A simple tool to assess the cost-effectiveness of new bit technology

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Description

Cost or performance targets for new bit technologies can be established with the aid of a drilling cost model. In this paper the authors make simplifying assumptions in a detailed drilling cost model that reduce the comparison of two technologies to a linear function of relative cost and performance parameters. This simple model, or analysis tool, is not intended to provide absolute well cost but is intended to compare the relative costs of different methods or technologies to accomplish the same drilling task. Comparing the simplified model to the detailed well cost model shows that the simple linear cost model ... continued below

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7 p.

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Bomber, T.M.; Pierce, K.G. & Livesay, B.J. July 1, 1998.

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This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this article can be viewed below.

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  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM (United States)
    Place of Publication: Albuquerque, New Mexico

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Description

Cost or performance targets for new bit technologies can be established with the aid of a drilling cost model. In this paper the authors make simplifying assumptions in a detailed drilling cost model that reduce the comparison of two technologies to a linear function of relative cost and performance parameters. This simple model, or analysis tool, is not intended to provide absolute well cost but is intended to compare the relative costs of different methods or technologies to accomplish the same drilling task. Comparing the simplified model to the detailed well cost model shows that the simple linear cost model provides a very efficient tool for screening certain new drilling methods, techniques, and technologies based on economic value. This tool can be used to divide the space defined by the set of parameters: bit cost, bit life, rate of penetration, and operational cost into two areas with a linear boundary. The set of all the operating points in one area will result in an economic advantage in drilling the well with the new technology, while any set of operating points in the other area indicates that any economic advantage is either questionable or does not exist. In addition, examining the model results can develop insights into the economics associated with bit performance, life, and cost. This paper includes development of the model, examples of employing the model to develop should cost or should perform goals for new bit technologies, a discussion of the economic insights in terms of bit cost and performance, and an illustration of the consequences when the basic assumptions are violated.

Physical Description

7 p.

Notes

OSTI as DE98002965

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  • Geothermal Resources Council annual meeting, San Diego, CA (United States), 20-23 Sep 1998

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  • Other: DE98002965
  • Report No.: SAND--98-1537C
  • Report No.: CONF-980917--
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 656530
  • Archival Resource Key: ark:/67531/metadc702052

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  • July 1, 1998

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 14, 2016, 12:41 p.m.

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Bomber, T.M.; Pierce, K.G. & Livesay, B.J. A simple tool to assess the cost-effectiveness of new bit technology, article, July 1, 1998; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc702052/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.