CN212225182U

CN212225182U - Eccentric electric submersible pump integral production tree wellhead

Info

Publication number: CN212225182U
Application number: CN202020744353.3U
Authority: CN
Inventors: 孔德鹏; 吴炜; 梁萍
Original assignee: Jiangsu Yima Machinery Co ltd
Current assignee: Jiangsu Yima Machinery Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2020-12-25
Anticipated expiration: 2030-05-08

Abstract

The utility model belongs to the technical field of oil exploitation equipment, in particular to an integrated Christmas tree wellhead of an eccentric electric submersible pump, which comprises a pump body and a connector, wherein a first flange is arranged above the pump body, a fixing nut is arranged below a fixing screw, an oil delivery pipe is arranged above the first flange, a pump head is arranged on the left side above a vertical pipe, a second flange is arranged on the right side of the oil delivery pipe, a threaded rod is arranged inside a sealing ring, compared with the prior common Christmas tree wellhead device, the integrated Christmas tree wellhead of the eccentric electric submersible pump can sense pressure signals through the arrangement of a pressure sensor and a terminal control cabinet, and can convert the pressure signals into devices or devices of usable output electric signals according to a certain rule, and simultaneously, one or more sets of petroleum equipment can be controlled by utilizing the terminal control cabinet, greatly improving the exploitation efficiency and the exploitation quality of the petroleum.

Description

Eccentric electric submersible pump integral production tree wellhead

Technical Field

The utility model relates to an oil development equipment technical field specifically is the integral production tree well head of eccentric electric submersible pump.

Background

The Christmas tree is a wellhead device for exploiting petroleum such as a self-blowing well and a mechanical oil production well, is a main device for controlling and adjusting oil-gas production at the uppermost part of an oil-gas well, mainly comprises a casing head, a tubing head and a Christmas tree body, is mainly used for suspending a tubing string which is put into the well, sealing an annular space of the tubing casing, controlling and adjusting oil well production, ensuring operation, construction, recording oil and casing pressure data, testing, paraffin removal and other daily production management, and has the following main functions: the suspended oil pipe supports the weight of all oil pipe columns in the well; sealing an annular space between the oil pipe and the casing pipe; controlling and regulating production from the well; ensuring various underground operations; the well mouth control device is composed of a tubing hanger, a plurality of gates and a tee joint or a cross joint, is directly arranged on a casing head, and is called a single-wing Christmas tree with an oil outlet pipe on one side only; the two sides of the oil outlet pipe are provided with oil outlet pipes called a double-wing Christmas tree, the Christmas tree is provided with oil nozzles, and the oil nozzles with different inner diameters are replaced to control the yield of oil gas.

In the use process of the existing Christmas tree wellhead device, due to the special well body structure of the petroleum directional well, the application of the eccentric electric submersible pump to the directional well is limited, the normal exploitation and the exploitation efficiency of petroleum can not be well guaranteed, the use requirements of people can not be well met, and technical innovation is performed on the basis of the existing Christmas tree wellhead device aiming at the conditions.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an integral production tree well head of eccentric electric submersible pump to propose current production tree well head device in the use among the solution above-mentioned background art, because the special well body structure of the directional well of oil, eccentric electric submersible pump is applied to directional well and receives the restriction, and the exploitation of unable fine assurance oil normally goes on and exploitation efficiency, the not fine user demand problem of satisfying people.

In order to achieve the above object, the utility model provides a following technical scheme: the integrated Christmas tree wellhead of the eccentric electric submersible pump comprises a pump body and a connector, wherein a first flange is arranged above the pump body, fixing screws are arranged above the left side and the right side of the first flange, fixing nuts are arranged below the fixing screws, an oil delivery pipe is arranged above the first flange, a vertical pipe is arranged above the oil delivery pipe, a pump head is arranged on the left side above the vertical pipe, the oil delivery pipe is arranged on the right side of the pump body, a second flange is arranged on the right side of the oil delivery pipe, a sealing ring is arranged inside the second flange, a threaded rod is arranged inside the sealing ring, fixing nuts are arranged on the left side and the right side of the threaded rod, an oil outlet pipe is arranged on the right side of the second flange, a first valve is arranged at the front end of the oil outlet pipe, the connector is positioned on the right side of the oil outlet pipe, and a second valve is arranged, the pressure sensor is arranged above the second valve, the third valve is arranged on the right side of the connector, an oil outlet is formed in the right side of the third valve, the fourth valve is arranged below the connector, and the terminal control cabinet is arranged below the fourth valve.

Preferably, be swing joint between the pump body and the defeated oil pipe, and coincide between the axis of defeated oil pipe and the axis of riser mutually.

Preferably, the oil delivery pipe forms detachable construction through second flange and oil outlet pipe, and for the welding between defeated oil pipe and the pump head.

