Chevron begins injecting steam in PNZ pilot

By OGJ editors
HOUSTON, June 29
-- Saudi Arabian Chevron initiated steam injection in its large-scale pilot steamflood project at Wafra field, an Eocene heavy-oil carbonate reservoir in the Partitioned Neutral Zone (PNZ) between Kuwait and Saudi Arabia.

Chevron said the $340 million pilot is the final test phase for steamflooding the reservoir, and it expects the pilot to lead to full-field steamflooding, which would make the project the world's first commercial conventional steamflood in a carbonate reservoir.

“Full-field deployment of steamflood technology in the PNZ would significantly increase recovery of crude oil reserves, confirm the technology’s potential applicability in other carbonate oil fields and build on Chevron’s steamflood capabilities that date back 5 decades,” said George Kirkland, executive vice-president, Chevron Global Upstream & Gas.

The large-scale pilot is the third in a series of staged tests for validating the feasibility of steamflooding at Wafra. Previous tests included the small-scale test completed in 2008 and simple steam stimulation in the late 1990s.

Steamflooding involves injecting steam into heavy-oil reservoirs to heat the crude oil underground, reducing its viscosity and allowing its extraction through wells. Chevron has employed steamflooding to produce heavy oil from sandstone reservoirs at Kern River, Calif. for more than 40 years and at Duri in Sumatra, Indonesia, for 25 years.

Saudi Arabian Chevron operates on behalf of Saudi Arabia that has a 50% interest in the onshore PNZ petroleum resources. Saudi recently amended and extended Chevron's operating agreement until February 2039.

The company's operations in the PNZ include four fields: Wafra, South Umm Gudair, South Fuwaris, and Humma. The fields produce mainly heavy crude from 10 reservoirs. In 2004, onshore PNZ produced its 3 billionth bbl of oil, according to Chevron.

Related Articles

Chevron to increase production, maintain capex level through 2017

03/13/2014 Chevron Corp. will increase production by 20% through 2017 without raising capital expenditures, executives said Mar. 11 at the company's annual se...

IHS CERAWeek: Oil executives cite rising business costs

03/04/2014 Demand for all types of energy continues to increase as oil and gas companies adapt to handle the ever-rising costs of finding and producing hydroc...

Chevron gets approval for Alder field, reaches FID

01/20/2014 Chevron Corp. UK subsidiary Chevron North Sea Ltd. has reached a final investment decision (FID) and received approval from the UK government to pr...

Feds call for revamp in safety regulation at US refineries

12/23/2013 The US Chemical Safety Board (CSB) has proposed a more-rigorous safety management regulatory framework for refineries in California that could exte...

Careers at TOTAL

Careers at TOTAL - Videos

More than 600 job openings are now online, watch videos and learn more!

 

Click Here to Watch

Other Oil & Gas Industry Jobs

Search More Job Listings >>
Stay Connected