Wireline Jet Perforating Tool Tubing Operations
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Solution Overview
Problem
Conventional methods for jet perforating and cutting in oil and gas wells are time-consuming and expensive due to the labor-intensive process of lowering and removing production tubing strings, which requires multiple trips in and out of the well, especially for deeper wells.
Innovation Solution
A wireline-conveyed jet perforating tool with a stepped outer diameter that fits inside a tubing string, allowing for the tool to be lowered and raised through a production tubing string, reducing the need for multiple trips by using existing pump tools and eliminating the need for a secondary coiled tubing system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional tubing conveyed jet perforating tools are used, then the tool can perform perforation and cutting tasks, but the process requires multiple trips of running and removing production tubing strings which is time-consuming and labor-intensive
Solution Approach 1:
The system divides the perforation tool into separable components that can be deployed independently on wireline without requiring movement of the entire production tubing string. The tool can be assembled and deployed in segments, allowing faster deployment and retrieval.
Solution Approach 2:
A wireline intermediary system is introduced to convey the perforation tool into and out of the wellbore, replacing the conventional method that requires moving the production tubing string itself. This intermediary wireline system enables tool deployment without disturbing the production tubing.
2Loss of time
If coiled tubing is used to reduce trip time, then the time to run the tool is reduced, but a secondary expensive system must be on location at the well site
Solution Approach 1:
The wireline system performs multiple functions: it conveys the perforation tool, provides power and control signals, and enables retrieval without requiring a separate coiled tubing system. This multi-functional approach eliminates the need for additional expensive equipment while achieving the same time reduction benefits.
3Ease of operation
If production tubing string is removed and reinserted multiple times, then the jet perforating tool can be deployed, but the process becomes expensive and time-consuming especially for deeper wells
Solution Approach 1:
The perforation tool is extracted from the production tubing string deployment requirement and conveyed independently on wireline. This extraction allows the tool to be deployed without removing or moving the production tubing string, eliminating the time-consuming multiple trips while maintaining full deployment capability.
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 solution significantly reduces the time and cost associated with well operations by minimizing the number of runs required for the production tubing string, allowing for faster and more efficient perforation and cutting processes without the need for a secondary system like coiled tubing.
Implementation Method 1
The tool can be lowered, dropped, or pumped down the tubing string until it comes to rest on the seat nipple
Implementation Method 2
Abrasive jet perforating uses slurry pumped under high pressure to perforate tubular goods around a wellbore
Implementation Method 3
Abrasive jet perforating uses slurry pumped under high pressure to perforate tubular goods around a wellbore, where the tubular goods include tubing, casing, and cement
Data Source
AI summary
A system and method for jet perforating within a well are disclosed. A jet perforating tool configured to be lowered inside a production tubing string comprises a tool body with a passage, an inlet in the upper section, perforating jets in the lower section, and a stepped outer diameter configured to seat on a production tubing string restriction such as a seat nipple. The tool may be lowered into the production tubing string without the need to trip the production tubing string in and out of the wellbore.