摘要
针对龙凤山地区致密砂岩气藏采用常规滑溜水和胍胶压裂液施工时存在对储层伤害较严重的问题,通过高效减阻剂、助排剂以及黏土稳定剂的优选评价试验,开发出一种适合龙凤山地区致密砂岩气藏的高效低伤害压裂液体系,并对其综合性能进行了评价。结果表明:该压裂液体系流变性能较稳定,减阻效果明显优于滑溜水压裂液体系,对天然岩心基质渗透率伤害率明显低于滑溜水压裂液体系和常规胍胶压裂液体系,具有较好的低伤害特性,能够满足致密砂岩气藏压裂施工对压裂液性能的要求。
In view of the serious damage to the reservoirs when conventional slick water and guanidine gum fracturing fluid are used in the construction of tight sandstone gas reservoirs in Longfengshan area,a high-efficiency and low-damage fracturing fluid system suitable for tight sandstone gas reservoirs in Longfengshan area is developed through the optimization evaluation experiment of highefficiency drag reducer,drainage aid and clay stabilizer,and its comprehensive performance is evaluated.The results show that the rheological property of the fracturing fluid system is relatively stable,the drag reduction effect is significantly better than that of the slick water fracturing fluid system,and the average damage rate to the permeability of natural core matrix is significantly lower than that of the slick water fracturing fluid system and guanidine gum fracturing fluid system.It has good low damage characteristics,and can meet the requirements for the performance of the fracturing fluid in the fracturing of tight sandstone gas reservoirs.
作者
牟汉生
MOU Hansheng(Northeast Oil&Gas Branch,SINOPEC,Changchun 130062,China)
出处
《能源化工》
CAS
2022年第2期49-52,共4页
Energy Chemical Industry
基金
国家科技重大专项“大型油气田及煤层气开发”(2016ZX05046)。
关键词
龙凤山地区
致密砂岩气藏
压裂液
低伤害
减阻剂
Longfengshan area
tight sandstone gas reservoirs
fracturing fluid
low damage
drag reducer
