Scintillation Sensors by GE Provide a Competitive Edge

Gamma detection is one way GE is bringing better data to Exploration and Production (E&P) teams. GE Energy’s robust sensors supply onsite geologists with the precise and timely measurements required for accurate formation location and identification.

GE Energy’s gamma sensors are used in measurement-while-drilling (MWD) and wireline applications. Utilizing its patented suspension and packaging technology, GE Energy’s scintillation detectors are able to achieve sophisticated performance levels, making it one of the most reliable gamma sensors in the industry. Backed by comprehensive vibration and temperature testing, these detectors are virtually immune to harsh environments, operating up to 175°C, with survivability up to 200°C.

Detector durability is further enhanced with GE Energy’s patented Flexible Dynamic Sleeve, which surrounds and protects the scintillation assemblies, absorbing external shock and vibration inherent in BHA operation. The Flexible Dynamic Sleeve also maintains concentricity parameters designed to improve and maintain the accuracy of customers’ drilling systems.

Supported by a renowned team of engineering experts, GE Energy gamma detectors is the technology that can bring new levels of efficiency to any E&P drilling operation.

GE Energy
8499 Darrow Road
Twinsburg, OH 44087
+1 330 425-3755
rsweb@ge.com
gepower.com/oilexploration

MAGRANGE™III, Your Shortcut to Blowout Well Control

What is MAGRANGE™III? MAGRANGE™III (an acronym for MAgnetic Gradient Ranging) is GE Energy’s latest suite of proprietary hardware, software, and interpretive tools that can locate subterranean steel materials within inches, at depths in excess of 15,000 feet.

Utilizing this patented technology in blowout well control, GE Energy is able to accurately drill a relief well to control a blowout, to retrieve or sidetrack around a fish, and in a variety of other situations that require directional drillers to precisely locate a target well or fish.

MAGRANGE III simplifies the relief well process by providing superior data to determine the direction, angle, and distance of the relief well to the target well. Even the best well surveys are only accurate within approximately 50 feet (assuming a .25 (accuracy at 12,000 foot depth), and many older wells have no surveys at all. Put MAGRANGE III to work for you for the help you need in a blowout.

Why should I use MAGRANGE III?
Previous methods of well control required multiple sidetracks to be drilled, increasing the cost and time needed to recover a blowout. MAGRANGE III delivers accurately positioned relief wells, often enabling well control to be regained within an hour. With more than 175 successful projects completed, GE Energy is the company to trust when you need immediate well control.

How does MAGRANGE III hardware work?
The MAGRANGE III sensor array is run into the drill hole on a wireline. Magnetic data is logged either during the insertion or removal of the tool. The typical scenario includes the operator drilling the relief well in the general proximity of the target well (usually within 20-60 feet), running MAGRANGE, and then, based on data collected, adjusting the down hole tool to more accurately reach the target well. Depending on the depth of the hole, measurements can be repeatedly taken to further fine tune the relief well until control is regained.

What service does MAGRANGE III include?
GE Energy is the industry leader in blowout well control. Superior technology, combined with an experienced lead engineer overseeing every project, allows GE Energy to deliver fast and accurate blowout control, when and where you need it. From initial solution engineering, to data measurement and analysis, and to success, GE Energy provides unmatched service at your drill site.

When should I consider MAGRANGE III?
MAGRANGE III has proven successful in a wide range of purposes – below is a summary of possible applications:

• Typical blowout: MAGRANGE III can position the relief well close to the perforations of the target well, permitting kill fluid to be pumped into the relief well and the blowout control to be brought under control. Depending on the formation, the relief well may be effective up to 20 feet away, or in other instances, direct mechanical contact may be required for the relief well perforations to impact the target casing – often in two hours or less.

• Proper well abandonment: If foreign materials or rot prevents a well from being cemented and properly abandoned, MAGRANGE III can facilitate drilling alongside the original hole and “kick over” to make a shallow intercept. The original well can then be cemented and can be abandonment completed.

• Avoid charged formations: In the vicinity of a damaged well, shallow sands can become highly charged with gas, making relief work dangerous. Using MAGRANGE III, GE Energy is able to track the target well at a safe distance before controlling the well.

