钻井用聚合物交联凝胶堵漏的综合性实验设计
1. 西安石油大学, 陕西省油气田环境污染控制技术与储层保护重点实验室, 陕西西安 710065
2. 中国石化西北油田分公司, 石油工程技术研究院, 新疆乌鲁木齐 830011
3. 中国石化碳酸盐岩缝洞型油藏提高采收率重点实验室, 新疆乌鲁木齐 830011
4. 西安石油大学, 油气田化学陕西省高校工程研究中心, 陕西西安 710065
| 摘 要： | 为了进一步提高本科生的综合实验技能，渗透绿色化学教育理念，设计了以聚合物为主剂，丝瓜瓤为增韧材料制备聚合物交联凝胶堵漏剂的综合性实验，评价其模拟井下漏层中的作用效能。该实验将有机/无机复合化学知识应用到油田化学领域，同时将实验技能与现场作业（塔河油田）相结合，提升学生的专业技能和油田现场适应能力。塔河油田是西北油田千万吨建设的主阵地，“十四五”期间，大洞基本全控制，如何开发好中小尺度缝洞、提高储量动用，实现塔河稳产面临更大挑战。在采取“一井多控”方式开发中小尺度缝洞时，面临的关键技术难题是碳酸盐缝洞型储层堵漏成功率低，需要进行堵漏作业。通过本实验，可使学生了解了堵漏剂在漏失通道中的作用机理，掌握凝胶堵漏剂的制备和性能评价方法，了解现场施工工艺。 |
| 关 键 词： | 交联凝胶; 凝胶时间; 凝胶强度; 综合实验 |
| DOI： | 10.57237/j.se.2023.02.004 |
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收稿日期: 2023-02-22
接受日期: 2023-03-29
在线出版日期: 2023-04-07
Comprehensive Experimental Design of Polymer Crosslinked Gel Plugging for Drilling
1. Shaanxi Province Key Laboratory of Environmental Pollution Control and Reservoir Protection Technology of Oilfields, Xi’an Shiyou University, Xi’an 710065, China
2. Research Institute of Petroleum Engineering, Sinopec Northwest Oilfield Company, Urumqi 830011, China
| Abstract: | In order to further improve the comprehensive experimental skills of undergraduates and penetrate the concept of green chemistry education, a comprehensive experiment was designed to prepare polymer crosslinked gel plugging agent with polymer as the main agent and loofah pulp as the toughening material, and evaluate its effectiveness in simulating downhole leakage layer. This experiment applies organic/inorganic compound chemistry knowledge to the field of oilfield chemistry, and combines experimental skills with field work (TaHe Oilfield) to improve students' professional skills and oilfield field adaptability. TaHe Oilfield is the main position for the construction of tens of millions of tons of Northwest Oil Field. During the "Fourteenth Five-Year Plan" period, the large caves were basically under full control. How to develop small and medium-sized fractures and improve the use of reserves and realize the stable production of Tahe Oilfield is facing greater challenges. When adopting the "one well multiple control" method to develop small and medium-sized fractures and cavities, the key technical problem is the low success rate of plugging in carbonate fracture-cavity reservoirs, which requires plugging operations. Through this experiment, students can understand the mechanism of plugging agent in the leakage channel, and master the preparation and performance evaluation methods of gel plugging agent. Let students understand the site construction technology. |
| Keywords: | Crosslinked Gel; Gelation Time; Gel Strength; Comprehensive Experiment |
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