by Tanada » Wed 28 Nov 2012, 10:15:17
$this->bbcode_second_pass_quote('SamInNebraska', '')$this->bbcode_second_pass_quote('Plantagenet', '
')The amount of oil originally in the reservoir at Ghawar didn't change since 1975---just the amount that could be produced. This process of technological innovation continues today----a new "smartwater" injection treatment for Ghawar has just been proposed---this new program would engineer changes in the physical properties of the injected water to coax even more oil out of the ground.
Got it! So this is a problem then, right? We take all the oil fields in the US, apply technology to them, and suddenly what the IEA has been saying recently makes sense? I am selfish, I wish this could happen so the pipe through Nebraska would be canceled, Texans are used to oil spills and tearing up their land for some reason or another, let us develop all the oil there and leave the stuff in Canada alone. Or let the Chinese have it.
You forget many of the really big fields world wide have already added most or all of the techniques you have just been told about, they were not just used in Ghawar, they were used in Texas and Siberia and Mexico and China and Indonesia because the technology spreads all over and as the price of a bbl goes up it is more economical for more fields to deploy the technology off the shelf. They now have incredibly detailed imagery of the underground oil formations of many if not all of the major oil fields on earth. Horizontal drilling has already been used on most of them as soon as it was profitable to do so and the equipment was available to do the work. Not all fields use water injection, the giant field Cantarell in Mexico injects nitrogen gas instead, they built a huge nitrogen producing plant specifically for the purpose. Different grades of petroleum work better with different stimulation injections, that doesn't mean if they are not using water they are not doing what they can to get the most petroleum out. You can even say that Steam Assisted Gravity Drainage (SAGD) and Toe Heel Air Injection flame front drainage (THAI) being used in deep area's of the Alberta sands are advanced recovery methods because the alternative is physically mining and processing the sand above ground.
The first oil field exploited in Saudi Arabia was Dammam, it produced oil from the 1930's until 1982 when it was sealed up. A year or so ago I read that the KSA was re-drilling the shut in field using 4D seismic imagery and horizontal drilling. You don't go and reopen a very old depleted field and spend lots of money redeveloping it unless you can make back your investment. Dammam was not ever a giant field, but they are planning to invest over a Billion dollars in the expectation of getting 100,000 bbl/d out of the field once again. Because the field has been shut in for 30 years a lot of new technology will now be used on it that was not available when it was closed. That doesn't make oil magically appear, the oil being removed before was cheap and this oil will be much more expensive to produce, but the world price is high enough now to make that a profit making decision. Aha I found a link!
http://www.arabianoilandgas.com/article ... LYZS-_4JYg$this->bbcode_second_pass_quote('', 'S')audi Aramco is planning to re-start oil production at a field mothballed in the 1980s, as the national oil company aims to sustain production at a time when disruptions elsewhere are putting increasing reliance on Saudi crude, according to a report from the Economist Intelligence Unit.
Aramco is reportedly sizing up the Dammam field, which was first drilled by SOCAL (now Chevron) in 1936. The Dammam 7 well first gave an indication of the immense potential of Saudi Arabia’s oil deposits.
Aramco first planned to revive the Dammam field in 2008, with the 500 million barrel field thought to be easily exploitable to a level of 100,000 barrels a day. The well is now in a residential area so will require careful de-mothballing.
Reduced global consumption and the development of fields in other countries through the 1980s led the Kingdom to lower its production from 10 million barrels per day to just over 2 million. Production shut at Dammam 7 in 1982, after 45 years in service with 32 million barrels.
Aramco is responding to increasing calls on its production capacity, as both Asian and European markets are looking for the Kingdom to fill for Iran’s production, which is subject to sanctions from the US and EU.
If the numbers in the story are accurate then they will produce 500 Million bbl at a rate of 100,000/d so for 5000 days or about 13.7 years. Sounds great until you realize it ran for 45 years on its first production period and this production period is less than one third as long. When people talk about super straw technology this is the effect they are referring too, you get the oil out much faster now than you did in the past. That doesn't mean you get ultimately more, but in terms of return on investment you get it much quicker.