**Graphical Comparison of Reserve-Growth Models for Conventional Oil and Gas Accumulations**

 

*By***T.R. Klett**

 

**Version 1.0**
Past and currently proposed reserve-growth models are compared to aid in the  selection of a suitable algorithm for use in the ongoing National Oil and Gas  Assessment Project. The reserve-growth models use past annual volumetric changes  of fields and reservoirs that have been grouped by age.
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Digital tabular data used in this report are available as separate files.  Computers and software may use the data without transcription from the Portable  Document Format (.pdf) of the text. Because of the number and variety of platforms  and software available, the data are provided in a raw form as tab-delimited  text files (.tab files), usable by most spreadsheet and database programs.The file names correspond to each of the 16 tables-for example, table1.tab.
**Table 1**Download .tab file (11 KB) 
Discovery table showing recoverable oil in oil fields based on the Energy Information Administration (1977 through 1996) dataset.
**Table 2**Download .tab file (11 KB) 
Discovery table showing recoverable gas in gas fields based        on the Energy Information Administration (1977 through 1996) dataset.
**Table 3**Download .tab file (10 KB) 
Discovery table showing recoverable oil in oil fields based        on the NRG Associates Fields (1982 through 1998) dataset. 
**Table 4**Download .tab file (10 KB) 
Discovery table showing recoverable gas in gas fields based        on the NRG Associates Fields (1982 through 1998) dataset. 
**Table 5**Download .tab file (10 KB) 
Discovery table showing recoverable oil in oil reservoirs        based on the NRG Associates Reservoirs (1982 through 1998) dataset.
**Table 6**Download .tab file (10 KB) 
Discovery table showing recoverable gas in gas reservoirs        based on the NRG Associates Reservoirs (1982 through 1998) dataset.
**Table 7**Download .tab file (8 KB) 
Growth factors from the Arrington Model - 1996 (Arrington,        1960).
**Table 8**Download .tab file (8 KB) 
Growth factors from the Mean of U.S. Lower 48 Annual Growth        Factors - 1996 model.
**Table 9**Download .tab file (5 KB) 
Growth factors from the MMS Federal Offshore - 1996 model        (Lore and others, 1996).
**Table 10**Download .tab file (8 KB) 
Growth factors from the NRG U.S. Lower 48 Fields Monotone        - 1998 model (E.D. Attanasi, written commun., 2001).
**Table 11**Download .tab file (8 KB) 
Growth factors from the NRG U.S. Lower 48 Reservoirs Monotone        - 1998 model (E.D. Attanasi, written commun., 2001).
**Table 12**Download .tab file (5 KB) 
Growth factors from the U.S. Lower 48 Mean - 1991 model (Schmoker        and Klett, 2000).
**Table 13**Download .tab file (8 KB) 
Growth factors from the U.S. Lower 48 Monotone - 1991 model        (Root and others, 1997).
**Table 14**Download .tab file (8 KB) 
Growth factors from the U.S. Lower 48 Monotone - 1996 model        (E.D. Attanasi, written commun., 2001).
**Table 15**Download .tab file (12 KB) 
Recoverable oil and natural gas volumes by age and type in        conventional fields and reservoirs of the Lower 48 United States, located        onshore and in State waters, as reported in the Energy Information Administration        (1996) and NRG Associates (1998) databases.
**Table 16**Download .tab file (1 KB) 
Estimated additions to U.S. reserves using forecast functions        derived from the various reserve-growth models for conventional fields located        onshore and in State waters of the Lower 48 United States.
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U.S. Department of the Interior | U.S. Geological Survey      URL: https://pubsdata.usgs.gov/pubs/bul/b2172-f/Questions or Assistance: USGS Web ContactPage Last Modified: Wed Nov 23 11:20 EDT 2016