by kublikhan » Tue 02 Apr 2019, 12:25:03
$this->bbcode_second_pass_quote('Plantagenet', 'O')ne thing I'd like to see is an estimate of the remaining reserves at Ghawar. Even after 40+ years of production, this old supergiant field still comprises about half of the total Saudi oil production.
48.2 billion barrels according to the recently released info. And it's production is more like a third of Saudi production. Ghawar has been declining faster than estimates. That means other fields in Saudi Arabia must have been picking up the slack.
$this->bbcode_second_pass_quote('', 'W')hen Saudi Aramco on Monday published its first ever profit figures since its nationalization nearly 40 years ago, it also lifted the veil of secrecy around its mega oil fields. The company’s bond prospectus revealed that Ghawar is able to pump a maximum of 3.8 million barrels a day -- well below the more than 5 million that had become conventional wisdom in the market. “As Saudi’s largest field, a surprisingly low production capacity figure from Ghawar is the stand-out of the report”.
The 470-page bond prospectus confirms that Saudi Aramco is able to pump a maximum of 12 million barrels a day. While the prospectus confirmed the overall maximum production capacity, the split among fields is different to what the market had assumed. As a policy, Saudi Arabia keeps about 1 million to 2 million barrels a day of its capacity in reserve, using it only during wars, disruptions elsewhere or unusually strong demand. Saudi Arabia briefly pumped a record of more than 11 million barrels a day in late 2018. “The company also uses this spare capacity as an alternative supply option in case of unplanned production outages at any field and to maintain its production levels during routine field maintenance,” Aramco said in its prospectus.
Aramco also disclosed reserves at its top-five fields, revealing that some of them have shorter lifespans than previously thought. Ghawar, for example, has 48.2 billion barrels of oil left, which would last another 34 years at the maximum rate of production. Nonetheless, companies are often able to boost the reserves over time by deploying new techniques or technology.
In total, the kingdom has 226 billion barrels of reserves, enough for another 52 years of production at the maximum capacity of 12 million barrels a day.
In his book “Twilight in the Desert,” Simmons argued that Saudi Arabia would struggle to boost production due to the imminent depletion of Ghawar, among other factors. “Field-by-field production reports disappeared behind a wall of secrecy over two decades ago,” he wrote in his book in reference to Aramco’s nationalization. The new details about Ghawar prove one of Simmons’s points but he missed other changes in technology that allowed Saudi Arabia -- and, more importantly, U.S. shale producers -- to boost output significantly, with global oil production yet to peak.
The Saudis also told the world that their fields are aging better than expected, with “low depletion rates of 1 percent to 2 percent per year,” slower than the 5 percent decline some analysts suspected.
Yet, it also said that some of its reserves -- about a fifth of the total -- had been drilled so systematically over nearly a century that more than 40 percent of their oil has been already extracted, a considerable figure for an industry that usually struggles to recover more than half the barrels in place underground.
On top of Ghawar, which was found in 1948 by an American geologist, Saudi Arabia relies heavily on two other mega-fields: Khurais, which was discovered in 1957, and can pump 1.45 million barrels a day, and Safaniyah, found in 1951 and still today the world’s largest offshore oil field with capacity of 1.3 million barrels a day. In total, Aramco operates 101 oil fields.