Suspended Fluid Sampling System BOP Deployment
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Solution Overview
Problem
Conventional methods for monitoring and sampling aquifer water levels and fluid extraction in boreholes are costly and require significant operational expenditure, often necessitating the use of workover rigs for installation and retrieval of tubing-deployed systems, and are limited by the depth and reliability of pumping systems.
Innovation Solution
A suspended fluid sampling and monitoring system that includes a Blowout Preventer (BOP) attached to a wellhead, a Tubing Encapsulated Cable (TEC) connected to a sensor package and fluid sample line extending through the BOP into the wellbore, with a fluid sample intake and filtration device, allowing for deployment and retrieval without a drilling or workover rig, and operation at depths below 1000 ft.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tubing-deployed monitoring systems are used, then monitoring capability is achieved, but capital expenditure and operational expenditure are significant due to workover rig requirements
Solution Approach 1:
The patent extracts the monitoring system from the complex workover rig installation process by using a simplified deployment mechanism that can be installed through existing wellheads without requiring heavy drilling equipment. The monitoring system is separated into deployable components that can be inserted independently.
Solution Approach 2:
The monitoring system is divided into modular segments including the monitoring tool, tubing string, and deployment apparatus that can be assembled and deployed separately. This segmentation allows for easier handling and installation without requiring a complete workover rig operation.
2Quantity of substance
If conventional fluid sampling methods are used, then fluid samples can be obtained, but the system is limited to depths above 1000 ft due to pump reliability
Solution Approach 1:
The patent replaces conventional mechanical pumps with an alternative fluid extraction mechanism that eliminates the depth limitations associated with pump reliability. The system uses a different physical principle for fluid withdrawal that does not depend on mechanical pumping components subject to failure at depth.
Solution Approach 2:
The system changes the operational parameters of fluid extraction by operating at different pressure and flow rate conditions than conventional pumps. This allows for effective fluid sampling at depths greater than 1000 feet where traditional pumping systems become unreliable.
3Reliability
If conventional monitoring systems are deployed, then aquifer water levels can be monitored, but retrieval and replacement require workover rigs
Solution Approach 1:
The monitoring system is designed to be extracted from the wellbore without requiring a workover rig. The retrieval mechanism uses simplified equipment that can be deployed through the existing wellhead infrastructure, allowing for easy maintenance and replacement of monitoring components.
Solution Approach 2:
The system incorporates dynamic deployment and retrieval capabilities that allow the monitoring equipment to be moved in and out of the wellbore as needed. This dynamic design enables flexible maintenance operations without requiring fixed, complex installation infrastructure.
Data Source
AI summary
A suspended fluid sampling and monitoring system includes a BOP, the BOP attached to a wellhead. The BOP is positioned above a wellbore. The suspended fluid sampling and monitoring system further includes a TEC, the TEC connected to a sensor package. The TEC and sensor package extend through the BOP into the wellbore. The suspended fluid sampling and monitoring system also includes a fluid sample line, the fluid sample line extending through the BOP into the wellbore. The suspended fluid sampling and monitoring system also includes a fluid sample intake and filtration device, the fluid sample intake and filtration device mechanically coupled to the fluid sample line within the wellbore.