Treatment Fluid Friction Reducer Selection for Lower Pumping Pressure
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Solution Overview
Problem
During the drilling, completion, and stimulation of subterranean wells, treatment fluids experience significant energy losses due to friction, leading to increased horsepower requirements, which can be mitigated by using friction-reducing additives, but existing methods do not optimize fluid composition in real-time based on changing operating conditions.
Innovation Solution
A data-driven model is employed to optimize treatment fluid composition in real-time by adjusting concentration and components based on operating conditions such as temperature, pressure, and tubing diameter, using a performance evaluation metric to enhance fluid efficiency and reduce energy requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If treatment fluids are pumped through wellbores and tubular structures, then treatment can be achieved, but significant energy losses occur due to friction
Solution Approach 1:
The patent applies parameter changes by modifying the rheological properties of the treatment fluid through the addition of friction-reducing chemicals. This changes the fluid's viscosity and flow characteristics to reduce frictional energy losses while maintaining acceptable flow rates through the wellbore and tubular structures.
Solution Approach 2:
The patent introduces friction-reducing chemicals as intermediary substances that mediate between the treatment fluid and the tubular structures. These chemicals act as a mediator to reduce the frictional resistance between the fluid and the wellbore walls, thereby reducing energy losses without significantly impacting the overall flow rate.
2Loss of energy
If friction-reducing chemicals are added to treatment fluids, then energy losses are reduced, but fluid composition becomes more complex
Solution Approach 1:
The patent modifies the chemical composition parameters of the treatment fluid by incorporating specific friction-reducing agents. This parameter change optimizes the fluid's rheological properties to reduce friction while managing the complexity of the resulting multi-component fluid system.
3Productivity
If higher pumping pressures are applied, then flow rates increase, but energy consumption increases
Solution Approach 1:
The patent changes the rheological parameters of the treatment fluid by adding friction-reducing chemicals, which reduces the pressure gradient required for a given flow rate. This allows the system to achieve higher flow rates with lower pumping pressures and reduced energy consumption compared to using the base fluid alone.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for higher flow rates and lower pumping pressures, overcoming conventional pumping pressure limitations and improving fracture extension while maintaining fluid stability, thus optimizing wellbore operations.
Implementation Method 1
Treatment fluids, such as friction-reducers, are chemical additives that alter fluid rheological properties to reduce friction created within a fluid as it flows through tubulars or other flow paths
Data Source
AI summary
Methods for treating a subterranean formation with a treatment fluid comprise introducing the treatment fluid into a wellbore extending into a subterranean formation, measuring a surface treating pressure, changing a concentration of the friction reducer to have at least two surface treating pressure measurements within a surface treating pressure range, establishing a relationship between the surface treating pressure measurements and the concentrations of the friction reducer, evaluating a friction reducer efficiency, and selecting the friction reducer with the best efficiency for a next stage of a multistage fracturing job. The treatment fluid includes water, an acid, a corrosion inhibitor, and a friction reducer.