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SERVA SJS downhole tools are designed to perform in demanding high-temperature and high-pressure (HTHP) applications in all climates and geographical locations. With resources like our own rubber shop and indoor test well, we offer unparalleled capabilities to develop and optimize tools to your specific requirements. Our API 11D1 certified packers, bridge plugs, cement retainers, flow control downhole tools, coiled tubing downhole tools and all related accessories help our customers to achieve their success in downhole operations.

SERVA SJS downhole tools are offered in various material configurations for a variety of well conditions. The following alloys and groups of alloys are the most common materials used for the construction of packers and related equipment:
■ Standard, non-corrosive service: Low alloy steels (e.g. 4140 or Chinese 42CrMo) with mechanical properties compatible with API P1 10 tubulars.
■ Non-corrosive service containing H2S: Low alloy steels (e.g. 4140 or Chinese 42CrMo) with mechanical properties compatible with API L80 tubulars.
■ Corrosive CO2 service with little or no H2S: Martensitic and PH stainless steels (e.g. 9Cr, 13Cr, 17-4PH) with mechanical properties that vary from 80 ksi to 110 ksi minimum yield strength. The selection of the specific corrosion resistant alloy depends on the environment (pH, chlorides, temperature, H2S, etc.) and strength requirements.
■ Severely corrosive CO2 and H2S: Nickel alloys such as 718 at strength level of 110 ksi minimum yield strength and higher.

For equipment required to perform a temporary function and then allowing quick removal by drilling or milling, an additional group of materials are used:
■ Cast iron
■ Reinforced polymer based composites



From the Siberian tundra to the north China Sea to the Middle East, to Africa and all across the Americas, SERVA

is defining this century’s model of oil and gas production, onshore and offshore, with vision, innovation,

manufacturing and resources to serve the growing demands of progress and opportunity.