基于油基钻屑制备压裂支撑剂的室内研究

doi:10.11885/j.issn.1674-5086.2022.04.14.03

西南石油大学学报(自然科学版) ›› 2024, Vol. 46 ›› Issue (1): 76-88.DOI: 10.11885/j.issn.1674-5086.2022.04.14.03

基于油基钻屑制备压裂支撑剂的室内研究

白杨¹, 常爽², 刘宇程², 柳新国³, 罗平亚¹

1. 油气藏地质及开发工程全国重点实验室·西南石油大学, 四川成都 610500;
2. 西南石油大学化学化工学院, 四川成都 610500;
3. 西南石油大学石油与天然气工程学院, 四川成都 610500

收稿日期:2022-04-14 发布日期:2024-02-01
通讯作者: 白杨,E-mail:281824767@qq.com
作者简介:白杨，1985年生，男，汉族，新疆昌吉人，研究员，博士，主要从事油气井工作液方面的研究工作。E-mail:281824767@qq.com;常爽，1997年生，男，汉族，四川南充人，硕士研究生，主要从事固废资源化方面的研究工作。E-mail:1608259816@qq.com;刘宇程，1977年生，男，汉族，四川乐至人，教授，博士研究生，主要从事油气田污染治理及油气集输安全研究。E-mail:lycswpi@163.com;柳新国，1999年生，男，汉族，新疆巴州人，硕士研究生，主要从事油气井工作液方面的研究工作。E-mail:1623687255@qq.com;罗平亚，1940年生，男，汉族，四川隆昌人，中国工程院院士，主要从事钻井液与完井液、储层保护技术和提高采收率研究。E-mail:luopy@swpu.edu.cn
基金资助:
国家重点研发计划（2019YFA0708303）；四川省科技计划（2020JDJQ0057，2020JDTD0018）；中国石油-西南石油大学创新联合体科技合作项目（2020CX040102，2020CX040201）

Performance Study on the Preparation of Fracturing Proppants Based on Oil-based Drilling Chips

BAI Yang¹, CHANG Shuang², LIU Yucheng², LIU Xinguo³, LUO Pingya¹

1. National Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
2. College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China;
3. Petroleum Engineering School, Southwest Petroleum University, Chengdu, Sichuan 610500, China

Received:2022-04-14 Published:2024-02-01

摘要/Abstract

摘要： 针对热解析后脱油钻屑处理难和处理方式单一的问题，开展了将油基钻屑残渣制备成免烧压裂支撑剂的研究，研究了钻屑与水泥比、CMC添加量、石膏添加量和养护天数共4个因素对免烧压裂支撑剂性能影响。结果表明，在原料配比较优的情况下，制备工艺为钻屑水泥比0.67(质量比)，石膏添加量为6%(质量分数)，CMC添加量为4%(质量分数)，养护时间28 d。该条件下制得的压裂支撑剂颗粒体积密度为1.47 g/cm³，视密度为2.52 g/cm³，35 MPa下颗粒破碎率为1.57%。经扫描电子显微镜与X射线衍射仪分析发现，此时压裂支撑剂内部结构致密，孔隙封闭，水化产物CaO·SiO₂·nH₂O凝胶和钙长石类物质有利于提高压裂支撑剂的综合物理性能。为脱油钻屑残渣利用提供新的方向。

关键词: 免烧支撑剂, 水力压裂, 油基钻屑, 水化硬化, 资源化利用

Abstract: In view of the difficulty in treating deoiled drilling cuttings after thermal analysis and lack of treatment method choices, the research on preparing non-burn fracturing proppant from oil-based drilling cuttings residue was carried out. The research explored the effects of drilling cuttings/cement ratio, CMC addition, gypsum addition and curing days on the performance of non-burn fracturing proppant. The results show that under the condition of excellent raw material ratio, the preparation process is as follows: the drilling cuttings/cement ratio is 0.67 (mass ratio), the gypsum content is 6%(mass fraction), the CMC content is 4%(mass fraction), and the curing time is 28 days. The volume density of fracturing proppant particles prepared under this condition is 1.47 g/cm³, the apparent density is 2.52 g/cm³, and the particle crushing rate under 35 MPa is 1.57%. Through the analysis of scanning electron microscope and X-ray diffraction, it is found that at this time, the internal structure of the fracturing proppant is compact, the pores are closed, and the hydration products C-S-H gel and anorthite are conducive to improving the comprehensive physical properties of the fracturing proppant. It provides a new direction for the utilization of deoiled drilling cuttings residue.

Key words: non-burn free proppant, hydraulic fracturing, oil-based drill cuttings, hydration hardening, resource utilization

中图分类号:

TE256
X741

白杨, 常爽, 刘宇程, 柳新国, 罗平亚. 基于油基钻屑制备压裂支撑剂的室内研究[J]. 西南石油大学学报(自然科学版), 2024, 46(1): 76-88.

BAI Yang, CHANG Shuang, LIU Yucheng, LIU Xinguo, LUO Pingya. Performance Study on the Preparation of Fracturing Proppants Based on Oil-based Drilling Chips[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2024, 46(1): 76-88.

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基于油基钻屑制备压裂支撑剂的室内研究

Performance Study on the Preparation of Fracturing Proppants Based on Oil-based Drilling Chips

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