Improving Cellulose Nanocrystal Properties for Oil & Gas Applications: A Continuation on Studies of Nanocellulose Colloidal and Thermal Stability

改善油用纤维素纳米晶体特性

• 批准号: 509230-2017
• 负责人: Cranston, Emily
• 金额: $ 0.91万
• 依托单位: McMaster University
• 依托单位国家: 加拿大
• 项目类别: Engage Plus Grants Program
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=639898
• 关键词: Improving; Cellulose; Nanocrystal; Properties; Oil

Schlumberger is the world's largest provider of technology, services, software, and project management to thepetroleum industry. Schlumberger would like to use cellulose nanocrystals (CNCs) in a variety of fluids relatedto oil & gas extraction in an effort to improve their rheological performance, colloidal stability, mechanicalstrength, and increase their renewable/biodegradable content. However, CNCs are thermally unstable above150 degrees C, which makes them unsuitable for such applications.This project is a continuation on an Engage Grant and aims to produce CNCs that are more thermally andcolloidally stable and that do not lose their favourable properties at high temperatures. In our preliminary study,we produced CNCs with new acids and new acid combinations that allowed us to tailor particle size,thermal/colloidal stability; however, the stability was still not sufficient for oil & gas applications (e.g., 250degrees C, 20,000 psi and brine-level salt conditions). This current project will elucidate the dominant factorsresponsible for CNC thermal stability in both dry and wet conditions and will examine CNC performance inbrine and cement foams. We will also investigate a new surface modification route for CNCs, which will bedone during the CNC production, as a method to impart steric stabilization. We will compare the thermal,chemical, rheological and physical properties of the improved-stability CNCs to more conventional CNCs.CNCs are a Canadian innovation produced from wood pulp with potential application in paints, packaging,food, and composites, however oil & gas fluids would represent the first high volume application. Through thiswork, Schlumberger will be able to assess CNCs in various applications which will give them a significantmarket advantage. The IP developed will be exploited by Schlumberger and their customers in Canada. We arecommitted to helping the forestry and cleantech sectors by developing products with a greener footprint. Theimpact of this work will be economically significant for Canada, will lead to job creation in Canada and willensure that we remain at the forefront of CNC discoveries.

斯伦贝谢是全球最大的石油行业技术、服务、软件和项目管理提供商。斯伦贝谢希望在与石油和天然气开采相关的各种流体中使用纤维素纳米晶体 (CNC)，以努力提高其流变性能、胶体稳定性、机械强度，并增加其可再生/可生物降解含量。然而，CNC 的热稳定性高于 150 摄氏度，这使得它们不适合此类应用。该项目是 Engage Grant 的延续，旨在生产热稳定性和胶体稳定性更高且在高温下不会失去其有利性能的 CNC。在我们的初步研究中，我们用新的酸和新的酸组合生产了 CNC，使我们能够定制颗粒尺寸、热/胶体稳定性；然而，其稳定性对于石油和天然气应用（例如 250 摄氏度、20,000 psi 和盐水水平盐条件）仍然不够。当前的项目将阐明在干燥和潮湿条件下影响 CNC 热稳定性的主导因素，并将检查 CNC 在盐水和水泥泡沫中的性能。我们还将研究一种新的 CNC 表面改性路线，该路线将在 CNC 生产过程中完成，作为赋予空间稳定性的方法。我们将比较稳定性改进的 CNC 与更传统的 CNC 的热、化学、流变和物理特性。CNC 是加拿大的一项由木浆生产的创新产品，具有在油漆、包装、食品和复合材料领域的潜在应用，但石油和天然气流体将代表第一个大批量应用。通过这项工作，斯伦贝谢将能够评估各种应用中的 CNC，这将给他们带来显着的市场优势。所开发的知识产权将由斯伦贝谢及其加拿大客户使用。我们致力于通过开发具有更环保足迹的产品来帮助林业和清洁技术行业。这项工作将对加拿大产生重大的经济影响，为加拿大创造就业机会，并确保我们始终处于 CNC 发现的前沿。