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Motorized Unitary Logging Equipment-tractor (MULE)
The Motorized Unitary Logging Equipment-tractor (MULE) is a field-proven downhole tractor, designed to deployed tools and equipment along horizontal and highly deviated wells, using standard 7/32 wireline. The high efficiency DC motor and drive system minimizes power requirements, allowing the control and monitoring of its operation. An overlay of head tension and tractor load curves provides the operator with valuable information about the tractor performance and well conditions.
Features
Proven Technology Successful operation over a distance of 8,300 m.
Efficient, Powerful DC Motor The MULE is designed to push the tool string along horizontal sections of up to 4,000 m, while drawing less than 1.4A at 600V.
Standard 7/32" cable The low power requirement means that the MULE can run on a mono-conductor and does not need any special cables.
Outside Diameter 2 1/8" The slim tool can be deployed through most expected restrictions, yet will still operate in casing sizes up to 9 5/8".
Simultaneous Data Transmission and Tractoring Data can be sent to the surface while the MULE is operating.
Software Simulation package The complete operation can be pre-planned with loads and head tensions being accurately predicted.
Reverse Tractor and Fail-safe In order to maximize job confidence, the tractor is designed with fail-safe devices, and can also move in the up-hole direction.
Tool Specifications
| Imperial | Metric | |
|---|---|---|
| Length | 22.5 ft | 6.86 m |
| Weight | 150 lb | 68.0 kg |
| Diameter | 2.125" | 554 mm |
| Max. Load | 670 lbf | 3000 N |
| Max. Pressure | 650 psi | 1020 bar |
| Max. Temperature | 300 °F | 150 °C |
| Max. Casing ID | 9.0" | 229 mm |
| Min. Casing ID | 3.0" | 76 mm |
| Max. Speed | 35 ft/min | 9 m/min |
Sensors
- Head Tension
- Tractor Load
- Tractor Speed
- Hydraulic Pressure
- Temperature
- Head Voltage
- CCL
- Cable Current
- Logic Voltage
- Switch Status
- Motor Status
- Motor Rev/min
- Distance Traveled
Applications
- Horizontal and Highly deviated Well Logging
- Horizontal and Highly deviated Well Perforating
- Horizontal and Highly deviated Well Plug Setting
If you are interested in this service, please fill out our Service Request Form, and we will get back to you promptly.
News & Articles
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Nigeria: How the proposed petroleum industry bill PIB will boost local participation
by Engr. Debo Fagbami (Mar 02, 2010)
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Nigeria: How the proposed petroleum industry bill PIB will boost local participation
by Engr. Debo Fagbami (Mar 02, 2010)
Case Histories
Oildata was the first company to successfully record a horizontal well Production Log on an ExxonMobil Well in West Africa
– Ubit 71, Ubit 75, 1995
The first service company to log a memory log on a short Radius horizontal well in Africa.
– Ashland, 1997
Oildata was the first company to design and install an open-close-open straddle packer system to isolate a high pressure gas zone while simultaneously permitting the production of oil from a deeper horizon.
– ChevronTexaco, 1998, 1999
Oildata was the first company to deploy a wireline tractor in a horizontal well in Nigeria to acquire reservoir data without coiled tubing or pipe conveyed logging equipment.
– Shell, 1999
Oildata successfully re-established oil production from the abandoned Salt pond Marginal field, offshore Ghana.
– SOPC/GNPC, 2002
Oildata has performed 100% of ChevronTexaco's non-rig well interventions and data acquisition requirements in Nigeria since 1996
– ChevronTexaco, 1996