Three new technologies for onshore, offshore operations
Three new technologies are available that complement WesternGeco Q-Technology services: WesternGeco DSC dynamic spread control for offshore surveys and the new Desert Explorer DX-80 vibroseis unit and MD Sweep for onshore operations.
DSC dynamic spread control is a new automated vessel, source, and streamer steering technology. It enables repeatability for 4D time-lapse studies and helps increase accuracy in Q enabled over-under and rich and wide azimuth surveys, the firm says. The Q-Marine technology platform, consisting of steerable streamers, single-sensor acquisition, dense acoustic positioning network, and calibrated marine sources, continues to evolve with the addition of the DSC system.
The Desert Explorer DX-80 vibroseis unit has been specifically developed to complement the Q-Land integrated acquisition and processing system. This vibroseis unit generates an 80,000 lb peak hydraulic force with low distortion across a broad bandwidth.
The new MD Sweep design methodology enables a vibrator to produce more energetic low frequencies than a traditional sweep design approach, the firm notes.
The suite of advanced geophysical services includes electromagnetic services and Q-Technology single-sensor high-fidelity seismic acquisition-to-inversion platform.
Source: Schlumberger Ltd., 5599 San Felipe, 17th Floor, Houston, TX 77056.
New standardized dry chlorine scrubber
The new EST dry emergency chlorine scrubber, Type DES 3000, is a standardized, 1-ton system designed to mitigate accidental chlorine gas releases in accordance with Uniform Fire Code requirements.
It offers a safe, user friendly, and low-maintenance alternative to wet scrubbers and features lower long-term maintenance and operating costs than traditional wet scrubber systems, the company says.
The unit is preengineered and available for shipment in 8-10 weeks. A variety of custom configurations also is available.
The DES 3000 has a room exhaust rate of 3,000 cfm and has only one moving part-the fan. Type STS dry pellet media used in the DES 3000 system is landfill disposable and nonhazardous in the fresh and spent forms.
If not exposed to chlorine, the Type STS media has an indefinite life expectancy. As a result, dry media replacement and disposal costs over a 20-year operational period, assuming complete media exhaustion, are as low as half of the cost for caustic solution used in wet scrubbers, the firm points out.
Dry chlorine scrubbers do not require liquid chemical leak containment or double wall vessel construction, and they operate at subzero temperatures without the use of heaters.
Source: Severn Trent Services, Suite 300, Fort Washington, PA 18951.