National Engineering Laboratory for Exploration and Development

Fengcheng, China

National Engineering Laboratory for Exploration and Development

Fengcheng, China
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Xue X.-J.,Petrochina | Xue X.-J.,National Engineering Laboratory for Exploration and Development | Li X.-W.,Petrochina | Li X.-W.,National Engineering Laboratory for Exploration and Development | And 6 more authors.
Oilfield Chemistry | Year: 2012

According to the characteristic of polyhydroxy alcohol fracturing fluid system, the regeneration of the system was investigated for the first time. A stable organic boron crosslinking poly (vinyl alcohol) regenerable polyhydroxy alcohol fracturing fluid system was prepared, and the rheological property of the polyhydroxy alcohol fracturing fluid system with different regenerable times was also researched. The effect of regenerable times on the rheological property of the system was studied. The results indicated that the aims of gelout and regeneration could be achieved by regulating its pH value and controlling its crosslinking degree. With the increase of the regenerable time, the performance of the temperature resistance and shearing resistance were decreased, and the viscoelasticity of the gel was also reduced.

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