Autonomous ICD Well Performance Completed With Intelligent Inflow Tracer Technology in the Yuri Korchagin Field in Russia (Russian)

Semikin, Dmitry; Senkov, Alexander; Surmaev, Albert; Prusakov, A. V.; Leung, Edmund

doi:10.2118/176563-ru

Cited by 8 publications

(1 citation statement)

References 1 publication

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“…In addition, the sustained-release tracer is applied to the acid fracturing wells, and the results show that the inflow tracer can be adapted for acidification operations . To improve the accuracy of interpretation results, an inflow profile interpretation model based on the tracer concentration distribution is proposed, and its reliability is verified in the application field . Generally, conventional sustained-release tracers are soluble organic materials, which makes the detection more complicated.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Release Mechanism of Sustained-Release Tracers and its Application in Horizontal Well Inflow Profile Monitoring

Liu

et al. 2021

ACS Omega

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The inflow profile is an important parameter to evaluate horizontal well productivity; however, quantitative interpretation of the inflow profile of the horizontal wells both accurately and cost-effectively is a common challenge faced by horizontal well production technology. The sustained-release chemical tracer is a new low-cost, long-lasting, and simple technique for monitoring the inflow profile in horizontal wells. In this study, a new type of sustained-release tracer is developed using bisphenol A-type epoxy resin as the polymer matrix and 2,6-difluorobenzoic acid, 3,4-difluorobenzoic acid, and 2,3,4,5-tetrafluorobenzoic acid as tracers. Meanwhile, the release mechanism and the influencing factors (chemistry of the tracer, temperature, salinity, and flow rate) of the sustained-release tracer are studied experimentally. The experimental results show that the release mechanism of the sustained-release tracer can be divided into two stages. The first stage involved the erosion process, in which the fluid gradually contacts and wraps the tracer, and the release rate is very fast. The second stage included the diffusion process, which is the diffusion–dissolution process once the fluid is completely wrapped around the tracer, and the release rate of this process is slow. The temperature is directly proportional to the release rate of the tracer, whereas salinity is inversely proportional to the release rate, and the fluid velocity does not affect the release rate. Finally, three kinds of sustained-release tracers are applied in the field, and a method to interpret the inflow profile of the sustained-release tracer is proposed. The result of application indicates that the sustained-release tracer developed in this study can efficiently monitor the inflow profile of the horizontal well.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Release Mechanism of Sustained-Release Tracers and its Application in Horizontal Well Inflow Profile Monitoring

Liu

et al. 2021

ACS Omega

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Ten Years of Reservoir Monitoring with Chemical Inflow Tracers - What Have We Learnt and Applied Over the Past Decade?

Dyrli

Leung

2017

Day 3 Tue, October 17, 2017

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The initial development of inflow tracers was initially designed to provide qualitative information about identifying the location of water breakthrough in production wells. The proof of concept and application for water detection, initiated the development of oil tracers for oil inflow monitoring. Different approaches to install them permanently within a completion component were used, to provide risk free, reliable production monitoring without the need for intervention. Installing unique chemical tracers that are embedded in polymer materials in sand screens or pup joints, along select locations in the lower completion was to correlate where the oil and water is flowing along the production interval and how much. Innovation in the chemistry and materials designed to release to a target fluid (oil or water), enabled non electric wireless monitoring capabilities for many years of longevity in harsh well conditions, such as high temperature and highly acidic stimulation fluids. The evolution of inflow tracer signal interpretation, qualitative and quantitative interpretation workflows using models have also provided valuable insight to inflow characterisation. The latter can provide zonal rate information like wireline conveyed production logging tools, by inducing transients through shut in's or rate changes to create tracer signals that are transported by flow to surface and captured in sample bottles for laboratory analysis. A model based approach to match the measured signals with proprietary models through history matching workflow has also been developed. There are hundreds of well installations utilising inflow tracing monitoring technology today, where the majority have been in open hole completions in both sandstone and naturally fractured carbonate reservoirs on land, offshore environments in both platform and deep water sub-sea environments producing through long tie backs to FPSO's. The monitoring sensors are adaptable to most completion types in conventional and unconventional reservoirs. In most cases, inflow tracers can monitor clean-up efficiency, any subsequent restart and steady state production. Practical case studies will discuss the development of robust and reliable inflow tracer and technology and how operators have applied it over the past decade in a chronological order.

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Permanent Downhole Chemical Tracer System for Wireless Surveillance and Optimizing Well Production

Anopov

Alshuraim

Shammeri

et al. 2018

Day 3 Wed, January 31, 2018

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Intelligent Inflow tracer technology can quantify zonal inflow contribution and identify the location of water breakthrough as its' primary monitoring capabilities. A novel chemical tracer system was permanently installed and successfully field tested in a horizontal oil producer in Saudi Arabia. These intelligent tracer systems allows the monitoring of the entire length of the production section, as early as the clean-up phase. They can also continuous production monitoring for up to ten years without the need for intervention. Some of the lesser known monitoring possibilities include inflow control valve actuation monitoring, packer integrity, multi-lateral and zonal inflow conformance. Understanding fluid influx profiles through permanent interventionless surveillance, has facilitated clean-up operations and improved long-term well performance, as presented in this paper. Unique oil and water soluble tracers are embedded in solid polymeric substrates and mounted on specialized carrier subs in each reservoir compartment separated by packers. When oil or water contacts the polymer substrates, the respective tracer is diffused out gradually with time. Produced fluid samples are collected at surface and analyzed for the presence of unique chemical tracers. The tracers can be measured down to parts per trillion (PPT), using advanced liquid chromatography coupled with a mass spectrometer. The presence and relative contribution of oil and/or water can then be determined for each downhole compartment in the reservoir. This inflow tracer technology was field tested in a 3000ft horizontal well, penetrating a carbonate reservoir. The openhole section was segmented into five compartments using packers which was also equipped with inflow control devices (ICD) integrated with sliding sleeves. Oil and water tracer carrier subs were placed in each of the five compartments. Initial surface sampling of first production showed water tracers from each of the five compartments, as expected with flowback of the completion brine. After clean-up the well produced 100% oil, and surface sampling indicated contribution from only the two heel compartments. The surface choke was opened to very high rate in an effort to clean-up the toe compartments. Subsequent surface sampling confirmed production from additional compartments many months after the cleanup but not from the toe. Periodic surface sampling has continued for nearly two years and will continue for the remaining tracer longevity. The tracers have been instrumental in pinpointing the location of water breakthrough and determining appropriate corrective intervention. In case of high water cut in any compartment, the offending segment(s) can be retarded by the closure of the sliding sleeve ICDs. The application of this wireless surveillance technology is a cost effective means for optimizing horizontal well performance, particularly in mature reservoirs and most appropriate for extended reach wells to overcome the limitations of PLTs and fiber optic monitoring solutions (Semikin et. Al, 2015).

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Autonomous ICD Well Performance Completed With Intelligent Inflow Tracer Technology in the Yuri Korchagin Field in Russia (Russian)

Cited by 8 publications

References 1 publication

Evaluation of the Release Mechanism of Sustained-Release Tracers and its Application in Horizontal Well Inflow Profile Monitoring

Evaluation of the Release Mechanism of Sustained-Release Tracers and its Application in Horizontal Well Inflow Profile Monitoring

Ten Years of Reservoir Monitoring with Chemical Inflow Tracers - What Have We Learnt and Applied Over the Past Decade?

Permanent Downhole Chemical Tracer System for Wireless Surveillance and Optimizing Well Production

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