包埋碳量子点示踪功能型微球调驱剂制备及检测方法

doi:10.3969/j.issn.1006-6535.2026.01.019

特种油气藏 ›› 2026, Vol. 33 ›› Issue (1): 160-166.DOI: 10.3969/j.issn.1006-6535.2026.01.019

包埋碳量子点示踪功能型微球调驱剂制备及检测方法

郐婧文^1,2,3, 鞠野^1,2,3, 刘长龙^1,4, 刘丰钢^1,2,3, 徐国瑞^1,2,3, 张文喜^1,2,3

1.海洋油气高效开发全国重点实验室,北京 102209;
2.天津市海洋石油难动用储量开采企业重点实验室,天津 300459;
3.中海油田服务股份有限公司,天津 300459;
4.中海石油(中国)有限公司天津分公司,天津 300459

收稿日期:2024-05-22 修回日期:2025-11-07 出版日期:2026-02-25 发布日期:2026-06-22
作者简介:郐婧文(1994—),女,工程师,2017年毕业于东北石油大学石油工程专业,2020年毕业于该校油气田开发工程专业,获硕士学位,现从事海上油田提高采收率技术研究与应用方面的工作。
基金资助:
国家科技重大专项“渤海双高油田多级窜逸堵调驱一体化技术研究及示范”(2016ZX05009003-010-001)

Preparation and detection methods of a carbon quantum dot-embedded tracer-functional microsphere flooding agent

KUAI Jingwen^1,2,3, JU Ye^1,2,3, LIU Changlong^1,4, LIU Fenggang^1,2,3, XU Guorui^1,2,3, ZHANG Wenxi^1,2,3

1. State Key Laboratory of Offshore Oil & Gas Exploitation, Beijing 102209, China;
2. Tianjin Key Laboratory for Exploitation of Difficult-to-Recover Offshore Oil Reserves, Tianjin 300459, China;
3. CNOOC China Oilfield Services Co., Ltd., Tianjin 300459, China;
4. CNOOC(China)Co., Ltd.Tianjin Branch, Tianjin 300459, China

Received:2024-05-22 Revised:2025-11-07 Online:2026-02-25 Published:2026-06-22

摘要/Abstract

摘要： 为提高聚合物微球在产出液中的检测灵敏度,利用种子包埋和离子键固定技术研制了一种兼具调驱功能和示踪功能的包埋碳量子点示踪功能型微球调驱剂,对其性能进行了评价,并建立了一套检测精度高、检测时间短的检测方法。研究表明:示踪微球调驱剂具有较优的传输运移能力且可在岩心内形成深部封堵,在渗透率为300.0 mD条件下,示踪功能型微球调驱剂封堵率为88.9%。建立的油水静置分液—正己烷洗涤后分液—UV光照90 min的示踪功能型微球调驱剂检测方法的检测时间小于2 h;相较于传统检测方法,该方法通过油水静置分液以及正己烷洗涤后分液的步骤,有效去除了产出液中杂质带来的干扰,提高了对示踪功能型微球调驱剂检测结果的精确性。该研究成果可快速高效实现调驱过程的监测与调整,评估稳油控水效果,为油田高效开发提供技术支持。

关键词: 聚合物微球, 种子包埋, 碳量子点, 调驱剂, 示踪剂, 荧光强度

Abstract: To improve the detection sensitivity of polymer microspheres in produced fluids,a tracer-functional microsphere flooding agent embedded with carbon quantum dots,combining profile control and tracer functions,was developed using seed embedding and ionic bond fixation techniques.Its performance was evaluated,and a detection method with high accuracy and short duration was established.The results show that the tracer microsphere flooding agent has excellent transport capability and can form deep plugging in the core;under a permeability of 300.0 mD,the plugging efficiency of the tracer-functional microsphere flooding agent is 88.9%.The developed detection method for the tracer-functional microsphere flooding agent,involving oil-water settling separation,n-hexane washing and separation,and 90 minutes of UV irradiation,achieves a detection time of less than 2 hours.Compared with traditional methods,this approach effectively removes interference from impurities in the produced fluid through the oil-water settling and n-hexane washing separation steps,thereby improving the accuracy of tracer microsphere detection results.These findings enable rapid and efficient monitoring and adjustment of the flooding process,allow evaluation of oil stabilization and water control effects,and provide technical support for efficient oilfield development.

Key words: polymer microspheres, seed embedding, carbon quantum dots(CQDs), flooding agent, tracer, fluorescence intensity

中图分类号:

TQ317.9

郐婧文, 鞠野, 刘长龙, 刘丰钢, 徐国瑞, 张文喜. 包埋碳量子点示踪功能型微球调驱剂制备及检测方法[J]. 特种油气藏, 2026, 33(1): 160-166.

KUAI Jingwen, JU Ye, LIU Changlong, LIU Fenggang, XU Guorui, ZHANG Wenxi. Preparation and detection methods of a carbon quantum dot-embedded tracer-functional microsphere flooding agent[J]. Special Oil & Gas Reservoirs, 2026, 33(1): 160-166.

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包埋碳量子点示踪功能型微球调驱剂制备及检测方法

Preparation and detection methods of a carbon quantum dot-embedded tracer-functional microsphere flooding agent

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