Study on the Performance of Abandoned Medical Masks in Drilling Fluid Under the Background of "COVID-19"
1. School of Petroleum Engineering, Xi’an Shiyou University, Xi’an 710065, China
2. Chengdu Longquanyi District Agricultural Product Quality and Safety Supervision and Inspection Station, Chengdu 610100, China
3. Shaanxi Yide Fengda Testing Technology Service Co., Ltd., Baoji 721013, China
| Abstract: | Since the outbreak of novel coronavirus pneumonia in 2019, the demand for disposable medical masks has been enormous and the environmental pollution has become increasingly serious. The current disposal methods for masks cannot effectively solve their environmental pollution problem, and how to dispose of discarded masks has become a hot topic. In recent years, lost circulation has become a major "bottleneck" problem in drilling deep and unconventional oil and gas horizontal wells, attracting widespread attention from scholars both domestically and internationally. This work is based on the properties of polypropylene material to perform simple physical treatment on discarded medical masks, and develops a deep-water drilling fluid formula suitable for ocean drilling. Preliminary performance studies have been conducted on it. The results show that discarded medical masks have little impact on the conventional performance of the drilling fluid, but significantly improve the plugging performance of the drilling fluid, especially by increasing the pressure bearing capacity of the drilling fluid to 8MPa. This work has proven the feasibility of using discarded medical masks in oil field leak stoppage, promoting the rational resource utilization and sustainable development of medical mask waste, reducing energy and environmental pressure, and helping China achieve the goal of "carbon neutrality". At the same time, it has some inspiration for the research and development of drilling fluid leak stoppage technology. |
| Keywords: | Novel Coronavirus Pneumonia; Discard Mask; Environmental Pollution; PP Fiber; Drilling Fluid |
| DOI: | 10.57237/j.jest.2023.03.003 |
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Received: 6 May 2023
Accepted: 20 June 2023
Published Online: 29 June 2023
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