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 • Previous Articles     Next Articles

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

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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