CN213980762U

CN213980762U - Gas production tree

Info

Publication number: CN213980762U
Application number: CN202022469016.0U
Authority: CN
Inventors: 郑道明; 贺绍华; 徐武举; 张晓捷; 李晔旻; 贾光亮; 黄珏; 赵巍巍
Original assignee: Sinopec Oilfield Service Corp; Sinopec North China Petroleum Engineering Corp
Current assignee: Sinopec Oilfield Service Corp; Sinopec North China Petroleum Engineering Corp
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-08-17
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a gas production tree, which comprises a main road, a gate arranged at the top end, a branch road connected with the main road, the pneumatic membrane valve is used for controlling the opening and closing of the gas well, the liquid storage tank is used for collecting moisture in high-pressure gas supplied to the pneumatic membrane valve, the wellhead blowout prevention pipe is arranged on a flange of the gate at the uppermost end of the main path, the main path further comprises a multi-way flange, the plunger controller and/or the pressure-bearing pipeline communicated with the liquid storage tank are/is arranged on the multi-way flange and positioned at the lower side of the gas production tree through the mounting interface, so that the convenience of mounting and maintenance operation is improved, meanwhile, the concentrated installation of the lines at the top end gate of the gas production tree can be avoided, and the complexity of the lines caused by the concentrated arrangement of the corresponding lines is avoided.

Description

Gas production tree

Technical Field

The utility model relates to a gas production tree.

Background

The intelligent plunger gas lift water drainage gas production process is formed by combining an intelligent device and an automatic device on the basis of the traditional plunger water drainage gas production process, and can achieve the purposes of realizing fine management, improving economic benefits, and reducing operation risks and labor intensity. The gas production equipment for implementing the process mainly comprises a wellhead blowout prevention pipe, a plunger controller, a pneumatic membrane valve, a liquid storage tank, a pressure reducing valve and the like.

The wellhead blowout prevention pipe is installed at a gate at the top end of a gas production tree through a flange structure of the wellhead blowout prevention pipe, the plunger controller is a brain body which realizes intelligence and automation for the whole device, each sensor, a remote transmission system and a control valve of the intelligent gas production device are connected with the plunger controller through signal lines, and meanwhile, the plunger controller is internally provided with a pressure sensor and is communicated with a gas well through a pressure-bearing pipeline. The pneumatic membrane valve is used for controlling the opening and closing of a gas well, power of the pneumatic membrane valve is from high pressure in the gas well, specifically, high-pressure gas in the gas well is collected through the pressure-bearing pipeline, collected high-pressure gas passes through the liquid storage tank, water contained in the high-pressure gas is condensed into liquid in the liquid storage tank and stored in the liquid storage tank, and then the liquid is reduced in pressure through the pressure reducing valve to control the opening and closing of the pneumatic membrane valve.

During specific installation, the wellhead blowout prevention pipe is installed on a gate flange at the top end of a gas production tree, the height of the gas production tree is generally more than two meters, and the wellhead blowout prevention pipe is used as an installation base body for installing a plunger controller, a pneumatic membrane valve, a liquid storage tank, a pressure reducing valve and the like on the wellhead blowout prevention pipe. Regarding the structure of the gas production tree, for example, the gas production tree of the gas well disclosed in the chinese patent with the publication number of CN103015949B and publication date of 2017, 05 and 24 is provided with a main path extending in the up-down direction and a plurality of branches communicated with the main path, the main path and the branches are provided with corresponding gates, the gate at the highest position of the gas production tree is positioned at the upper end of the main path, because the wellhead blowout prevention pipe is installed on the gate at the uppermost end of the gas production tree, the position of the intelligent gas production equipment is higher, and the installation and maintenance operations of the gas production tree are inconvenient because the installation and maintenance of the wellhead blowout prevention pipe are required to be lifted, and in addition, each component of the intelligent control equipment is integrally and intensively installed on the wellhead blowout prevention pipe, the number of signal lines and pressure-bearing pipelines for connecting each device is large, the line is complicated, the later maintenance of the gas production tree is difficult, and the field management is not changed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gas production tree to solve among the prior art gas production tree because of the whole concentrated installation of intelligent control equipment at the inconvenient technical problem of gas production tree installation, maintenance and management that the highest gate department leads to.

