Reservoir Characterization Over 25 years of experience.

Tracerco Reservoir CharacteriZation

Tracerco A world leading technology company, Tracerco has used its scientific expertise for over 25 years

Why Tracerco?

in support of the oil and gas industry, providing

:: Over 25 years of expertise

unique and specialized detection, diagnostic and

:: Operational capabilities globally

measurement solutions.

:: Significant investment in Research and Development

With facilities, knowledge and expertise located around the world, Tracerco provides its international customers with a first class service expected from an industry leader. Tracerco offers a portfolio of reservoir characterization services based on advanced tracer technologies and sophisticated analytical techniques. Using our extensive multi-disciplined Research and Development team, that forms an integral part of the Tracerco business, and Tracerco’s expertise in field deployment an extensive range of chemical tracing methods for reservoir and near well-bore flow characterization is available.

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Tracerco Reservoir CharacteriZation

Tracerco Reservoir Technologies Knowledge of what’s at the bottom keeps you on top. As the demand for hydrocarbons continues to grow,

More information means maximum efficiency

oilfield professionals are continuously faced with the

to meet the needs of our customers, Tracerco has

challenge of discovering, developing and maximizing

developed a range of specialist tracer technologies

hydrocarbon reserves from more inhospitable locations

that can be applied to enhance information on oil,

and complex geological structures.

water and gas flows in reservoirs. The techniques are

Knowledge of subsurface fluid flow provides valuable information to a reservoir field development team during hydrocarbon recovery. This information can be used to ensure effective reservoir displacement to maximize hydrocarbon extraction efficiency.

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applied in many development stages from drilling wells, field development and in late field life to monitor the effectiveness of tertiary recovery operations.

Tracerco Reservoir CharacteriZation

Tracerco™ Smartsleeve Technology

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Tracerco Reservoir CharacteriZation

Gain better insight into original fluid saturations.

Near Well Bore Tracerco Near Well Bore tracer techniques provide our customers with a reliable method of monitoring the progress and effectiveness during a range of down-hole operations including:

:: Coring-Fluid Invasion Measurement :: Hydraulic Fracture and Acid Stimulation In-flow Assessment :: Perforation Positional Flow Measurement

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Concentration

Tracerco Reservoir CharacteriZation

Concentration

Time

Core Invasion Measurement Time

For Core Invasion Measurement, as drilling progresses,

“Use Tracerco to more accurately measure in-situ fluid saturation, formation brine salinity and original

a series of mud samples are taken at specific drilling

water saturation”

depths. Interpretation of the mud sample and core fluid tracer concentration analysis provides:

that reservoir fluid properties are accurately measured. Any

Mud concentration

% Invasion

wells it is critical

Concentration

When drilling

% Sample contamination

Core Depth

interference due to invasion of oil or water based drilling fluids during drilling activities must be discounted during formation fluid analysis. The Tracerco Core Invasion Measurement technique is used to determine the level of drilling fluid invasion into formation samples. Prior to the start of

:: A tracer/drilling mud concentration ratio at vertical depths :: Extracted core tracer/drilling mud concentration at specific vertical depths :: Percentage of drilling mud core invasion, calculated from ratio analysis

In addition, contamination of bottom hole samples can be measured using the same technique.

drilling operations through a zone of interest, a specialist oil or water compatible chemical tracer is added to the mud system providing a constant concentration of tracer throughout the drilling mud system.

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Tracerco Reservoir CharacteriZation

A more cost effective and accurate technique for verification of fluid inflow.

Hydraulic Frac and Acid Stimulation In-Flow Assessment “Gain information on overall production contribution from each stage of a stimulation program using Frac and Acid Stimulation tracers.” Working with its customers Tracerco has developed

Following multi stage hydraulic fracturing or acid

a technology to provide fluid inflow information after

stimulation of a well, it is valuable to gain a better

stimulation that has proven to be very beneficial,

understanding of the overall production contribution

especially in extended reach horizontal wells that are

from each treatment stage. Historically, there has not

challenging for conventional well logging.

been any technology to verify positional fluid inflow other

Interpretation of the data in conjunction with overall well production information enables: :: A comparison to be made of relative hydrocarbon flow from each stage :: Highlight areas of high, low and zero flow (somewhat similar to a production log) :: Confirm flow through downhole tools such as bridge plugs

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than the use of intrusive production logging tools. In many extended reach wells, the use of a production logging technique has been relatively inaccurate and can be expensive.

Tracerco Reservoir CharacteriZation

Tracerco applies oil or gas compatible tracers at the leading edge of each stage.

Tracers are displaced deep into the formation.

Presence of tracers confirms production from each stage.

Samples analyzed to determine tracer presence and quantity.

Tracers contact reservoir oil and gas and partition into the hydrocarbon.

Samples are taken at the surface during well clean up and first production.

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Tracerco Reservoir CharacteriZation

Perforating Tracers “Tracerco’s Perforating Tracer technology provides a

This allows confirmation that each zone is contributing

proven technology to assess perforated zone backflow

to overall production from the well. Information can be

confirmation for cemented liner completions.”

used to enhance the data set of the production well test. Benefits of the perforation tracers: :: No additional rig time/rig space :: Low cost :: Chemical tracer materials used :: None intrusive confirmation of zonal flow

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Tracerco Reservoir CharacteriZation

Specialist chemical tracers are secured to a number of scallops of the perforating guns before they are run-in-hole.

Unique tracers are located at specific perforation locations in the well bore.

During the detonation process, tracer material is forced into the formation where it bonds to the perforation tunnel walls.

Sampling production fluids during back flow of the well during clean up and first oil allows a flow profile of each tracer to be established and verifies flow from specific zones.

