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Polyethylene Glycol Drilling Fluid for Drilling in Marine Gas Hydrates-Bearing Sediments: An Experimental Study

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Listed:
  • Guosheng Jiang

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Tianle Liu

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Fulong Ning

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Yunzhong Tu

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Ling Zhang

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Yibing Yu

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

  • Lixin Kuang

    (Faculty of Engineering, China University of Geosciences, Wuhan, 430074, China)

Abstract

Shale inhibition, low-temperature performance, the ability to prevent calcium and magnesium-ion pollution, and hydrate inhibition of polyethylene glycol drilling fluid were each tested with conventional drilling-fluid test equipment and an experimental gas-hydrate integrated simulation system developed by our laboratory. The results of these tests show that drilling fluid with a formulation of artificial seawater, 3% bentonite, 0.3% Na 2 CO 3 , 10% polyethylene glycol, 20% NaCl, 4% SMP-2, 1% LV-PAC, 0.5% NaOH and 1% PVP K-90 performs well in shale swelling and gas hydrate inhibition. It also shows satisfactory rheological properties and lubrication at temperature ranges from −8 °C to 15 °C. The PVP K-90, a kinetic hydrate inhibitor, can effectively inhibit gas hydrate aggregations at a dose of 1 wt%. This finding demonstrates that a drilling fluid with a high addition of NaCl and a low addition of PVP K-90 is suitable for drilling in natural marine gas-hydrate-bearing sediments.

Suggested Citation

  • Guosheng Jiang & Tianle Liu & Fulong Ning & Yunzhong Tu & Ling Zhang & Yibing Yu & Lixin Kuang, 2011. "Polyethylene Glycol Drilling Fluid for Drilling in Marine Gas Hydrates-Bearing Sediments: An Experimental Study," Energies, MDPI, vol. 4(1), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:4:y:2011:i:1:p:140-150:d:11023
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    References listed on IDEAS

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    1. Fulong Ning & Nengyou Wu & Guosheng Jiang & Ling Zhang & Jin’an Guan & Yibing Yu & Fenglin Tang, 2010. "A Method to Use Solar Energy for the Production of Gas from Marine Hydrate-Bearing Sediments: A Case Study on the Shenhu Area," Energies, MDPI, vol. 3(12), pages 1-19, December.
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    Cited by:

    1. Ren Wang & Huicui Sun & Xiaomei Shi & Xianguang Xu & Ling Zhang & Zhilei Zhang, 2019. "Fundamental Investigation of the Effects of Modified Starch, Carboxymethylcellulose Sodium, and Xanthan Gum on Hydrate Formation under Different Driving Forces," Energies, MDPI, vol. 12(10), pages 1-13, May.
    2. Wenxin Dong & Xiaolin Pu & Biao Ma, 2019. "An Investigation on the Function of Mud Cakes on the Inhibition of Low Molecular Inhibitor for Water-Based Drilling Fluids," Energies, MDPI, vol. 12(19), pages 1-15, September.

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