ABSTRACT

We acquired high resolution 3D streamer seismic data (HR3D) with a small (300 cu in) air-gun source array and 18 short (100m) hydrophone cables over three deep water fields. The resulting data show that high resolution 3D images can be obtained at reservoirs located up to 2000 m below the seafloor in deepwater environments. An additional 2D test of the system demonstrated a time-lapse repeatability of NRMS=15% in zones where the reservoirs lay above the first water bottom multiple. This work suggests that HR3D surveys are suitable for low-cost time-lapse seismic monitoring (HR4D) of deepwater reservoirs and geohazards that are shallow relative to the water depth.

Presentation Date: Tuesday, September 26, 2017

Start Time: 1:50 PM

Location: 351F

Presentation Type: ORAL

Keywords:
annual meeting, repeatability, water velocity, baseline, seg seg international exposition, reference list, upstream oil & gas, reservoir, small source, deepwater environment
Subjects:
Reservoir Characterization, Seismic processing and interpretation
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2017. Society of Exploration Geophysicists
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