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Home > Archive>Volume 52, Issue 2, 2025 >45-50. DOI:10.12143/j.ztgc.2025.02.006
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Research and application of harmless treatment technology for waste non-solid phase drilling fluid
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Affiliation:

1.Beijing Institute of Exploration Engineering, Beijing 100083, China;2.Technology Innovation Center of Green Drilling, China Geological Survey, Beijing 100083, China;3.Research Institute No.290, CNNC, Shaoguan Guangdong 512000, China;4.Yantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai Shandong 264004, China

Clc Number:

P634;X74

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    Abstract:

    The waste drilling fluid generated by drilling engineering can cause a series of impacts on the ecological environment， and it is required the comprehensive implementation of green exploration in the new round of strategic actions for mineral exploration breakthroughs， stricter requirements on the treatment technology of waste drilling fluid is posed. This article combines field research and laboratory experiments to analyze the pollution characteristics of the waste drilling fluid used at the Tengjia Gold Mine in Zhaoyuan， Shandong. Laboratory experiments are conducted to study the harmless treatment technologies for waste drilling fluid. The preferred agents of GPJ-1 （a gel breaker）， GXN-1 （a flocculant）， and GAC （a decolorizer） are optimized and processing by gel breaking， flocculation， adsorption， and decolorization treatment， followed by solid-liquid separation using centrifuges or filter presses， the solid phase is then treated with solidification. The experimental results show that after treatment， the pollution indicators of the waste drilling fluid have significantly decreased， meeting the secondary standards for comprehensive sewage discharge. The formulation “2% GPJ-1+0.5% GXN-1+1% GAC” was used to harmlessly treat the waste non-solid phase drilling fluid on the drilling site of Zhuguang project in Shaoguan， Guangdong， confirming the feasibility of harmless treatment technology.

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History
  • Received:December 27,2024
  • Revised:February 13,2025
  • Adopted:February 14,2025
  • Online: March 25,2025
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