低浓度瓜尔胶压裂液在塔中志留系的研究与应用  

Study and application of low concentration guar gum fracturing fluid in Silurian

作　　者：杨向同[1] 张亚红[2] 刘举[1] 李秀辉[2] 吴红军[1] 李福远 Yang Xiangtong;Zhang Yahong;liuju;Li Xiuhui;wu hongjun;Li Fuyuan(Oil and Gas Engineering Research Institute of PetroChina Tarim Oilfield Company,Xinjiang Korla 841000)

机构地区：[1]中石油塔里木油田分公司油气工程研究院,新疆库尔勒841000 [2]中国石油大学(北京),北京102200

出　　处：《石化技术》2017年第5期81-83,共3页Petrochemical Industry Technology

摘　　要：针对塔里木油田塔中志留系低孔低渗储层油气产能低的难题,开展了大量水力加砂压裂改造技术研究。本研究形成了一套低浓度瓜尔胶压裂液体系,在塔中志留系储层实践后增产效果明显。该体系突破了"最低临界瓜尔胶浓度"限制,采用新型硼化合物交联剂使压裂液体系瓜尔胶浓度比常规体系下降40%,大幅降低了压裂液残胶和残渣对水力裂缝导流能力和储层的伤害。为后续的低孔低渗储层压裂改造提供指导。In view of the problems of low oil and gas productivity in Silurian low porosity and low permeability reservoirs in Tarim oilfield,A large number of hydraulic sand fracturing technology.In this study,a low concentration guar gum fracturing fluid system was developed,The effect of increasing production is obvious in Silurian Reservoir in Tazhong area.The system breaks through the“minimum critical guar gum concentration”limit,A new type of boron compound crosslinking agent was used to reduce the guar gum concentration of fracturing fluid system40%,It greatly reduces the ability of the residual oil and residue of fracturing fluid to the hydraulic fracture conductivity and reservoir damage.To provide guidance for the subsequent fracturing of low porosity and low permeability reservoirs.

关 键 词：塔中志留系 低浓度 硼化合物 低伤害 

分 类 号：TE357.12[石油与天然气工程—油气田开发工程]