CN201908579U - Anti-corrosion wear-resistant composite lining pipe - Google Patents

Abstract

The utility model relates to an anti-corrosion wear-resistant composite lining pipe, which comprises a lining pipe body and ends. The lining pipe body is barrel-shaped and comprises a wear-resistant layer, an anti-corrosion layer and a sol layer, wherein the wear-resistant layer is used for preventing an oil pumping pipe and an oil delivery pipeline from being worn eccentrically, the anti-corrosion layer is used for preventing an oil pipe from being corroded, and the sol layer is in adhesion connection with the oil pipe. By the aid of the optimized design and the structure, the anti-corrosion wear-resistant composite lining pipe is applied to oil pumping pipes, oil delivery pies and water delivery pipes, accordingly completely isolates the inner surface of the oil pipe from other liquid media, avoids eccentric wear, inner corrosion, scaling and wax precipitation of the oil pipe, can effectively prolong the service lives of oil pipe fittings in a lower cost manner, prolongs circulation investment circle, and greatly reduces comprehensive development cost.

Description

Anti-corrosion and wear-resistant lined composite pipe

technical field

The utility model relates to an anti-corrosion and wear-resistant inner-lined composite pipe, in particular to a long-acting anti-corrosion and wear-resistant inner-lined composite pipe used in the development of oil and gas fields to prevent partial wear, corrosion and temperature resistance of oil pipes.

Background technique

In the field of oil exploitation, in order to be durable and take into account the cost factor of large-scale production and development, oil extraction pipes and oil pipelines are usually metal pipe fittings. The climate and environment of oil extraction areas are often complex, and there are a large number of microorganisms in oil wells to form electrolyte solutions. It is also easy to produce chemical reactions. There are strong winds, sand, rain, snow and other climatic factors in the oil extraction pipes and oil pipelines on the surface, which will cause corrosion and wear of the oil pipelines. At the same time, the oil flow inside the oil extraction pipes and oil pipelines will cause certain wear and corrosion , causing eccentric wear, corrosion, and scaling of metal pipe fittings, causing damage to oil pipelines, rods, and pumps due to the above reasons, resulting in shortened operating cycles, increased production costs, and even interrupted mining and production, causing huge economic losses to the development and production of oil and gas fields and serious repercussions.

In view of the serious corrosion and wear problems of the above-mentioned oil pipe fittings, the protective measures usually taken at present are to use glass lined pipes or wear-resistant metal lined pipes. The glass lining pipe is made of glass material. The surface of the product is smooth, wear-resistant and corrosion-resistant. Although the price is low, it is easy to break, difficult to maintain, and difficult to clean after breaking. It will cause damage to the oil pipe, such as scratches and stuck pumps. The negative impact of damage is greater; and wear-resistant metals are also easily corroded, and the production cost is high and the validity period is short, so they are not suitable for large-scale oil and gas field exploitation and production.

Utility model content

In view of the above-mentioned problems in the prior art, the main purpose of this utility model is to solve the defects of the prior art, and provide a kind of anti-corrosion and wear-resistant lined composite pipe, which is mainly used in the anti-corrosion, anti-wear, Anti-scaling, through the optimized design and structure of the utility model, can effectively prolong the service life of the oil pipe.

The technical solution of the utility model is to provide an anti-corrosion and wear-resistant lined composite pipe. The anti-corrosion and wear-resistant lined composite pipe includes: a liner body and an end, and the liner body is cylindrical , including: an anti-wear layer for preventing partial wear of the oil pipe, the anti-wear layer is arranged on the inner wall of the liner pipe body, the inner side of the anti-wear layer is in direct contact with the oil in the oil pipe, and is used to prevent the oil pipe from Corroded anti-corrosion layer, the inner side of the anti-corrosion layer is in contact with the outer side of the wear-resistant layer, the sol layer used for adhesive connection with the oil pipe, the inner side of the sol layer is in contact with the outer side of the anti-corrosion layer, the inner side of the sol layer is in contact with the outer side of the anti-corrosion layer The inner wall of the tubing is in contact.

Preferably, the connection between the lining pipe body and the oil pipe is interference fit.

Preferably, the wall thickness of the liner pipe body is between 2.5mm and 4.5mm.

Preferably, the anti-wear layer is made of ultra-high molecular weight polyethylene composite material.

Preferably, the anti-corrosion layer is made of ultra-high molecular weight polyethylene composite material.

Preferably, the sol layer is a resin material with strong adhesion and expansion.

Compared with the prior art, the utility model has advantages and beneficial effects as follows:

1. The utility model adopts the optimized structure of layered treatment. The anti-wear layer and the anti-corrosion layer can deal with the corrosion and wear problems of the oil suction pipe and the oil delivery pipeline. It is more efficient to use.

2. The anti-corrosion and wear-resistant lined composite pipe of the present invention adopts ultra-high molecular polyethylene composite material, which has the technical effects of high molecular weight, high density, small porosity, strong wear resistance and anti-corrosion, and has high temperature resistance and anti-seepage It is a kind of protective measure with good effect and long anti-corrosion time.

