CN216768707U - Anticorrosive connection structure in gathering and transportation pipeline of metering station - Google Patents
Anticorrosive connection structure in gathering and transportation pipeline of metering station Download PDFInfo
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- CN216768707U CN216768707U CN202123170986.1U CN202123170986U CN216768707U CN 216768707 U CN216768707 U CN 216768707U CN 202123170986 U CN202123170986 U CN 202123170986U CN 216768707 U CN216768707 U CN 216768707U
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Abstract
The utility model discloses an inner anti-corrosion connecting structure of a gathering and transportation pipeline of a metering station, which comprises a main steel pipe, wherein an upper vertical pipe and a lower vertical pipe are arranged outside the main steel pipe, a main pipe lining anti-corrosion pipe layer is arranged on the inner wall of the main steel pipe, and the upper vertical pipe and the lower vertical pipe are connected with a main pipe inner plastic pipe layer through R-shaped hot melting bonding. The bottom end of the lower vertical pipe is connected with an elbow, the inner wall of the elbow is provided with an elbow lining anti-corrosion pipe layer, and one end of the main steel pipe is provided with a main pipe lining pipe flanging pad. The anti-corrosion connecting structure in the gathering and conveying pipeline of the metering station fills the blank that the inner wall of the multi-way valve group pipeline of the gathering and conveying pipeline of the metering station cannot be provided with an anti-corrosion layer, the plastic pipe is arranged on the inner wall of the pipeline to serve as the anti-corrosion layer, the anti-corrosion layer of the plastic pipe on the inner wall of the gathering and conveying pipeline of the metering station is fully covered, no steel exposed points exist, the effects of complete wax precipitation prevention, corrosion prevention and no scaling are achieved, and the service life is greatly prolonged.
Description
Technical Field
The utility model relates to the field of crude oil ground pipeline gathering and transportation in oil fields, in particular to an inner anti-corrosion connecting structure of a gathering and transportation pipeline of a metering station, and more particularly relates to an inner anti-corrosion connecting structure of a gathering and transportation pipeline of a metering station.
Background
The metering station is a place for measuring the daily output of a single well of an oil well, is distributed in the first line of the oil field, is used as an important link of oil field production, and is responsible for the oil-gas gathering and transportation of the oil field, the metering of products of the single well, the water-blending distribution of the single well and the hot washing of the oil well, three-phase fluid of oil, water and gas pumped out of the oil well firstly enters the metering station, and then the produced fluid is conveyed to a transfer station through a manifold, and the metering station consists of a manifold metering separator, an oil-gas metering instrument and a multi-way valve or a valve group;
the pipelines are connected by a tee joint, an elbow, a valve and a flange plate, the tee joint and the elbow are connected by conventional electric welding, the distance between the pipelines in the metering station and the tee joint elbow is short, the pipelines are welded by conventional steel pipes, the glossiness of the inner wall of the pipeline is low, the frictional resistance is large, the pipelines are corroded after being put into use for 1 to 2 years and a few months, the pipelines are blocked by scales, the normal production cannot be realized, the production stop and the replacement are needed, the quantity of corroded and punched holes of 9 metering stations is counted by a central crude oil field oil extraction five factory, the number of the corroded and punched holes is 102, 1 leakage is generated in 3.5 days on average, the serious threat is brought to the normal operation of the metering stations, resources are wasted, the environment is polluted, the maintenance cost is increased, the leakage of sewage aggravates the corrosion of the pipelines, and the vicious circle is caused. At present, the high-viscosity easy-coagulation crude oil in China accounts for more than 80% of crude oil produced by China, and particularly, the flow of three high-viscosity oil products with high coagulation point, high wax content and high viscosity is poor (for example: the Daqing oil field crude oil is paraffin base, has high wax content (20-30%), high solidification point (25-30 ℃) and high viscosity (ground viscosity 35), and can be waxed and corroded in 3-5 months of a metering station pipeline during operation, scaling, blocking, production stopping and replacement, multi-port oil well production stopping, little crude oil production, raw material waste, petroleum exploitation cost increase, metering pipeline waxing, and corrosion, scaling and blocking are mainly caused by short pipeline distance in a metering station factory building, more tee bends and more difficulty in making an anti-corrosion layer at a welded junction, the destructive power that causes the steel pipe inner wall when welding the tee bend is big, and the back hole repaired mouth processing is difficult to do to the small-bore steel pipe mostly, and pipeline does not have interior anticorrosive coating in most measurement station factory buildings at present.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an anti-corrosion connecting structure in a gathering and transportation pipeline of a metering station, which can effectively solve the problems in the background technology that: the inner wall of the gathering and transportation pipeline of the traditional metering station has no anticorrosive coating, so that the gathering and transportation pipeline of the metering station can be waxed in a short period of production, corroded, scaled, blocked and stopped for replacement, and the oil field is economically lost due to the low yield of crude oil.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides an anticorrosive connection structure in gathering and transportation pipeline of metering station, includes main steel pipe, the externally mounted of main steel pipe has riser and lower riser, the inner wall of main steel pipe is equipped with the inside lining anticorrosive tube layer of being responsible for, the bottom of lower riser is connected with the elbow, the inner wall of elbow is equipped with the inside lining anticorrosive tube layer of elbow, the inside lining pipe turn-ups pad in being responsible for is installed to the one end of main steel pipe, first main pipe ring flange and second main pipe ring flange are installed respectively to the outside both ends of main steel pipe, go up the outside top of riser and install the riser ring flange, the inside top of going up the riser is equipped with the inside lining pipe turn-ups pad in the riser.
