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Downhole Electric Cutting Tool (DECT)

Mechanical Interventions

The DECT is a pipe severing tool that meets industry demands for safe, reliable, high precision cutting operations without using dangerous chemicals or explosives.

DescriptionThe DECT cuts oilfield tubulars with precision control leaving a machine shop quality finish. The remaining pipe can easily be fished using industry standard techniques, removing the need for subsequent clean up operations. The depth of penetration can be accurately controlled preventing damage to external casing strings, and enabling Packer retrieval operations to be undertaken.

The DECT can be deployed on mono-conductor wireline. Depth correlation is achieved by means of an analogue CCL, or by incorporating a no-go device into the toolstring.

Tool operation is controlled by a notebook PC and surface control panel. Once the tool is positioned on-depth, anchors are set and the cutting operation is initiated. The rotating cutting head is located at the bottom of the tool. During the operation, cutting speed, cut penetration, and downhole microphone response are monitored in real-time, and provide a clear indication of a successful cut.

Approximate cutting time in 5 inch, 19.5 lb/ft drill pipe is four minutes.

Features• Cuts pipe in both tension or compression

• No requirement for subsequent clean upoperations

• Cuts all grades of low and high alloy steels

• Operates in Gas, Oil, Brine or Drilling Mud

• Multiple cuts possible during single run

• Cuts pipe in all orientations, from vertical tohorizontal sections

• Simple maintenance–can be redressedat wellsite

• Helicopter transportable–(no hazardousmaterials)

• Ideal tool for packer release, where precisecut is required

•

Cutting Head

DeployableAnchors

Options• DECT001 Range 3 to 6 inches

• DECT002 Range 4 1/2 to 7 5/8 inches

• The DECT can be configured for extremeoperations, please contact our team formore details on specialist applications at:[email protected]

Downhole Electric Cutting Tool (DECT)

Mechanical Interventions

Inconel Cut(High Alloy Steel)

L80 13Cr Cut(Low Alloy Steel)

Specifications DECT001 DECT002

Pipe Size (OD)3 1/2” to 6” 4 1/2” to 7 5/8”

3 1/2”-5” 4.0”-6” 4 1/2”-7” 6”- 7 5/8”

Maximum wall thickness 0.75” 1.0” 0.875” 0.875”

Tool OD 2.75” 3.25” 3.625” 4.7”

Cut point (from bottom of the tool) 3”

Temperature rating 300ºF

Pressure rating 15,000 psi 20,000 psi

Toolstring length 16’–25’

Toolstring weight 170–240 lb

Tool power requirements 1000 VDC/2A

Specifications DECT001 DECT002

Pipe Size (OD)89-152 mm 114-194 mm

89–127 mm 101.2–152 mm 114–178 mm 152–194 mm

Maximum wall thickness 19 mm 25.4 mm 22.2 mm 22.2 mm

Tool OD 70 mm 82.6 mm 92.1 mm 119.4 mm

Cut point (from bottom of the tool) 76 mm

Temperature rating 150ºC

Pressure rating 103.4 MPa 137.9 MPa

Toolstring length 4.88–7.62 m

Toolstring weight 77–109 Kg

Tool power requirements 1000 VDC/2A

Example Cuts The tool can be deployed in a selection of pipe in the 3 1/2” to 7 5/8” range

Cut Section of PackerLock Mandrel

Drilling & Production

Free Point Indicator (FPI)

Pipe Recovery

The Free Point tool measures torque and stretch to accurately locatewhere drillpipe, tubing, or casing is stuck or partially stuck.

Description The Free Point Indicator is an electromechanical assembly designed to accurately measure torque or stretch in harsh conditions. The basic Free Point tool assembly consists of bow spring or magnet, upper and lower anchors, and a sensor section to determine stuck point. Additional components that must be run with the Free Point tool assembly are: sinker bars to overcome the holding ability of the anchors, a collar locator (CCL) to determine depth and a slack joint to relieve weight above the tool assembly when at the correct depth for making a measurement.

