Well temperature forecasting method for horizontal production well in fire flooding process

Abstract

The invention discloses a well temperature forecasting method for a horizontal production well in a fire flooding process. The method comprises the following steps of: constructing an oil release section infinitesimal body temperature forecasting model and a non oil release section infinitesimal body temperature forecasting model according to an infinitesimal body heat balance condition in a well section of the horizontal production well; constructing a horizontal production well temperature forecasting model according to a boundary condition of the well section of the horizontal production well, the oil release section infinitesimal body temperature forecasting model and the non oil release section infinitesimal body temperature forecasting model; and generating a horizontal production well temperature forecasting result according to input oil layer parameters of the horizontal production well in an oil layer fire flooding process, well barrel data and fluid data as well as the constructed horizontal production well temperature forecasting model.

Description

technical field [0001] The invention designs the fire-flooding mining technology of the heavy oil reservoir, specifically a method for predicting the well temperature of a horizontal production well during the fire-flooding process. Background technique [0002] my country is relatively rich in heavy oil resources, accounting for more than 20% of the total resources. However, with the continuous development of heavy oil, some reserves are difficult to be effectively exploited by conventional development methods. THAI TM As a new technology for heavy oil development, fire flooding has the advantages of high recovery, low cost, high thermal energy utilization rate, and wide reservoir adaptability. take over technology. [0003] In the process of gravity fire flooding, how to effectively predict the temperature at any point in the production wellbore, ensure that the temperature in the wellbore is within a reasonable range, satisfy the safety of underground and surface equipme...

AI Technical Summary

Problems solved by technology

[0002] my country is relatively rich in heavy oil resources, accounting for more than 20% of the total resources. However, with the continuous development of heavy oil, some reserves are difficult to achieve effective development by relying on conventional development methods. THAI TM As a new technology for heavy oil development, fire flooding has the advantages of high recovery, low cost, high thermal energy utilization rate, and wide reservoir adaptability. Replacement technology

[0003] In the process of gravity fire flooding, how to effectively predict the temperature at any point in the pro...

Images