As a further scheme of the utility model, an upper vertical pipe lining anticorrosive pipe layer and a lower vertical pipe lining anticorrosive pipe layer are respectively arranged inside the upper vertical pipe and the lower vertical pipe, and a tee joint lining pipe bonding seam is arranged between each of the upper vertical pipe lining anticorrosive pipe layer and the lower vertical pipe lining anticorrosive pipe layer and the main pipe lining anticorrosive pipe layer.
As a further scheme of the utility model, the main pipe lining pipe flanging pad and the upper riser pipe lining pipe flanging pad are respectively in hot-melt connection with the second main pipe flange and the upper riser pipe flange.
As a further scheme of the utility model, the diameter of the upper vertical pipe is the same as that of the lower vertical pipe, and the diameter of the main steel pipe is larger than that of the upper vertical pipe and the lower vertical pipe.
Compared with the prior art, the utility model has the following beneficial effects:
1. the blank that the inner wall of the pipeline of the manifold multi-way valve group of the metering station can not be provided with an anticorrosive coating is filled, the inner wall of the pipeline is provided with the plastic pipe as the anticorrosive coating, the anticorrosive coating on the inner wall of the pipeline of the metering station gathering and conveying pipe is completely covered, no steel exposed points are formed, the effects of complete wax precipitation prevention, corrosion prevention and no scaling are achieved, and the service life is greatly prolonged;
2. through the smoothness nature of being responsible for inside lining anticorrosive tube layer, the effectual frictional resistance that has reduced is faster than the same diameter steel pipe velocity of flow, effectively reduces power take off, has improved the use of manifold many-way valves, has reduced power consumption, has practiced thrift the fund.
Drawings
FIG. 1 is a schematic view of the overall structure of an anti-corrosion connecting structure in a gathering and transportation pipeline of a metering station according to the present invention;
fig. 2 is an overall schematic view of a gathering and transportation pipeline of a metering station according to the present invention.
In the figure: 1. an upper vertical pipe; 2. a first main pipe flange; 3. the main pipe is lined with an anti-corrosion pipe layer; 4. bending the pipe; 5. the elbow is lined with an anti-corrosion pipe layer; 6. a main pipe lining pipe flanging pad; 7. a second main pipe flange; 8. a main steel pipe; 9. an upper riser flange; 10. an upper riser liner pipe flanging pad; 11. the tee joint inner lining pipe is spliced with a seam; 12. and (5) descending a stand pipe.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in fig. 1-2, an anticorrosive connection structure in gathering and transportation pipeline of metering station, including main steel pipe 8, the externally mounted of main steel pipe 8 has riser 1 and lower riser 12, the inner wall of main steel pipe 8 is equipped with and is responsible for inside lining anticorrosive tube layer 3, the bottom of lower riser 12 is connected with elbow 4, the inner wall of elbow 4 is equipped with elbow inside lining anticorrosive tube layer 5, the inside lining pipe turn-ups pad 6 in being responsible for is installed to the one end of main steel pipe 8, first main pipe ring flange 2 and second main pipe ring flange 7 are installed respectively to the outside both ends of main steel pipe 8, the riser ring flange 9 is installed on the outside top of going up riser 1, the inside top of going up riser 1 is equipped with the inside lining pipe turn-ups pad 10 in the riser.
Go up riser 1 and lower riser 12's inside and be equipped with riser inside lining anticorrosive tube layer and lower riser inside lining anticorrosive tube layer respectively, go up riser inside lining anticorrosive tube layer and lower riser inside lining anticorrosive tube layer all with be equipped with tee bend inside lining pipe hot melt bonding seam 11 between being responsible for inside lining anticorrosive tube layer 3, and go up riser inside lining anticorrosive tube layer and lower riser inside lining anticorrosive tube layer all with be R type hot melt bonding between being responsible for the inside lining anticorrosive tube layer together, seamless, no leak source.