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Tracerco Reservoir CharacteriZation

Reduce routine well intervention activities and associated costs.

Flow Profiling Water/Oil Inflow Measurement

Tracerco Flow Profiling technologies provide a reliable and cost effective method that can be applied with:

“Determine the location of water and oil inflow with zero well intervention using low cost, zero risk Tracerco technology as part of long term reservoir monitoring.”

:: No additional rig time :: No changes to well completion design :: No changes to well stimulation operations :: Zero safety risk The measurement of produced water and oil fluid inflow characteristics in extended reach or multi-lateral wells during clean up and long-term production is essential. It allows a better understanding of reservoir sweep and assists in diagnosing well inflow performance problems prior to well remediation operations. The ability to collect inflow profile data at first oil as well as mid-field life without the need for well intervention enables our customers to significantly reduce routine well intervention activities and associated costs especially when using subsea wells during a field development.

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Tracerco Reservoir CharacteriZation

Customer cost efficiency is maximized by: :: Tracer material optimization :: Extremely low limits of detection (ppb and ppt) :: Tracer design and application Prior to running a completion string, a number of unique chemical tracer materials are incorporated as part of the

Sampling is carried out during well clean up and first production if using a relatively short release tracer design or routinely alongside other sampling activities if extended release tracers have been applied. The presence of a specific tracer and its concentration in production fluids allows a fluid inflow profile to be generated at a given point in time.

completion design. Tracers selected are designed to be oil or water soluble. Their chemical and physical design is customized for a specific project allowing them to be released quickly providing an indication of oil or water inflow contribution during first clean-up of a well, or very slowly allowing water or oil fluid inflow to be determined over a significant period of time. A number of unique tracers can be added not only to an individual well bore but can be spread across a number of wells or multilateral well bores. This is particularly important in the identification of the source of oil and water production from individual well bore positions.

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Tracerco Reservoir CharacteriZation

Optimize ongoing field design and maximize hydrocarbon recovery.

Interwell “Enhance your understanding of reservoir connectivity by adding a Tracerco Interwell Tracer Study to your reservoir surveillance tool kit.” Tracerco has developed a range of specialist tracer

or steam flow from each injector to production wells allowing the determination of:

technologies that allow measurement of interwell

:: First injection water or gas breakthrough

flow of injected water, gas and enhanced oil

:: Reservoir interlayer connectivity

recovery chemicals. The technology is commonly

:: Detection of fault block communication

applied in new field developments that use

:: The presence of high flow permeable channels

waterflooding or gas injection as part of their initial

:: Measurement of flood wide reservoir preferential

recovery mechanism, as well as more mature reservoirs where enhanced recovery programs are used to extract incremental oil remaining within the field. A Tracerco Interwell Tracer Study is typically used alongside other reservoir surveillance tools to refine or validate computer flow simulators to optimize ongoing field design and ultimately maximize hydrocarbon recovery.

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Our technology provides measurement of water, gas

flow trends

Tracerco Reservoir CharacteriZation

Accurate measurement of SOR within a mature reservoir using Tracerco chemical tracer technology.

Alongside dynamic flow information, the use of

For mature reservoirs, tracers can be used to

specialist tracers allows additional information to be

benchmark residual oil saturation levels prior to a

gained concerning the effectiveness of enhanced oil

tertiary recovery treatment. Subsequent measurement

recovery applications such as:

of changes to residual oil within the formation allows the effectiveness of a treatment to be determined.

:: High permeable channel blocking :: R  elease of immobile residual oil in flow paths between wells For cases of channel blocking, tracer can be used to determine sweep extent and timing prior to the blocking chemical addition and then repeated afterwards. Data generated alongside the measurement of incremental oil production can be used to validate its effectiveness.

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Tracerco Reservoir CharacteriZation

On-site or off-site, specialist tracer laboratories.

Reservoir tracer analytical support “Specialist tracer analysis provided through local service provision.”

Our global team of experienced production chemists allows us to offer both on-site and off-site monitoring. If using one of our fully equipped mobile laboratories we are able to offer immediate results at the well site. We also have a number of fixed laboratories containing more sophisticated analytical equipment that can be used if enhanced analytical sensitivity is required or sample logistics is not an issue. Tracerco laboratories are strategically located around the world backed by a dedicated multi-discipline team at our headquarters. This enables us to offer a full range of standard and customized analytical and diagnostic techniques to meet your specific requirements.

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Tracerco Reservoir CharacteriZation

Through extensive training of specialist staff around the world, we offer local project design, tracer material handling, in-country support, regional analytical capability and tracer data interpretation. Our global experience in reservoir tracing projects,

Concentration Concentration

Tracerco laboratories provide you with a full range of analytical and diagnostic services.

Time

combined with cutting edge chemical tracer technology and modern facilities, place Tracerco at the forefront of reservoir tracer application.

Concentration Concentration

Time

Time

Mud concentration

Invasion

ncentration

Time

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Tracerco Tracerco offer a range of other award winning products and services to the oil and gas industry: :: Analytical Services, offering a full range of standard and custom analytical and diagnostic technologies to meet all reservoir requirements :: Process Diagnostics :: Radiation monitors/detectors :: Subsea services :: Instrumentation :: Product Assurance :: Radiation Protection Advice

Benefit from over 25 years of global experience. www.tracerco.com/reservoir-characterisation

Tracerco Limited is a subsidiary of Johnson Matthey Public Limited Company, 5th Floor, 25 Farringdon Street, London EC4A 4AB. Registered in England No. 4496566. Tracerco is a trading name of Tracerco Limited. Tracerco is a trademark of the Johnson Matthey group of companies.

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