CN114592818B

CN114592818B - Oil well head suitable for desert environment

Info

Publication number: CN114592818B
Application number: CN202210167476.9A
Authority: CN
Inventors: 戴义明; 刘丽华; 陈志文; 刘大勇; 戴京; 戴兵; 孟庆武; 栾家宏; 皋师; 沈鹏
Original assignee: Jiangsu Tenglong Petrochemical Machinery Co ltd
Current assignee: Jiangsu Tenglong Petrochemical Machinery Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-12-02
Anticipated expiration: 2042-02-23
Also published as: CN114592818A

Abstract

The invention relates to a wellhead, in particular to a petroleum wellhead suitable for a desert environment. The lifting ring II is circumferentially and uniformly arranged at the upper end of the connecting shell, the cover body is detachably and fixedly connected to the ring platform, and the connecting part is integrally connected to the lower end of the cover body and is used for being in threaded connection in the ring platform; at least two openings are provided. The purpose utilizes many lid structures in order to satisfy the sand control demand that multi-pipe way was transferred.

Description

Oil well head suitable for desert environment

Technical Field

The invention relates to a wellhead, in particular to an oil wellhead suitable for a desert environment.

Background

The petroleum exploitation object continuously flows in the whole exploitation process, and the oil reservoir condition continuously changes; normally, the miners do not directly contact with ore bodies, but the external sand and stones enter the underground or the underground crude oil is sprayed out of the well mouth to cause pollution or waste. Therefore, for a wellhead which is lowered by multiple pipelines to easily enter sand and stones in a desert environment, the design of a single opening is cancelled.

Disclosure of Invention

The invention provides a petroleum wellhead suitable for a desert environment, and aims to meet the sand prevention requirement of multi-pipeline lowering.

The above purpose is realized by the following technical scheme:

a petroleum wellhead suitable for desert environment comprises a connecting shell with an opening at the upper end, a ring platform arranged at the upper end of the connecting shell and used for surrounding the opening, at least three circumferentially uniform hanging rings II arranged at the upper end of the connecting shell, a cover body detachably and fixedly connected on the ring platform, and a connecting part integrally connected at the lower end of the cover body and used for being in threaded connection in the ring platform; at least two openings are provided.

Drawings

FIG. 1 shows an overall structure of a petroleum wellhead adapted to a desert environment;

FIG. 2 shows a cross-sectional view of the overall structure;

FIG. 3 shows a bottom plate, an outer wall, an inner wall, a bottom ring, a top ring and an arc notch I;

fig. 4 to 8 show the internal structure of the coupling case and the hanging cover.

Detailed Description

An oil wellhead adapted to desert environment, as shown in fig. 6 and 7, comprises a connecting shell 31, a ring platform 32, a hanging ring II 33, a cover body 41 and a connecting part 42;

connecting shell 31 is the cover form framework of below open-ended, and the outward appearance is the column, and the upper end of connecting shell 31 is equipped with the opening, open-ended quantity is two at least, preferably three, and the upper end body coupling of connecting shell 31 has the ring platform 32 the same with opening quantity, and three ring platform 32 centers on three opening respectively, and the quantity of lid 41 is the same with ring platform 32, the integrative connecting portion 42 of lower extreme of every lid 41, three connecting portion 42 threaded connection is at the inner wall of three ring platform 32 respectively, and three lid 41 passes through the bolt can the detachable rigid coupling in order to realize sealed and open the open-ended on ring platform 32, connects the connecting piece of wellhead upper end about shell 31, and the opening is used for transferring the pipeline, and a plurality of pipelines can be transferred to a plurality of openings, and utilize lid 41 to seal when using at ordinary times to prevent that the lime-sand from getting into.

Further, the wellhead further comprises a flange 34 fixedly connected to the lower end of the connecting shell 31, so that the connecting shell 31 can be quickly disassembled and assembled.

Further, the cover body 41 is provided with at least three lifting rings III 43 which are uniformly arranged in the circumferential direction so as to assist an operator in lifting, mounting and dismounting.

