Multiple feasibility studies were carried out to demonstrate to Saudi Aramco that the Well Tractor® 318 would do the job. Because of the recent advances in DC electronics the Well Tractor proved able to execute the job under the extreme well conditions.
Prior to the operation, Welltec® and Halliburton collaborated together to fully test the newly designed electronics. This included heat testing and ensuring the electronics were compatible with the Halliburton equipment and cable.
The job was composed of two runs; the first to convey a cement bond log and a multi calliper imaging tool. Here the toolstring was run in hole with the Well Tractor and logging tool to the kick-off point at about 15,600 ft, at which point the Well Tractor was engaged and conveyed the toolstring to 18,725 ft.
On the second run, the Well Tractor conveyed a 3 3/8″ gun to perforate the desired zone at 18,725 ft. In total, the Well Tractor covered a distance of almost 8,500 ft.
This was the first time the new DC package was used in the Middle East, but it clearly demonstrated the value of the technological development. The Well Tractor worked flawlessly despite the high temperatures, high well deviation and a 18,725 ft extended reach section.
Using Welltec’s e-line solution the operator achieved better data quality by utilizing more advanced depth determination tools. In addition, Welltec reduced costs and increased operational efficiency by saving valuable time. Last but not least, the environmental impact and risks were reduced as the e-line solution eliminated mobilizing a rig.
WELL TYPE: GAS PRODUCER
MAX. WELL DEVIATION: 91°
MAX. DEPTH: 18,725 FT
MAX. PRESSURE: 12,000 PSI
MAX. TEMPERATURE: 310°F
DISTANCE TRACTORED: 8,490 FT