Features• A wide range of tools are available for operations inside large diameter casings and small

diameter pipe sizes and restrictions• Most Sondex* Free Point tools can be run simultaneously with explosive string shot assemblies• Tool options available to 30,000 psi (206.8 MPa) operations on all types of wireline,

including nickel (sour service) wireline

SpecificationsTemperature rating 500ºF

(260ºC)

Pressure rating 1 5/8 in. HP 30,000 psi(206.8 MPa)

Diameter 11/16 in.(17.5 mm)

1 in. (25.4 mm)

1 3/8 in. (35 mm)

1 5/8 in. (41.3 mm)

Length 118 in. (2,997 mm)

137.5 in. (3,493 mm)

136.75 in. (3,473 mm)

133.5 in. (3,391 mm)

Weight 9 lb (4.1 kg)

20.5 lb (9.3 kg)

38 lb(17.3 kg)

50 lb (27.7 kg)

Minimum pipe diameter 1 in. (25.4 mm)

1 H in. (38.1 mm)

1 I in. (44.5 mm)

1 I in. (44.5 mm)

Maximum pipe diameter 5.625 in.(142.9 mm)

Number of arms 3 4

Distance between clamps 52 in.(1,321 mm)

Portable Logging System (DRS013)

Acquisition Systems and Telem

etry

The DRS013 is a portable system with the all logging capabilities of a full rack mounted MIDAS acquisition unit.

DescriptionThe DRS013 portable system is easily transported to a wellsite without the need to be mounted in the logging truck or offshore unit. It provides all the data acquisition and processing functionality of a MIDAS rack mounted acquisition system for Sondex Ultrawire* tools. The system gives an engineer the ability to acquire and process tool data anywhere that has electrical power and connections to the logging cable. The portable logging system is securely fitted in to a rugged container for transportation. The front panel of the container opens to provide access to the controls (On/Off, Line Voltage, Voltage Polarity, and Line Equalization) and thermal plotter. At the rear are the power (mains in, mains out), line and USB hub for computer connection as well as provision for inputs of line speed, tension, etc.

Features• All features of a full MIDAS

acquisition unit in a portable system• Supplied with Panasonic CF30 Toughbook• Integrated thermal plotter

SpecificationsDimensions 8.27(H) x 20.47(W) x 22.0(D) inches (210(H) x 520(W) x 560(D)mm)

Weight 51.7 lb (23.5 kg)

Main voltage 120 or 240V AC

Ports 1 serial, 1 parallel USB hub

Operating system Windows® XP PRO

Printer 8.25 in. wide B&W thermal plotter

Data files LAS, LIS (NTI, TAP, IMG)

Plot files TIFF, PDF

Tool compatibility Sondex Ultrawire*

MIDAS softwareProduction Logging, Casing Inspection, and Cement Evaluation applications including calibrations,

cross-plots, tools diagrams, headers and footers

Depth interface Pulse encoders

• Telemetry Sync indicator lamps• Tension, analogue, and digital inputs• Depth encoder input


Caged Fullbore Flowmeter (3 arm CFBM)

Production Logging Tools

The Sondex Caged Fullbore Flowmeter is run at the bottom of the Production Logging tool string. A large diameter impeller accurately measures downhole flow rates with coverage over a large cross-section of the casing.

DescriptionThe tool has a three arm, spring-loaded cage that centers the spinner in the middle of the flow and supports tool

weight in deviated wells. The spinner runs on precision bearings, its rotation is sensed by zero drag Hall effect

detectors, allowing the measurement of very low flow rates. Normal output is 10 pulses per revolution with directional

indication. The spinner and cage assembly collapse down to tool diameter when running through tubing restrictions

to prevent damaging the blades.

Features• Injection and production flow profiling• Measurement of low flow rates• Leak detection and cross-flow• Interchangeable mechanical sections to match casing size from 4 1/2 - 9 5/8 in.• Combinable with other Ultrawire* PL Tools• Connects to either a Flowmeter Electronics (CFBE) or a Capacitance/Temperature/Flow Tool (CTF)• Modification kit available for connection to 1 3/8 in. CTF• Lockable spinner for high rate injection wells (standard feature for 9 5/8 in. tools)• Solid impeller shafts for very high rate wells



SpecificationsTemperature rating 350°F (177°C)

Pressure rating 15,000 psi (103.4 MPa)

Tool diameter 1 11/16 in. (43 mm), 1 3/8 in. (35 mm)

Tool length 2.91 ft (0.89 m)

Tool weight (dependant on spinner and cage sizes) 10 lb (4.5 kg) for 1 11/16 in. tool with 7 in. cage

Sensor measure point (from bottom of the tool) 13.5 in. (349 mm)

Output 10 pulses/rev (directional)

Spinner threshold 1.7 ft/min (0.01 m/s) (approx), 100 bpd in 7-in. casing

Max fluid velocity 500 ft/min (2.54 m/s), 28,250 bpd in 7-in. casing

Casing range 4 1/2 in. to 9 5/8 in.