As shown in fig. 1 to 3, the wellhead further comprises a bottom plate 11a, an outer wall 11b, an inner wall 12, a hanging cover 21 and a hanging ring i 22;

the outer wall 11b is integrally connected with an outer ring at the upper end of the bottom plate 11a, the inner wall 12 is preferably fixedly connected with an inner ring of the bottom plate 11a in a detachable connection mode, the hanging cover 21 is arranged at the upper end of the outer wall 11b, and the hanging ring I22 is provided with three and circumferentially uniform rings which are arranged at the upper end of the hanging cover 21;

wherein the bottom plate 11a, the outer wall 11b, the inner wall 12 and the hanging cover 21 have an oil storage effect.

Furthermore, the anchor rod further comprises a bottom ring 13 fixedly connected to the bottom of the outer wall 11b, and a reserved hole is formed in the bottom ring 13 and used for installing an anchor bolt.

Furthermore, the hanging device also comprises a counterweight part 23 fixedly connected with the upper end of the hanging cover 21 so as to increase the stability when the hanging cover 21 is hung on the outer wall 11b from top to bottom, and particularly, when a wellhead leaks, the hanging device can be smoothly arranged below the wellhead. During operation at ordinary times, the hanging cover 21 is hung beside the machine so as to be timely lowered as required.

Further, the device also comprises a top ring 14, a connecting ring 26, an arc notch I15 and an arc notch II 27;

top ring 14 rigid coupling is in the upper end of outer wall 11b outer wall, go-between 26 rigid coupling is at the lower extreme of hanging cover 21 outer wall, the even being equipped with of arc notch II 27 circumference is a plurality of on go-between 26, the even being equipped with of arc notch I15 circumference is a plurality of on top ring 14, wherein arc notch I15 can coincide with arc notch II 27, so that can in time utilize bolt and nut subassembly to pass arc notch I15 and arc notch II 27 and install after the hoist and mount decline of hanging cover 21, further consolidate, organize the blowout, this design has reduced the alignment demand, the quantity and the length of arc notch I15 and arc notch II 27 satisfy arbitrary week upwards rotate all have the coincidence position can.

The wellhead also comprises a column 24 fixedly connected to the upper end of the counterweight part 23, the column 24 is provided with arc openings 25, and the number and the positions of the column 24 correspond to those of the top ring 14 so as to support the mooring rope by using the arc openings 25.

As shown in fig. 2, 5 and 8, the wellhead further comprises a mounting column 51, a base i 52, a connecting rod 53, a straight notch 54, a riding wheel 55, a base 56, a mounting sleeve 61, a screw i 62, a screw ii 63, an adjusting seat 64, a limiting rod 65, a base ii 66, a bracket 67 and a shifting rod 68;

wherein, the mounting column 51 passes through and is fixedly connected to the middle part of the counterweight part 23 from top to bottom, the base i 52 is fixedly connected to the bottom of the mounting column 51 and located inside the connecting shell 31, the number of the connecting rods 53 is the same as the number of the openings, preferably, three connecting rods 53 are circumferentially and uniformly hinged to the base i 52, three connecting rods 53 face to three openings respectively, each connecting rod 53 is provided with a straight notch 54, the base 56 is fixedly connected to the upper end of the mounting column 51, the mounting sleeve 61 is fixedly connected to the upper end of the connecting shell 31, the bottom of the screw i 62 is rotatably connected to the mounting sleeve 61, the screw ii 63 is in threaded connection with the base 56, the screw ii 63 descends to be capable of abutting against the top of the screw i 62 to realize self-locking of the screw i 62, the adjusting seat 64 is in threaded connection with the screw i 62, the height of the adjusting seat 64 can be changed by rotating the screw i 62, the limiting rods 65 are at least provided with two and are fixedly connected to the lower end of the adjusting seat 64, the base ii 66 is fixedly connected to the lower end of the limiting rod 65, the bracket 67 is fixedly connected to the adjusting seat 64 and the same as the number of the connecting rods 53, the shifting rod 68, the number of the shifting rod 53 is corresponding to the shifting rod 53, the shifting rod 55, and the shifting rod 53 is inserted into the shifting rod 55; the limiting rod 65 is slidably connected to the connecting shell 31.

