Sub - This will require some assumptions. If it were a conventional water drive oil reservoir the use of horizontal well bores would allow higher rates and probably better ultimate recovery. Lifting methods have improved especially in terms of efficiency but aren't game changers. Not only would the new 3d seismic data make finding such a field easier it would also eliminate a lot of unsuccessful development wells in a new discovery. But I'll also point out that I've seen about as many potential prospects killed as I've seen generated by such data. Depending upon the trend a huge amount of respect is given such data. I've seen many operators refuse to even review a prospect if there wasn't 3d data across it.
Unconventional reservoirs are a different animal. And the question isn't theoretical: check out Al Shaheen Field
http://www.maerskoil.com/global-operati ... qatar.aspxThis is a huge tight chalk reservoir. Not unlike the Austin Chalk trend in Texas that was the hottest oil play on the planet in the 90's.
"Appraisal wells in the field were completed in 1994, along with the acquisition, processing and interpretation of 2D and 3D seismic data. Maersk Oil's horizontal well technology has been utilised since 1994, drilling wells up to 31,000ft in length. Production facilities were extended in 1995-96 with new subsea export pipelines, an additional single-point mooring loading buoy, new process facilities and a STAR-type wellhead platform. 2003 figures estimated reserves of about 780 million barrels of oil. The facilities were expanded in 2004, following further development plans in 1996 and 2001, with three additional platform locations."
I think they've actually drilled out to about 35,000' horizontally by now. Compare that 5,000' Eagle Ford laterals some consider very long. Some years ago I was offered a contract to be one of the 12 geosteering geologist's working for Maersk. But the link points out one of the hurdles to rapidly developing a new big discovery: political control. Qatar decided they didn't want to put as much production into the market place as Maersk was planning. The first phase I was to be involved with was going to have 6 jackup rigs drilling 900 wells. It was not to be. Not due to lack of technology but a lack of gov't permission.