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Showing posts with label Production Engineering. Show all posts
Showing posts with label Production Engineering. Show all posts

Thursday, July 17, 2008

Technology, markets to drive rise in Canadian oil sands production

CALGARY, July 16 -- Production of Canadian oil sands bitumen will continue to rise in the coming decades but not without advances in processing technologies and the adoption by producers of varied strategies to market the resulting heavy crude blends.

These were some of the issues raised by speakers July 15 during the opening session of the second annual Oil Sands & Heavy Oil Technologies Conference & Exhibition in Calgary. The inaugural 2-day conference, held in July 2007, also in Calgary, drew more than 880 oil sands executives and senior personnel and more than 50 exhibitors.

Tension was palpable at the opening session regarding one topic in particular: growing concerns in Canada about finicky talk in the US concerning the type of oil it allows to cross its borders. Yet to be discussed fully by conference delegates, it likely will serve as this year's 900-lb gorilla in the middle of the industry's living room.

The hot-button topic has its impetus in a resolution the US Conference of Mayors adopted last month that is modeled on a section in last year's Energy Independence and Security Act, which raised alarm about the potential environmental drawbacks of oil sands. The resolution calls for bans on purchases, for use in city vehicles, of any fuel with life-cycle emissions of greenhouse gases deemed excessive (OGJ, July 7, 2008, p. 21). Canadian oil sands producers' concerns hinge largely on such a resolution's gaining serious political steam during an already strongly polarized presidential election in the US.

Oil vs. 'dirty oil'
In a presentation that compared and contrasted conventional oil with oil sands and other heavy oil resources, Jim Hyne of Hyjay Research & Development stressed the need for different operational infrastructure for the two types of oil.

Hyne said the increased complexity of steps needed to extract and process oil sands sets the resource too far apart from conventional resources to fit old protocols. Differences include the number of steps, the amount of manpower, and the large capital resources required to extract and process oil sands. Transporting the finished products also is more complex for oil sands, and the environmental and social impact of its development is far greater than conventional resources, Hyne noted.

Regarding the changes and advancements needed to continue to process oil sands and heavy oil, Hyne said, "There are too many people in the business we are in who are still thinking 'inside the box.'" According to Hyne, there are vast new and different protocols that can be implemented that better meet the needs of responsible, profitable, and sustainable energy production from the oil sands.

Hyne pointed out that the features of the new and different operational infrastructure for oil sands include the amounts and toxicity of their emissions, getting the resource to the surfaceand moving it once therehow and where to upgrade the resource, the certainty of the reserves, and fighting the image of "dirty oil."

Markets meet technology
Thomas Wise, vice-president of engineering consulting firm Purvin & Gertz, an engineering consulting firm with offices in Calgary, discussed the evolving oil sands and synthetic crude oil markets. He said oil sands production growth is expected to offset declines in conventional oil production, although recent project delays have reduced original production forecasts.

Wise said bitumen blends coming from Canada have been oversupplied in US Midwest markets, resulting in price discounts. New refinery coking projects should improve the balance, Wise noted.

Wise noted that the supply of light, sweet synthetic crude oil (SCO), without bottoms, continues to rise, but that the demand is limited to a minority of refineries without coking or asphalt production. Therefore, SCO price discounting can be expected. Also, refineries need more hydrocracking, and technology to reduce vacuum gas oil and leave some low-sulfur resid could enhance the marketability of SCO.

Wise said environmental issues will continue to impact the oil sands markets, adding that because greenhouse gas issues are so politically charged, clear government policies are needed. It is lack of this clarity that has delayed a number of upgrading projects, he said.

The value of oil sands
Robert Fryklund, vice-president of global exploration and production critical analysis for IHS, discussed the oil sands from the perspective of business developers. More than 1 trillion bbl of oil has already been produced from the oil sands, Fryklund said, and more than 1.7 trillion bbl of resources remain to be developed.

Sources for oil sands exist outside Canada as well, he said, noting projects in Iraq, Colombia, and Peru.

Fryklund noted that the oil sands landscape continues to change, even from a year ago. New entrants into the oil sands development projects include foreign companies such as Norway's StatoilHydro as well as additional Canadian domestic groups. Missing from the mix are certain European majors and US operators such as Hess Corp., Anadarko Petroleum Corp., and Apache Corp. Also, Petrobras, Petronas, and Pertamina have yet to enter.

Leasing activity has been on the rise, as has the number of merger and acquisition transactions, Fryklund noted. Capital cost creep, however, has begun to wear away at the number of players in the oil sands. With projects costing an average of $10 billion due to come on line in the next 5 years, it is not uncommon to discuss projects having a final price tag as high as $20 billion.

Fryklund still expects growth in oil sands development, although this growth will flatten out. He expects further consolidation within industry as well as a new wave of technology and innovation.

Contact the editor of this article Steven Poruban at stevenp@pennwell.com.

Tuesday, July 15, 2008

Artificial Lift Oil Well

This video is shows the typical artificial lift mechanism of an oil well.

video

Sunday, July 13, 2008

Enhanced Recovery by Siesmic waves 2

Here is another video explaining the phenomena of seismic stimulation in more detail.

Saturday, July 12, 2008

Enhanced Recovery by Siesmic waves 1

There are several methods to increase the recovery of oil. The following video show how the recovery of oil can be enhanced through seismic stimulation of the reservoir.This technique can increase oil production by 15-20%. It is low cost yet effective over large distances.



Friday, July 11, 2008

Secondary recovery by Gas lift

This is a video animation of a gas lift system from Weatherford. The gas (shown in red) enters the tubing through the SPM (side pocket mandrel) via a gas valve. The high pressure gas drives out the fluid in green (either water or lighter oil) reducing the hydrostatic head over the heavy oil in the reservoir. This sucks the heavy oil out of the reservoir and it enters the tubing through the perforations.


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