Note that in every horizon, the pool size class of 0. However, it is also instructive to note that 11 of the 14 largest pools occur in the Paleozoic. The very low average gas pool sizes for the Viking and Mannville are the result of the extremely large numbers of gas pools in these two horizons, more than twice as many as all other 11 intervals combined. The average gas pool size would be expected to increase if the total number of pools in these two intervals dropped.
Note also that 52 of the 92 largest gas pools occur in the Carboniferous and Devonian, a more equitable distribution of largest pools than is evident for largest oil pools. There are three major oil sands areas, all in Alberta, with reserves that dwarf those of the conventional oil fields. These three areas, namely the Athabasca, Cold Lake and Peace River oil sands areas, contain initial oil-in-place reserves of x 10 6 m 3 , compared to the 11 x 10 6 m 3 initial established in-place volumes in conventional oil fields.
The major oil sands areas are outlined on the maps in the relevant Atlas chapters. A major contribution of data and resources was provided by Digitech Information Services Ltd. Lee of the Geological Survey of Canada aided greatly by providing numerous printouts of reserves and production data. Ken Drummond reviewed this chapter and his suggested improvements are much appreciated. Chapter 32 - Oil and Gas Resources. Hay - lithomaps Ltd. Methodology The first step in identification of producing wells was to request a printout from Digitech listing all producing oil or gas wells for each of 17 major stratigraphic zones.
Retrieval Specifications Stratigraphy Minor problems were encountered in assigning production from some stratigraphic intervals because of the broad stratigraphic range of the producing formation. Solution Gas In a few major gas fields, production is primarily derived from solution gas associated with major oil production. Retun to top Summary of Reserves and Production Data Cumulative production totals for oil and gas, by stratigraphic interval, are shown as tables accompanying the field outline maps in each of the 13 relevant Atlas chapters.
Retun to top Acknowledgements A major contribution of data and resources was provided by Digitech Information Services Ltd. Hydrocarbon and by-product reserves in British Columbia Energy Resources Division, Dec. Energy Resources Conservation Board. Alberta's reserves of crude oil, gas, natural gas liquids and sulphur. Crude bitumen reserves atlas. The exploration and resource evaluation system: Geological Survey of Canada, Unpublished report.
Manitoba Energy and Mines, Petroleum, Manitoba oil activity review Saskatchewan Energy and Mines, Saskatchewan reservoir annual Current recovery factors for oil fields around the world typically range between 10 and 60 percent; some are over 80 percent. The wide variance is due largely to the diversity of fluid and reservoir characteristics for different deposits.
The materials balance method for an oil field uses an equation that relates the volume of oil, water and gas that has been produced from a reservoir and the change in reservoir pressure to calculate the remaining oil.
It assumes that, as fluids from the reservoir are produced, there will be a change in the reservoir pressure that depends on the remaining volume of oil and gas. The method requires extensive pressure-volume-temperature analysis and an accurate pressure history of the field. The decline curve method uses production data to fit a decline curve and estimate future oil production.
The three most common forms of decline curves are exponential, hyperbolic, and harmonic. It is assumed that the production will decline on a reasonably smooth curve, and so allowances must be made for wells shut in and production restrictions. The curve can be expressed mathematically or plotted on a graph to estimate future production. It has the advantage of implicitly including all reservoir characteristics. It requires a sufficient history to establish a statistically significant trend, ideally when production is not curtailed by regulatory or other artificial conditions.
Experience shows that initial estimates of the size of newly discovered oil fields are usually too low. As years pass, successive estimates of the ultimate recovery of fields tend to increase. The term reserve growth refers to the typical increases in estimated ultimate recovery that occur as oil fields are developed and produced.
It is estimated that between and billion tonnes which equals between and billions m 3 of oil of the world's oil reserves have been used between and the present. Since OPEC started to set production quotas on the basis of reserves levels in the s, many of its members have reported significant increases in their official reserves. The sudden revisions in OPEC reserves, totaling nearly bn barrels, have been much debated. In any event, the revisions in official data had little to do with the actual discovery of new reserves.
