Water injection packer

• Main Authors: NING YISHENG, SHI ZHENGANG, WANG PENG, LI YING, LIU CHUANJUN
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2009
• 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

The utility model relates to a water injection packer, which comprises an upper joint, an inner tube and a lower joint, which are linked in sequence. A sheath is sleeved outside the upper joint; a well cleaning piston is arranged between the sheath and the inner tube; the lower part of the sheath is...