Packer around interlayer
The invention belongs to the technical field of oilfield downhole tools, and particularly relates to an interlayer winding packer which comprises an upper packer body, a middle communication pipe column and a lower packer body, the upper packer body and the lower packer body are communicated through...
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| creator | ZHOU CHUNYANG ZHANG YOUXING GAO TIEQING LIU WENJUN YUAN FENG JIA GUANGCAI GUAN MINGJUN REN YONGQING ZHAO PING JIA GUANGSHENG |
| description | The invention belongs to the technical field of oilfield downhole tools, and particularly relates to an interlayer winding packer which comprises an upper packer body, a middle communication pipe column and a lower packer body, the upper packer body and the lower packer body are communicated through the middle communication pipe column, the upper packer body and the lower packer body are pressed through a casing pipe to be set, and the middle communication pipe column comprises a double-wall pipe. Wherein the double-wall pipe is sleeved with an expansion type rubber sleeve assembly, a liquid through hole A which leads internal pressure of the double-wall pipe to the outside of the double-wall pipe and expands the expansion type rubber sleeve assembly is formed in the double-wall pipe, a setting driver which drives the expansion type rubber sleeve to set is inserted in the double-wall pipe in a sealed mode, and the setting driver is made of soluble materials. According to the upper packer and the lower packer |
| format | Patent |
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Wherein the double-wall pipe is sleeved with an expansion type rubber sleeve assembly, a liquid through hole A which leads internal pressure of the double-wall pipe to the outside of the double-wall pipe and expands the expansion type rubber sleeve assembly is formed in the double-wall pipe, a setting driver which drives the expansion type rubber sleeve to set is inserted in the double-wall pipe in a sealed mode, and the setting driver is made of soluble materials. 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Wherein the double-wall pipe is sleeved with an expansion type rubber sleeve assembly, a liquid through hole A which leads internal pressure of the double-wall pipe to the outside of the double-wall pipe and expands the expansion type rubber sleeve assembly is formed in the double-wall pipe, a setting driver which drives the expansion type rubber sleeve to set is inserted in the double-wall pipe in a sealed mode, and the setting driver is made of soluble materials. 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Wherein the double-wall pipe is sleeved with an expansion type rubber sleeve assembly, a liquid through hole A which leads internal pressure of the double-wall pipe to the outside of the double-wall pipe and expands the expansion type rubber sleeve assembly is formed in the double-wall pipe, a setting driver which drives the expansion type rubber sleeve to set is inserted in the double-wall pipe in a sealed mode, and the setting driver is made of soluble materials. According to the upper packer and the lower packer</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS |
| title | Packer around interlayer |
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