Hydraulic well sidetracking whipstock

• Main Authors: WANG DINGKE, XIANG RONG, ZHUO LONGCHENG, CAO YE, XU CHENGJUN, HAN HANPEI, HE SHAOLIN
• Format: Patent
• Language: English
• Published: 21.01.2015
• 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 utility model provides a hydraulic well sidetracking whipstock, and solves the problems of poor layer sealing effect of an existing windowing sidetracking whipstock. The hydraulic well sidetracking whipstock comprises a whipstock body, a hydraulic transmission mechanism and a hydraulic setting mechanism, wherein the whipstock body comprises an anchoring part; the anchoring part comprises a connecting barrel and a lower cone; the hydraulic transmission mechanism comprises a pressure transmission rod, a connecting sleeve screwed with a connecting barrel, a piston rod and a piston barrel; the upper end of the pressure transmission rod is connected with the lower cone; the piston barrel is screwed with the connecting sleeve; a seal ring is arranged between the piston barrel and the connecting sleeve; the pressure transmission rod is fixedly connected with the piston rod; the hydraulic setting mechanism comprises a pressure plate, a pressure cap, a push plate and a rubber barrel; a connecting part is arranged at the bottom of the push plate; a groove is formed in the top of the pressure plate; the connecting part is circumferentially fixed in the groove; the push plate is connected with the piston rod and is against the pressure plate; a clamping groove is formed in the inner edge of the piston barrel; an annular baffle shoulder capable of being clamped in the clamping groove is arranged on the outer edge of the piston rod. The hydraulic well sidetracking whipstock has the advantage of good layer sealing effect.