Composite rod ‘extends’ intervention capabilities

Well intervention equipment specialist C6 Technologies has completed the first application of its ComTrac technology.

Offshore staff

STAVANGER, Norway – Well intervention equipment specialist C6 Technologies has completed the first application of its ComTrac technology.

This was for a two-week program in the Norwegian North Sea, in which the company’s parent Archer operated the system via a downhole tractor.

ComTrac comprises a reel of spoolable 12-mm dia. semi-stiff carbon composite rod with electrical conductors.

So far, the technology has been proven to operate in lengths of up to 8 km (5 mi).

According to the company, deployment with a tractor provides intervention capabilities far beyond those of conventional wireline technology in terms of length and load, particularly for horizontal wells.

In this case, the tasks included fishing, fluid saturation logging, and perforating with long sections of high shot density guns.

The low friction, stiffness and minimal stretch of the carbon composite rod are said to eliminate the “stick and slip” issues encountered with wireline cables.

This, C6 claimed, allows ComTrac to deliver a high level of data quality and repeatability, particularly for high-resolution logging services such as fluid saturation logs.

It added that the system offers superior strength and lift performance when carrying heavy loads, allowing for longer tools and perforation guns to be deployed.

C6 CEO Hans Kristian Hegland said: “Wells are getting deeper and longer and today there are limits to how far current intervention technology can go… The next step is to expand the operation limits of the technology to 12 km [7.5 mi] and beyond.”

C6 Technologies is a joint venture between Archer and IKM, with C6 designing and manufacturing the ComTrac system.

03/23/2018

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