Experimental investigation of a high temperature resistant and low friction fracturing fluid

• Autorzy: Xiao B. , Zhang S. , Zhang J. , Hou T. , Guo T.

Identyfikatory

DOI

10.5277/ppmp150204

• Języki publikacji: EN

Abstrakty

EN

The performance of a hydraulic fracturing fluid (HFF) system directly determines the efficiency of stimulation. Since the targeted formations of most oil fields in China are characterized by large depth (~5000 m), high temperature (160 to 180 °C) and tight lithology, newer and suitable HFFs have to be developed. Based on a newly synthetized organo-boron/-zirconium cross-linking agent (Gh-g), a composite temperature stabilizer (WJ-6) and other optimized additives via indoor evaluation, this study introduced a novel HFF, which is thermally stable at high temperature (HT) up to 180 °C and exerted low friction pressures. The performance of HFF was evaluated in the laboratory. The experimental results showed that the HFF system performed well at HTs. It maintained a viscosity of 100 mPa•s or more after 90 min of shearing (170 s−1) at 180 °C. Furthermore, the system exhibited delayed cross-linking. It took 120 s for the cross-linking reaction to complete; therefore, the tube friction was reduced to a large extent. Another characteristic feature of the formulated HFF system was the low friction pressures, where the drag reduction percentage was in the range from 35% to 70%. Moreover, only minor damage was caused by the fluid to the formation core samples. The average core permeability damage was 19.6%. All these qualities ensure that this fluid system is in full compliance with the requirements of the fracturing treatment.

Słowa kluczowe

EN

high temperature fracturing fluid; resistance to shearing; hydroxypropyl guar; low friction; delayed crosslinking

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2015
• Tom: Vol. 51, iss. 1
• Strony: 37--47
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Xiao B.

• MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, China,102249

autor

Zhang S.

• MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, China,102249

autor

Zhang J.

• Huaneng Clean Energy Research Institute, Beijing 102209,China

autor

Hou T.

• MOE Key Laboratory of Petroleum Engineering, China University of Petroleum, Beijing, China,102249

autor

Guo T.

• China University of Petroleum (East China), Qingdao 266555, China

Bibliografia

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