Wellbore Damper Dissipates Pressure Pulses
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The propagation of strong pressure pulses in well systems can cause damage to downhole and surface equipment, necessitating a solution to dampen these energy waves while maintaining fluid flow and pressure during well treatments.
Innovation Solution
Implementing a damper system within the wellbore, such as a gas slug, conical baffles, or flow reduction, to dissipate the energy waves and prevent damage, allowing fluid flow and pressure to be maintained during treatments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If strong pressure pulses are propagated in the well system, then energy waves are generated to fracture or stimulate the formation, but damage to downhole and surface equipment occurs
Solution Approach 1:
A damper system is introduced as an intermediary component between the pressure pulse source and the wellbore system. The damper absorbs and dissipates the strong pressure pulses through mechanisms such as gas compression, friction elements, or viscous damping, converting the harmful mechanical energy into heat or other forms that do not damage equipment. This allows the beneficial stimulation effect to be achieved while protecting the well system from damage.
2Object-affected harmful factors
If pressure pulses are dampened to prevent equipment damage, then equipment safety is improved, but fluid flow and pressure during treatments may be compromised
Solution Approach 1:
The damper system is designed with dynamic characteristics that allow it to adapt to different operating conditions. The damping mechanism can adjust its resistance based on the instantaneous pressure and flow conditions, providing strong damping during pressure pulse events while maintaining minimal resistance during normal fluid flow. This dynamic behavior ensures both equipment protection and treatment effectiveness.
Solution Approach 2:
The damper system is configured to provide intermittent damping rather than continuous resistance. It activates or engages primarily during the brief periods when pressure pulses occur, allowing normal fluid flow to proceed unimpeded during treatment operations. This periodic action pattern ensures that the damper protects equipment when needed without compromising overall treatment productivity.
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
The damper system effectively reduces the risk of equipment damage from pressure pulses, enabling uninterrupted fluid flow and pressure during treatments, such as fracturing, acidizing, and steam injection, by dissipating energy waves and controlling pressure within safe limits.
Implementation Method 1
Implementing a damper system within the wellbore, such as a gas slug, conical baffles, or flow reduction, to dissipate the energy waves
Implementation Method 2
Implementing a damper system within the wellbore, such as a gas slug, conical baffles, or flow reduction, to dissipate the energy waves
Implementation Method 3
conical baffles, or flow reduction, to dissipate the energy waves
Data Source
AI summary
A damper is provided for a well system. The well system utilizes a pressure pulse generator in the wellbore to generate a pressure pulse through fluid, such as treatment fluid, in the wellbore. The damper is received in the wellbore to damp transmission of the pressure pulse through the fluid while also allowing fluid to flow through the wellbore between a terranean surface and a location adjacent the pressure pulse generator. In certain instances, the damper allows flow of fluid past the damper while damping transmission of the pressure pulse through the fluid.