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Features: 3 7/8 ", 5" full bore formation tester applies a voltage-controlled land and sea, vertical wells, directional wells and cluster wells 5 ", 5 1/2", 7 ", 9 5/8" various cased hole formation testing string, not for openhole formation test string. This series of tests is based on downhole annulus pressure operated switch valve (LPR tester) tester. The tester can be used with tubing conveyed perforating gun joint operations, so string formation testing and perforating tools can be done next time onwards, while also testing operations and acidification, fracturing, production testing, and other integrated operations together. |