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In-situ Test Subs

TIS pressure in-situ test subs are installed between the lower lubricator section and the wireline valve and are designed to significantly reduce operating costs, by removing the need to pressure test with glycol before every wireline run. After the initial pressure test of the complete pressure control package, the tools are changed out via the special TIS acme, secondary quick union connection on the pressure test sub. The secondary quick union connection has stepped seal bore diameters complete with o’ ring seals and an injection port, that allows the union to be externally pressure tested. Due to the small volume of fluid required, testing of the secondary union can be carried out with a hand pump.

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