Check Setting Tool After Plug (SOP)

RUN CHECK-SETTING TOOL AFTER SETTING DOWNHOLE TUBING PLUG

Introduction

However, a company has made advances in this wellbore fluid technology that's not only a gamechanger for the oil and gas industry, but a complete oil and gas well operations revolution, as it offers an intelligent downhole solution to enhance the performance of the downhole equipment. Once a downhole tubing plug has been set, a comprehensive check-setting tool run must be performed to ensure the mandrel locking and thus operational integrity. In this article, we will discuss a step-by-step Standard Operating Procedure SOP for Check-Setting tool Run and its importance.

1. Wireline BOPs and Lubricator Rig-Up

The first step of the check-setting tool run is rigging up the wireline Blowout Preventers (BOPs) and lubricator. Such that the equipment is able to perform the functions and remain intact & operable when it is time for the operations. Proper rig-up mitigates the chances of equipment malfunction and also ensures safe working environment.

2. Valve Operations

To prepare the well for check-setting tool run operations, the Crown Valve (CV), Tubing Kill Valve (TKV) and the ‘Lo-torque’ on TKV are opened to facilitate fluid flow and pressure equalization. An essential step of completing a wellbore is to condition the borehole, to make sure the well has a stable condition for further operations.

3. Lubricator Pressure Testing

By pressure testing the lubricator to 7500 psig, it can be confirmed if the equipment performs within operating limits, under a fluid mixture of 70% water and 30% glycol. This test confirms that the device is rated to withstand pressure and is safe while running the check-setting tool.

4. Pressure Bleeding

This Shut-In Wellhead Pressure (SIWHP) is a key criterion for the prevention of any failure under control of the well during the bleeding pressure in the tree and to make sure it stays operationally safe This step avoids unneeded pressure surges and improves stability.

5. Pressure Bleeding & Valve Closure

Ensure proper pressure control and safety during subsequent operations by closing the Tubing Kill Valve (TKV) and bleeding pressure off the test line and closing the Blowdown (B/D) 'Lo-torque' valve. This move helps prevent the risk of surprise pressure build-up

6. Master and Hydraulic Master valves — Open

Initializing the check-setting tool run phase occurs when the Master Line Master Valve (MLMV) and Hydraulic Master Valve (HMV) are opened allowing deployment of two tools into the wellbore. If done correctly, this step allows the tool to reach its intended depth.

7. Running In Hole (RIH) w/ Check-Setting Tool

With the check-setting tool running in hole (RIH) to the depth of the lock mandrel ensures there is accurate placement for the check-setting process. In fact, the exact position of the tool at the end of the process is essential to verify the mandrel lock integrity.

8. Pulling Out of Hole (POOH)

The POOH process post check-setting operation enables safe removal of equipment from the wellbore. Now, this is the end of the check-setting tool run and can be verified.

9. Tool Position Confirmation

The cv closure and number of turns confirmation allows the determination below the tool is inside the lubricator allowing retrieval of the tool and mandrel lock correct This step is vital to confirm that the tool has done its job.

10. Valve Closure

Based on confirming tool position, closing HMV and MLMV allows for well control and operational safety. If pressure is not maintained, it could lead to pressure differentials that would cause a leak or a rupture.

11. CV Opening for Pressure Bleeding

Bleeding the lubricator from the CV: To allow for safe removal of equipment and to avoid fluid entrapment, it is critical to open the CV to bleed any remaining pressure from the *lubricator. This action makes sure that the lubricator depressurizes before it gets remove.

12. Tree Flushing

Flush [turn water on] over the tree if possible to reduce residual contaminants to improve equipment integrity and safety. Cleanliness of the well is a must for the avoidance of any debris accumulation that can affect any upcoming well interventions.

13. Final Valve Closure

A well integrity pressurization with the CV and B/D ‘Lo-torque’ valve closed; signifying the end of a successful check-setting tool run is performed for well integrity and safety. Correct valves sealing ensures the pipe does not leak.

14. Wireline Lubricator Rig Down

This marks the end of the check-setting tool run, where rigging up and down the wireline lubricator and equipment is part of getting the well ready for subsequent operations. Proper rig-down procedures enhance operational efficiency and prevent equipment damage.

15. Locking of Production Tree Valve

The protection of the remainder of the production tree valves protects the well integrity and safety and reduces the environmental damage and downtime. This last stage ensures long-term well stability.

Conclusion

This detailed SOP for performing a check-setting tool run after setting a downhole tubing plug guarantees operational efficiency, safety, and reliability in oil and gas well operations. It is done with an aim to mitigate risks, enhance performance, and maintain best practices, leading to the successful completion of the run of the check-setting tool.

Following such procedures reduces the risk of well integrity failures, sustains pressure control, and ensures all downhole equipment runs as intended. The Ultimate Standard Operating Procedure (SOP) used to Improve Operational Safety and Maximize Production Efficiency in Oil and Gas Industry.