The challenge of reliably predicting temperature profiles in horizontal wells in tight oil reservoirs

coupled with an incomplete understanding of the factors influencing these profiles

has hindered the quantitative interpretation of tight oil horizontal well production using distributed optical fiber technology. To address this issue

a comprehensive model has been developed to estimate temperature profiles in horizontal wells in tight oil reservoirs

accounting for various microthermal effects. The temperature profiles of horizontal wells in tight oil reservoir under different single factors were simulated and analyzed. Then

through orthogonal experiment analysis

it demonstrates that the sensitivity of different facto

rs from strong to weak is production rate

fracture half-length

reservoir permeability

wellbore diameter

horizontal inclination angle

fracture conductivity

and total reservoir thermal conductivity（

Q

x

f

K

D

θ

F

CD

K

t

）. It is worth noting that fracture half-length and formation permeability emerged as the primary factors influencing the temperature profile of horizontal wells in tight oil reservoirs. The research results provide available basic models and theoretical support for quantitative interpretation of production profile and artificial fracture parameters for horizontal wells in tight oil reservoir.