Total reserves in many OPEC countries hardly changed in the s. Ali Samsam Bakhtiari , a former senior expert of the National Iranian Oil Company , has estimated that Iran, Iraq, Kuwait, Saudi Arabia and the United Arab Emirates have overstated reserves by a combined —bn barrels and has said, "As for Iran, the usually accepted official billion barrels 2. The combined value of proven and possible is half of the official public estimate of proven reserves. Of the estimated totals, more than half of the undiscovered oil resources were estimated to occur in just three geologic provinces— Arctic Alaska , the Amerasia Basin , and the East Greenland Rift Basins.
The USGS did not consider economic factors such as the effects of permanent sea ice or oceanic water depth in its assessment of undiscovered oil and gas resources. This assessment was lower than a survey, which had included lands south of the Arctic Circle. In June the U. Energy Information Administration published a global inventory of estimated recoverable tight oil and tight gas resources in shale formations, "Technically Recoverable Shale Oil and Shale Gas Resources: Estimated technically recoverable shale oil resources total to billion barrels.
From Wikipedia, the free encyclopedia. Extraction of petroleum and Oil in place. The neutrality of this section is disputed. Relevant discussion may be found on the talk page.
Please do not remove this message until conditions to do so are met. May Learn how and when to remove this template message. This section may require cleanup to meet Wikipedia's quality standards. The specific problem is: The table in this section presently presents resources rather than reserves , according to SPE definition Please help improve this section if you can. February Learn how and when to remove this template message. Historical tables summarize data on production, trade and final consumption.
The book includes definitions of products and flows and explanatory notes on the individual country data. Based on Publisher's Description. Addressing Climate Change Database http: Independent Petroleum Association of America. Additional statistical sources for conducting research in the areas of oil and gas production, pricing, and consumption may be identified by searching the Online Catalog under appropriate Library of Congress subject headings. Choose the topics you wish to search from the following list to link directly to the Catalog and automatically execute a search for the subject selected.
- The Riches Beneath our Feet: How Mining Shaped Britain.
- Oil Almanacs : OpenOil.
- Rojo Goes To Camp.
- Oil reserves!
- Chapter 32 - Oil and Gas Resources;
- The Witches Of Snow Hollow.
- Uncensored Truth: A No-Spin Guide to the Christian Faith.
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imagine an open oil industry...
For assistance in locating other subject headings which may relate to this subject, please consult a reference librarian. Photograph of drilling rig near Sable Island. This report provides international production and consumption data, and import and export statistics. The data is organized according to geographic region.
Production, transmission, storage, deliveries, and price data are published by State. Historical versions on the EIA website begin in This report is updated during the first week of each month. Information includes worldwide data on refinery reports and capacities, crude and product stocks, rig counts, crude oil and gas processing, forecasts and reviews, and reports on petrochemicals, gas processing, pipeline economics, refining, production, drilling and more.
This practical textbook contains toolbox of models, along with institutional, technological, and historical information on oil, coal, gas, and electricity including Renewables. The pricing history covers over products including aromatics, olefins and their derivatives, crude oil, gasoline, naphtha, methanol, and MTBE for the United States, Western Europe, and the Far East. The objective of the HPP is to provide value to companies in determining pricing trends, relationships and performances in the international petrochemical industry.
Chapter 32 - Oil and Gas Resources
The publication has been developed to provide convenient access, in one source, the essential energy price statistics needed for analysis of the U. This resources is good for historical research. The report presents statistics and analysis by geographic region. For many series, data begin with the year Included are data on total energy production, consumption, and trade; overviews of petroleum, natural gas, coal, electricity, nuclear energy, renewable energy, as well as financial and environmental indicators; and data unit conversion tables.