The utility model discloses a gas production tree adopts following technical scheme:

the utility model provides a gas production tree, including the main road, the top has the gate, the branch road links to each other with the main road, and be located the main road below the gate of top, the plunger controller, pneumatic film valve is used for controlling the gas well switching, the liquid storage pot is used for collecting the moisture in the high-pressure gas who supplies with pneumatic film valve, well head lubricator is installed on the flange of the gate of main road top, still include the flange that leads to, install on the flange of gate on the branch road through the flange plate seal, be provided with the installation interface with the centre bore intercommunication of flange plate on the outer peripheral face of flange plate, plunger controller and/or install on the flange that leads to more through the installation interface with the pressure-bearing pipeline of liquid storage pot intercommunication.

The beneficial effects are that: set up the installation interface on the ring flange of leading to the flange more, make to have the bearing line's that is used for installing plunger controller and/or communicates with the liquid storage pot mounting structure on the branch road of gas production tree lower extreme, so, install plunger controller and/or the bearing line who communicates with the liquid storage pot on the branch road of gas production tree, be convenient for operating personnel to the installation and the maintenance of plunger controller and/or the bearing line who communicates with the liquid storage pot, meanwhile, plunger controller and/or install on the branch road of gas production tree with the bearing line of liquid storage pot intercommunication, the gate department is installed on main road to the well head lubricator, can avoid the circuit to arrange in a centralized way and lead to the circuit complicated.

Furthermore, a radially extending connecting pipe is fixed on the outer peripheral surface of the flange, and the overhanging end of the connecting pipe forms the mounting interface.

The beneficial effects are that: the installation interface is enabled to be outwards suspended relative to the flange plate, and installation operation of an operator on the installation interface is facilitated.

Further, the overhanging end of the connecting pipe is a threaded section with external threads.

The beneficial effects are that: when the plunger controller and/or the pressure-bearing pipeline communicated with the liquid storage tank are/is installed, the plunger controller and/or the pressure-bearing pipeline communicated with the liquid storage tank can be directly installed on the installation interface in a threaded mode.

Furthermore, the plunger controller and a pressure-bearing pipeline communicated with the liquid storage tank are both installed on the flange plate through the installation interface.

The beneficial effects are that: the plunger controller and the pressure-bearing pipeline communicated with the liquid storage tank are arranged on a branch of the gas production tree, so that the plunger controller and the pressure-bearing pipeline communicated with the liquid storage tank can be conveniently installed and maintained.

Furthermore, a pressure-bearing pipeline communicated with the liquid storage tank is installed on the flange plate through an installation interface, and a liquid storage tank installation structure is further arranged on the outer peripheral surface of the flange plate.

The beneficial effects are that: the liquid storage tank is arranged on a branch of the gas production tree, so that the operator can drain the liquid storage tank regularly.

Further, the liquid storage tank mounting structure is a mounting lug arranged on the circumferential surface of the flange plate, a bolt through hole matched with a bolt mounting hole in the liquid storage tank is formed in the mounting lug, and the liquid storage tank is fixed on the multi-way flange by penetrating and mounting a bolt in the bolt through hole.

The beneficial effects are that: the installation of the liquid storage tank on the flange plate is simply and conveniently realized.

Further, the plunger controller is installed on the multi-way flange through the installation interface.

The beneficial effects are that: the plunger controller is arranged on a branch of the gas production tree, so that the plunger controller is convenient to operate.

