LONDON– Wintershall Noordzee has commissioned Plexus Holdings to design and develop a mudline crossover subsea wellhead system with high pressure/high temperature capabilities.
Under the $800,000, six-month contract, Plexus will engineer equipment that should allow Wintershall to complete and then produce from a temporarily abandoned exploration well that employed the Plexus TRT-S mudline system.
Through use of Plexus’ proprietary POS-GRIP friction-grip technology, the tubing hanger diameter has been reduced to enable installation via a standard casing riser, rather than through a larger diameter high pressure riser system between the mudline and surface BOP.
The planned configuration will allow multiple riser strings to be re-established during the subsea production conversion of a pre-drilled mudline well, thereby complying with increasing requirements for multiple barriers.
Plexus will own the intellectual property rights to the new mudline crossover subsea wellhead system. Following the design process, it will quote for the manufacture and supply of two subsea wellhead systems for installation at the end of 2Q 2013.
In March, Plexus launched the HGSS JIP to develop a new method of engineering for subsea wellheads using the company’s friction grip technology.