Preferably, be threaded connection between threaded rod and the fixation nut, and the threaded rod is the symmetric form and distributes in the left and right sides of second flange.

Preferably, the second flange is tightly attached to the sealing ring, and the central axis of the second flange coincides with the central axis of the sealing ring.

Preferably, be fixed connection between oil pipe and the connector, and coincide mutually between the axis of oil pipe and the axis of connector.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model has the advantages that the screw thread connection between the fixing screw and the nut is arranged on the connecting plate between the pump body and the oil inlet pipe through the arrangement of the fixing screw and the nut, so that the connection between the pump body and the oil inlet pipe is stable, the structure is simple, the design is reasonable, the use safety of the eccentric electric submersible pump is ensured, and the oil exploitation efficiency is indirectly improved;

2. the utility model has the advantages that the sealing ring, the threaded rod and the fixing nut are arranged, the sealing ring ensures good waterproof, dustproof, soundproof, heat-insulating and shock-absorbing effects at the joint, the internal connection of the Christmas tree well head device is firmer through the screwing and positioning between the fixing nut and the threaded rod, and meanwhile, the pipeline is better disassembled, maintained and maintained through the detachable structure formed between the second flanges;

3. the utility model discloses a pressure sensor and terminal control cabinet's setting, pressure sensor can experience pressure signal to can convert pressure signal to the device or the device of the signal of telecommunication of available output according to certain law, utilize the terminal control cabinet simultaneously, can control one set or several sets of petroleum equipment, improved the exploitation efficiency and the exploitation quality of oil greatly.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

fig. 3 is an enlarged schematic structural diagram of the point B in fig. 1 according to the present invention.

In the figure: 1. a pump body; 2. a first flange; 3. fixing screws; 4. a nut; 5. an oil inlet pipe; 6. a riser; 7. a pump head; 8. an oil delivery pipe; 9. a second flange; 10. a seal ring; 11. a threaded rod; 12. fixing a nut; 13. an oil outlet pipe; 14. a first valve; 15. a connector; 16. a second valve; 17. a pressure sensor; 18. a third valve; 19. an oil outlet; 20. a fourth valve; 21. terminal control cabinet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the integrated Christmas tree wellhead of the eccentric electric submersible pump comprises a pump body 1 and a connector 15, wherein a first flange 2 is arranged above the pump body 1, fixing screws 3 are arranged above the left side and the right side of the first flange 2, nuts 4 are arranged below the fixing screws 3, the fixing screws 3 and the nuts 4 are in threaded connection through the arrangement of the fixing screws 3 and the nuts 4 and are mounted on a connecting plate between the pump body 1 and an oil inlet pipe 5, so that the connection between the pump body 1 and the oil inlet pipe 5 is stable, the structure is simple, the design is reasonable, the use safety of the eccentric electric submersible pump is guaranteed, and the oil exploitation efficiency is indirectly improved;

an oil inlet pipe 5 is arranged above the first flange 2, a vertical pipe 6 is arranged above the oil delivery pipe 8, a pump head 7 is arranged on the left side of the upper portion of the vertical pipe 6, the oil delivery pipe 8 is arranged on the right side of the pump body 1, the pump body 1 is movably connected with the oil delivery pipe 8, the central axis of the oil delivery pipe 8 is coincided with the central axis of the vertical pipe 6, a second flange 9 is arranged on the right side of the oil delivery pipe 8, a sealing ring 10 is arranged inside the second flange 9, the second flange 9 is tightly attached to the sealing ring 10, the central axis of the second flange 9 is coincided with the central axis of the sealing ring 10, a threaded rod 11 is arranged inside the sealing ring 10, fixing nuts 12 are arranged on the left side and the right side of the threaded rod 11, the threaded rod 11 is in threaded connection with the fixing nuts 12, the threaded rod 11 is symmetrically distributed on the, The threaded rod 11 and the fixing nut 12 are arranged, the sealing ring 10 ensures good waterproof, dustproof, soundproof, heat-insulating and shock-absorbing effects at the joint, the internal connection of the Christmas tree wellhead device is firmer through the screwing and positioning between the fixing nut 12 and the threaded rod 11, and meanwhile, the pipeline is better disassembled, maintained and maintained through a detachable structure formed between the second flanges 9;

