CN211008546U - Automatic deviation adjusting base of oil field wellhead device - Google Patents

Abstract

The utility model provides an automatic tuningout base of oil field wellhead assembly belongs to sealing device technical field. It has solved the problem that current well pole slope makes the contact surface wearing and tearing accelerate easily. This automatic tuningout base of oil field wellhead assembly, including the connector, clamping ring and universal head, the well pole passes and rather than sealed cooperation from universal head center, the clamping ring sets up in connector top and cooperation fixed, the bottom of universal head be located the clamping ring and be provided with the universal sleeve between the connector, universal head is equipped with the seal cover with the outer lane cover of universal sleeve, the bottom of universal head is the spherical structure tilt up setting and the contact surface of universal sleeve and seal cover all cooperates with this slope structure, the bottom top of universal head is seted up and is spherical structure's seal groove and card and be equipped with matched with sealing washer one, the top of universal sleeve is seted up and is spherical structure's seal groove and card and be equipped with matched with sealing washer two. The utility model has the advantage of longer service life.

Description

Automatic deviation adjusting base of oil field wellhead device

Technical Field

The utility model belongs to the technical field of sealing device, a base is used in well pole is sealed is related to, in particular to automatic tuningout base of oil field wellhead assembly.

Background

In the process of exploitation of an oil field, a wellhead device plays a role in positioning and sealing a well rod, an offset adjusting base and the well rod are theoretically located on the same axis, in the actual operation process, shaft offset of different degrees can be generated between the well rod and the base inevitably, the offset distance of the offset is larger when the length of the well rod is longer due to slight angle offset, the base is usually fixed when the inclination angle of the well rod is too large, the contact surface of the base and the base is easy to wear, the sealing performance is reduced, the production efficiency of the oil field is reduced due to frequent replacement of the base and the well rod, and the production cost is increased.

Disclosure of Invention

The utility model aims at providing an above-mentioned problem to exist among the prior art, provide one kind and can the automatic tuningout base of oil field wellhead assembly well pole of automatically regulated seal clearance after well pole and well head slope.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides an automatic tuningout base of oil field wellhead assembly, includes connector, clamping ring and universal head, the well pole from universal head center pass and rather than sealed cooperation, the clamping ring set up in connector top and cooperation fixed, its characterized in that, the bottom of universal head be located the clamping ring and with the connector between be provided with the universal cover, the outer lane cover of universal head and universal cover is equipped with the seal cover, the bottom of universal head is the spherical structure tilt up setting and the contact surface of universal cover and seal cover all cooperates with this slope structure, the bottom top of universal head is seted up and is spherical structure's seal groove and card and be equipped with matched with sealing washer one, the top of universal cover is seted up and is spherical structure's seal groove and card and is equipped with matched with sealing washer two.

The automatic deviation adjusting base of the oilfield wellhead device has the technical effects that: when the well rod and the wellhead device incline, the universal head automatically and synchronously inclines, the well rod and the wellhead device are in the same axis position, the ascending side of the bottom of the universal head and the pressure of the sealing sleeve are increased, the descending side of the bottom of the universal head and the pressure of the universal sleeve are increased, and the sealing rings of the contact surfaces are all designed into spherical surface structures, so that the contact surfaces still can keep good sealing performance in the gradual inclining process.

In the automatic deviation-adjusting base of the oil field wellhead device, a sealing groove is formed in the contact surface of the universal sleeve and the connector, and a third sealing ring is clamped on the contact surface of the universal sleeve and the connector.

Compared with the prior art, the automatic deviation adjusting base of the oilfield wellhead device has the advantages that the universal head and the well rod are synchronously inclined, the contact surface and the sealing ring are designed into a spherical surface structure, the sealing performance between the base and the well rod is greatly improved, the problem of acceleration of abrasion caused by inclination of the well rod is solved, and the automatic deviation adjusting base has longer service life.

Drawings

FIG. 1 is a cross-sectional view of the present deflection pedestal.

Fig. 2 is a schematic view of the structure of the well shaft of fig. 1 in an inclined state.

Fig. 3 is an exploded view of the present deflection-compensated base.

In the figure, 1, a connector; 2. a fastening ring; 3. a universal head; 4. a well rod; 5. a universal sleeve; 6. sealing sleeves; 7. a first sealing ring; 8. a second sealing ring; 9. and a third sealing ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, fig. 2, fig. 3, this automatic deviation-adjusting base of oil field wellhead assembly, including connector 1, clamping ring 2 and universal head 3, well pole 4 passes and rather than sealed cooperation from universal head 3 center, clamping ring 2 sets up in connector 1 top and cooperation fixed, universal head 3's bottom be located clamping ring 2 and with be provided with universal sleeve 5 between the connector 1, universal head 3 overlaps with universal sleeve 5's outer lane cover and is equipped with seal cover 6, universal head 3's bottom is the setting of spherical structure tilt up and universal sleeve 5 and seal cover 6's contact surface all cooperates with this slope structure, the seal groove that is spherical structure is seted up to universal head 3's bottom top and the card is equipped with matched with sealing washer one 7, the seal groove that is spherical structure is seted up to universal sleeve 5's top and the card is equipped with matched with sealing washer two 8.

In order to improve the sealing performance between the universal sleeve 5 and the connector 1, a sealing groove is formed in the contact surface between the universal sleeve 5 and the connector 1, and a third sealing ring 9 is clamped on the contact surface.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms coupling head 1, fastening ring 2, universal head 3, well rod 4, universal sleeve 5, sealing sleeve 6, sealing ring one 7, sealing ring two 8, sealing ring three 9, etc. are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims (2)

1. The utility model provides an automatic tuningout base of oil field wellhead assembly, includes connector (1), tight loop (2) and universal head (3), well pole (4) from universal head (3) center pass and rather than sealed cooperation, tight loop (2) set up in connector (1) top and cooperate fixedly, a serial communication port, the bottom of universal head (3) be located tight loop (2) and be provided with universal cover (5) between connector (1), the outer lane cover of universal head (3) and universal cover (5) is equipped with seal cover (6), the bottom of universal head (3) is the spherical structure tilt up setting and the contact surface of universal cover (5) and seal cover (6) all cooperates with this slope structure, the bottom top of universal head (3) is seted up and is the seal groove of structure and is blocked and is equipped with matched with sealing washer one (7), the top of universal cover (5) is seted up and is the seal groove that is spherical structure and is blocked and is equipped with matched with sealing washer two (2), (3) are passed from the center to the center of universal head, the bottom is 8).

2. The automatic deviation adjusting base of the oilfield wellhead device is characterized in that a sealing groove is formed in the contact surface of the universal sleeve (5) and the connector (1) and a sealing ring III (9) is clamped on the sealing groove.

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