CN210460527U

CN210460527U - A connection device for oil well fracturing pipeline

Info

Publication number: CN210460527U
Application number: CN201921137770.5U
Authority: CN
Inventors: 张威娜; 杨江宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-07-19
Filing date: 2019-07-19
Publication date: 2020-05-05
Anticipated expiration: 2029-07-19

Abstract

The utility model relates to a connecting device for oil well fracturing pipelines, which comprises a connecting pipe, two connecting pipes are provided with sliding grooves, the inner wall of the sliding groove is provided with a rubber ring, the outer wall of the rubber ring is provided with a clamping groove, the outer wall of the connecting pipe is provided with a straight block, and the side of the straight block is provided with a straight block. The wall has a threaded rod, the connecting pipe is slidably connected with a fracturing pipe, the outer wall of the fracturing pipe has a bearing, the outer wall of the outer ring of the bearing is evenly provided with hanging lugs, and the hanging lugs are slidably connected with a threaded rod through the opening through holes, and the outer end of the threaded rod is threaded. A nut is connected, an annular insert block is fixedly connected to the side wall of the fracturing pipe, and the annular insert block is movably connected with the annular clamping groove. In the through hole, the nut is connected with the threaded rod. When the nut on the threaded rod is rotated, the nut pushes the hanging lug to move, the hanging lug moves to drive the bearing to move, the bearing drives the fracturing pipe to move, and the fracturing pipe drives the annular plug to be inserted into the clip. In the groove, it is convenient for the fracturing pipe to be fixedly connected to both ends of the connecting pipe.

Description

Connecting device for oil well fracturing pipeline

Technical Field

The utility model relates to an oil well fracturing manifold technical field in the oil field exploitation, concretely relates to connecting device of oil well fracturing pipeline.

Background

In the oilfield industry, fracturing stimulation of oil and gas fields is typically accomplished using fracturing tubulars. The hydraulic fracturing is a process of squeezing and injecting a fracturing fluid pumped by a ground fracturing pump into an oil-gas layer through a ground pipeline, a shaft and the like, and the flow of a ground high-pressure pipeline is a main channel for connecting the fracturing pump and the shaft. In the hydraulic fracturing construction process, the impact vibration of the pipeline in the fracturing construction process is severe due to the high pressure and the high flow speed of the fracturing fluid in the manifold, the ground pipeline layout scheme is complex, and the proportion of fracture accidents at the pipeline connection position is further increased. The layout mode of current pipeline need be to whole fracturing well site maintenance of shutting down when the pump breaks down in case, and because the well site is located remote area mostly, the current situations such as maintenance spare part scheduling difficulty lead to the maintenance cycle length, greatly reduced the equipment rate of utilization of whole well site.

The fracturing pipes are connected by adopting fracturing pipe joints, the connection between the fracturing pipes mainly adopts structures such as left-hand thread, hydraulic pressure, machinery and the like, and some new connecting devices are designed at present, but the connecting devices have some defects.

For example, chinese patent application No. CN201720997238.5 is a connection structure of oil well fracturing pipelines, which comprises: the device comprises a fracturing pipe to be connected, a sleeve, a connector and two rotary sleeves; the sleeve is a combined cylindrical sleeve with a large middle external diameter and small external diameter at two ends, the two ends with small external diameter of the sleeve are interfaces, and the interfaces are in threaded connection with the ends of the pipe sections; the two rotary sleeves are sleeved in the middle of the sleeve in parallel and can move towards two ends along the sleeve respectively, the two rotary sleeves move towards two ends of the sleeve to the end part of the fracturing pipe respectively through thread rotation, and part of the rotary sleeves are sleeved at the end part of the fracturing pipe to connect and fix the end part of the fracturing pipe with the middle of the sleeve; and a sealing element is arranged between the port of the fracturing pipe and the interface. The utility model discloses a connection structure makes fracturing pipe erection joint and dismantlement work simple quick change, and the fracturing union coupling is firm, and bearing pressure is big, and the sealed effect of junction is strengthened, is applicable to the connection installation of oil well fracturing pipeline more, but the pressure fracturing pipe must be rotated during connection structure installation and just can go on, operates inconveniently.

