Volume 40 Issue 4
Jul.  2023
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ZHANG Hongwei, HUANG Guoqiang, WU Hongling, et al.Study and application of a graphene lugging agent for water based drilling fluids[J]. Drilling Fluid & Completion Fluid，2023, 40（4）：462-466 doi: 10.12358/j.issn.1001-5620.2023.04.007
Citation: ZHANG Hongwei, HUANG Guoqiang, WU Hongling, et al.Study and application of a graphene lugging agent for water based drilling fluids[J]. Drilling Fluid & Completion Fluid，2023, 40（4）：462-466 doi: 10.12358/j.issn.1001-5620.2023.04.007
shu

Study and Application of a Graphene Lugging Agent for Water Based Drilling Fluids

doi: 10.12358/j.issn.1001-5620.2023.04.007
  • 1.

    Research Institute of Engineering Technology, BHDC, Tianjin 300450

  • 2.

    Bayannur Exploration & Development Company, Huabei Oilfield Company, Bayannur, Inner Mongolia 015000

  • 3.

    College of Chemical engineering and Environment, Petroleum University of China, Beijing 102249

  • Received Date: 2023-01-06
  • Rev Recd Date: 2023-02-24
  • Publish Date: 2023-07-30
    Abstract
  • Fast plugging of microfractures and micropores in the hard brittle shales and deep buried sandstone/mudstone interbeds is one of the challenges that needs to be dealt with in solving borehole wall collapse in drilling the shale formation and reservoir damage. Graphene materials, because of their excellent properties such as nanometer sizes and layered membrane structures, can be used to solve these downhole problems at low concentrations and with high efficiency. A graphene slurry with good stability is prepared in laboratory with graphite using rolling lift-off technique. Evaluation of the performance of the graphene slurry shows that the D50 of the graphene particles is ±5 μm. The graphene slurry has good filtration control property and shale swelling inhibitive capacity. PPA test results show that the graphene slurry is able to effectively seal off the micropores on the sand plate. The application of the graphene slurry on two wells shows that it has good compatibility with the water based drilling fluids used and improves the plugging efficiency of the drilling fluids. Using this graphene slurry, the borehole wall collapse problem previously encountered is successfully solved.

     

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