AnTech introduces COLT Intervention String
Posted: 11 November 2003
New system measures downhole conditions in real time
AnTech Ltd, a specialist engineering design and manufacturing
company serving the international upstream oil and gas industries,
has announced the introduction of the new COLT Intervention String.
With many wells past peak production, well interventions are being
used to prolong productivity. As revenues from such wells are already
substantially reduced, interventions must be extremely cost-effective.
Real-time measurements taken while pumping through
A successful well intervention depends in large part on
having a solid grasp of what is taking place downhole. AnTech’s
COLT Intervention String incorporates a host of sensors that measure
critical downhole conditions, including temperature, load and gamma
ray, among others. As an added plus, the system is designed to pump
through while offering a broad range of information. As a result,
the engineer has instant access to data that offers a timely and
accurate picture of what is taking place downhole. Armed with this
data, engineers can make quick, informed decisions.
Increased Reliability with Vibrasave Technology
As with AnTech’s award-winning COLT Coiled Tubing
Drilling BHA, the COLT Intervention String features AnTech’s
Vibrasave technology and the “quickconnect” system.
It is protected from punishing vibration and shock with AnTech’s
Vibrasave. AnTech developed Vibrasave to improve the reliability
of the drilling BHA by reducing the effects of vibration on the
tool string. The system is extremely robust, and has successfully
withstood rigorous vibration while operating in Southeast Asia,
Alaska and the Middle East.
The quickconnect system allows components of the tool string to
be made up and broken down easily. The primary advantage of this
is that the Intervention String can accommodate up to eight electrical
connections running through it, while still allowing for upwards
of one inch for hydraulic flow for pumping operations.
Straight Hydraulic Flow Path Minimises Pressure Drop
An additional feature of the COLT Intervention String is
its large, straight hydraulic flow path that runs through the centre
of the tool. This feature minimises any pressure drop throughout
the length of the tool string, giving more pressure for intended
operations. It also has the added benefit of reducing the vibrations
transmitted from the fluid to the tool, thereby increasing reliability.
An electrical release also means that there is no reason to prepare
for possible over-pressure or over-pulling, inadvertently causing
release. Engineers can rest assured that the release mechanism is
continually monitored, acting as an indicator that the electrical
circuit is operational and ready-to-use.
Electrical Actuator Aids in Potential Search Operations
The COLT Intervention String is designed with flexibility
in mind. It can be fitted with an electrical actuator that serves
as a pointing device. This pointing device is used to point the
tool at any point within a 3º angle, making it deal for search
operations, such as fishing or identifying a sidetrack.
“With the dramatic increase in CT well interventions to prolong
well productivity, contractors are keen to contain costs by making
sure the intervention is as efficient as possible,” said Toni
Miszewski, Managing Director of AnTech Ltd. “With its ability
to monitor downhole conditions in real time and withstand the unrelenting
vibrations of the downhole environment, we offer engineers a highly
reliable, effective tool in the COLT Intervention String,”
he added.
Building on Success
The COLT Intervention String is the second and latest addition
to the AnTech COLT family. The 2001 introduction of the COLT, a
coiled tubing drilling BHA, represented a major breakthrough for
the industry, especially for gas drilling contractors. Since then,
it has been used successfully throughout the world. AnTech received
a Special Meritorious Award for Engineering Innovation 2002 in the
Drilling – Downhole Category from Hart’s E & P magazine
in recognition of the system’s ability to significantly improve
productivity.
About Antech Ltd
AnTech Ltd specialises in the design and manufacture of
innovative products for the international upstream oil and gas industries.
Founded in 1992 in Exeter, England, AnTech Ltd is known throughout
the world for its range of award-winning coiled tubing tools, and
related permanent completion products.
AnTech Ltd managing director and founder Toni Miszewski holds 17
patents for related oil tools and technologies he developed over
the years.
In addition to its pioneering work within the design and manufacture
of completion products, AnTech Ltd offers StringView, the cutting-edge
well visualisation software package. This highly regarded software
program integrates legacy data systems, making it possible to maintain
consistent, professionally presented well diagrams. AnTech Oilfield
Software received well-deserved recognition in the TOP 50 People
in Energy IT Awards 2001 sponsored by PennWell’s New Energy
Economy magazine.
The oilfield software developer won the Award for Best Promotion
for the recent launch of StringView Online LE, which is available
free-of-charge online at www.stringviewonline.com.
As one of the leading design engineering companies in the UK, most
major oil services companies have retained AnTech Ltd to develop
coiled tubing, downhole and completion tools on their behalf. As
a result, operators and service companies actively use AnTech’s
pioneering products and technology to maximise oil production performance
in a safe, and cost-effective manner.
For more information see www.antech.co.uk.
Posted by Richard Price,
Editor Pipeline Magazine
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