Transition zone seismic acquired offshore Turkmenistan

Aug. 21, 2012
RWE Dea has completed what it claims was the first 3D seismic survey off the coast of Turkmenistan.

Offshore staff

ASHGABAT, Turkmenistan – RWE Dea has completed what it claims was the first 3D seismic survey off the coast of Turkmenistan.

The 400-sq km (154-sq mi) transition seismic program, acquired over block 23, moved out from the onshore region to shallow water, and involved a 400-strong team mobilized on special vessels and land vehicles.

Measurement cables with receivers were laid from the mainland up to 10 km into the shallow-water region. As seismic sources, airgun arrays were deployed in the water, with the vibroseis method adopted for the onshore section. In addition to recording of 3D data, certain 2D seismic measurements were taken. The program was preceded by an extensive environmental survey.

The program was designed to assess geological structures in Miocene and Pliocene rocks at subsurface depths of 3,000-6,500 m (9,842-21,325 ft).

“We’re particularly pleased with the high quality of the data obtained, which will enable us to prepare a meaningful assessment of the area surveyed,” said Dr. Werner Schwarzhans, senior vice president, exploration at RWE Dea.

The company’s geologists and geophysicists in Hamburg will interpret the data over the next few months.

8/21/2012