AnTech Introduces New Equipment for Electric Wireline in Coiled Tubing
AnTech Ltd, a specialist engineering design and manufacturing company serving the international upstream oil and gas industries, announced that it has expanded its range of equipment for electric wireline in coiled tubing (CT).
As coil companies strive to maximise equipment capability, the number of CT operations has increased dramatically during the past five years. Those involved in CT operations are well aware of the fact that this effectiveness is substantially increased when electric line is installed in the coil. As a result, more and more CT operators are opting to use electric wireline CT. They realise that by doing so, they can offer more services because they can run a wide range of intervention tools on the system, and deliver greater benefits to their customers.
Every electric line CT operation requires equipment to effectively terminate the coil downhole and at surface. Reliable termination is absolutely essential because a fault will result in the run being aborted.
New Additions Enhance Logging and Perforating on Coil
The company reports that four new items have been developed to facilitate logging and perforating on coil:
•8-way Collector Bulkhead, (10,000 psi) – utilises a bulkhead with seven-conductor feed-thru and boot assembly.
•Electrical release for the 2-7/8” 7 conductor Cable Head – ensures reliable and safe termination downhole.
•1-¾ inch Single Conductor Cable Head –with electrical and mechanical release options for smaller tubing sizes and restrictions.
•A Dual Polarity Electrical Release for multiple shot perforating operations that require positive and negative current for firing.
“The addition of these items bodes well for those carrying out logging and perforating jobs with electric line in coiled tubing. The development of two new Electrical Releases extends the tool’s application in perforating where use of a mechanical shear release poses the risk of release upon detonation,” said Tim Mitchell, Product Line Manager - CT Tools for AnTech. “To be safe, an electrical release should be used when perforating to achieve a controlled release, something that is not possible with a safety joint,” he added.
Already, AnTech has fulfilled orders for four logging head systems featuring the 8-way Collector Bulkhead, Electrical Release, 1-3/4” Cable Head and Dual Polarity Electrical Release for use in China and the Middle East.
All components of AnTech’s wireline CT equipment range, including the four new elements, are compatible with most types of electric wireline in use today.
About AnTech’s Wireline in CT Equipment Range
AnTech offers a comprehensive electrical connection package, from the end of the downhole tool through to its termination in the control cabin. This end-to-end solution makes it possible for CT companies to log and perforate on coil.
It was just one year ago that AnTech introduced the electrical Slip Ring Collector device, which provides electrical continuity between the rotating reel core and the surface data acquisition equipment. This is achieved by fitting the Slip Ring Collector to the axle of a CT or wireline reel. This accommodates the rotation of the CT reel, and connects the Collector Bulkhead through the rotating reel core to the data acquisition equipment. The unique design of the Slip Ring Collector makes it a compact product that is easy to install, while meeting stringent design criteria that allow it to be used in hazardous areas. The fact that it is ATEX and IECEx-certified means that it is safe to use in Zone 1 explosive atmospheres.
With the launch of the Collector Bulkhead and seven-conductor Logging Head in 2008, AnTech began offering a Logging Head to suit every customer’s CT unit andapplication. The Wireline-CT equipment range for logging and perforating makes it possible for operators to use any kind of wireline, confident in the knowledge that they will be able to create an electrical connection between the downhole equipment and the surface data acquisition equipment, without interference from the rotating reel core.