Based on this, the utility model designs a specifically be a connecting device of oil well fracturing pipeline to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an at least defect among the prior art is overcome to a main aim at, provides a connecting device of oil well fracturing pipeline to it is firm to play the fracturing union coupling though proposing in the above-mentioned background art to solve, and bearing pressure is big, and the sealed effect of junction is strengthened, is applicable to the connection installation of oil well fracturing pipeline more, but must rotate the fracturing pipe during connection structure installation and just can go on, operates inconvenient problem.

In order to realize the technical scheme, the utility model discloses a following technical scheme:

the utility model provides a connecting device of oil well fracturing pipeline, includes connecting pipe, straight piece, fracturing pipe, hangers, threaded rod, bearing, nut, annular inserted block and rubber circle, the spout has been seted up to connecting pipe both ends symmetry, spout inner wall fixedly connected with rubber circle, annular draw-in groove has been seted up to rubber circle outer wall, the straight piece of the even fixedly connected with of connecting pipe outer wall symmetry, straight piece lateral wall fixedly connected with threaded rod, the equal sliding connection of spout has the fracturing pipe at the connecting pipe both ends, equal fixedly connected with bearing on the fracturing pipe outer wall, the even fixedly connected with hangers of outer loop outer wall of bearing, the hangers has the threaded rod through the through-hole sliding connection who sets up, threaded rod outer end threaded connection has the nut, fracturing pipe lateral wall fixedly connected with annular inserted block, annular inserted block and annular draw-in groove swing joint.

Preferably, the straight blocks are provided with 3-5 groups.

Preferably, the thread of the threaded rod is an internal thread.

Preferably, the inner ring of the bearing is fixedly connected with the outer wall of the fracturing pipe.

Preferably, the rubber ring is made of wear-resistant and corrosion-resistant rubber materials, and the side wall of the fracturing pipe is in contact with the rubber ring in a fitting mode.

Preferably, the annular insertion block is connected with the annular clamping groove in an insertion manner.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses an in the spout of fracturing pipe injection connecting pipe, the threaded rod is in the through-hole of hangers, the nut is connected with the threaded rod, rotate the nut on the threaded rod, the nut promotes the hangers and removes, the hangers removes and drives the bearing and remove, the bearing drives the fracturing pipe and removes, the fracturing pipe drives annular inserted block and inserts in the draw-in groove, the fracturing pipe fixed connection of being convenient for is at the connecting pipe both ends, fracturing pipe and rubber circle outer wall laminating contact simultaneously, the leakproofness has been guaranteed, wherein, the bearing conveniently rotates on the fracturing pipe, the fracturing pipe need not to rotate in the installation, convenient in-service operation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the structure of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the connecting pipe 2, the straight block 3, the fracturing pipe 4, the hanging lug 5, the threaded rod 6, the bearing 7, the nut 8, the annular inserting block 9, the rubber ring 10, the sliding groove 11 and the clamping groove.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-2, the utility model provides a connecting device for oil well fracturing pipelines, which comprises a connecting pipe 1, a straight block 2, a fracturing pipe 3, a hanging lug 4, a threaded rod 5, a bearing 6, a nut 7, an annular insert block 8 and a rubber ring 9, wherein, two ends of the connecting pipe 1 are symmetrically provided with a chute 10, the inner wall of the chute 10 is fixedly connected with the rubber ring 9, the rubber ring 9 is made of wear-resistant and corrosion-resistant rubber material, the outer wall of the rubber ring 9 is provided with an annular clamping groove 11, the outer wall of the connecting pipe 1 is symmetrically and uniformly and fixedly connected with the straight block 2, the straight block 2 is provided with 3-5 groups, the side wall of the straight block 2 is fixedly connected with the threaded rod 5, the thread of the threaded rod 5 is an internal thread, the hanging lug 4 is convenient to slide, two ends of the connecting pipe 1 are both slidably connected with the fracturing pipe 3 through the chute 10, the side, the inner ring of the bearing 6 is fixedly connected with the outer wall of the fracturing pipe 3, the outer ring of the bearing 6 is uniformly and fixedly connected with lugs 4, the lugs 4 are slidably connected with threaded rods 5 through arranged through holes, the outer ends of the threaded rods 5 are in threaded connection with nuts 7, the side wall of the fracturing pipe 3 is fixedly connected with annular insertion blocks 8, the annular insertion blocks 8 are movably connected with annular clamping grooves 11, the annular insertion blocks 8 are connected with the annular clamping grooves 11 in an insertion mode, the fracturing pipe 3 is inserted into a sliding groove 10 of the connecting pipe 1, the threaded rods 5 are arranged in the through holes of the lugs 4, the nuts 7 are connected with the threaded rods 5, the nuts 7 on the threaded rods 5 are rotated, the nuts 7 push the lugs 4 to move, the lugs 4 move to drive the bearing 6 to move, the bearing 6 drives the fracturing pipe 3 to move, the fracturing pipe 3 drives the annular insertion blocks 11 to be inserted into the clamping grooves 11, so that the fracturing, the bearing 6 is convenient to rotate on the fracturing pipe 3, the fracturing pipe 3 does not need to rotate in the installation process, and actual operation is facilitated.

