Hydraulically Actuated Abrasive Jet Tool for Consistent Perforations
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Solution Overview
Problem
Existing perforation technologies in the oil and gas industry face challenges in determining the optimal placement of perforations, achieving desired hydraulic fracturing stages, and creating consistent perforation geometry, leading to inefficiencies in fluid flow and fracture initiation.
Innovation Solution
A hydraulically actuated assembly with telescopic cylinders is used to adjust standoff distances, allowing the abrasive jet perforating tool to move towards or away from the subterranean formation, enabling deeper and wider perforations by controlling fluid pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a fixed standoff distance is used in abrasive jet perforating tools, then the device structure is simple, but the perforation geometry consistency and fluid flow efficiency are poor
Solution Approach 1:
The patent applies the dynamics principle by making the standoff distance adjustable rather than fixed. The abrasive jet perforating tool is equipped with a positioning mechanism that allows it to move along the wellbore axis, enabling dynamic adjustment of the distance between the tool and the formation. This dynamic capability permits optimization of perforation geometry consistency for different formation conditions while maintaining a relatively simple overall device structure.
Solution Approach 2:
The patent applies parameter changes by allowing variation in the standoff distance parameter. The positioning mechanism enables change in the positional parameter of the perforating tool relative to the formation, which directly affects perforation geometry. This parameter adjustment capability improves perforation consistency without requiring complex multi-component systems.
2Productivity
If the perforating tool operates at a fixed position, then the device operation is simple, but the productivity and reservoir connectivity are reduced
Solution Approach 1:
The patent applies dynamics by enabling the perforating tool to dynamically reposition itself along the wellbore axis. The positioning mechanism allows the tool to adjust its standoff distance and move to optimal positions for maximizing reservoir connectivity and productivity. This dynamic positioning capability enhances performance while maintaining straightforward operation through automated or semi-automated control.
Solution Approach 2:
The patent applies self-service by incorporating a positioning mechanism that enables the perforating tool to autonomously adjust its own position relative to the formation. The tool can self-position at optimal standoff distances without requiring complex external intervention, thereby improving productivity while keeping the operation simple and straightforward.
3Manufacturing precision
If abrasive particles are injected at high pressure, then the perforation depth is increased, but the fluid flow efficiency and fracture initiation are compromised
Solution Approach 1:
The patent applies dynamics by allowing adjustable standoff distance that optimizes the balance between perforation depth and fluid flow efficiency. By dynamically positioning the abrasive jet tool at different distances from the formation, the system can achieve optimal perforation depth while maintaining good fluid flow characteristics and fracture initiation, preventing the compromise that would occur with fixed high-pressure injection.
Solution Approach 2:
The patent applies parameter changes by varying the standoff distance parameter to optimize the perforation process. This parameter adjustment allows control over the interaction between abrasive particles and the formation, enabling achievement of both sufficient perforation depth and good fluid flow efficiency without compromising either aspect through fixed high-pressure injection.
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 solution enhances perforation geometry, improving fluid flow and fracture initiation by focusing abrasive particles more effectively, resulting in deeper and wider perforations that facilitate better reservoir connectivity and productivity.
Implementation Method 1
a hydraulically actuated subassembly attached to the abrasive jet perforating tool and configured to move the abrasive jet perforating tool towards or away from the subterranean formation along the radial direction
Implementation Method 2
the hydraulically actuated subassembly includes one or more telescopic cylinders that each has a plurality of stages configured to sequentially extend or retract along the radial direction
Implementation Method 3
The abrasive jet perforating tool is configured to inject abrasive particles along a radial direction to create perforations in the subterranean formation
Data Source
AI summary
Devices, systems, and methods for a bottom hole assembly to form perforations are provided. An abrasive jet perforating tool is configured to couple to a downhole conveyance that is extendable from a terranean surface, through a wellbore, and to a subterranean formation. The abrasive jet perforating tool is configured to inject abrasive particles along a radial direction to create perforations in the subterranean formation. A hydraulically actuated subassembly is attached to the abrasive jet perforating tool and configured to move the abrasive jet perforating tool towards or away from the subterranean formation along the radial direction.