(90a) Using Temperature Measurements from Production Logging/Downhole Sensors to Diagnose Multistage Fractured Well Flow Profile
AIChE Spring Meeting and Global Congress on Process Safety
2018
2018 Spring Meeting and 14th Global Congress on Process Safety
6th International Conference on Upstream Engineering and Flow Assurance
Innovative Solutions for Unconventional Resources
Tuesday, April 24, 2018 - 10:15am to 10:33am
The key component of fracturing diagnosis by temperature measurements is the interpretation models. In this paper, we will introduce the models developed for the purpose of fracture diagnosis. The mathematical models are built on mass, momentum and energy balances of each component (reservoir, fracture, well completion and wellbore) in the system, and the components are linked through the boundary conditions. All models can be solved numerically, but for computational efficiency, analytical/semi-analytical solutions are preferred when available. To correctly simulate heat transfer during fracture propagation, a fracture geometry model with appropriate leakoff description is integrated in the model buildup. For flow problem in a fractured well, analytical model, streamline approach and reservoir simulation can all be the solution methods. The paper compares the advantages of each approach.
Field cases from the Eagle Ford, the Marcellus, and the Vaca Muerta shale formations will be presented in the paper to illustrate how the models can be used to generate the fracture/flow distribution. The results show that temperature measurement is a comprehensive tool for fracture diagnosis.