Disc type pneumatic slip for oil production well
A disc type, oil production well technology, applied in the direction of drilling equipment, earthwork drilling, wellbore/well parts, etc., can solve the problems of small centering force of clamping tubing, inconvenient installation and use, etc., to ensure smooth progress, centering force Large, solve the effect of small centering force
Active Publication Date: 2015-01-28
BAZHOU SHIDA HONGSHENG PETROCHEM FACILITIES
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Problems solved by technology
[0006] The beneficial effect of the present invention is that: a disc-type pneumatic slip for oil production wells aims to solve the problems of inconvenient installation and use and low clamping force of the oil pipe in the existing pneumatic chuck, and adopts the integral disc-type slip seat structure for the first time , fixed at the wellhead position through the wellhead flange, using three to four vertically acting cylinders to directly push the three to four petal slips up and down to clamp or loosen the tubing, with strong centering force, reliable clamping, easy installation and use, etc. features
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[0010] The invention provides a disc-type pneumatic slip for an oil production well, which mainly consists of a disc-type slip seat (1), a slip body (2), a cylinder (3), a support plate (4), a connecting rod piece (5 ), the upper pin (6), the lower pin (7), the oil scraper tray (8), the oil scraper (9), and the centering ring (10); wherein, the disc type slip seat (1) is a whole structure, or an integral structure connected by an opening and closing door (11) through slip pins (12), the bottom is a flange with the same size as the oil production wellhead, and the slip body (2) is the same size as the slip seat (1) The inner circular arc cone surface of the cylinder contacts and slides up and down relative to each other. The cylinder (3) is fixed on the peripheral flange of the slip seat (1) and has an attached air passage which can be remotely switched and controlled by the driller. The piston rod of the cylinder (3) is fixed on the On the support plate (4), the slip body (2) ...
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The invention discloses a disc type pneumatic slip for oil production well, consisting of a disc type slip seat (1), a slip body (2), an air cylinder (3), a support disc (4), a connecting rod sheet (5), an upper hinge pin (6), a lower hinge pin (7), an oil scraper tray (8), an oil scraper (9) and a centering ring (10). The disc type pneumatic slip is of integral hoisting structure, and fixedly installed on a wellhead flange of the oil production well, and operation of a power end is completed by one driller; the slip body in the disc type pneumatic slip for the oil production well can be full-automatically move up and down, can effectively tightly clamp and hold an oil pipe and meanwhile provide a function of automatically scraping oil when the oil pipe is raising; the air cylinder is centered, thus being large in force; the equipment is convenient to assemble and disassemble, simple to operate, safe, efficient and excellent in performance.
Description
technical field [0001] The patent of the present invention relates to a wellhead automation tool for automatically clamping the tubing when lifting and lowering the tubing in an oil production well, especially a remote pneumatic operation driven by a disc-type slip seat and a vertical acting cylinder for lifting and lowering the tubing Disc-type pneumatic slips for oil production wells that automatically hold tubing during operation. Background technique [0002] During the downhole operation (workover operation) of the oil production well in the oil field, it is necessary to take out the tubing in the well one by one. The existing oil production wells mostly adopt the double elevator operation mode for the lifting and lowering of the tubing, that is, one elevator is used to hold the tubing coupling. position, or use a slip-type elevator to hold it below the oil pipe coupling, then lift or lower the oil pipe, and when the next oil pipe needs to be connected or removed, anoth...
Claims
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Login to View More IPC IPC(8): E21B19/10E21B37/02
CPCE21B19/10E21B37/02
Inventor 姜建胜姜志岵李倩
Owner BAZHOU SHIDA HONGSHENG PETROCHEM FACILITIES