The adjusting seat 64 is lifted to drive the shift lever 68 to lift to drive the connecting rod 53 to expand or contract, the connecting rod 53 drives the riding wheel 55 to expand or contract, and the riding wheel 55 is used for supporting and pushing the pipelines placed in the opening, so that mutual impact caused by inclination among the pipelines is avoided.

The number of the riding wheels 55 on each connecting rod 53 is two, and the two riding wheels 55 are respectively positioned on two sides of the connecting rod 53 in the circumferential direction, so that the effect of righting and lowering the pipeline is achieved.

Claims

1. A petroleum wellhead suitable for desert environment comprises a connecting shell (31) with an opening at the upper end, a ring platform (32) arranged at the upper end of the connecting shell (31) and used for surrounding the opening, at least three circumferentially uniform lifting rings II (33) arranged at the upper end of the connecting shell (31), a cover body (41) detachably and fixedly connected to the ring platform (32), and a connecting part (42) integrally connected to the lower end of the cover body (41) and used for being in threaded connection with the ring platform (32); at least two openings are arranged;

also comprises a counterweight part (23) fixedly connected with the upper end of the hanging cover (21);

the lifting device is characterized by further comprising a mounting column (51) penetrating through and fixedly connected to the middle of the counterweight part (23), a base I (52) fixedly connected to the bottom of the mounting column (51) and located inside the connecting shell (31), three connecting rods (53) circumferentially and uniformly hinged to the base I (52), straight notches (54) formed in the connecting rods (53), a base (56) fixedly connected to the upper end of the mounting column (51), a mounting sleeve (61) fixedly connected to the upper end of the connecting shell (31), a screw I (62) rotatably connected to the mounting sleeve (61), screws II (63) rotatably connected to the base (56), an adjusting seat (64) in threaded connection with the screws I (62), at least two limiting rods (65) fixedly connected to the lower end of the adjusting seat (64), a base II (66) fixedly connected to the lower end of the limiting rods (65), supports (67) fixedly connected to the adjusting seat (64) and having the same number as the connecting rods (53), a shifting rod (65) fixedly connected to the supports (67) and a shifting rod (55) connected to the lower end of the supporting rods (67) and inserted and sliding in the corresponding straight notches (54); screw rod II (63) can support on screw rod I (62), gag lever post (65) sliding connection is on connecting shell (31).

2. A wellhead as claimed in claim 1, and further comprising a flange (34) secured to the lower end of the connection housing (31).

3. A wellhead as claimed in claim 1, and at least three circumferentially uniform lifting rings iii (43) provided at the upper end of the cover (41).

4. A wellhead according to any one of claims 1 to 3 and further comprising a base plate (11 a), an outer wall (11 b) fixedly connected to the outer ring of the base plate (11 a), an inner wall (12) fixedly connected to the inner ring of the base plate (11 a), a hanging cover (21) detachably fixedly connected to the upper end of the outer wall (11 b), and at least three circumferentially uniform hanging rings i (22) arranged at the upper end of the hanging cover (21), wherein the outer wall (11 b), the inner wall (12) and the hanging cover (21) are used for surrounding the connecting shell (31).

5. A wellhead according to claim 4 and further comprising a bottom ring (13) fixedly connected to the bottom of the outer wall (11 b), wherein a reserved hole is formed in the bottom ring (13).

6. A wellhead as claimed in claim 5, further comprising a top ring (14) fixedly connected to the upper end of the outer wall (11 b), an arc notch I (15) arranged on the top ring (14), a connecting ring (26) fixedly connected to the lower end of the outer wall of the hanging cover (21), and an arc notch II (27) arranged on the connecting ring (26), wherein the arc notch I (15) can coincide with the arc notch II (27).

7. A wellhead according to claim 6 and further comprising a column (24) fixedly connected to the upper end of the counterweight portion (23), the column (24) being provided with arc ports (25), the number and positions of the columns (24) corresponding to those of the top ring (14).

8. A wellhead as claimed in claim 7 in which the number of idler wheels (55) on each connecting rod (53) is two and two idler wheels (55) are located one on each side of the connecting rod (53) in the circumferential direction.