Materials Corrosion resistant throughout




The Caged Fullbore Flowmeter is run at the bottom of a production logging tool string. The spinner blades and cage assembly collapse down to tool diameter, enabling it to pass through tubing restrictions without damage.

DescriptionThe tool has a six arm, spring-loaded cage that centres the spinner in the middle of the flow and supports tool weight in deviated wells. A large diameter impeller measures flow rates with coverage over a large cross-section of the casing. The spinner runs on precision bearings and its rotation is sensed by zero drag Hall-effect detectors, and the signal from the sensors is converted into a flow rate measurement. The low mechanical threshold of the tool enables it to be used in low flow rates; normal output is 10 pulses per revolution with directional indication.

Features• High deviation and horizontal well logging• Injection and production flow profiling• Measurement of low flow rates• Leak and cross-flow detection• Interchangeable mechanical sections to match casing sizes from 4 1/2 to 9 5/8 in.• Combinable with other Ultrawire* PL Tools• Connects to either a Spinner Electronics (CFBE) or a Capacitance/Temperature/Flow Tool (CTF)• Modification kit available for connection to 1 3/8 in. CTF• Lockable spinner for high rate injection wells (standard feature for 9 5/8 in. tools)• Solid impeller shafts for very high rate wells. Baskets for casing sizes 3 in. to 9 5/8 in.

SpecificationsTemperature rating 350ºF (177ºC)


Tool diameter 1 11/16 in. (43 mm)

Tool length 2.91 ft (0.889 m)

Tool weight (dependant onspinner and cage sizes)

10 lbs (4.5 kg)for 1 11/16 in. tool with 7 in. cage

Sensor measure point(from bottom of the tool)

13.5 in. (349 mm)


Spinner threshold 1.7 ft/min (0.01 m/s) (approx), 100 bpd in 7 in. casing

Max fluid velocity 500 ft/min (2.54 m/s), 28,250 bpd in 7 in. casing

Casing range 4 1/2 in. to 9 5/8 in.



Casing Collar Locator (CCL)


The Sondex* Casing Collar Locator (CCL) responds to changes in metal volume, such as pipe collars and perforations.

DescriptionAs the tool passes a collar, or changes in metal volume, lines of magnetic flux between two opposing permanent magnets are disturbed. This causes a low frequency voltage or Electro Magnetic Field (EMF) to be induced in a coil, mounted between the permanent magnets. Finally, the signal is converted by a voltage-controlled oscillator for recording in the Ultrawire* section of the tool.

Features• Combinable with other Ultrawire production logging tools• Depth control in casing or tubing• Location of casing or tubing damage• Confirmation of perforation depths or intervals

SpecificationsTemperature rating 350oF (177oC)


Tool diameter 1 11/16 in. (43 mm)

Tool length 18.5 in. (470 mm)

Tool weight 12.1 lb (5.5k g)

Toolbus Ultrawire*

Current consumption 16 mA

Sensor measure point 6.5 in. (165.1 mm)


Oilfield Technology

Production Gamma Ray (PGR)


The Production Gamma Ray (PGR) tool measures the naturally occurring radiation that is emitted by various formations to determine lithology. Radioactive scale can also be detected.

DescriptionAll PGR tools are compact, rugged and combine excellent sensitivity with high resolution. Gamma rays are detected by a Sodium Iodide scintillation crystal, amplified and counted, then sent to the appropriate telemetry tool. The detector is temperature compensated to minimise drift from the photomultiplier tube.

When calibrated, the difference between background and calibrator levels establish a ratio between raw counts and API units, allowing a calibrated display to be presented on the log in API units.