• Fish location: MAGRANGE III can be used in original wells to strike below the relief well and to pinpoint the location of a fish. Retrieval is particularly challenging in washouts, however, MAGRANGE III can provide essential data to allow the fishing operator to retrieve the fish. In instances when a relief well is drilled and the fish is unable to be retrieved, MAGRANGE III can enable a drill back into the original hole below the fish, converting the relief well into the new well.

• Intermediate kill for all hole depths: Typically, every 3000 feet of additional depth doubles the cost of a relief well. For wells are between 17,000-20,000 feet deep, MAGRANGE III can be used to drill nearly parallel, and into contact, with the target well (at an intermediate depth of approximately 10,000-12,000 feet). A borehole televiewer can then be utilized to locate and radioactively mark the sector of the relief well in which contact is made with the target well. A high-powered perforating gun with a radiation detector can then be lowered into the hole to perforate directly into the target well and regain control of your drilling operation.

Be prepared when a blowout arises
Contact GE Energy today to learn more about the superior technology and service of MAGRANGE III.

Click here for Specialized Drilling Services

GE Energy
Oil & Gas Solutions
8499 Darrow Road
Twinsburg, OH 44087
330.425.3755
gepower.com/oilexploration

*MAGRANGE III is a trademark of the General Electric Company

Centerfire™ – Smart Drilling Solutions for Formation Evaluation

Built for Performance GE Energy offers the latest in propagation resistivity systems. Centerfire™ is built to deliver the unique performance advantages demanded by today’s drilling operators. Leading performance advantages integrated into the system include:

• Retrievable MWD Probe—GE Energy Centerfire uses the field-proven GE Energy MWD probe, which is strategically mounted above the resistivity collar for easy retrieval and reduction of costly rig downtime. The product continues to leverage the universally sized Tensor MWD probe for transmitting data to the surface. The resistivity collar will be offered in three nominal O.D. sizes: 4.75, 6.75 and 8.25 inches.

• Multiple Depths of Investigation—Eight different depths of investigation are possible-with two frequencies, 2 MHz and 400 kHz, and two sets of transmitter spacings-ensuring a more complete formation evaluation. All raw data is saved in the 14 MB downhole system memory in addition to the GE Energy MWD probe’s 8 MB memory. The realtime telemetry is rigsite configurable.

• Performance Reliability and Measurement Quality—Centerfire ensures optimal performance and measurement quality through several distinctive design features:

§         Compensation: The system is designed around a dual receiver/quadruple transmitter array, symmetrically oriented to eliminate downhole temperature and pressure effects. As a reliability enhancement, the array provides measurement redundancy in having two frequencies and two independent sets of transmitter-receiver spacings.

§         Vertical Resolution: The system provides a leading 6-inch thin bed resolution.

§         Measurement Range: Wireline quality measurements are made up to 2000 ohmms in all mud types.

§         Antenna Design: Patented design to optimize measurement quality and performance reliability.

• Higher Operating Temperatures—Mirroring the high-performance GE Energy MWD Probe, the Centerfire Resistivity System can operate at temperatures up to 175°C, adding increased depths of service into your portfolio.

• Complements the GE Gamma Module—The GE Centerfire is complemented by GE’s industry leading probe based Gamma Module, which can be run below the resistivity sub or above it in the MWD tool string, in accordance with operators requirements. This flexibility allows the sensor to be placed closer to the bit or in the MWD string for easy retrieval in problematic hole conditions.

Commitment to Quality

Centerfire’s design process leverages GE Energy’s commitment to quality—a goal of eliminating defects to enhance performance and measurement accuracy. The rigorous design milestones and the extensive field tests this innovation has undergone ensures that we deliver the quality our customers have come to expect from GE.

Independently Manage Your MWD Program

Centerfire is available for direct purchase, allowing customers to optimize their MWD program with resistivity-gamma logging capability.

Performance Benefits

• Greater Operating Flexibility—Add the system to your toolkit to meet specific project requirements.

• Multiple Depths of Investigation—400 kHz and 2 MHz propagating wave technology enables comprehensive formation evaluation for accurate measurements over a broad formations and borehole fluid types.

