WellWatcher permanent monitoring systems integrate the most advanced permanent downhole measurement technology with surface acquisition and data communication systems to allow remote monitoring of wells and reservoirs in real time.
Pressure, temperature, density, and flow rate data are transmitted to surface and can also be transmitted to remote locations via satellite, the Internet, or cable.
All components of the WellWatcher system are rigorously tested and qualified to meet the highest standards for reliability.
Permanent downhole gauges
Permanent downhole electrical gauges and associated systems obtain highly accurate, stable, and reliable point measurements of pressure, temperature, flow rate, and fluid density.
WellWatcher permanent monitoring systems include a wide range of downhole electrical gauges and associated systems for real-time point measurements of pressure, temperature, fluid density, and flow rate. The data provide long-term reservoir and production monitoring without the cost of well interventions, helping you optimize well productivity and hydrocarbon recovery by identifying trends throughout the producing life of your well or field.
The gauges incorporate the most recent innovations in pressure transducers, fully welded assemblies, corrosion-resistant alloys, and robust electronic components. Advanced cable head connector technology enhances reliability at the system level.
WellWatcher Remote battery-powered PT monitoring system
·Rated to 68,947 kPa [10,000 psi] and 110 deg C [230 degF]
·Maximum 16 gauges per cable
WellWatcher Sapphire PT gauge
·Rated to 68,947 kPa [10,000 psi] and 110 degC [230 degF]
·Maximum 6 gauges per cable
WellWatcher Sapphire PT計
WellWatcher Quartz LT high-resolution PT gauge
·Rated to 68,947 kPa [10,000 psi] and 130 degC [266 degF]
·Maximum 8 gauges per cable
WellWatcher Quartz premium high-temperature, high-resolution PT gauge
·Rated to 172,368 kPa [25,000 psi] and 176 degC [350 degF]
·Maximum 8 gauges per cable
WellWatcher Extend high-resolution dual-sensor PT gauge
·High pressure and temperature
·Rated to 110,316 kPa [16,000 psi] and 150 degC [302 degF]
·Maximum 10 dual gauges per cable
FloWatcher flow rate, fluid density, and PT monitoring system
·Pressure, temperature, flow rate, and fluid density
·Rated to 172,368 kPa [25,000 psi] and 175 degC [347 degF]
Hydraulic Dry Mate Connector
APPLICATIONS
·Bypass fitting on hydraulic control linear permanent downhole cable
·Tubing hanger terminations
BENEFITS
·Enables sealing directly into a tubing hanger
·Facilitates a smaller female profile due to a compact design, which minimizes footprint and reduces cost
·Enables sealing around a feed through on a packer or tubing hanger
·Enhances performance with robust microscratch resistance sealing capabilities
·Ensures reliable sealing performance across the operating envelope by qualifying the seal with each control line
FEATURES
·High reliability of hydraulic connections, even in demanding environments
·Pressure testable either by a port in the completion accessory or via the fitting directly
·Compliance with NACE MR0175standard materials
Modular Cable Protector
APPLICATIONS
·gauges
·surface-controlled subsurface safety valves
·control lines
·fiber-optic cable
·electric cables
BENEFITS
·Supports control line and cable instead of physically gripping them
·Eliminates loose parts with preinstalled changeable inserts
·Prevents both axial and lateral movement
·Uninstalls easily and allows reinstallation
·Reduces risk of hang-up during completion installation with generous leading chamfer
FEATURES
·Optimized cable protector length between shoulders, cable slot, and changeable inserts for shortened delivery lead time
·Reusable
·One-piece design with preattached fastener and preinstalled inserts
·Standard base part enables shortened lead time
·Support for up to 100 ft [30.48 m] (or 30lbm [13.6 kg]) of control line and cable weight
·Compatibility with all coupling, line, and cable sizes and orientations due to optimized body length and changeable inserts
Lasalle cable protectors have been proven in numerous oil- and gas-producing regions around the world.
The modular cable protectors are designed to perform as well as standard cross-coupling cable protectors and ensure that all control lines and cables are protected for the full length of the production string in these completions. Quick and easy installation is also ensured by the hinged design with preattached fastener and preinstalled changeable inserts.
The modular cable protector is supplied in all-cast design and is available for 3.5-in [88.9-mm], 4.5-in [114.3-mm], and 5.5-in [139.7-mm] tubing sizes.
Case Studies
Remote site and icy conditions present monitoring challenges
A well in a remote, environmentally sensitive area of Alaska required real-time downhole monitoring. The site was cold, difficult to reach, and had no permanent power source. The monitoring system has to be installed in the 4 months before the roads made of ice began to melt. Also in these 4 months, a road and well pad had to be constructed, the rig moved onsite, and the well drilled and completed.
Compact, lithium battery–powered monitoring system streamlines installation
The WellWatcher Remote battery-powered PT monitoring system was selected. Its small replaceable lithium battery eliminated the need for a permanent electric power supply or solar panels, which are frequently stolen but were not an option because of the short daylight time in Alaskan winters. Its miniaturized remote acquisition unit was easy to transport. The long-life lithium battery met the high reliability standards needed in the remote location. After well abandonment, the equipment could be easily and inexpensively moved to another site.
Use of monitoring system saves 4 days and USD 0.5?million
The WellWatcher Remote system operated as planned and was left in place for several months to monitor downhole pressure and temperature and ensure well integrity until the well was permanently abandoned. By eliminating the construction and other time-consuming requirements of traditional power sources, the operator saved an estimated 4 days and USD 0.5?million.
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