Features• Combinable with other Ultrawire* production logging tools• Depth correlation• Lithology determination• Identification of radioactive scale• Tracer monitoring• Gravel pack when used in conjunction with a gamma source• Also available in Dualconn version (1 11/16 in. tools only)

Production Gamma Ray (PGR)


SpecificationsModel PGR021 PGR020

Temperature rating 350oF (177oC)


Tool diameter 1 3/8 in. (35 mm) 1 11/16 in. (43 mm)

Tool length 19.7 in. (500 mm) 23.1 (586 mm)

Tool weight 5.1 lb (2.3 kg) 9.4 lb (4.3 kg)

Toolbus Ultrawire*

Current consumption 20 mA

Sensor measure point 4.6 in. (117 mm) 5.3 in. (134 mm)

Sensitivity (nominal) 1 count per API



Continuous Flowmeter Jewelled (CFJM)


The Jewelled Bearing Continuous Flowmeter is designed for logging in high fluid velocity wells, such as gas wells. The tool can also be used in sand producing wells. It controls and monitors the ADR tool.

DescriptionThe Jewelled Bearing Continuous Flowmeter is run at the bottom of the production logging string in combination with a Capacitance/Temperature/Flow tool or CFJ Electronics cartridge. The tool has low friction jewelledbearings to reduce the mechanical threshold of the spinner and improve sensitivity to fluid flow. The spinner is an ideal design for use in high velocity wells. Rotation is sensed by zero drag Hall effect sensors, allowing the measurement of flow rate. Normal output is 10 pulses per revolution with directional indication.

Features• Flow profiling in complex well completions and flow regimes• Optimised for high fluid velocities• Rugged spinner housing protects against debris• Injection monitoring• Available with closed and ported shroud

SpecificationsModel 1 3/8 in. CTF 1 11/16 in. CTF 1 11/16 in. std

Temperature rating 350ºF (177ºC)


Shroud diameter 1 3/8 in. (35 mm) 1 11/16 in. (43 mm)

1 11/16 in. (43 mm) 21/8 in. (54 mm)

2 1/8 in. (54 mm)

Minimum restriction Shroud OD+ 1/8 in. (+3 mm)

Tool length** 9 in. (229 mm)

Tool weight** 2.2 lb (1.0 kg)

Sensor measure point 2 in. (51 mm)


Maximum fluid velocity** >4,000 ft/min (20.3 m/s)


**Depends on CFJM Model.

• Spinner shroud available in a range of sizes 1 3/8 in.,1 11/16 in. and 2 1/8 in. – other sizes available on request

• Surface readout or memory logging• Connects to either a Flowmeter Electronics (CFBE) or a

Capacitance/Temperature/Flow tool (CTF)


Continuous Flowmeter Spinner (CFSM)


SpecificationsModel 1 3/8 in. CTF 1 11/16 in. CTF 1 11/16 in. std

Temperature rating 350ºF (177ºC)


Shroud diameter 1 3/8 in. (35 mm)1 1/2 in. (38 mm)

1 11/16 in. (43 mm)2 1/8 in. (54 mm)

1 11/16 in. (43 mm)2 1/8 in. (54 mm)3 1/8 in. (79 mm)

Tool lengtha 8 in. (203 mm)

Tool weighta 1.7 lb (0.77 kg)

Sensor measure point(from the bottom of the tool)

2.5 in. (64 mm)

Minimum restriction Shroud OD + 1/8 in. (+3 mm)


Spinner threshold 5 ft/min (0.03 m/s)

Max fluid velocitya >2,500 ft/min (12.7 m/s)

Materials Corrosion resistant throughouta) Depends on CFSM Model.

The Continuous Flowmeter Spinner is run at the bottom of a PL tool string to monitor downhole fluid flow rates. Each model should be chosen to optimize the measurement and enable passage through completion restrictions.

DescriptionThe spinner is mounted on precision roller bearings and turns as fluid passes by, this rotation is converted to signal pulses by zero drag Hall effect sensors. The pulses are then used to calculate flow rates and fluid direction (up or down flow); the flowmeter requires very little energy to initiate motion and is ideal for low flow rate surveys. The design and mechanical construction of the spinner assembly have been optimized to cope with very fast flow, sand production, and high viscosity liquids. Each model has a different size housing and impeller, and should be chosen to suit the well completion and flow regime.

Features• Flow profiling in complex well completions and

flow regimes• Rugged spinner housing protects against debris• Injection monitoring• Surface readout or memory logging

• Spinner ported shroud or open cageoptions available

• Connects to either a Flowmeter Electronics (CFBE)or a Capacitance/Temperature/Flow tool (CTF)

downhole electric cutting tool (dect) hole services catalog.pdfdownhole electric cutting tool (dect)...

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