• Optimal Measurement Quality and Performance Reliability—Designed for Optimal Measurement Quality and Performance Reliability.

• Operates to 175ºC—The system operates at temperatures up to 175°C in water and oil-based drilling fluids, and flow rates up to 1200 gpm.

• Reduction in Costly Rig Downtime—The probe based MWD is seated in a muleshoe above the resistivity sub and is fully retrievable, reducing costly rig time and reducing potential ‘lost in hole’ cost to the operator.

Performance Enhancers

• Tripping Application—The resistivity system can be run independently, under its own battery power to produce recorded measurements from wiper trips or tripping in and out of the hole. Centerfire is deployed with its own 14 MB memory.

 

* The contents of this document are the property of General Electric Company. No part of this work may be reproduced or transmitted in any form or by any means, except as permitted in written license agreement with General Electric Company.

For the current status of this product please visit http://www.gepower.com/prod_serv/products/oc/en/reuter_stokes/oil_expl_sys/centerfire.htm

8499 Darrow Road

Twinsburg, OH 44087

Ph: (330) 425-3755

E-mail: tensor@ps.ge.com

gepower.com/oilexploration

Orientation Modules from GE Energy, Leader in Downhole Drilling Technology

Get the quality and durability you need in directional drilling with GE Energy’s orientation modules. A leader in down hole drilling technology, GE Energy has provided top-quality detectors to the oil exploration industry for more than 30 years.

GE Energy’s portfolio of custom-designed orientation modules provide unsurpassed accuracy, reliability, and configuration flexibility. DuraMag*, GE Energy’s most compact technology for orientation modules, is designed to fit into the smallest of tools by using a compressed electronics package. The DuraMag has undergone extensive cycle testing to ensure that the unit can function reliably through multiple temperature cycles, including up to 175°C, and with increased mean time between calibrations.

Dig further with GE Energy – learn how we can improve the performance of your tools.

Superior Performance in Harsh Environments

GE Energy’s orientation modules are designed for efficient power consumption in a compact, rugged casing. By providing accurate and stable survey measurements, without exceeding the minimal down hole power consumption requirements, the module has aided customers in achieving drilling records for depth, pressure and temperature.

Combining robust packaging with high-temperature electronics, GE Energy’s orientation modules are calibrated to deliver exact data in operating temperatures, ranging from temperatures of -30°C to 175°C, in conditions with vibration measurements up to 20 g RMS, and with shock readings up to 900 G.

Benefits

• Operable in temperature ranges from -32°C to 175°C and survivable in temperature ranges from -55°C to 200°C

• Compact electronics and packaging result in smaller, more powerful orientation modules – such as Duramag*

• Fully customizable orientation modules, including a wide range of sizes, electronics packages, and configurations (accelerometers, magnetometers, and specialized wiring/connectors)

• Rigorous testing and calibration processes ensure orientation modules work the first time, every time

• State-of-art magnetic calibration labs with ongoing calibration services

• Superior product warranty, often exceeding the industry standard

Fully Customizable to Fit Your Tool String

With thousands of configurations-to-date, GE Energy can efficiently customize detectors for specific job needs and tool sizes. Experienced physicists and mechanical and electrical engineers are committed to partnering with your company to design and install unique drilling modules in a wide range of sizes, including magnetometers, accelerometers, and specialized wiring and connectors.

Built for your specific tool, GE Energy’s orientation modules seamlessly integrate into existing tool strings. Directional drilling sensors feature a “plug and play” capability for straightforward installation. And GE stands behind all of its sensors with warranty coverage that can extend to beyond the industry standard. Additionally, troubleshooting expertise is offered to maximize reliability, availability, and sensor accuracy through tool configuration, minimizing the amount of customer involvement required in the design, qualification, testing, and support stages.

Engineered, Calibrated, and Tested for Reliability

GE Energy’s orientation module sensor assemblies provide accurate directional data and information for real-time steering decisions. Each of GE Energy’s orientation modules is rigorously tested and stringently calibrated in the company’s state-of-the-art calibration lab (designed to be 3 nT/ foot), ensuring the assemblies will work the first time, every time.

