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- Usage
PT Packer could be used to well testing, acidification, fracture, perforation, cementing and many other down-hole operations. - Structure theory
PT Packer is one kind of Packer which has slip structure, high load and compressible setting method. It could keep the high differential pressure from one side of casing. PT Packer has larger by pass area below elements, which could reduce suction in running tools and balance two sides of pressure before setting. The by pass is closed by sealing valve. Well testing apply large by pass structure firstly, then apply hydraulic hold-down slip top coupling structure. - Technical specification
Size | OD (mm) | ID (mm) | Drag block OD (mm) | Total length(mm) | Thread connection |
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4 1/2〞 | Ф94.7 | Ф32 | Ф109.9 | 1249 | 2 3/8EUE. B×P |
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5〞 | Ф95.3 | Ф32 | Ф121.7 | 1249 | 2 3/8EUE. B×P |
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5 1/2〞 | Ф115.5 | Ф48 | Ф133.5 | 1305 | 2 3/8EUE. B×P |
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7〞 | Ф139.7 | Ф50 | Ф189.5 | 1320 | 2 3/8EUE. B×P |
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