CN2434424Y

CN2434424Y - Oil pipeline with inner inlaid metal anti-corrosion lining for oil field

Info

Publication number: CN2434424Y
Application number: CN 00235344
Authority: CN
Inventors: 侯贤忠; 侯欣田; 侯冰冰; 侯可欣
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-05-22
Filing date: 2000-05-22
Publication date: 2001-06-13
Anticipated expiration: 2010-05-22

Abstract

The utility model relates to an anticorrosive lining of which the inside is inlaid with metal, particularly an oil pipe of which the inside is inlaid with a stainless steel lining, wherein, the oil pipe is used on oil field. The utility model belongs to one oil pipe of an anticorrosion oil pipe used on the oil field. A columniform lining or an outer coating anticorrosion pipe is welded by thin wall stainless steel materials, and the lining is inlaid in a cavity of the oil pipe. The outer coating anticorrosion pipe is sheathed on the outer wall of a sleeve pipe, and both ends of the outer coating anticorrosion pipe are connected and sealed in welding mode. The utility model has the advantages that the anticorrosion service life of the oil pipe can be prolonged, and the anticorrosion service life of the oil pipe can be prolonged from original 3 to 5 years to 15 to 20 years. Iron ions in a carbon steel oil pipe effect on the remove oil of polymericcompound can be avoided because the stainless steel material is used. The recovery efficiency of the remove oil of the polymericcompound can be raised.

Description

The oil field oil pipe of interior metal inlaying corrosion protective lining

The utility model relate to a kind of in the oil field oil pipe of metal inlaying corrosion protective lining, relate in particular to and inlay stainless steel-lined oil field oil pipe in a kind of, belong to a kind of in the antisepsis oil pipe of oil field.

In oil extraction process, the oil of pumping unit by being lowered in the oil well, sleeve pipe with the crude oil pumping, give rise in the oil sump tank on ground, because the oil well underground environment is abominable, and is very strong to the corrosiveness of oil pipe, sleeve pipe, make the oil field must carry out preservative treatment with oil, sleeve pipe.At present, glass tube lining or resin emulsion paint preservative treatment are adopted in preservative treatment to oil, sleeve pipe usually, in a word, what use all is nonmetals, and confirmed that in production practices for many years glass lining oil, sleeve pipe is frangible easily splits, need often to change, bring inconvenience to production, finally be eliminated.And carry out preservative treatment with resin emulsion paint, exist not wear-resisting, intensity is low, the shortcoming that the anticorrosion life-span is short, for example, adopt anticorrosive paint to carry out antiseptic oil field with oily, sleeve pipe, be 3-5 application life only, makes oil well need more to change oil again, sleeve pipe, the sleeve pipe that has uses the perforation that just is corroded about half a year, cause the whole mouthful of oil well that is worth surplus in the of 50 ten thousand yuan to scrap, give and produce and national economy is brought enormous economic loss, in addition, in the oil well that adopts polymer displacement of reservoir oil, the widely used carbon steel oil in oil field, the iron ion that contains in the sleeve pipe can reduce the viscosity of polymer, the recovery ratio of polymer displacement of reservoir oil is reduced, and waste expensive polymer.Therefore, how to overcome nonmetal anti-corrosion material and become current field produces and technological improvement urgent problem with oil, the drawback that exists in the casing tube anti-corrosive in the oil field.

The purpose of this utility model provide a kind of in the oil field oil pipe of metal inlaying material antiseptic lining, especially provide a kind of in the stainless steel-lined oil field of edge oil pipe, solve the problem of above-mentioned nonmetal, resin emulsion paint existence in the oil pipe anti-corrosive processing.

The technical solution of the utility model is: make cylindrical lining with the thin-wall metal anti-corrosion material, the lining external diameter is near equaling the oil pipe interior diameter, and lining embeds the oil pipe inner chamber, and the both ends of the surface of lining and oil pipe link, seal with welding manner.

Make cylindrical outer coated anti-corrosion pipe with the thin-wall metal anti-corrosion material, outer coated anti-corrosion pipe interior diameter is near equaling the oil pipe external diameter, and outer coated anti-corrosion pipe is sleeved on the oil-pipe external wall, and the both ends of the surface of outer coated anti-corrosion pipe and oil pipe link, seal with welding manner.

Above-mentioned oil pipe, can be simultaneously on oil pipe in the metal inlaying corrosion protective lining and outside the deposited anti-corrosion pipe of suit outsourcing.

Above-mentionedly can be thin-wall stainless steel plate, thin-walled copper coin in order to the anti-corrosion of metal material of making oil pipe lining or outer coated anti-corrosion pipe.

1., use the thin-wall metal material the utility model has the advantages that:, the lining or the outer coated anti-corrosion pipe of the oil pipe of making as stainless steel material, on the anticorrosion life-span be the anticorrosion life-span of nonmetals 3-5 doubly, make the anticorrosion life-span extend to 15-20 by original 3-5, this point only, just avoided repeating the economic loss that operation brings, especially can avoid scrapping of whole mouthful of oil well that sleeve pipe causes because of corrosion failure, this economic benefit that produces economically is very huge.2., the utility model adopts stainless steel material to do anti-corrosion material, avoided that iron ion improves the recovery ratio of polymer displacement of reservoir oil to the influence of polymer displacement of reservoir oil in the carbon steel oil pipe of present use.3., thin-wall stainless steel does the anti-corrosion material of oil pipe, on cost with nonmetals, that the resin emulsion paint material is done anti-corrosion material is similar, but has significant advantage on the performance.

Fig. 1 is the oil pipe sectional side elevation of interior metal inlaying corrosion protective lining.

Fig. 2 is the cross-sectional figure of the oil pipe of interior metal inlaying corrosion protective lining.

Fig. 3 is the oil pipe sectional side elevation of the outer coated anti-corrosion pipe of suit.

Fig. 4 is the cross-sectional figure of oil pipe of the outer coated anti-corrosion pipe of suit.

Fig. 5 is the oil pipe sectional side elevation of the outer coated anti-corrosion pipe of simultaneously interior lining innner and outer suit.

Fig. 6 is the cross-sectional figure of oil pipe of the outer coated anti-corrosion pipe of simultaneously interior lining innner and outer suit.

Below in conjunction with accompanying drawing the utility model is described specifically:

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, make cylindrical lining 1 with the thin-wall metal anti-corrosion material, lining 1 external diameter is near the interior diameter that equals oil pipe 2, lining 1 embeds the inner chamber of oil pipe 2, the both ends of the surface of lining 1 and oil pipe 2 link, seal with welding manner, make the annular space between oil pipe 2 and the lining 1 airtight, prevent that well liquid from entering.

Make cylindrical outer coated anti-corrosion pipe 3 with the thin-wall metal material, outer coated anti-corrosion pipe 3 interior diameters are near equaling oil pipe 2 external diameters, outer coated anti-corrosion pipe 3 is sleeved on the outer wall of oil pipe 2, outer coated anti-corrosion pipe 3 links, seals with welding manner with the both ends of the surface of oil pipe 2, make the annular space between oil pipe 2 and the outer coated anti-corrosion pipe 3 airtight, prevent that stratum corrosion meson from entering.

To oil field oil pipe 2, in can be simultaneously on oil pipe 2 metal inlaying corrosion protective lining 1 and outside the deposited anti-corrosion pipe 3 of suit outsourcing, between lining 1 and the oil pipe 2, between oil pipe 2 and the outer coated anti-corrosion pipe 3 with welding manner link, sealing, prevent that well liquid or stratum corrosivity meson from entering.

In oil field practice application, can take in the lining in the oil pipe inner chamber, prevent of the deep-etching effect of well liquid to oil pipe, and sleeve pipe is taked the outer coated anti-corrosion pipe of suit, prevent that the corrosivity meson is to the corrosiveness of sleeve pipe in the stratum, make the oil field both satisfy the corrosion-resistant demand, can reduce cost again with oil pipe, sleeve pipe.

Above-mentionedly can be thin-wall stainless steel plate, thin-walled copper coin in order to the lining 1 of making oil pipe 2 or the anti-corrosion of metal material of outer coated anti-corrosion pipe 3.

Claims

1, a kind of oil field oil pipe of interior metal inlaying corrosion protective lining, form by lining (1) and oil pipe (2), it is characterized in that: make cylindrical lining (1) with the thin-wall metal anti-corrosion material, lining (1) external diameter is near the interior diameter that equals oil pipe (2), lining (1) embeds the inner chamber of oil pipe (2), and the both ends of the surface of lining (1) and oil pipe (2) link, seal with welding manner.

2, the oil field oil pipe of a kind of interior metal inlaying corrosion protective lining as claimed in claim 1, it is characterized in that: can make cylindrical outer coated anti-corrosion pipe (3) with the thin-wall metal material simultaneously, outer coated anti-corrosion pipe (3) interior diameter is near the external diameter that equals oil pipe (2), outer coated anti-corrosion pipe (3) is sleeved on the outer wall of oil pipe (2), and outer coated anti-corrosion pipe (3) links, seals with welding manner with the both ends of the surface of oil pipe (2).