david dissadent
New Member
Ghawar now with 43% water cut?
http://www.glgroup.com/News/Hallibu...t-of-largely-depleted-Ghawar-field-44671.html
For those less familiar with all this, Ghawar is the keystone of global oil production. One of only a handfull of fields that have produced more than 1 million barrels a day, it produces about 6% of the worlds daily oil production. Also the sedementry layer that is the resevoir rock (the Arab D layer) if famous for its permiability, the flow rates were awesome.
The great fear is that Ghawar will go into a decline as steep as Canterall did in Mexico (until recently the worlds third biggest daily producer). Canterall has hit 17% pa decline.
http://www.glgroup.com/News/Hallibu...t-of-largely-depleted-Ghawar-field-44671.html
Well just the top bit. But still that top bit was once the most prolific bits of sedementry rock in petrolium history. Reading through this article by Lynch (an uber cornocopian) it is interesting to see what lengths they are going to keep Ghawars production up. Nothing really new in this article to people who have read Simmons Twilight in the Desert but its a nice summary of the amount of work needed to keep the worlds largest oil field in production.Ain Dar (and other parts of the field) began producing salt water in the late 1970s and by 2005, the cut was 42%. All of Ain Dar was wet since 1984. Once water became a major problem, many existing vertical wells were converted to short lateral horizontals running along the top 10 feet of the Arab D zone, the main pay.
For those less familiar with all this, Ghawar is the keystone of global oil production. One of only a handfull of fields that have produced more than 1 million barrels a day, it produces about 6% of the worlds daily oil production. Also the sedementry layer that is the resevoir rock (the Arab D layer) if famous for its permiability, the flow rates were awesome.
The great fear is that Ghawar will go into a decline as steep as Canterall did in Mexico (until recently the worlds third biggest daily producer). Canterall has hit 17% pa decline.