Equinor Deploys Sonardyne Technology at Johan Sverdrup

Equinor plans to deploy cabled subsea instrumentation from Sonardyne International to help increase the accuracy of time-lapse seismic data at the Johan Sverdrup oil field.

From first production at the development, Equinor plans to use seafloor based seismic cable permanent reservoir monitoring (PRM) technology to observe what is happening in the reservoir over time to help maximize recovery rates.

Equinor has engaged subsea services contractor Subsea 7 to install a Sonardyne Pressure Inverted Echo Sounder (PIES) at 110 – 120 meter water depth at Johan Sverdrup.

PIES instruments continuously measure the two-way travel time of sound waves propagated through the water column from the seabed to the sea surface as well as the pressure (depth) at the seabed. This data is then used to calculate a continuous time history of average water velocity and tidal variation throughout the whole water column.

This will be only the second time where PIES units are hardwired into topside power and communication infrastructure, which means Equinor will have instant and continuous access to their data, the company explained.

Conventionally, PIES data is collected acoustically by a passing surface vessel, including unmanned surface vessels.

Shaun Dunn, global business manager for Exploration and Surveillance at Sonardyne, said, “Time-lapse seismic is a key tool to help operators optimize their recovery rates through improved reservoir visualization, modelling and eventually also predictive analytics. By using a PIES, Equinor will have higher repeatability in their seismic data which further supports proactive reservoir management.”

Share this article

Follow Subsea World News

Events>

<< May 2019 >>
MTWTFSS
29 30 1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31 1 2

OCEANS 2019

OCEANS is the bi-annual event for global marine technologists, engineers, students…

read more >

FPSO Brazil Congress 2019

Charging ahead with 24 planned orders by 2022, Brazil has once again solidified its status as one of the world’s foremost oil and gas leaders…

read more >

OWI WA 2019

West Africa’s only dedicated Offshore Well Intervention Conference is returning for its second year…

read more >

Global Petroleum Show (GPS)

The Global Petroleum Show Conference is a comprehensive three-day program where…

read more >