Review on innovative techniques for solution mining with intersected well sets at Kazan Trona Mine in Turkey
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Institute of Exploration Techniques, CAGS, Langfang Hebei 065000, China

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P634.7;TD87

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    Abstract:

    Solution mining of Kazan Trona Mine in Turky is realized by the intersected well set, which is formed by drilling of one horizontal well to intersect one or more vertical wells with help of the high accuracy targethitting guidance system. On the basis of the previous longterm experience, the existing drilling techniques and geological characteristics of the mine, a series of innovative drilling techniques have been developed for the purpose of better exploiting the mine, including the strataspecific drilling techniques, the 3D geological model for the mine, the design and application of intersected wells with horizontal branches, the optimization of the horizontal well trajectory design, the setting up of the standard geophysical logging response curves for the ore and nonore ledges, the deviation control methods based on the study on the formation deflecting mechanism, proper combination of various BHAs, the technique to improve control of the horizontal drilling trajectory, etc. A lot of benefits have been achieved by the application of these techniques, such as the improvement of the planned productivity of the mine, reduced well construction cost, enhanced recovery of the trona resources, decreased construction period, raised drilling efficiency, and minimum impact on environment. The innovative techniques can be referred as a guide for the planning of trona or other soluble mines, and for the construction of intersected well sets.

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History
  • Received:May 19,2020
  • Revised:July 14,2020
  • Adopted:July 10,2020
  • Online: August 19,2020
  • Published:
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