SureVIEW fiber-optic well monitoring systems are reliable, accurate, and cost-effective solutions designed to meet your well monitoring needs by providing customized, actionable intelligence in a variety of downhole environments.
These systems are engineered to deliver 24/7 monitoring under the most extreme well conditions. From state-of-the-art manufacturing and splicing techniques to solid-body carriers and thorough pre-deployment testing, we design and install each system to ensure dependable, trouble-free operation over the life of your well.
Case Study
An operator in the North Sea needed to install a complex, fiber-enabled intelligent well completion with the ability to monitor pressure/temperature (P/T) data and view the acid distribution profile for each zone during treatment. Baker Hughes was contacted for the job based on our advanced intelligent well system capabilities and successful track record of performing complex installations.
Before installing the five-zone lateral completion, we performed distributed temperature sensing (DTS) simulations and flow profiling to predict and later assess the effectiveness of a bull-headed, multi-zone acid stimulation. Our analysis software helped solve momentum and energy balance equations to provide a realistic assessment of the predicted acid distributions for several zones in the extended reach horizontal well.
Once the simulations were complete, Baker Hughes proceeded to install the five zone system. To collect P/T and DTS data, we used our SureVIEW fiber optic system which delivers accurate and dependable real-time monitoring under the most extreme well conditions. Fiber optic y-splice assemblies were used to run the SureVIEW P/T gauges and DTS system on the same fiber optic cable and provide continuous measurements from the five zones. Baker Hughes Neo-Pak feed-through packers provided zonal isolation and allowed communication with tools in the production zone, and HCM-Plus hydraulic flow control devices were installed in each zone to selectively control acid treatment from the surface. Baker Hughes managed a total of nine lines in the upper completion, demonstrating our expertise in multi-line spooling.
During the acid stimulation treatment, the SureVIEW fiber optic system gathered point P/T data in each of the five zones and DTS provided a continuous temperature profile over 15,000 ft (4572 m) of production tubing. The SureView DTS data showed excellent agreement with the P/T gauges, validating accurate calibration of the DTS system. The distributed temperature profile gave insight into zonal acid allocation and zonal production contribution, while helping to identify leaks and monitor gas lift.
To simplify access to the data, our SureFIELD DataHub system collected and consolidated the information into a single, integrated data store and then transferred it to Baker Hughes Production Decision Services (PDS) experts for interpretation. PDS includes visualization and analysis software and consultation to support production optimization, reservoir management, and asset integrity programs.
Baker Hughes DTSPro analysis software was used to derive precise acid distributions for each of the stimulated zones. Using the SureVIEW DTS data and proprietary wellbore models, we were able to provide the customer with a report detailing the acid distribution profile for each zone to help ensure and validate effective acid allocation throughout the treatments. The acid stimulation interpretation also guided subsequent selective stimulations which resulted in enhanced production.
SureVIEW P/T Gauges
The Baker Hughes SureVIEW pressure/temperature(P/T) system is a fiber-optic-based monitoring system that provides reliable and accurate well monitoring to help operators enhance production from their wells. The SureVIEW P/T system uses our industry-leading CoreBright optical fiber to ensure the best protection against hydrogen darkening of any downhole single-mode based system on the market, and to provide reliable long-term operation at elevated temperatures.
Each fiber-optic gauge measures both temperature and absolute pressure using established Fabry-Perot technology. With no downhole electronics, gauges can operate reliably at much higher temperatures than traditional electronic gauges, and they are immune to electromagnetic interference.
The surface instrumentation unit (SIU) interrogates the gauges and then converts the raw information into pressure and temperature values. Users can access the data locally on the SIU’s front panel display or remotely via telemetry and SCADA.
Rack-mount, pole-mount, CSA-approved, and hazardous location SIU’s, all with two- and eight-gauge channel options are available. With multi-gauge support, a single SIU can typically support monitoring for multiple wells on a platform.
To complete the installation, a suite of field-proven accessories is available, including splice hardware, solid body carriers, pressure retaining wellhead outlets, and more. All downhole equipment is dual-sealed and leak-testable. Traditional deployment methods are used to install the system, requiring no special tools from the client.
SureVIEW DTS
The Baker Hughes SureVIEW distributed temperature sensing (DTS) system generates accurate, high-resolution spatial and temperature profiles for up to 12 (multimode) or 16 (single-mode, with optional external switch) optical fibers.
The SureVIEW DTS system combines fieldproven surface instrumentation units (SIUs), downhole optical cable and jewelry, and DTS Pro or DTS Live Viewer, two powerful data visualization tools, for a turnkey measurement solution.
SIUs are available in both single-mode and multimode versions. Both use sophisticated Raman optical reflectometry techniques to interrogate the fiber, and process and output temperature data, all without the need for any downhole electronics.
Extensive data logging and highly configurable alarms provide users with superior visibility into well performance and event identification.
The Baker Hughes DTS system offers dependable monitoring and data analysis solutions to a variety of challenges faced in the oil and gas industry.
SureVIEW WIRE
Compaction, heave, and shearing of wellbore casing can lead to downtime, workovers, and intervention, and can shorten the life of your wells. Health, safety, and environmental (HSE) concerns can also stem from these problems if left untreated.
The Baker Hughes SureVIEW well integrity real-time evaluation (WIRE) system helps identify these issues before they turn into significant problems. This interventionless, structural integrity management system enables high-density strain monitoring of the wellbore and surrounding formation to detect, localize, and classify reservoir compaction, shearing, and integrity issues. The sensor array is a specialized strain-locked, fiber-optic cable that is deployed during well completion and supplies real-time measurements from which wellbore structural integrity and near-wellbore geological activity can be accurately inferred.
Identify wellbore integrity issues related to compaction, heave, and shearing with the SureVIEW well integrity real-time evaluation (WIRE) system. This interventionless, structural integrity management system enables high-density strain monitoring of the wellbore and surrounding formation to detect, localize, and classify reservoir compaction, shearing, and integrity issues.
Early detection of these changes enables operators to
- meet regulatory compliance;
- prolong the life of nearby wells;
- relate near-wellbore geological changes to water and steam injection programs;
- fine-tune geomechanical models;
- monitor seismic activity;
- optimize voidage (injection minus production) replacement programs to maximize ultimate recovery;
- take proactive actions to reduce HSE risks and concerns.
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