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Design and application of the evaluation method for fracturing fluid temperature stabilizer |
FAN Haiming1, WANG Zhaoxing1, FAN Haijian1, ZHOU Haigang2, ZUO Jiaqiang3, CHEN Kai3, WANG Zenglin1, KANG Wanli1, DAI Caili1
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(1.College of Petroleum Engineering in China University of Petroleum, Qingdao 266580, China;2.Technology Inspection Center of Shengli Oilfield Company, SINOPEC, Dongying 257061, China;3.Petroleum Engineering Technology Research Institute of Shengli Oilfield Company, SINOPEC, Dongying 257067, China)
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Abstract: |
In order to evaluate the improving effect of the temperature stabilizer on the temperature resistance properties of fracturing fluid, one method was designed, in which the highest temperature Tmax(η0,t0) was determined gradually using the numerical search method starting from the upper limit temperature, and the increased value of applicable temperature ΔTmax(η0,t0) for temperature stabilizer was calculated. The improving effects of two temperature stabilizers for organic boron crosslinked hydroxypropyl guar gum fracturing fluid were analyzed experimentally. It is found that the Tmax(η0,t0) of fracturing fluid increases 4.5-10 ℃ and 6-14 ℃ by the addition of 0.1%-0.8% temperature stabilizer S-1 and S-2, respectively. Hence, the designed evaluation method is able to distinguish the performance of different temperature stabilizers. |
Key words: fracturing fluid temperature resistance properties temperature stabilizer evaluation method design binary search method |
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