An electric connection device for the wellhead of an underwater Christmas tree
An underwater Christmas tree and connecting device technology, which is applied to earth-moving drilling, drilling equipment, wellbore/well components, etc., can solve the problems of easy loosening, complex structure, poor sealing, etc., and achieve increased sealing and simple device structure. , the effect of rapid response
Active Publication Date: 2022-01-18
东营市东达机械制造有限责任公司
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Problems solved by technology
[0004] The purpose of the present invention is to solve the disadvantages of complex structure, easy looseness and poor sealing in the prior art, and propose an electric connection device for the wellhead of an underwater Christmas tree
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0030] refer to Figure 1-2 , an electric connection device for the wellhead of an underwater Christmas tree, comprising a wellhead 1 and an oil production pipe 2, the lower end of the oil production pipe 2 is threadedly mounted with a connecting sleeve 3, and a plurality of power chambers 4 are provided in the connecting sleeve 3 at equal distances from top to bottom and a plurality of transmission chambers 7, a motor 5 is fixedly installed in each power chamber 4, and the lower end of the output shaft of each motor 5 extends into the transmission chamber 7, and the lower end of the output shaft of the motor 5 is coaxially welded with a threaded rod 12 , the threade...
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The invention discloses an electric connection device for the wellhead of an underwater oil production tree, which comprises a wellhead and an oil production pipe. A connecting sleeve is threadedly installed at the lower end of the oil production pipe, and a plurality of power pipes are provided in the connecting sleeve at equal intervals from top to bottom. chamber and a plurality of transmission chambers, a motor is fixedly installed in each power chamber, and the lower end of each motor output shaft extends into the transmission chamber, and the lower end of the motor output shaft is coaxially welded with a threaded rod, so The threaded sleeve on the threaded rod is provided with a pressure plug, and the pressure plug is slidably installed in the transmission chamber, and a porous limiting plate is fixedly installed in the transmission chamber. The invention makes the connection between the wellhead and the oil production pipe more stable and has better sealing performance through the flat lock mechanism and the push lock mechanism, the unlocking speed of the push lock mechanism is increased through the spring, and the unlocking and locking are more convenient and the distance is longer through motor control, and The motor is placed in the power chamber separately, increasing the service life of the device.
Description
technical field [0001] The invention relates to the field of petroleum exploitation, in particular to an electric connection device for wellhead of an underwater Christmas tree. Background technique [0002] The Christmas tree is a wellhead device used for oil extraction such as self-flowing wells and mechanical production wells. It is the main equipment for controlling and regulating oil and gas production at the top of the oil and gas well. The Christmas tree and the wellhead of the oil well are usually connected by a connecting device. [0003] Most of the existing connection devices use hydraulic linkage to lock into the Christmas tree and the oil well, but the hydraulic linkage has poor control effect in long-distance control, and the cost of hydraulic control is high and the control speed is slow. Therefore, electric control is required to increase the difficulty of control , while the existing power control connection device usually has a wedge-shaped clamping structu...
Claims
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IPC IPC(8): E21B33/03E21B17/042
CPCE21B33/03E21B17/0426
Inventor 冯美晗
Owner 东营市东达机械制造有限责任公司