Using the latest equipment in its development, qualification and testing labs, GE Energy validates its detectors in extreme environments, allowing precise sensor calibration and rigorous temperature, shock, and vibration trials. This broad base of GE design, process, and application knowledge translates into rapid prototyping of sensors tailored to specific customer applications.

The optimized performance of a drilling system depends on the quality, sensitivity, and accuracy of the sensors and modules on which it is built. Join the many GE Energy customers around the globe that have achieved outstanding drilling results.

Specifications

Temperature • 0°C to 175°C continuous within specifications

• -40°C to 200°C survival

Shock • 900 g peak, 0.5ms halfsine (-40°C – 70°C)

• 700 g peak, 0.5ms halfsine (70°C – 185°C)

Vibration • 30 g sine sweep 50 – 2000 Hz (-40 – 185°C)

• 20 g RMS 5 – 1000 Hz, 0.4g2/Hz

Power Requirements • +/- 15vdc nominal @ 70ma max

• +/- (12 – 18 vdc) min/max

Warm-Up Time Operate to specifications within 2 seconds

after power up

Electrical Isolation > 20 megohms

 

GE Energy, Oil & Gas Solutions

8499 Darrow Road, Twinsburg, OH 44087

330-425-3755 gepower.com/oilexploration

* DuraMag is a trademark of the General Electric Company.

GE Reuter Stokes Helium-3 Detector – Thermal Neutron Counting for Formation Evaluation

Oil and Gas Exploration

The GE Energy Reuter-Stokes Helium-3 filled neutron detector is built to operate in extreme environments such as high or low temperatures, high pressures and high shock and vibration. In addition to oil and gas exploration, the sensor is designed for use in mineral exploration and industrial counting applications.

Time Tested Reliability

This detector incorporates over 30 years of experience in developing instruments for rugged and high temperature applications.

Comparative spectra shows that better resolution is achieved by proper choice of the time constants in the pulse amplifier. If the time constants are too short, the neutron pulse may be clipped before the complete charge appears on the anode. Alternately, if the time constants are too long, the contribution from unwanted noise increases. Both situations result in poorer resolution and may introduce undesirable spectra features.

In addition, the counting rate capability is reduced with a longer time constant, while higher counting rate is obtained with shorter time constants. Hence, resolution and counting rate are a compromise.

Spectral resolution is an important parameter, and poorer resolution tends to scatter the pulses over a wider portion of the spectrum. This results in a narrower valley in which to set the discriminator. If the discriminator is set in a wide valley, there is margin for other sources of instability without shifting the counting rate.

Counters filled with higher gas pressure or counters of larger diameter require a longer time constant than lower pressure, smaller diameter counters.

Precision Performance

Patented Helium-3 purification techniques and manufacturing process controls were developed to ensure precise matching of operating characteristics among large batches of detectors. This permits parallel operation of large numbers of detectors without need for separate power supplies or gain matching.

Custom Design

This detector is a sample of one of over 10,000 neutron counter designs we have manufactured. Please contact us if your application requires modification of the specifications given below.

Typical Benefits

Plateau slope <2% per 100 volts over a minimum of 200 volts range.

At least 100 volts common plateau between room temperature and +175°C with <2% count rate shift.

Specifications

Maximum Ratings

Voltage 2500 V

Temperature 200°C

Vibration (Typical)

20G Sine, 10-1000Hz counts per

second not to exceed background

count rate

Other customer specified vibrational requirements can be accommodated.

Shock (Typical)

250 G – 2msec duration

Other customer specified shock requirements can be accommodated.

Contact

8499 Darrow Road

Twinsburg, OH 44087

Ph: (330) 425-3755

1840 Royston Lane

Round Rock, TX 78664

Ph: (512) 251-4131

E-mail: tensor@ps.ge.com

gepower.com/tensor

Smart Drilling Solutions for Directional Drilling – MWD System for Short-radius Drilling

Since 1971, GE Energy has been providing high quality, reliable down hole systems for directional surveying and navigation. These precision directional drilling equipment are specifically made for the oil and gas and river-crossing industries. Features and Benefits Efficient: The Measure While Drilling system (MWD system) is designed for easy and efficient transportation to the jobsite.

