B301试验区油井结蜡主控因素及对策
Main Control Factors and Countermeasures for Oil Well Waxing in B301 Test Area
张继红 1李琬姝 2谭欣剑 2张刚 3朱正俊4
作者信息
- 1. 东北石油大学三亚海洋油气研究院,海南 三亚 570203;东北石油大学,黑龙江 大庆 163318
- 2. 东北石油大学,黑龙江 大庆 163318
- 3. 中国石油大庆油田有限责任公司呼伦贝尔分公司,黑龙江 大庆 021008
- 4. 中国石油塔里木油田分公司,新疆 库尔勒 841000
- 折叠
摘要
B301 试验区位于H盆地,该试验区目前油井结蜡现象严重,防蜡效果较差,防蜡措施有效期较短,无法满足油井防蜡的需要,亟需找到影响油井结蜡的主控因素.针对上述问题,通过室内实验对产出液中的蜡质、胶质、沥青质和机械杂质含量进行测定.利用Olga数值模拟软件对温度、压力、流速进行模拟.研究表明:蜡质、沥青质、机械杂质含量以及温度、流速为影响B301 试验区油井井筒结蜡的主控因素,影响程度强弱依次为蜡质、温度、沥青质、机械杂质、流速.研究成果可为B301 试验区进一步高效开发提供理论与技术基础,为高含蜡油藏防蜡方法提供参考.
Abstract
The waxing is severe,the antiwaxing effect is poor,and the validity period is short in oil wells in B301 test area of H Basin.So,it is urgent to find out the main controlling factors affecting wax formation to meet the needs of antiwaxing in oil wells.To address the above problems,the wax,gum,asphaltene,and mechanical impu-rity contents in the produced fluid were measured by indoor experiments.Olga numerical simulation software was used to simulate the temperature,pressure,and flow rate.The study shows that wax,asphaltene,mechanical im-purities,temperature,and flow rate are the main controlling factors affecting wellbore waxing in B301 test area,and the degree of influence is in the order of wax,temperature,asphaltene,mechanical impurities,and flow rate.The research results provide a theoretical and technical basis for further efficient development of B301 test area and a reference for anti-waxing methods in highly waxed oil reservoirs.
关键词
采油采气/油井结蜡/主控因素/B301试验区/H盆地Key words
oil and gas recovery/oil well waxing/main controlling factors/B301 test area/H Basin引用本文复制引用
基金项目
海南省重点研发计划(ZDYF2022GXJS013)
出版年
2024
国家科技期刊平台
NSTL
万方数据