西南石油大学学报(自然科学版)

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Application Research of Fiber Fracturing Technology at Sulige Gas Field

Ren Bin1, Liu Guoliang1, Zhang Mian1, Chi Xiaoming1, Luo Mingliang2   

  1. 1. Changqing Downhole Technology Company,Chuanqing Drilling Engineering Co. Ltd.,Xi’an,Shaanxi 710018,China
    2. School of Petroleum Engineering,China University of Petroleum(East China),Qingdao,Shandong 266580,China
  • Online:2014-02-01 Published:2014-02-01

Abstract:

To solve the problem of proppant backflow during the flowback progress in fracturing at Sulige gas field,a kind
of fracturing fiber was prepared. The suitable size and adding concentration in fracturing fluid were also determined in this
paper. By simulating the model of enforced crack closure and the model of proppant sinking rate,we developed the optimization
software of fibers anti-backflow of proppant,which could give useful messages for flowback of fracturing fluid and for
controlling the proppant backflow. The testing results of fiber-added fracturing and controlled discharge show that the prepared
fibers meet the need of anti-backflow of proppant in Sulige area. The use of fracturing fibers not only decreased the backflow
but also increased rate of drain blowout;moreover,it also reduced the damage chance of needle valve and gate valve during
the flowback.

Key words: fracturing flowback, fiber, proppant, flowback, Sulige Gas Field