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The 300PSI Seal-Maker system was originally designed to repair single and multiple casing leaks that occur in an injection well annulus where there is direct communication, through a leak in the casing string, directly into the original open- hole well-bore and the adjacent earth strata.
The system is a multiple stage chemical process. The chemicals are pumped in conjunction with one another to react in a precisely controlled order. The chemicals ultimately yield a composite cement that sets externally to the casing and is independent of time constraint. The composite develops excellent strength characteristics that increase over time. The composite is stable throughout the entire pH range adding long term stability while in direct contact with acidic or alkaline formation fluids. The final result is a permanent casing repair.
The process is initiated by pressure differential and shear. As the chemicals coalesce they start to form a bridging mechanism that is highly porous. This porous medium allows a filtration process to occur. Sequentially, the composite materials then provide the additional filtration components and the molecular elements that are necessary to build a crystalline composite cement structure. Crystallization of the composite progresses as the chemicals filtrate through and around the bridging medium.
This filtration process continues until the composite has fully developed from the initial point of restriction inwards to the well casing. The last stage provides additional molecular components that impregnate the crystalline structure to enhance the solidification of the composite. Compressive strength builds at this point as a non-permeable seal forms permanently at the leak. Since no further filtration is possible beyond the leak point, residual fluid inside the casing cannot undergo the physical process necessary to initiate solidification, thus ensuring that it remains liquid.
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