Furthermore, the plunger controller and a pressure-bearing pipeline communicated with the liquid storage tank are installed on the flange plate through installation interfaces, liquid storage tank installation structures are further arranged on the outer peripheral surface of the flange plate, and the installation interfaces and the liquid storage tank installation structures are sequentially distributed on the outer peripheral surface of the flange plate along the circumferential direction of the flange plate at 90-degree included angles.

The beneficial effects are that: the installation positions of the plunger controller and the liquid storage tank are prevented from being excessively concentrated, so that the connecting pipeline is more sparse, and later-stage maintenance and management are facilitated.

Further, the mounting structure for mounting the flange plate on the flange of the gate is a bolt through hole formed in the flange plate, and the bolt through hole corresponds to a bolt connecting hole in the gate flange on the gas production tree branch.

The beneficial effects are that: the mounting structure is arranged into the bolt through hole, so that the mounting structure is simple and convenient to arrange.

Drawings

FIG. 1 is a schematic structural diagram of a main path and a lower branch of a middle gas production tree according to the present invention;

FIG. 2 is a top view of a multi-way flange of a gas tree of the present invention;

FIG. 3 is a front view of a multi-way flange of the middle gas tree of the present invention;

the names of the components corresponding to the corresponding reference numerals in the drawings are:

1-a central hole; 2-radial holes; 3-connecting pipe; 4-bolt through hole; 5, mounting lugs; 6-a flange plate; 7-main path; 8-branch; 9-plunger controller; 10-a liquid storage tank; no. 11-5 gate; no. 12-2 gate; no. 13-3 gate; 14-6 gate; no. 15-1 gate; a No. 16-4 gate; no. 17-7 gate; 18-wellhead lubricator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

It is noted that relational terms such as the terms first and second, and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the recitation of "comprising an … …" may occur without the exclusion of additional like elements present in the process, method, article, or apparatus that comprises the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be a detachable connection or a non-detachable connection. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from the specific situation.

The present invention will be described in further detail with reference to examples.

The utility model provides a gas production tree embodiment 1:

in this embodiment, the gas production tree with the seventh gate is taken as an example to introduce the structure of the gas production tree in the present invention. As shown in fig. 1, the gas production tree has a main path 7 and a branch path 8 communicating with the main path 7, and generally, the branch paths are provided at both upper and lower ends of the main path 7. For the gas production tree with the seventh gate, according to the naming rule of the gas production tree gate in the field, the gates on the main path 7 of the gas production tree are the gate 15 No. 1, the gate 16 No. 4 and the gate 17 No. 7 from bottom to top, the gates on the branch path 8 at the lower end of the main path 7 are the gate 11 No. 5, the gate 12 No. 2, the gate 13 No. 3 and the gate 14 No. 6 from left to right, each gate is provided with a flange structure, wherein the gate No. 7 is positioned at the uppermost end of the main path and is the gate at the highest position of the gas production tree, the wellhead blowout preventer 18 is arranged at the gate No. 7 by matching the flange structure of the wellhead blowout preventer 18 with the flange structure at the gate No. 7, and the pneumatic film valve is arranged on the wellhead blowout preventer 18 (not shown in the figure).

The utility model discloses be provided with on well gas production tree and lead to the flange more, its structure is shown in fig. 2, leads to the flange more and includes ring flange 6, and centre bore 1 has been seted up at ring flange 6 middle part, and centre bore 1 is the through-hole, and after leading to the flange to install on gas production tree more, centre bore 1 and gas production tree inner chamber intercommunication. Still have radial hole 2 on the ring flange, radial hole 2 and centre bore 1 intercommunication, and the gas outlet is located the global of ring flange, in this embodiment, radial hole is provided with two, the gas outlet that corresponds each radial hole 2 is fixed connection pipe 3 on the outer peripheral face of ring flange, the one end of connecting pipe 3 back to radial hole 2 is the screw thread section that has the external screw thread, the screw thread section constitutes the installation interface of leading to the flange more, one is used for connecting plunger controller 9, one is used for connecting the pressure-bearing pipeline who is used for with the liquid storage pot intercommunication. The radial holes 2 are communicated with the central hole 1 to form a communicating hole for communicating the inner cavity of the gas production tree with a corresponding mounting interface, and further communicating the plunger controller and a pressure-bearing pipeline for communicating with the liquid storage tank 10 with the gas production tree.

