Feeding tool assembly for suspending packer used for horizontal well multi-sectional fracture

• Main Authors: WANG BINGGANG, MA RENQI, LIU CHUANGANG, DONG JIAN, LIU JINGCHAO, JU SHAODONG
• Format: Patent
• Language: English
• Published: 22.07.2015
• 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 invention discloses a feeding tool assembly for a suspending packer used for a horizontal well multi-sectional fracture. The feeding tool assembly comprises an upper connector, a central pipe, a lower connector, an upper connecting barrel, a lower connecting barrel and a guiding head which are sequentially connected from top to bottom. The lower end of the inner portion of the upper connector is fixedly connected with the upper end of the outer portion of the central pipe. The lower end of the outer portion of the upper connector is connected with an outer cover. The outer cover is provided with a guiding groove. A key is arranged in the guiding groove. The key is fixed to a fixed cover. The central pipe is sleeved with the fixed cover. The central pipe is sleeved with a locking ring. A locking ring cover which is connected with the locking ring through a connecting thread is arranged outside the locking ring. The upper end of an elastic claw is hung on the outer extending edge of the locking ring cover. The lower end of the locking ring cover is connected with the upper end of a piston. The outer circumferential faces of the upper connecting barrel and the lower connecting barrel are provided with multiple modules to be sealed. According to the feeding tool assembly, the hanging bearing capacity is large, when a pipe column is blocked, two solving modes with the large torque, the hydraulic pressure and the machinery are provided, the sealing performance is high, the safety and the reliability are achieved, and the operating risk is low.