacement tracer spe 81127 oilfield scaling modelling Introduction The formation damage in scaled-up production wells caused by incompatibility of injected and formation waters have long been known. Precipitation of salts results...

...Interwell Tracing Interwell tracer testing consists of injecting either a radioactive or chemical tracer(s) into an injection well(s) during a gas or waterflood job and the subsequent sampling of production well(s) for a prescribed period of time. Samples are analyzed for tracer content, which...

...). In both solutions the polymer used is scleroglucane. 2) A flow of a saline solution into a polymer solution (scleroglucane), which initially saturates the porous media of double porosity (conductivity measurement). At the same time, a flow of a polymer solution marked with a radioactive tracer (gamma...

... Nowadays, the radioactive tracers are the most frequently used 1 , 2 . They have an extremely low detection level in the order of ppt (parts per trillion) and, as a consequence, require a tiny injection volume (usually a blister). This is crucial for offshore applications where available space...

... 1986. In order to keep pressure, a water injection program by the flanks of the reservoir was started in 1992. In 1995 four different radioactive tracers were injected through 14 wells, aiming at getting a correlation between producing well and injectors. In this paper the result of the water tracer...

... by a polymeric dispersion (xanthan) was studied. In this case there is no hydrodynamic instability in the fluid flow. The originality of the measurement consists in the fact that the polymer molecule was tagged with a γ tracer. The technique used allows us to obtain concentration values of polymeric dispersion...

... in the field as a color change caused by lower oil saturation. Tracers confirm that when coring rate exceeds 80 ft/hr (24.4 m/hr), approximately 80% of the samples taken from the core center have no mud filtrate invasion for permeabilities greater than 50 md. Connate water saturation measured in offsetting...

... 2 as a tracer for monitoring the flow path of injected LNG. The CO 2 content in the Tiehchenshan gas and Indonesia LNG is around 2 mole % and 0 mole %, respectively. The simulation results indicated that monitoring the CO 2 concentration change at the producing wells would help understand...

... the behavior of a water salinity tracer by use of an analytical solution for the Dispersion-Convection Equation. The second section of this work extends the analytical results in Berea sand cores. Finally, the last section covers the field simulation, thus the objective is to study the tracer evolution...