Computer Analyzed Torque Monitoring (CATM)

Create accountability in the field by ensuring correct make-up and running procedures.

At ProTorque, it is our belief that all casing and tubular products should use CATM. For example, it is vital to be able to recognize that the metal-to-metal or thread seals are made up to manufacturer specifications.

  • Record and report: torque, turns, RPM, and where applicable, shoulder points are on premium connections
  • Request correct alignment during make-up to prevent galling of threads
  • Provide the customer with a detailed report of the make-up of each tubular connection, including rejected connections; this is produced by the computer software in the form of graphical joint reports, statistical reports, summary reports, scatter charts, histograms, and pie charts
  • Intercede when necessary to help save connections from damage due to high RPM, over torque, over rotation, and alignment issues
  • When issues arise relating to connection make up, we ensure that hydraulic power is bypassed to mitigate damages immediately

Torque values are only recommended under ideal conditions for proper make-up and they don’t take into account the damaging factors such as misalignment, debris or contaminants in the threads, poor machining, or collars turning during makeup.

The use of CATM can eliminate these damaging factors, which are not visible to the human eye or a torque gauge. Our technicians will stop the make-up of the connection, and prevent any damage due to poor make-up, if anomalies occur.

Our services can prevent damage to the casing / tubular strings, eliminate leaks during fracs, ensure proper performance and isolation for packer systems, and reduce environmental risks.

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Ambient temperature changes will affect the accuracy of hydraulic load cells. ProTorque utilizes electronic load cells to measure torque and they are systematically calibrated to the highest industry standards.

Our CATM systems supply data to any rig management system (Pason) to provide real time make up data.

An electronic dump valve is used to cut off hydraulic power to the power tongs or top drive once final torque is reached. The operator can also stop the make-up of a connection if characteristics of thread damage are observed via the winCATT, or for any other reasons.

The number of turns in each connection are recorded during make-up to ensure that the correct amount of delta turns is reached: this eliminates excessive rotations that may damage a connection. This is particularly important in the make-up of the 8 Round connection as stated in API Practice 5C1.

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WECATT Wireless Torque Sub

WeCATT™ (Wireless Torque Sub)

Wireless Sensor for Precise Torque, Tension and Turns

The weCATT Wireless Torque Sub monitors makeup from a top drive and records torque turns and hook load. Hook load sampling can be incorporated into Pason or any other rig management system. Our Torque Subs can be used to provide accurate data and drastically improve ROP rates.

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WeCATT™ Specifications

WECATT Computer Analyzed Torque Monitoring (CATM)
Torque Capacity-50,000 to +50,000 ft.lbs. (Based on Thread Type)
Hoist Capacity200,000 lbs. to 1,000,000 lbs. tension with 2.25 safety factor (Based on Thread Type)
Sampling RateDynamic, up to 480 samples/second
Torque/Hook Load Accuracy1% of Full Scale
Turns Resolution0.001 turns
Temperature Range-40°C to 70°C (158°F)
Battery Life30 days of continuous use
Transmission2.4 GHz approved US, Canada and Europe
Transmission Typeline of sight
Enclosure RatingType 4X and IP 66
Hazardous Area ClassificationClass 1, Division 1, Zone 1, Group IIB, T4
Protection Type: EX Flameproof Enclosure (d)
Certification: CSA/UL/ATEX/IECEx
Torque SubDesigned to API 8C Specifications
ThreadsManufactured to API 7 specifications
WeightApproximately 350 lbs.
LengthStandard shoulder to shoulder 21.62”
(18.63” is the minimum shoulder to shoulder length if there is zero recut allowance)

Competitive Advantages:

Longer Battery Life
Higher Dynamic Sampling Rate
Ability to count turns without an external encoder assembly

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WinCatt Computer Torque Monitoring

WinCATT™

Direct Connection for Precise Torque, Tension and Turns

The winCATT torque turn monitoring system easily integrates with a variety of torque delivery systems including top drives and power tongs by recording torque, turns and time. winCATT accurately assembles data from these systems, recording and graphing the data for evaluation and analysis.

WinCATT™ Specifications

Sampling Frequency:1 – 8000 Hz
Recording Frequency:Combined delta torque and delta time
Cal. Management:Mfg. specifications or local calibration. Shunt calibration with automatic “drift” tracking.
Response time:Electronics < .5 ms Hydraulic dump valve - typically 10 – 30 ms.
Final torque:Average = optimum torque + – 1% Standard deviation < 2% under normal operating conditions.
Operating temp:Computer, 5 – 50oC (40 – 122oF) Junction box, minus 30 – 80oC (minus 22 -180oF)
Torque accuracy:Max error (% of full scale) = sqrt [Local force standard error2 + arm length error2 + 0.152] Typically less than 1%.
Turns accuracy:Max error = + – one pulse of turns counter.
Pressure accuracy:Max error (% of F.S.) = sqrt [pressure standard error2 + 0.152] Typically less than 1%.

Competitive Advantages:

Data review monitors time, delta torque, delta turns

Redundant emergency dump controls help protect the integrity of the connection.

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Contact us to see how we can provide the correct casing running solutions for today’s technical programs.

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