The system’s modular design provides MWD services in a single, flexible system with a variety of collar diameters, from 3.5” to 9.5”, and in flow ranges from 75 to 1200 gpm. Additionally, GE Energy’s MWD solution is fully retrievable and reinsertable, minimizing rig downtime and financial risk.

Economical: The rugged retrievable and reinsertable design reduces financial risk associated with “lost in hole” conditions. GE Energy’s training and customer support programs get your experienced personnel up to speed quickly with customized training and maintenance courses.

Retrievable and Reinsertable: GE Energy’s MWD probe can be retrieved and reinserted, maximizing down hole time effectiveness and enabling efficient probe upgrades and replacements. In the event that the pipe gets stuck in the hole, this feature minimizes the rig time lost for probe retrieval. Two people can ransport the probe to the rig floor, eliminating the need for overhead cranes.

Modular Design: GE’s modular MWD System is easily transported and assembled in the field, enabling easy addition of formation evaluation systems such as GE Energy’s gamma ray and Centerfire resistivity solutions. The component structure of the system enables flexible sensor position and placement close to the drill head, optimizing sensor performance. Replacement of individual sensors in the field is another added benefit, eliminating the need to replace the entire MWD system.

Short Radius Applications: The unique design of the MWD systems results in significant system flexibility, allowing the down hole probe to operate in short-radius drilling operations. The system has been utilized in radii as short as 80 degrees per 100 feet.

Positive Pulse: Through positive pulses, down hole life and servicing is simplified through the production of and minimal moving parts. Maintenance is also streamlined – the tool can receive routine service by an experienced technician in less than one day.

Safe Area System: The color graphics LCD screen of the newly updated Rig Floor Display is easily viewed in normal rig operating conditions. Depth tracking options are available, in addition to several screens for numeric and graphic analysis. Intended for use in hazardous areas, communications between rig mounted transducers, safe area laptop computers and the display is distributed through a Safe Area Interface. The interface, located in a non-hazardous area, contains the necessary barriers and protection circuitry to safely operate the system.

Software Supported by Windows: Based Operating System GE Energy’s MWD system runs userfriendly software on the Microsoft® Windows® 2000 operating system. Field engineers also have the options to configure the screen to deliver a variety of operating functions and data.

Value-Added Options Available: The system includes options to allow for the easy addition of GE Energy’s Centerfire resistivity and gamma ray system, down hole memory and hardcopy logs.

Surface Equipment
• Rig Floor Display
• Safe Area Interface
• Standpipe Pressure Transducerl
• Depth Tracking System (optional)
• Connection cables

Down Hole Assembly
• Wireline retrievable and reinsertable
• Operational at downhole temperatures to +150°C and +175°C

MWD Probe
• Directional Sensors/Electronics
• Battery Pack
• Pulser/Driver
• Optional Gamma Detector
• Bowspring or Finned Centralizers
• Diameter
- 1.88 in
• Length
- 25 ft. standard directional only
- 32 ft. with gamma or second battery pack
- 39 ft. with gamma and second battery pack

Operating Specifications

Flow Ranges	75-165 gpm, 3.5 in. O.D. collar100-300 gpm, 4.75 in. O.D. collar150-600 gpm, 6.5 in. O.D. collar400-1200 gpm, 8.25 in. O.D. collar
Pressure Drop	100 psi @ 400 gpm
Data Transmission	Positive-pulse
Electrical Power/Operating Time	Time Lithium battery operates to +150˚C or +175˚C. Will operate for 175 to 200 hours per battery pack
Operational Modes	Operator-selectable sequences and downlinking options. Highly flexible operating software. Selectable resolution – all parameters
Maximum Lateral Displacement Error	2.6 ft./1000 ft. or a conical uncertainty of±0.15˚ maximum
Inclination Accuracy	±0.1˚
Toolface Accuracy	±0.5˚
Dip Angle Accuracy	±0.1˚
Maximum Lost-circulation Material	40-50 ppb concentration, any size, pre-mixed