In this embodiment, the mounting structure on the flange plate is the bolt through hole 4 provided on the flange plate, and the bolt through hole 4 corresponds to the bolt connecting hole of the gate flange on the lower side branch of the gas production tree, so that the flange plate 6 can be mounted at the gate on the lower side branch of the gas production tree by using the bolt and nut assembly.

In order to facilitate the installation of the liquid storage tank 10 and the pressure reducing valve, a liquid storage tank installation structure is further arranged on the flange plate, in the embodiment, as shown in fig. 3, the liquid storage tank installation structure is an installation lug 5 arranged on the outer peripheral surface of the flange plate, a bolt through hole is formed in the installation lug 5 and used for being matched with a bolt connecting hole in the liquid storage tank, so that an operator can install the integrally arranged liquid storage tank and the pressure reducing valve on the flange plate through a bolt and nut assembly.

In this embodiment, the two connecting pipes 3 and the mounting lugs 5 are sequentially arranged on the outer peripheral surface of the flange plate at 90 ° included angles between the adjacent two centers around the center of the circle where the outer peripheral surface of the flange plate is located. The thickness of the flange plate is 5cm, the radial distance from each bolt through hole 4 to the center of the flange is 9cm, and the bolts used for mounting the flange plate are bolts with the diameter of phi 16 mm. In other embodiments, the sizes of the flanges can be adjusted adaptively according to the actual application.

Here, it is right to use as an example the flange mounting that will lead to more at No. 5 gates 11 the utility model provides a gas production tree introduces, it is concrete, during the installation, the flank flange of gas production tree No. 5 gates departments is torn down, align the bolt through hole 4 of ring flange with the bolted connection hole of the flange structure of No. 5 gates departments, then paste the opposite side at the ring flange with the flank flange, utilize the bolt and nut subassembly with the flank flange, the ring flange, gate department flange structure three is fixed, realize the installation of ring flange on gas production tree, simultaneously, utilize the flank flange to carry out the shutoff to the drill way of the centre bore of ring flange. Then the plunger controller 9 and a pressure-bearing pipeline for communicating with the liquid outlet tank are arranged on the corresponding connecting pipe 3, the integrated liquid storage tank and the pressure reducing valve are arranged on the mounting structure of the liquid storage tank, and most of all parts of the intelligent gas production equipment are communicated by signal lines and the pressure-bearing pipeline. Therefore, the installation positions of the plunger controller, the liquid storage tank and the pressure reducing valve can be reduced to about fifty centimeters away from the ground from more than two meters of the original position of the No. 7 gate. In other embodiments, the multi-way flange can also be installed at gate No. 2, 3 or 6. Of course, the gas collecting tree can be installed on a branch of the gas collecting tree located at the upper end of the main road, and the installation position of the component can be lowered to a certain extent.

Through installing the flange that leads to on the branch road of gas production tree downside, make gas production tree downside have on the branch road and be used for installing plunger controller, a mounting structure for bearing line and liquid storage pot with the liquid storage pot intercommunication, so can be with plunger controller, liquid storage pot and relief pressure valve are installed in the lower position of gas production tree, make operating personnel need not to ascend a height and can realize plunger controller, liquid storage pot and relief pressure valve are at the installation of gas production tree, and simultaneously, avoid that each part of intelligent gas production equipment is whole to concentrate on No. 7 gates departments, thereby avoid the centralized arrangement of signal line and bearing line to lead to the circuit complicated and be not convenient for later maintenance and field management.

