Oilfield services giants Halliburton and TechnipFMC have unveiled a joint subsea fibre optic service that the companies say is the first distributed acoustic sensing technology for subsea wells.

Houston-based Halliburton and UK-listed TechnipFMC said the new Odassea service enables operators to conduct interventionless seismic imaging and reservoir diagnostics to trim costs while “improving reservoir knowledge”.

The technology integrates hardware and digital systems “to strengthen digital capabilities in subsea reservoir monitoring and production optimisation”, the companies said in a joint release.

The service incorporates Halliburton’s fibre optic sensing and completions technology, and its reservoir diagnostics capacity, in combination with TechnipFMC’s optical connectivity from topsides to the subsea well completions, according to the statement.

“Through the collaboration, operators can accelerate full field subsea fiber optic sensing, design and execution,” the companies said.

Trey Clark, vice president of Halliburton’s wireline and perforating business, said: “We are excited to introduce a new technology platform which allows our customers to monitor reservoir performance in real-time.”

Christina Johansen, vice president of TechnipFMC subsea product manufacturing, added: “This project enables an enhanced level of reservoir understanding for our customers and expands our unique integrated subsea solution.

"We are proving that we can leverage the competencies and know-how to drive the change our industry needs for a higher level of sustainability.”