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Abstract

Summary

Logging-while-drilling (LWD) is the most advanced technology in geophysical well logging and it is widely used for determining the petrophysical parameters of oil-and-gas reservoirs in boreholes.

The LWD is particularly important for horizontal boreholes. The latter allows: to multiply the yield of hydrocarbons, to increase overall production, to use effectively new vertical boreholes and exploited ones. The opportunity of horizontal drilling to local deposits is of also essential importance.

This abstract concentrates on the apparatus developments, which are aimed at creating the new module of radioactivity logging for LWD; the module is universal in the sense that it can be used in drill collars, which are employed while drilling all types of boreholes. The developed module implements neutron-neutron logging, neutron-gamma logging, gamma-gamma logging, and gamma-ray logging. It allows to perform determination of a broad set of petrophysical parameters.

As an example of using the new module, the results of determining the petrophysical parameters of oil reservoir in horizontal borehole are given. The process of LWD measurements demonstrated high technologicness and efficiency of the module. Comparison of the obtained parameters with the data of independent measurements using the PEX tool (Schlumberger) showed a qualitative consistency and a quantitative convergence.

EAGE Publications BV © 2023 The Authors © European Association of Geoscientists and Engineers
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/content/papers/10.3997/2214-4609.2023520173
2023-11-07
2025-05-16

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References

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/content/papers/10.3997/2214-4609.2023520173
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Universal Apparatus Module of Radioactivity Logging for LWD
Conference Proceedings 2023, 1 (2023); https://doi.org/10.3997/2214-4609.2023520173
/content/papers/10.3997/2214-4609.2023520173
/content/papers/10.3997/2214-4609.2023520173
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