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A we-type slip casing hanger with a double u-shaped sealing ring structure
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A sealing ring and slip-type technology, applied in the field of WE type slip-type casing hanger, can solve the problems such as the rectangular sealing ring is not easy to be squeezed and deformed, and the sealing reliability is poor.
Active Publication Date: 2020-07-17
四川宝石机械钻采设备有限责任公司
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problems that the existing WE slip type casing hanger adopts rectangular sealing rings that are not easy to be squeezed and deformed, and the sealing reliability is poor. The present invention provides a WE type with double U-shaped sealing ring structure. Slip Casing Hanger
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Embodiment 1
[0021] Such as Figures 1 to 2 As shown, this embodiment provides a WE-type slip casing hanger with a double U-shaped sealing ring structure, including a pressure ring 3, a sealing ring 4, a support ring 5 and a slip seat arranged in sequence from top to bottom 8. It is characterized in that there are multiple screws 2 evenly distributed on the pressure ring 3 according to the circumference, and the screws 2 pass through the pressure ring 3, the sealing ring 4, and the support ring 5 to connect to the slip seat 8, and the sealing ring 4 is Double U-shaped sealing ring.
[0022] The upper surface and the lower surface of the double U-shaped sealing ring are respectively designed with two annular grooves with a U-shaped cross section; There are two ring bumps.
[0023] The said pressure ring 3 is provided with a lifting rope 1, and the lifting rope 1 is used for lifting, releasing and moving the hanger.
[0024] The slip seat 8 is provided with a split slip tooth 6 with an ou...
Embodiment 2
[0028] This embodiment is further optimized on the basis of embodiment 1, specifically:
[0029] The slip seat 8 is divided into two halves, and the slip seat 8 includes a slip seat 1 and a slip seat 2, and a connection groove is provided on the outer circle of the joint of the slip seat 1 and the slip seat 2. A hinge 10, a pin 11 and a hook 12 for connecting the first slip seat and the second slip seat are arranged in the groove.
[0030] The outer periphery of the slip seat 8 is provided with a handle 9 .
[0031] A synchronous ring 7 is arranged between the slips 6 and the slip seat 8 .
[0032] In this embodiment, the slips 6 move downwards, and at the same time, the sleeve is blocked by the contraction of the sleeve; the synchronous ring 7, the handle 9, the hinge 10, the pin 11, and the hook 12 are used between the slips 6 mutual cooperation and auxiliary installation.
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Abstract
The invention discloses a WE type slip casing suspender with a double U-shaped sealing ring structure, and relates to the field of petroleum machineries. The WE type slip casing suspender comprises a pressure ring, a sealing ring, a support ring and a slip bowl from top to bottom in sequence, wherein a plurality of screws are evenly distributed on the circumference of the pressure ring, the screws pass through the pressure ring, the sealing ring and the support ring and are connected to the slip bowl, and the sealing ring is a double U-shaped sealing ring. The WE type slip casing suspender has the advantages of being convenient to install and use, capable of effectively hanging the weight of a casing string, reasonable in structure, uniform in stress and greatly improving the sealing reliability.
Description
technical field [0001] The invention relates to the field of petroleum machinery, in particular to a WE type slip casing hanger with a double U-shaped sealing ring structure. Background technique [0002] The slip type casing hanger is installed in the casing head and is used to hang the casing string and seal the annular space between the casing strings. Although the sealing reliability of the slip-type casing hanger is worse than that of the mandrel-type casing hanger, it is widely used because of its reliable use, convenient installation, and the characteristics of being able to sit and hang casing strings at any time. At present, WE type slip hangers at home and abroad usually use artificial excitation to generate seals. The seals use rectangular seal rings. This structure is not easy to be squeezed and deformed, and the seal reliability is poor. The effect of effectively sealing the annular space of the casing string. [0003] Therefore, it is of great significance to...
Claims
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Application Information
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