3. The anti-corrosion and wear-resistant lined composite pipe of the utility model adopts new structural features, so that the wall thickness of the lined pipe reaches a thin wall effect of 2.5mm-4.5mm, and the volume of the oil suction pipe and the oil delivery pipeline loaded into the lined pipe is increased. At the same time, on the basis of increasing the anti-corrosion and wear-resistant quality, the weight of the anti-corrosion and wear-resistant lined composite pipe described in the utility model is reduced, which greatly saves the material cost.

3. The utility model has the advantages of simple structure, low cost and convenient manufacture, which can effectively prolong the service life of oil pipes, lengthen the cycle investment period, and greatly reduce the comprehensive development cost of oil and gas fields.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

The utility model provides an anti-corrosion and wear-resistant lining composite pipe.

As shown in Figure 1, the anti-corrosion and wear-resistant lined composite pipe of the present invention includes a liner pipe body 1 and a terminal head 2, the liner pipe body 1 is cylindrical, and the end head 2 is arranged on the Both ends of the liner pipe body 1 are used to fasten the anti-corrosion and wear-resistant lined composite pipe. The liner pipe body 1 is divided into three layers including: an anti-wear layer for preventing partial wear of the oil pipe, and the anti-wear layer Set on the inner wall of the liner pipe body 1, the inner side of the anti-wear layer is in direct contact with the oil in the oil pipe, and is used as an anti-corrosion layer for preventing oil pipe corrosion, and the inner side of the anti-corrosion layer is in contact with the outer side of the anti-wear layer , a sol layer used for viscous connection with the oil pipe, the inner side of the sol layer is in contact with the outer side of the anticorrosion layer, and the inner side of the sol layer is in contact with the inner wall of the oil pipe.

When the anti-corrosion and wear-resistant lined composite pipe is loaded into the oil pipe, the end 2 adopts the traditional lining flanging process to ensure that the anti-corrosion and wear-resistant lined composite pipe is close to the oil suction pipe and the oil pipeline The sol layer is used for viscous connection with the oil suction pipe and the oil delivery pipeline. After the anti-corrosion and wear-resistant lined composite pipe is loaded into the oil pipe, the above-mentioned oil pipe is heated, and the thermal melting and cohesiveness of the sol layer are used to The anti-corrosion and wear-resistant lined composite pipe is made to cling to the inner wall of the oil pipe with high strength, and the oil pipe includes but not limited to oil delivery pipe, oil extraction pipe, water delivery pipe and the like.

As a preferred solution of the present invention, the connection between the lining pipe body 1 and the oil pipe is an interference fit, and the outer diameter of the inner lining pipe body 1 is slightly larger than the inner diameter of the oil pipe.

As a preferred solution of the present utility model, the wall thickness of the lining pipe body 1 is between 2.5 mm and 4.5 mm.

As a preferred solution of the present invention, the anti-wear layer is made of ultra-high molecular weight polyethylene composite material.

As a preferred solution of the present invention, the anti-corrosion layer is made of ultra-high molecular weight polyethylene composite material.

As a preferred solution of the present utility model, the sol layer is a resin material with strong cohesiveness and expansibility, and the sol layer is used for viscous connection with the oil pipe. After the oil pipe is described, the oil extraction pipe and the oil delivery pipeline are heated, and the high thermal melting and cohesiveness of the sol layer are used to make the anti-corrosion and wear-resistant lined composite pipe close to the oil pipe, and the resin material itself has high temperature resistance, The technical effect of anti-leakage and good tensile and ductile properties.

The above are only preferred feasible embodiments of the present utility model, and the described embodiments are not intended to limit the scope of patent protection of the present utility model, so any equivalent structural changes made by using the specification and accompanying drawings of the present utility model, In the same way, all should be included in the protection scope of the present utility model.

Claims (6)

1. an anticorrosion antiwear inner liner compound pipe is characterized in that, described anticorrosion antiwear inner liner compound pipe comprises internal lining pipe body (1) and termination (2),

Described internal lining pipe body (1) is cylindric, comprising:

Be used to prevent the wearing course of oil pipe eccentric wear, described wearing course is arranged at described internal lining pipe body (1) inwall, and the inboard of described wearing course directly contacts with described oil pipe inner fluid,

Be used to prevent the anticorrosive coat of tube corrosion, the inboard and outer side contacts of described wearing course of described anticorrosive coat,

Be used for the sol layer that is connected with described oil pipe viscosity, described sol layer inboard with the outer side contacts of described anticorrosive coat, described sol layer is inboard to be contacted with described tube inner wall.

2. anticorrosion antiwear inner liner compound pipe as claimed in claim 1 is characterized in that, described internal lining pipe body (1) is an interference fit with described oil pipe connected mode.

3. anticorrosion antiwear inner liner compound pipe as claimed in claim 1 is characterized in that, described internal lining pipe body (1) wall thickness is between the 2.5mm-4.5mm.

4. anticorrosion antiwear inner liner compound pipe as claimed in claim 1 is characterized in that, described wearing course constitutes for the ultra high molecular polyethylene composite material.

5. anticorrosion antiwear inner liner compound pipe as claimed in claim 1 is characterized in that, described anticorrosive coat constitutes for the ultra high molecular polyethylene composite material.

6. anticorrosion antiwear inner liner compound pipe as claimed in claim 1 is characterized in that, described sol layer is caking property and the strong resin material of dilatancy.