TOOL in Running Position Click to View

TOOL in Set Position Click to View

TOOL MARKETING

The tool is undergoing design modifications and testing to meet PetroQuest specifications. It will be marketed by the Company to national well service equipment rental outlets.

TOOL TESTING PROCEDURE

Step 1: The rubber rings are oiled up to remove friction on the tubing. The tool is then inserted with the rubber rings being at the bottom of TOOL so the thin metal shaft is facing up.

Step 2: The TOOL will drop until it hits the well's formation pressure fluid level in the tubing and the inner shaft will then rise allowing the fluid to move through the center of the TOOL. It will descend to the top of the pump and remain in the last section of tubing. At this point the center shaft will close not allowing fluid to flow through the TOOL.

Step 3: Water is pumped down the tubing to fill it, using 1m more fluid than the depth the well tubing would normally take. If it holds pressure of 2000 psi there is a problem with the pump and not the tubing and the tool is retrieved as per Step 5. If it does not hold pressure there is a problem with the tubing.

Step 4: If pressure is not achieved at Step 3 above, the tubing is pulled until the first hole is found and that section of tubing is replaced. Another test is run to determine if other sections of tubing have failed. Once good pressure is achieved the TOOL is retrieved as per Step 5.

Step 5: To retrieve the TOOL, a rod over shot tool on the rig sandline cable is run in and latched onto the top shaft of the TOOL. It is then slowly pulled up which will allow fluid to flow through the TOOL. (Note: The TOOL needs to be pulled out slowly until the tubing formation pressure fluid level is reached to avoid sucking in fluid from the formation.)

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