Home > Archive>Volume 50, Issue S1, 2023 >351-357. DOI:10.12143/j.ztgc.XXXX.XX.001
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Drilling and completion technology of No.2 Well of deep potash scientific drilling in Lop Nur salt lake
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The Second Geological Team of Hebei Coal Field Geology Bureau (Hebei Province Dry Hot Rock Research Center), Xingtai Hebei 054001, China

Clc Number:

P634

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    Abstract:

    Lop Nur salt lake deep potash scientific drilling Well 2 （LDK02） has a completion depth of 1200m， which is the first deep potash parameter well in Lop Nur salt lake district. The successful application of loose layer coring， high salinity brine drilling fluid， and closed depth sampling technology has solved malignant wellbore accidents such as easy shrinkage and sticking of drilling in gravel and sand layer coring， unstable block falling and collapse of drilling fluid salt immersion wellbore. The same diameter sealing process simplifies the drilling structure； The fixed depth sampling technology maintains the relative stability of the original components of the water sample， laying the foundation for studying the distribution and spatiotemporal evolution of potassium rich brine at different depths in this area.

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History
  • Received:November 04,2022
  • Revised:February 15,2023
  • Adopted:February 16,2023
  • Online: October 21,2023
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