西南石油大学学报(自然科学版) ›› 2013, Vol. 35 ›› Issue (1): 150-154.

• 油气化学工程与化工 • 上一篇    下一篇

磷酸酯/Fe3+ 型油基冻胶压裂液性能研究

王满学1,何静2,张文生2   

  1. 1. 西安石油大学化学化工学院,陕西西安710065;2. 陕西延长石油有限股份公司研究院,陕西西安710066
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2013-02-01 发布日期:2013-02-01

Performance Research of Oil-based Gelled Fracture Fluid Based on thePhosphoric Acid Ester and Ferric Iron

Wang Manxue1, He Jing2, Zhang Wensheng2   

  1. 1. Xi’an Peturleum University,Xi’an,Shaanxi 710065,China2. Shaanxi Yanchang Petroleum(Group)Co. LTD,DingBian Oil factory,Xi’an,Shaanxi 710075,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2013-02-01 Published:2013-02-01

摘要: 针对磷酸酯/Al3+ 交联的油基压裂液交联速度慢,交联剂溶解性慢、稳定性差和价格高等缺点,首次对磷酸
酯/Fe3+ 交联的油基压裂液体系进行了研究。通过对铁交联剂体系的优化,筛选一种磷酸酯/Fe3+ 交联的新型交联剂
体系,并对磷酸酯/Fe3+ 油基冻胶压裂液性能进行了评价。结果表明:采用30%Fe2(SO4)3+15% 二乙醇胺+55% 水制备
的新型交联剂体系,直接与磷酸酯混合即可形成油基冻胶,其性能不受放置时间的影响,交联速度快,成胶性能好,
10 min 就可达到最大黏度;压裂液的抗温抗剪切性能高,与常规铝交联剂体系比较,压裂液成胶速度提高了20 倍,压
裂液的抗温能力由原来100 ℃提高到135 ℃,并且压裂液的破胶性和滤失性等性能均能达到压裂施工的要求。

关键词: 油基压裂液, 磷酸酯, 三价铁离子, 交联剂, 研究

Abstract: Hydrocarbon gels are used in the low penetrate,low pressure and the water-sensitive formation fracturing. We make
a study on a kind of new phosphate ester and ferric iron to hand over the oil-based fracturing liquid to fasten in this paper. By
optimizing iron crosslinking agent,We choose a new crosslinking agent reacted with phosphate diester,and evaluate the performance
of phosphate diester/Fe3+ oil-based gelled fracturing fluid. The results display the new crosslink system(30%Fe2(SO4)3
+15%Diethanolamine +55%H2O)functions stabily,and it crosslinks quickly with gels,with good gum function. The new fracturing
fluid functions well in temperature resistance and shear resistance. Compared with conventional aluminum crosslinker,
the new fracturing fluid is 20 times faster in gelation,and is able to resist a temperature of 135 ℃. Both the breaking and lossing
of the new fracturing fluid meet the requirement of fracturing.

Key words: oil-based fracturing fluid, phosphoric acid ester, ferric iron, crosslinking agent, study