Oil and Gas Services
Horizontal well gas-liquid-sand intelligent control and monitoring technology
In the post-fracturing flowback stage of horizontal wells, which is a crucial link between completion and production, the rationality of the flowback system significantly impacts fracturing effectiveness assessment and subsequent production efficiency. The intelligent control and monitoring technology for gas-liquid-sand in horizontal wells can manage pressure drops during flowback, control sand in the formation, optimize flowback systems, monitor Gas-Oil Ratio (GOR), and assess fracturing effectiveness during the flowback process.
- Introduction
- Components
- Specifications
- Case
1、Smart adjustable chokes：real-time choke control, providing optimal flowbac system
2、Sand content analyzer：measures volume sand content rate, combined with flow rate data at the downstream flow meter installation point to calculate sand rate (m³/min)
3、Multiphase flow meter：measures oil, gas, and water flow rates (m³/min), installed downstream of the desander, for measuring oil, gas, and water phases in situations with little to no sand.
In XX1H shale oil horizontal well, an intelligent adjustable oil nozzle control spraying and drainage method is adopted to optimize the size of the oil nozzle. By utilizing reservoir energy, fracturing energy enhancement, and dissolved gas drive elastic energy, returns are achieved. Simultaneously, with the inclusion of a sand monitor and multiphase flow meter, sand content, liquid production, oil production, and water production are monitored to prevent excessive spraying that could lead to sanding and gas breakout issues.
Objective: To maximize the initial self-spraying state and obtain reservoir parameters.
XX1H well intelligent monitoring curve
