摘要
依据拟三维水力压裂模型,改进了拟三维裂缝及近缝地层温度场计算模型及其解法。在该模型中,考虑了压裂液综合滤失系数和压裂液流变性的粘温关系。计算结果表明,缝内液体与岩石壁面之间存在温度梯度;缝口液体温度接近井底温度,缝端液体温度接近地层温度;近缝地层边界等温线呈椭圆形,其它等温线近似为平行四边形。
Base on 3- D hydraulic fracture model,we modify the model for calculating the temperature profiles in fracture and near the fracture. The relation between viscosity and temperature is taken into account.The result indicates there exists a temperature grad between the fracture fluid and the rock wall; the temperature near wellbore is near to that in wellbore at that time and the temperature in the fracture tip is close to the reservoir temperature;the isotherm that the value of temperature is reservoir temperature is elliptic, the others appear parallelogram.
出处
《大庆石油地质与开发》
CAS
CSCD
2004年第3期68-69,74,共3页
Petroleum Geology & Oilfield Development in Daqing
关键词
水力压裂
裂缝
裂缝温度
流体温度
温度分布
hydraulic fracturing
fracture
fracture tempreture
fluid tempreture
tempreture distribution