The utility model provides a gas production tree's embodiment 2, this embodiment and embodiment 1's difference lie in, in embodiment 1, be provided with the installation interface that is used for installing the plunger controller on the ring flange and be used for installing the bearing line's that communicates with the liquid storage pot installation interface, in this embodiment, only set up the installation interface that is used for installing the plunger controller on the ring flange, of course, in other embodiments, the installation interface can only be used for the bearing line installation interface with the liquid storage pot intercommunication for being used for installing.

The utility model provides a gas production tree's embodiment 3, this embodiment and embodiment 1's difference lie in that, the installation interface among embodiment 1 comprises the one end of fixing the connecting pipe on the ring flange outer peripheral face, and in this embodiment, the installation interface is for offering the hole that has the internal thread on the ring flange outer peripheral face.

The utility model provides a gas production tree's embodiment 4, this embodiment and embodiment 1's difference lie in that, and liquid storage pot mounting structure is the installation ear in embodiment 1, and in this embodiment, liquid storage pot mounting structure is for setting up the couple on the flange outer peripheral face, and during the installation liquid storage pot, directly hang the liquid storage pot the dress on the couple can.

The utility model provides a gas production tree's embodiment 5, this embodiment and embodiment 1's difference lie in, and in embodiment 1, the mounting structure on the ring flange is the bolt clearing hole, and in this embodiment, the mounting structure on the ring flange is for penetrating the U type groove of flange plate thickness.

The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.

Claims

1. A gas production tree comprising:

a main road with a gate at the top end;

the branch circuit is connected with the main circuit and is positioned below the uppermost gate of the main circuit;

a plunger controller;

the pneumatic membrane valve is used for controlling the opening and closing of the gas well;

the liquid storage tank is used for collecting moisture in the high-pressure gas supplied to the pneumatic membrane valve;

the wellhead blowout prevention pipe is arranged on a flange of the gate at the uppermost end of the main road;

it is characterized by also comprising:

the multi-way flange is hermetically arranged on the flange of the gate on the branch road through a flange plate, and the peripheral surface of the flange plate is provided with an installation interface communicated with the central hole of the flange plate;

the plunger controller and/or a pressure-bearing pipeline communicated with the liquid storage tank are/is arranged on the multi-way flange through the mounting interface.

2. A gas tree as claimed in claim 1 wherein the flange has a radially extending connecting tube secured to its outer periphery, the overhanging end of the connecting tube defining the mounting interface.

3. The gas tree of claim 2 wherein the overhanging end of the coupling tube is a threaded segment having external threads.

4. A gas tree as claimed in any one of claims 1 to 3 wherein the plunger controller and the pressure-bearing line communicating with the reservoir are mounted on the flange via mounting ports.

5. A gas tree as claimed in any one of claims 1 to 3 wherein the pressure-bearing line communicating with the reservoir is mounted on the flange via a mounting interface, the flange being further provided on its peripheral surface with reservoir mounting formations.

6. The gas production tree as claimed in claim 5, wherein the mounting structure of the liquid storage tank is a mounting lug arranged on the circumferential surface of the flange plate, the mounting lug is provided with a bolt through hole matched with a bolt mounting hole on the liquid storage tank, and the liquid storage tank is fixed on the multi-way flange by penetrating and installing a bolt in the bolt through hole.

7. A gas tree as claimed in any one of claims 1 to 3 wherein the plunger controller is mounted on the manifold flange via a mounting interface.

8. The gas production tree as claimed in claim 7, wherein the plunger controller and the pressure-bearing line communicating with the reservoir are mounted on the flange via mounting ports, and reservoir mounting structures are further provided on the outer peripheral surface of the flange, and the mounting ports and the reservoir mounting structures are sequentially arranged on the outer peripheral surface of the flange along the circumferential direction of the flange at 90 ° angles.

9. A gas tree as claimed in any one of claims 1 to 3 wherein the mounting means for mounting the flange to the flange on the gate are bolt passing holes formed in the flange which correspond to bolt connecting holes in the gate flange on the gas tree branch.