PumpGuard integrates MeshRite™, a three dimensional filter media ideal for controlling heterogeneous sands, with a unique pressure activated cone valve that is preset to open at a specific differential pressure. MeshRite is one of the best sand and fines control technologies on the market with exceptional open flow area, retained permeability and plugging resistance. PumpGuard can be designed with one valve at the end of the screen, or with multiple valves configured between screen sections to maximize pump protection and extend pump life.
In fractured wells, and in wells drilled into unconsolidated reservoirs, the production of proppants and reservoir sands through downhole pumps can reduce pump run life, or cause catastrophic pump failure. In addition to the cost of new pump equipment, replacing failed pumps involves expensive rig time as well as lost production time. Astute operators seek completion strategies and technologies that will extend pump life, allow them to better predict the need for well service, and prolong the productive life of the well in order to recover maximum reserves.
PumpGuard is a configurable MeshRite™-based screen assembly that is installed upstream of the bottom hole pump, or ESP intake. It has proven to economically extend the run life of these pumps by temporarily preventing solids from encroaching into the pump intake.
The design allows the tool to be configured to the reservoir by presetting the pressure at which the valve will open.
MeshRite offers a high open flow area of 40%, high plugging resistance and better permeability than other screens as shown in the comparison chart:
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PumpGuard is an all purpose rod and ESP pump protection system that does not require any sizing of the MeshRite screen regardless of the variations in particle sizes. It has successfully extended well life in:
PumpGuard is configured to specific vertical and horizontal well requirements by selecting: