Application of carbon fiber reinforced composite materials in oilfield
With the deepening of the national 13th Five-Year Plan, energy conservation and consumption reduction has become one of the important goals of future oil and gas field development. At the same time, the development of marine oil and gas resources, the demand for new materials and new technologies has also expanded rapidly, and the requirements for oil production, gathering and transportation, storage and transportation equipment are also increasing. In the field of materials, high-performance (high-strength glass fiber, carbon fiber, etc.) composite materials are increasingly favored by the oilfield field for their excellent performance, quality and advantages, and the application and development prospects are very broad.
So, what are the applications of carbon fiber reinforced composites in the oil field? Let's take a look.
The application of carbon fiber reinforced composite materials in oil field is mainly divided into the application of carbon fiber in rod pump, carbon fiber (CFRP) oil casing, carbon fiber reinforced composite vehicle tank, oilfield production liquid separation and processing integrated equipment, metal pipeline reinforcement , repair and other aspects.
The rod type oil pump matched with the oil production well is mainly composed of a sealing part, a long cylinder, a plunger, a pump cylinder, an oil discharge valve, a combined outer cylinder, an oil inlet valve and an anchor locking device. The pump cylinder and the combined outer cylinder can be made of carbon fiber to improve the corrosion resistance and wear resistance of the pump body and prolong the service life.
Carbon fiber (CFRP) oil casing has the characteristics of corrosion resistance, convenient construction, light weight and high strength, good fatigue performance and good economic benefits. For the treatment of shallow wells, minor repairs can be carried out; for large sections of wells Governance, long-term effective construction; CFRP density is 1/4 of steel, reducing transportation, loading and unloading and installation costs; steel and aluminum fatigue strength is 50% of static strength, while CFRP can reach 90%; The casing is directly filled with water, eliminating the need for a water injection pipe and saving money.
Carbon fiber reinforced composite vehicle tank is a container for tank cars, mainly used for transportation and storage of liquid, gas or granular media. The composite low-voltage vehicle tank has the advantages of light weight, high strength, easy cleaning, energy saving and environmental protection; good corrosion resistance, long service life; stable chemical structure, no secondary pollution; excellent thermal insulation performance, low heat loss; low maintenance cost and good comprehensive benefits. Etc.
The integrated equipment for oilfield production fluid separation and treatment is mainly divided into gas-liquid, free water separator, three-phase separator, composite oil-water separation cyclone, composite material filter/purifier, etc. It has light weight and high strength; corrosion resistance and resistance Grinding, long service life; equipment integration, miniaturization; high processing efficiency, low operating costs; low maintenance costs, good overall benefits.
Metal pipe reinforcement and repair are mainly for carbon fiber prepreg and carbon fiber board products. It uses the high-strength properties of carbon fiber to coat a layer of reinforcement on the outer surface of the service pipeline, wall, etc., and it plays the role of pressure, support and reinforcement after solidification molding. It has no fire during repair and has good safety; construction Simple, short construction period; excellent mechanical properties; suitable for large area defect reinforcement.
