Ultra low temperature super guanidine gum fracturing fluid
A technology of super guar gum and fracturing fluid, which is applied in the field of fracturing fluid, can solve problems such as loss of production stimulation effect of fracturing measures, poor shear resistance of fracturing fluid, incomplete gel breaking of fracturing fluid, etc., to ensure success Adhesive properties, lower activation energy, and thorough gel breaking effects
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[0011] The present invention will be further described below in conjunction with examples:
[0012] Well C 85-P Ping 33 is located in Daqing City, Heilongjiang Province, and belongs to the Chaoyanggou anticline structure of the Chaoyanggou terrace in the central depression area of the northern Songliao Basin. The perforated intervals are 840.0~832.0m, 783.0~775.0m, 732.0~725.0m and 662.0~657.0m. The temperature in the middle of the reservoir is about 30°C.
[0013] For the fracturing fluid system of this layer, the viscosity is 203.1mPa.s under the condition of 30℃, shearing 40min (see Table 1, figure 1 ), and the viscosity of the breaker fluid is 3.8mPa.s after 4h at 30℃, the base fluid viscosity of the fracturing fluid prepared on site is 30.4mPa.s, the crosslinking condition is good, the surface of the gel is smooth, which satisfies the storage requirements. For the needs of layer construction, 4 layers of the well were fractured, and a total of 115m proppant was added. 3 , ...
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