10.14489/td.2014.011.pp.038-044

2014, 11 November

DOI: 10.14489/td.2014.011.pp.038-044

Golodnykh E.V., Borikov V.N.
SIMULATION OF GAMMA-RADIATION DISTRIBUTION IN ROCKS FOR DETERMINING THE REGISTRATION CHARACTERISTICS OF MEASUREMENT UNIT OF HORIZONTAL BOREHOLE POSITION CONTROL SYSTEM
(pp. 38-44)

Abstract. The article describes the theoretical aspects of gamma-radiation distribution in the rock. Information on the values of natural gamma radiation of rocks provides control of the drilling tool orientation relative to top and bottom of the reservoir in the horizontal drilling process. Simulation of gamma-radiation distribution in the rock on the example of Western Siberia fields was made in the interactive environment COMSOL Multiphysics. The test results of the two-probe device model for horizontal borehole position control were presented. The maximum distance of registration changes for the natural gamma radiation of rocks was defined. Attenuation coefficient of natural gamma-radiation of rocks, introduced by the influence of non-magnetic drill collar, was calculated. Practical advice for improvement of characteristics registration of the prototype device are given.

Keywords: gamma-ray, horizontal drilling, detector, scintillator, photomultiplier tube.

+ - About the Authors Click to collapse

E. V. Golodnykh, V. N. Borikov
Tomsk Polytechnic University, Institute of Non-Destructive Testing, Tomsk, Russia. E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. Golodnykh E. V., Borikov V. N., Fedulov A. V. (2013). Device for controlling the position of the barrel horizontal well. Ru Patent No. 2490448. Russian Federation.
2. Mengesha W., Aalseth C. E., Barnett D. S. et al. (2004). Pulse “shape analysis for electron mobility study in cadmium zinc telluride gamma-ray detectors”. IEEE Trans. on Nucl. Sci., 51, pp. 1166-1171. doi: 10.1109/TNS.2004.829650.
3. Kozhevnikov D. A., Kalmykov G. A. (1997). Metrological characteristics of a natural spectral gamma ray logging system. IEEE Transactions on Nuclear Science, 44(2), pp. 148-152.
4. Golodnykh E. V., Borikov V. N. (2013). Measuring unit development for the device of horizontal borehole position control. Kontrol'. Diagnostika, (9), pp. 51-57.
5. Golodnykh E. V. (2013). Overview of gamma-ray detec-tors for controlling the position of the barrel horizontal well. Vestnik nauki Sibiri, (1), pp. 129-138.

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