CN210829178U

CN210829178U - Novel oil well interface device with exhaust valve

Info

Publication number: CN210829178U
Application number: CN201921591242.7U
Authority: CN
Inventors: 马喜林; 韩铁龙
Original assignee: Jianghan Oil Field Xingya Industrial And Mineral Fitting Qianjiang Co ltd
Current assignee: Jianghan Oil Field Xingya Industrial And Mineral Fitting Qianjiang Co ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-06-23
Anticipated expiration: 2029-09-23

Abstract

The embodiment of the utility model discloses take discharge valve's novel oil well interface device, include: the sleeve pipe, defeated oil pipe, connect hoop formula cover gas discharge valve, play oil pipe and first outlet duct, connect hoop formula cover gas discharge valve include the body and set up the check valve of outside-in on the body, and defeated oil pipe and connect hoop formula cover gas discharge valve place in the sleeve in, connect the defeated oil pipe of interface intercommunication under the hoop formula cover gas discharge valve, go up the defeated oil pipe lower extreme of interface intercommunication, defeated oil pipe upper end extends to the cover outside of the pipe, and defeated oil pipe is fed through to first outlet duct. The novel oil well interface device with the exhaust valve of the utility model utilizes the connecting hoop type sleeve gas exhaust valve to lead the gas in the sleeve into the oil transportation pipe, heats the gas by utilizing the heat of the crude oil in the oil transportation pipe, separates the gas into the external gas treatment device, and avoids the icing phenomenon of the outlet pipe; the antifreezing property is improved under the condition of not adding extra heat-preserving and heating equipment, and the equipment cost and the use cost are reduced.

Description

Novel oil well interface device with exhaust valve

Technical Field

The utility model relates to an oil development equipment technical field especially relates to a take discharge valve's novel oil well interface device.

Background

In the field of oil extraction, an oil pipe for extracting oil from the ground is provided in a casing, which plays a role in protecting the oil pipe and discharging underground gas. Since the gas pressure of the gas in the casing is higher than the atmospheric pressure, the gas pressure is gradually reduced to one atmospheric pressure when the gas is conveyed into the gas processing apparatus through the casing, and the external heat needs to be absorbed in the process. This part of the structure is usually located above the bottom surface, and when the outside air temperature is low, the part of the pipeline is often frozen. In order to improve the anti-freezing capability, a heat preservation heating device is usually arranged to heat the anti-freezing device, so that the manufacturing cost and the use cost are high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned technique not enough, provide a take discharge valve's novel oil well interface device, solve among the prior art in order to avoid the oil well to extract gaseous equipment freezing, set up heat preservation firing equipment, lead to manufacturing cost and the higher technical problem of use cost.

In order to achieve the technical purpose, the embodiment of the utility model provides a take discharge valve's novel oil well interface arrangement is provided, this take discharge valve's novel oil well interface arrangement includes: the sleeve pipe, defeated oil pipe, connect hoop formula cover gas discharge valve, play oil pipe and first outlet duct, connect hoop formula cover gas discharge valve include the body and set up the check valve of outside-in on the body, and defeated oil pipe and connect hoop formula cover gas discharge valve place in the sleeve in, connect the defeated oil pipe of interface intercommunication under the hoop formula cover gas discharge valve, go up the defeated oil pipe lower extreme of interface intercommunication, defeated oil pipe upper end extends to the cover outside of the pipe, and defeated oil pipe is fed through to first outlet duct.

Compared with the prior art, the utility model discloses following beneficial effect has: the novel oil well interface device with the exhaust valve of the utility model utilizes the connecting hoop type sleeve gas exhaust valve to lead the gas in the sleeve into the oil transportation pipe, heats the gas by utilizing the heat of the crude oil in the oil transportation pipe, separates the gas into the external gas treatment device, and avoids the icing phenomenon of the outlet pipe; the antifreezing property is improved under the condition of not adding extra heat-preserving and heating equipment, and the equipment cost and the use cost are reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of a novel oil well interface device with an exhaust valve provided by the present invention;

fig. 2 is a cross-sectional view of the cuff-type sleeve air/vent valve of fig. 1.

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 merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an embodiment of a novel oil well interface device with an exhaust valve according to the present invention; fig. 2 is a cross-sectional view of the cuff-type sleeve air/vent valve of fig. 1.

A take novel oil well interface device of discharge valve includes: the gas-liquid separation device comprises a sleeve 1, an oil conveying pipe 2, a hoop type sleeve gas exhaust valve 3, an oil outlet pipe 4, a first air outlet pipe 5, a second air outlet pipe 6, a valve 7 and a pressure gauge 8.

