To accomplish this objectiv e, we reviewed published assessments of coal, conventional and unconventional resources and established the quantitative relations hip between unconven tional gas (coalbed methane, tight sands gas, and shale gas) and the conventional hy drocarbon (coal, conventional gas and oil) resource endowments for North America.
Latest Bgr Nt Maps For Sygic 17.7.2 Download Citation CopyAyers Texas AM University Download full-text PDF Read full-text Download full-text PDF Read full-text Download citation Copy link Link copied Read full-text Download citation Copy link Link copied Citations (7) References (31) Figures (12) Abstract and Figures Most estimates of the resource endowment (original gas in place) reported for world unconventional gas start with Rogners 1997 top-down study.![]()
Furthermore, the uncertainty of Rogners assessment was not quantified. Thus, a new assessment of original unconventional gas in place worldwide with considering the uncertainty is needed. The objective of this project was to estimate the probabilistic distributions of original volumes of gas trapped in coalbed, tight sand and shale reservoirs, worldwide. To accomplish this objective, we reviewed published assessments of coal, conventional and unconventional resources and established the quantitative relationship between unconventional gas (coalbed methane, tight sands gas, and shale gas) and the conventional hydrocarbon (coal, conventional gas and oil) resource endowments for North America. Then, we used this relationship to extrapolate original unconventional gas in place, worldwide. Our assessment of the world resource endowment established an unconventional OGIP of 83,400 Tcf (P90)-184,200 Tcf (P10), which is 2.6-5.7 times greater than Rogners estimate of 32,600 Tcf. Our regional assessments of unconventional OGIP should help industry better target its efforts to rapidly accelerate the development of unconventional gas resources worldwide. The methodology used to assess the distribution of each type of unconventional OGIP may be used to estimate unconventional gas resources at the country or basin level, knowing the coal in place and technically recoverable resources of conventional hydrocarbons. Latest Bgr Nt Maps For Sygic 17.7.2 For Free Public FullDiscover the worlds research 20 million members 135 million publications 700k research projects Join for free Public Full-text 1 Content uploaded by Zhenzhen Dong Author content All content in this area was uploaded by Zhenzhen Dong on Dec 29, 2018 Content may be subject to copyright. Dong, SPE, S.A. Holditch, SPE, D.A. McVay, SPE, W.B. Ayers, SPE, Texas AM University Copyright 2011, Society of Petroleum Engineers This paper was prepared for presentation at the Canadian Unc onventional Resources Conference held in Calgary, Alberta, Canada, 1517 November 2011. This paper was selected for presentation by a CSUGSPE program committee foll owing review of information contained in an abstra ct submitted by the author(s). Contents of the paper have not been reviewed by the Society of Petroleum Engineers a nd are subject to correction by the author(s ). The material does not necessa ril y reflect any position of the Society of Petrol eum Engineers, its officers, or members. Electronic reproduction, distri bution, or storage of any part of this pap er without the written consent of the Soci ety of Petroleum Engineers is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustra tions may not be copied. The abstr act must contain conspicuous ac knowl edgment of SPE copyright. Abstract Most estimates of the resource endowment (original gas in place) reporte d for world unconventi onal gas start with Rogners 1997 top-down study. The data from these new reservoirs add su bstantially to our understandi ng of the unconventional resource base. Furthermore, the uncertainty of Ro gners assessment was not quantified. Thus, a new assessment of original unconventional gas in place worldw ide with considering the uncertainty is needed.
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