CGGVeritas Offers Best-Quality Data Library in Key Locations
CGGVeritas continues to invest in expanding its data library portfolio in the most prospective locations. Acquired and imaged with the latest technologies including wide azimuth (WAZ), its multi-client surveys provide the clearest geological insight.
CGGVeritas has been busy collecting and imaging library data across the Americas, from the vigorous and promising Santos Basin offshore Brazil to the dynamic resource plays of North America.
In the Santos Basin, CGGVeritas is completing acquisition of the Cluster Extension, which has received strong industry support, particularly after the original 23,000 sq km Cluster survey led to the recent world-class discoveries of Tupi, Jupiter, Carioca and others.
The 16,000 sq km Extension is being acquired in six swaths to provide a steady stream of deliverables to the industry, all over open acreage to the south of the original Cluster survey.
Swaths three and four, the first to be acquired, will be delivered as a Fast-Track PSTM in the fourth quarter 2009. Final deliverables will include Fast-Track PSTM after each swath, Controlled Beam Migration PSDM, Kirchhoff PSDM and Reverse Time Migration (RTM) PSDM.
Offshore Colombia, CGGVeritas has four long-offset 2D surveys. Observations made from the seismic data indicate an active petroleum system, a possible/probable thermogenic source, migration, reservoir beds, multiple styles of trapping structures and a high concentration of thrust faults. Three of the surveys total over 13,000 km and cover acreage included in the upcoming 2010 bid round.
An exciting prospective area of Jamaica has been imaged with a new long-offset 2D survey. The 6,118-km area was shot by the CGGVeritas vessel Discoverer 2 deploying a 9,450 m-long streamer and a powerful 3,980 cu. in. point source array. The survey was conducted in co-operation with the Petroleum Corporation of Jamaica (PCJ) to complement the second official offshore Jamaica licensing round, expected to be announced by the PCJ in early 2010. Final products are available.
In the Gulf of Mexico, the Vision has just completed the first phase of the Three Corners WAZ survey. This project covers the geologically challenging areas of NE Alaminos Canyon and stretches southwest to the Perdido fold belt area, covering the Great White and Silvertip discoveries. Preliminary volumes delivered to industry are very encouraging. This 150-block survey adds to our ever growing WAZ database, now standing at over 1,600 blocks.
The RTM PSDM final volume of the Garden Banks WAZ program of 676 blocks is scheduled for delivery in April 2010. The excitement of the Tiber discovery in the middle of this survey has encouraged interest in this well-positioned program.
Onshore, CGGVeritas is active in three of the hottest resource plays in North America.
The Tri-Parish Line (TPL) 3D WAZ survey is on schedule for completion in April 2010. Due to its key position in the heart of the Haynesville shale play, TPL has grown to cover almost 850 square miles. The two high-channel crews are acquiring the wide-azimuth data in a high-capacity configuration specifically designed to enable enhanced fracture detection and understanding, critical parameters for exploration and production. In mid-October, preliminary volumes of the Parish Line area were delivered with very favorable results.
Further north, in the Bakken oil play, acquisition started in mid-October on the 100-square mile Peninsula 3C-3D survey located within the Fort Berthold Reservation in North Dakota. The crew is deploying three-component MEMS sensors to acquire P-wave and S-wave data for this project.
Taking advantage of the full-vector particle motion recorded by the 3C sensors, adaptive polarization filters will be used to effectively remove ground-roll noise.
The 3C data will then be used to produce PP and PS depth images, for lithology discrimination and fracture analysis. This will greatly aid well placement and reservoir development plans. Current drilling targets are the oil-rich Bakken Shale and the Three Forks/Sanish formation. Deliverables from the 150-square mile survey will be available in March 2010.
In Canada, CGGVeritas has completed the Farrell Creek 3D survey just north of Hudson’s Hope in British Columbia. The 200 km2 vibroseis survey was acquired with 300-m source line intervals and 420-m receiver line intervals.
The area covers the shallow coalbed methane targets to the southeast and extends to the deeper, prospective Halfway, Montney Shale and Debolt formations and west into the Outer Foothills. There are up to eight productive geologic zones under the Farrell Creek survey, from the shallow Moosebar/ Bluesky/Gething to the deep Belloy and Debolt, all of which are productive for gas nearby.
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