an oil outlet pipe 13 is arranged on the right side of the second flange 9, a first valve 14 is arranged at the front end of the oil outlet pipe 13, the oil pipe 8 and the oil outlet pipe 13 form a detachable structure through the second flange 9, the oil pipe 8 and the pump head 7 are welded, the connector 15 is arranged on the right side of the oil outlet pipe 13, a second valve 16 is arranged above the connector 15, the oil outlet pipe 13 and the connector 15 are fixedly connected, the central axis of the oil outlet pipe 13 and the central axis of the connector 15 are overlapped, a pressure sensor 17 is arranged above the second valve 16, a third valve 18 is arranged on the right side of the connector 15, an oil outlet 19 is arranged on the right side of the third valve 18, a fourth valve 20 is arranged below the connector 15, a terminal control cabinet 21 is arranged below the fourth valve 20, and the pressure sensor 17 and the terminal control cabinet 21 are arranged, so that the pressure sensor 17 can sense pressure signals, and can convert the pressure signal into the device or apparatus of the usable electric signal of output according to certain law, utilize the terminal control cabinet 21 at the same time, can control one or several sets of petroleum equipment, have greatly raised the exploitation efficiency and exploitation quality of the petroleum.

The working principle is as follows: when the integrated oil production tree wellhead of the eccentric electric submersible pump is used, the eccentric electric submersible pump is firstly installed to a position required to be used, then oil exploitation operation is started, a power supply is started, the eccentric electric submersible pump starts to work, exploited oil is conveyed to an oil inlet pipe 5 through a pump body 1 and then conveyed to an oil conveying pipe 8 through a vertical pipe 6, the oil conveying pipe 8 enters an oil outlet pipe 13 through a second flange 9, a sealing ring 10 on the second flange 9 ensures good waterproof, dustproof, soundproof, heat-insulating and shock-absorbing effects at the joint, the internal connection of the oil production tree wellhead device is firmer through screwing and positioning between a fixing nut 12 and a threaded rod 11, oil in the oil outlet pipe 13 flows out of an oil outlet 19 through a connector 15, oil utilization in the next link can be carried out, a pressure sensor 17 above the connecting piece can sense pressure signals and can convert the pressure signals into usable devices or devices for outputting electric signals according to a certain rule, the terminal control cabinet 21 below the connecting piece can control one or more sets of petroleum equipment, and greatly improves the petroleum exploitation efficiency and the oil exploitation quality, wherein the model of the pressure sensor 17 is SBT674-10N, which is the working principle of the integrated Christmas tree wellhead of the eccentric electric submersible pump.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Eccentric electric submersible pump integral production tree well head, including the pump body (1) and connector (15), its characterized in that: the improved pump is characterized in that a first flange (2) is arranged above the pump body (1), fixing screws (3) are arranged above the left side and the right side of the first flange (2), nuts (4) are arranged below the fixing screws (3), an oil inlet pipe (5) is arranged above the first flange (2), a vertical pipe (6) is arranged above the oil conveying pipe (8), a pump head (7) is arranged on the left side above the vertical pipe (6), the oil conveying pipe (8) is arranged on the right side of the pump body (1), a second flange (9) is arranged on the right side of the oil conveying pipe (8), a sealing ring (10) is arranged inside the second flange (9), a threaded rod (11) is arranged inside the sealing ring (10), fixing nuts (12) are arranged on the left side and the right side of the threaded rod (11), an oil outlet pipe (13) is arranged on the right side of the second flange (9), and the front end of an oil outlet pipe (13) is provided with a first valve (14), the connector (15) is positioned on the right side of the oil outlet pipe (13), a second valve (16) is arranged above the connector (15), a pressure sensor (17) is arranged above the second valve (16), a third valve (18) is arranged on the right side of the connector (15), an oil outlet (19) is arranged on the right side of the third valve (18), a fourth valve (20) is arranged below the connector (15), and a terminal control cabinet (21) is arranged below the fourth valve (20).

2. The eccentric electric submersible pump integrated christmas tree wellhead of claim 1, wherein: the pump body (1) is movably connected with the oil delivery pipe (8), and the central axis of the oil delivery pipe (8) is coincided with the central axis of the vertical pipe (6).

3. The eccentric electric submersible pump integrated christmas tree wellhead of claim 1, wherein: defeated oil pipe (8) constitute detachable construction through second flange (9) and oil pipe (13), and be the welding between defeated oil pipe (8) and pump head (7).

4. The eccentric electric submersible pump integrated christmas tree wellhead of claim 1, wherein: threaded connection is between threaded rod (11) and fixation nut (12), and threaded rod (11) are the symmetric form and distribute in the left and right sides of second flange (9).

5. The eccentric electric submersible pump integrated christmas tree wellhead of claim 1, wherein: the second flange (9) is tightly attached to the sealing ring (10), and the central axis of the second flange (9) coincides with the central axis of the sealing ring (10).

6. The eccentric electric submersible pump integrated christmas tree wellhead of claim 1, wherein: the oil outlet pipe (13) is fixedly connected with the connector (15), and the central axis of the oil outlet pipe (13) coincides with the central axis of the connector (15).