One specific application of this embodiment is: inject into the spout 10 of connecting pipe 1 through fracturing pipe 3 in, threaded rod 5 is in the through-hole of hangers 4, nut 7 is connected with threaded rod 5, rotate nut 7 on the threaded rod 5, nut 7 promotes hangers 4 and removes, hangers 4 remove and drive bearing 6 and remove, bearing 6 drives fracturing pipe 3 and removes, fracturing pipe 3 drives annular inserted block 11 and inserts in annular draw-in groove 11, be convenient for fracturing pipe 3 fixed connection is at 1 both ends of connecting pipe, fracturing pipe 3 and the laminating contact of 9 outer walls of rubber ring simultaneously, the leakproofness has been guaranteed, wherein, bearing 6 conveniently rotates on fracturing pipe 1, fracturing pipe 3 need not to rotate in the installation, time saving and labor saving, convenient actual operation.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. a connection device for oil well fracturing pipeline, comprising connecting pipe, straight block, fracturing pipe, hanging lug, threaded rod, bearing, nut, annular insert block and rubber ring, it is characterized in that: the connecting pipe two The end is symmetrically provided with a chute, the inner wall of the chute is fixedly connected with a rubber ring, the outer wall of the rubber ring is provided with an annular clamping groove, the outer wall of the connecting pipe is symmetrically and uniformly connected with a straight block, and the side wall of the straight block is fixed A threaded rod is connected, both ends of the connecting pipe are slidably connected to a fracturing pipe through a chute, a bearing is fixedly connected to the outer wall of the fracturing pipe, and the outer wall of the outer ring of the bearing is evenly and fixedly connected with hanging lugs, so The hanging lug is slidably connected with a threaded rod through the opened through hole, the outer end of the threaded rod is threadedly connected with a nut, the side wall of the fracturing pipe is fixedly connected with an annular insert block, and the annular insert block is connected to the annular slot. Active connection.

2 . The connecting device for oil well fracturing pipelines according to claim 1 , wherein the straight blocks are provided with 3-5 groups. 3 .

3 . The connecting device for oil well fracturing pipeline according to claim 1 , wherein the thread of the threaded rod is an internal thread. 4 .

4 . The connecting device for oil well fracturing pipeline according to claim 1 , wherein the inner ring of the bearing is fixedly connected to the outer wall of the fracturing pipe. 5 .

5 . The connecting device for oil well fracturing pipeline according to claim 1 , wherein the rubber ring is made of wear-resistant and corrosion-resistant rubber material, and the side wall of the fracturing pipe is in contact with the rubber ring. 6 . .

6 . The connection device for oil well fracturing pipeline according to claim 1 , wherein the connection between the annular insert block and the annular slot is plug connection. 7 .