The lower end of the casing 1 extends into an underground oil field, and the upper end of the casing is hermetically connected with an oil storage tank 4. The oil delivery pipe 2 is arranged in the casing 1, and the lower end of the oil delivery pipe extends into an underground oil field for extracting oil. The lower interface of the coupling type sleeve gas exhaust valve 3 is communicated with the upper end of the oil delivery pipe 2, and the upper interface is communicated with the oil outlet pipe 4. And the hoop-type sleeve gas exhaust valve 3 is arranged below the ground level. The oil outlet pipe 4 extends to the outside of the casing 1 and communicates with an external oil collecting device. One end of the first air outlet pipe 5 is communicated with the oil outlet pipe 4, and the other end is communicated with an external gas treatment device. A valve 7 is arranged on the first air outlet pipe 5.

The hoop-type sleeve gas and gas exhaust valve 3 comprises a pipe body 31 and a one-way valve 32 arranged on the pipe body 31, wherein the one-way valve 31 controls gas to only pass through the one-way valve 32 from the outside of the pipe body 31 to the inside of the pipe body 31. The one-way valves 32 may be one or more, and preferably three in this embodiment, and are uniformly distributed along the circumference of the tube 31.

During the production of oil, oil is pumped out of the oil pipe 2 and gas trapped in the oil is pumped out of the casing 1. These gases are complex in composition and contain some highly toxic components and therefore need to be transported to specific gas processing facilities for processing. The gas pressure is gradually reduced during the transportation of the casing 1, and the casing is buried underground in the process and has heat preservation effect by the ground, so that the part of the casing 1 has no risk of icing. After the gas has moved along the casing 1 to the ground, it passes through the non-return valve 32 into the collar-type sleeve gas vent valve 3, where it is heated by the oil as it is transported into the outlet line 4. The gas and the petroleum are separated in the oil outlet pipe 4, the petroleum is continuously conveyed into the petroleum collecting device through the oil outlet pipe 4, and the gas enters the first gas outlet pipe 5 and is conveyed into the gas treatment device. Because the gas is heated by the petroleum at higher temperature, the first air outlet pipe 5 is not easy to freeze, and the anti-freezing performance of the gas is improved.

Preferably, in this embodiment, the casing 1 is further communicated with a second gas outlet pipe 6 at a position close to the wellhead, the second gas outlet pipe 6 is communicated to an external gas processing device, the second gas outlet pipe 6 is provided with a valve 7 and a pressure gauge 8, and the pressure gauge 8 is arranged on one side of the valve 7 close to the casing 1. Since a certain pressure is required for the gas to pass through the check valve 32, when the check valve 32 fails, the gas pressure in the casing 1 is too high due to unsmooth exhaust, and a safety accident occurs. Can observe the atmospheric pressure size in the sleeve pipe 1 through pressure gauge 8, can open the valve on the second outlet duct 6 when discovering that atmospheric pressure is too high, carry out urgent exhaust, avoid appearing the incident, guarantee equipment and personnel's safety.

Implement the embodiment of the utility model provides a, following beneficial effect has: the novel oil well interface device with the exhaust valve of the utility model utilizes the connecting hoop type sleeve gas exhaust valve to lead the gas in the sleeve into the oil transportation pipe, heats the gas by utilizing the heat of the crude oil in the oil transportation pipe, separates the gas into the external gas treatment device, and avoids the icing phenomenon of the outlet pipe; the antifreezing property is improved under the condition of not adding extra heat-preserving and heating equipment, and the equipment cost and the use cost are reduced.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a take novel oil well interface arrangement of discharge valve which characterized in that, it includes: sleeve pipe, defeated oil pipe, connect hoop formula cover gas discharge valve, play oil pipe and first outlet duct, connect hoop formula cover gas discharge valve include the body and set up in outside-in's check valve on the body, defeated oil pipe and place in connect hoop formula cover gas discharge valve in the sleeve pipe, connect hoop formula cover gas discharge valve lower interface intercommunication defeated oil pipe goes up the interface intercommunication defeated oil pipe lower extreme, defeated oil pipe upper end extends to outside the sleeve pipe, first outlet duct intercommunication defeated oil pipe.

2. The novel well interface device with an exhaust valve as claimed in claim 1, further comprising a second outlet pipe communicating with the casing.

3. The novel oil well interface device with the exhaust valve as claimed in claim 2, wherein the first outlet pipe and the second outlet pipe are respectively provided with a valve.

4. The novel well interface device with vent valve as claimed in claim 1, wherein said collar-type sleeve vent valve comprises three check valves evenly distributed along the circumference of said tubular body.

5. The novel well interface device with vent valve of claim 1, wherein said collar-type casing vent valve is disposed below ground level.