TPI May 2013

products & developments

Specifying tubular lining material for HPHT environments

designed to meet the demands of HPHT environments.

span of decades. Specifiers can also learn how the supplier has capitalised on past experience to produce new materials. For instance, since 1964 more than 100 million feet of Duoline 20 glass reinforced epoxy tubular liners for conventional wells have been installed worldwide. Duoline Technologies took its experience of meeting the needs of conventional wells and incorporated manufacturing techniques into the development and production of D-350 liners specifically designed and manufactured for the HPHT environment. Duoline D-350 now provides reliable corrosion protection of steel tubulars with temperature resistance up to 177°C (350°F).

Oilfield product specifiers have recently been pushing the limits of conventional materials to meet the technical challenges posed by high pressure, high temperature (HPHT) environments. Despite that fact, because applied materials will remain in HPHT well service for years during a full production cycle, many engineers have discovered that products remain at risk of earlier failure due to extremely harsh conditions. Consequently, specifiers of products for HPHT may practice a higher-than-normal level of knowledge- based decision-making to avoid the high cost consequences of failure. As HPHT activity continues to grow and well conditions become more severe, more advanced materials are required. Some manufacturers have taken necessary steps to invest in new material development specifically

When presented with a new materials option, specifiers may be diligent in investigating the performance history of the potential supplier’s other product lines. Searching company websites can be one place to start the investigation. Case studies can provide valuable proof through performance. Although the demands of an HPHT environment present unique challenges for applied materials, successful performance of a supplier in addressing the needs of other oilfield environments may recommend their validity with regard to new products. An example of product performance proof as provided through actual well production usage can be viewed at www.duoline.com, which documents the successful use of Duoline ® liners in well service over the

Duoline Technologies – USA customerservice@duoline.com www.duoline.com

Weld purge oxygen monitors To complement its range of pipe purging systems, Prestige Industrial Pipework Equipment (PIPE) Ltd has a comprehensive range of weld purge oxygen monitors to suit all exotic high purity pipe welding applications. purge monitor from PIPE is the Handy Purge Pro 5, designed to meet the stringent requirements of titanium welding, where even the slightest amount of oxidation is unacceptable. The Handy Purge Pro 5 reads oxygen levels down to 0.0005% (5 parts per million), something that the company claims no other handheld oxygen monitor is currently capable of.

the welder to achieve perfect, oxide-free welds. As with the Handy Purge Pro 5, the Pro Purge 1 is connectable via cable or Bluetooth to enable continuous logging of data. With a 100m Bluetooth range, the Pro Purge 1 can also be controlled remotely via a mobile phone.

The Handy Purge 100 entry-level model is a suitable tool for the welder’s toolbox. This unit measures levels of resting oxygen down to as low as 0.01% (100 parts per million), making it suitable for the majority of high purity welding applications. The Handy Purge 100 is a battery-powered unit, and uses a replaceable sensor, guaranteed for 12 months, with an average life span of two to three years. The Handy Purge 100 Plus, also battery- powered, is designed to accurately measure oxygen levels down to 100 ppm, and features an integral pump for constant readings with no operator intervention. An internal moisture trap and line filter protect the oxygen sensor from potential contaminants. The flagship handheld

Prestige Industrial Pipework Equipment Ltd – UK sales@pipe-ltd.com www.pipe-ltd.com

Powered by built-in rechargeable batteries, the Handy Purge Pro 5

Weld purge monitors from PIPE

features easy-to-use software and a colour screen. It can be connected to a phone or PC and printer via Bluetooth or cable (RS232 interface) to log and store data continuously, if required. For measuring oxygen down to the lowest levels for the most critical welding applications, PIPE Ltd offers the Pro Purge 1. Capable of measuring oxygen levels down to 0.00005% (0.5 parts per million), it allows

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May 2013 Tube Products International