Using Tracers to Characterize Petroleum Reservoirs: Application to Carmopolis Field, Brazil

Abstract

TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractA specific area under water injection in the Carmópolis field, Brazil, is been considered a candidate area for a polymer pilot project for mobility control. A reservoir characterization and an evaluation of the polymer performance in this high heterogeneous reservoir were required. For this purpose, radioactive, fluorescent and chemical tracers were applied associated with polymer in a reduced area. The tracer technology has an enormous potential use in Petrobras scenario and this Carmópolis field application was an opportunity to obtain know-how. This paper describes the basic steps from the laboratory tests to the final application including design and programming of field operation. The interpretation of the results using a new approach is also addressed.

Magnetic SERS Composite Nanoparticles for Microfluidic Oil Reservoir Tracer Detection and Nanoprobe Applications

“…Figure shows the results of these measurements, indicating that the SERS signal is detectable at low concentrations for these two analytes. These low levels of detection are especially important since fluorescence dyes have been used as a nontoxic and nonradioactive oil field tracer materials for many years, and other molecular tracers are of significant importance for understanding well connectivity. , Figures a,b show Raman spectra of mSERS-s nanoparticles during flow of analyte molecules at varying concentration. By monitoring the characteristic peaks of analyte molecules (Figure S3) at the same quantity of aggregated nanoparticles, we measured the limits of detection (LODs) as 10 nM for FITC and 1 nM for fluorescein.…”

Easy and Rapid Synthesis of Carbon Quantum Dots from Mortiño (Vaccinium Meridionale Swartz) Extract for Use as Green Tracers in the Oil and Gas Industry: Lab-to-Field Trial Development in Colombia

“…In particular, the oil and gas industry reported the use of tracers in the 1950s for tracking the flow of fluids in water-flooded reservoirs. Tracers were added to the injected fluids to determine where the fluids were going . Because of the heterogeneity of the reservoirs, fluid movement is challenging to predict, especially in fields that contain multiple injectors and producers .…”

Flow injection analysis with amperometric detection for iodide determination as a tracer in seawater reservoirs

“…Petroleum reservoir tracers, for example, are substances added to the injection fluid (usually water) and collected via sampling at production wells [2]. Tracers are increasingly being used in many scientific fields, including medicine, biology, physiology, nutrition, toxicology, biotechnology, chemistry, agriculture, geosciences and engineering.…”

“…However, tracers are predominantly used for the characterisation of petroleum reservoirs [3]. In this case, they are used to monitor fluid distribution and trajectory, two parameters that are crucial for reservoir management and evaluation of the economic and environmental impact of petroleum production [2].…”

“…Moreover, a tracer should be soluble in the aqueous phase, environmentally safe, easy to manipulate and inexpensive [2]. Iodide is an example of chemical tracer.…”