The main pipe lining pipe flanging pad 6 and the upper vertical pipe lining pipe flanging pad 10 are respectively connected with the second main pipe flange 7 and the upper vertical pipe flange 9 in a hot melting mode.
The diameter of the upper vertical pipe 1 is the same as that of the lower vertical pipe 12, and the diameter of the main steel pipe 8 is larger than that of the upper vertical pipe 1 and the lower vertical pipe 12.
It needs to be explained, an anticorrosive connection structure in gathering and transportation pipeline of metering station, when using, go up riser 1, main steel pipe 8 and lower riser 12 are connected with the outside pipeline through first main pipe ring flange 2 respectively, second main pipe ring flange 7 and last riser ring flange 9, when connecting, the inside lining pipe turn-ups pad 6 of being responsible for, the inside lining pipe turn-ups pad 10 of going up the riser and the inside lining pipe turn-ups pad of lower riser can all carry out the effect sealed with the ring flange to being connected in the inside lining pipe turn-ups pad 10 of going up the riser and improve the leakproofness of connection, after the intercommunication, liquid medium circulates in the inside lining pipe layer 3 of being responsible for and the inside lining pipe layer of going up riser 1 and lower riser 12 and the inside lining pipe layer of lower riser.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides an anticorrosive connection structure in measurement station gathering pipeline which characterized in that: including main steel pipe (8), the externally mounted of main steel pipe (8) has riser (1) and lower riser (12), the inner wall of main steel pipe (8) is equipped with and is responsible for inside lining anticorrosive tube layer (3), the bottom of lower riser (12) is connected with elbow (4), the inner wall of elbow (4) is equipped with elbow inside lining anticorrosive tube layer (5), the inside lining pipe turn-ups pad (6) of being responsible for is installed to the one end of main steel pipe (8), first main pipe ring flange (2) and second are installed respectively at the outside both ends of main steel pipe (8) are responsible for ring flange (7), go up the outside top of riser (1) and install riser ring flange (9), the inside top of going up riser (1) is equipped with interior lining pipe turn-ups pad (10) of riser.
2. The anticorrosion connecting structure in the gathering and transportation pipeline of the metering station as recited in claim 1, wherein: the inner parts of the upper vertical pipe (1) and the lower vertical pipe (12) are respectively provided with an upper vertical pipe lining anticorrosive pipe layer and a lower vertical pipe lining anticorrosive pipe layer, and a tee-joint lining pipe hot-melt bonding seam (11) is arranged between each of the upper vertical pipe lining anticorrosive pipe layer and the lower vertical pipe lining anticorrosive pipe layer and the main pipe lining anticorrosive pipe layer (3).
3. The anticorrosion connecting structure in the gathering and transportation pipeline of the metering station as recited in claim 1, wherein: the main pipe lining pipe flanging pad (6) and the upper vertical pipe lining pipe flanging pad (10) are respectively in hot melting connection with the second main pipe flange (7) and the upper vertical pipe flange (9).
4. The metering station gathering and transportation pipeline internal corrosion-resistant connecting structure as claimed in claim 1, wherein: the diameter of the upper vertical pipe (1) is the same as that of the lower vertical pipe (12), and the diameter of the main steel pipe (8) is larger than that of the upper vertical pipe (1) and that of the lower vertical pipe (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123170986.1U CN216768707U (en) | 2021-12-16 | 2021-12-16 | Anticorrosive connection structure in gathering and transportation pipeline of metering station |
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| CN202123170986.1U CN216768707U (en) | 2021-12-16 | 2021-12-16 | Anticorrosive connection structure in gathering and transportation pipeline of metering station |
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| CN216768707U true CN216768707U (en) | 2022-06-17 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198584A (en) * | 2021-12-16 | 2022-03-18 | 大庆石油管理局有限公司松原装备制造分公司 | Anti-corrosion connecting structure in gathering and transportation pipeline of metering station and processing method thereof |
| CN114198584B (en) * | 2021-12-16 | 2024-06-04 | 松原市大庆油田汽车改装有限公司 | Anti-corrosion connection structure in metering station gathering and conveying pipeline and processing method thereof |
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2021
- 2021-12-16 CN CN202123170986.1U patent/CN216768707U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114198584A (en) * | 2021-12-16 | 2022-03-18 | 大庆石油管理局有限公司松原装备制造分公司 | Anti-corrosion connecting structure in gathering and transportation pipeline of metering station and processing method thereof |
| CN114198584B (en) * | 2021-12-16 | 2024-06-04 | 松原市大庆油田汽车改装有限公司 | Anti-corrosion connection structure in metering station gathering and conveying pipeline and processing method thereof |
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