特种油气藏2011，Vol.18Issue(4)：117-120,4.
乾安地区低渗透砂岩储层保护技术研究
摘要
Abstract
Impairment evaluation of drilling fluid system for the second spud in Jilin Oilfield has been conducted through laboratory experiment based on reservoir sensitivity evaluation. Experiment result indicates that the damage degree of the second spud drilling fluid system to the low permeability sandstone reservoirs in the Qian' an area is 34. 52% , with liquid phase damage being the dominant and there is also severe water blocking damage. The key to reducing the damage is to control the invasion of drilling fluid filtrate. The second spud drilling fluid system is optimized based on d90 temporary plugging theory and water blocking prevention techniques. The degree of core damage has reduced by 16. 25% after adding shielding temporary plugging agent and by about 5% after adding new water blocking prevention agent, so that the low permeability sandstone reservoirs can be effectively protected.关键词
低渗透储层/钻井液滤液/屏蔽暂堵/防水锁/储层损害/吉林油田Key words
low permeability reservoir/ drilling fluid filtrate/ shielding temporary plugging/ water blocking prevention/ reservoir damage/ Jilin Oilfield分类
能源科技引用本文复制引用
孙玉学,姚飞,张顺..乾安地区低渗透砂岩储层保护技术研究[J].特种油气藏,2011,18(4):117-120,4.基金项目
吉林油田“乾安低渗透高效开发储层保护研究技术”项目部分内容(JW10-W-16-JZ-5-43) （JW10-W-16-JZ-5-43）
