A kind of high-strength, soluble metal matrix composite material and its preparation method

A composite material and metal-based technology, applied in the fields of unconventional drilling and completion fracturing, drilling and completion engineering functional materials, can solve the problems of increased cost, no self-degradation, small casing diameter, etc.

Active Publication Date: 2021-03-19
CHINA PETROCHEMICAL CORP +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the bridge plugs used in drilling and completion tools do not have the characteristics of self-degradation due to their materials, so the drilling and milling process is required to drill through the bridge plugs, especially the bridge plugs usually used in staged fracturing of oil and gas wells require drilling and milling processes to complete , which not only increases the cost and reduces the construction efficiency, but also the diameter of the casing after drilling and milling is small, which is not conducive to the construction and reconstruction of oil and gas wells in the later stage

Method used

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  • A kind of high-strength, soluble metal matrix composite material and its preparation method
  • A kind of high-strength, soluble metal matrix composite material and its preparation method
  • A kind of high-strength, soluble metal matrix composite material and its preparation method

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Embodiment 1

[0078] In this embodiment, the aluminum metal powder, magnesium metal powder, binder, interface coupling agent, plasticizer, and reinforced carbon fiber are mixed evenly according to the mass ratio of 9:51:12:2:1:25, and then poured into the composite powder Add a small amount of polyvinyl alcohol solution with a mass concentration of 4% to the body slurry, and add 2ml of polyvinyl alcohol solution per 100ml of composite powder slurry. The mixture is heated in the barrel of the injection machine to become a rheological plastic material, and injected into the mold under an appropriate injection pressure. The extrusion port of the mold is a gap with an opening width of 0.3mm, and the extrusion pressure is 2.5MPa to obtain a thickness of 0.25mm. mm flake sintered precursor. Subsequently, the sintered precursor was dried in a tube furnace to remove the liquid medium, and the drying temperature was 140°C for 4 hours. The dried sintered precursors are laminated into a mold, followe...

Embodiment 2

[0080] The reinforcement carbon fiber is added in the anionic surfactant (the anionic surfactant is preferably one or more of sodium hexametaphosphate, sodium lauryl sulfate, sodium lignin sulfonate, sodium cetylbenzene sulfonate species compound), the mass ratio of reinforced carbon fiber to anionic surfactant is 5:1, ultrasonically dispersed for 1.5 to 3 hours, and then centrifugally cleaned with ethanol to obtain modified reinforced carbon fiber. Mix aluminum metal powder, magnesium metal powder, binder, interfacial coupling agent, plasticizer, and modified reinforced carbon fiber according to the mass ratio of 10:50:14:2:2:24, and pour into the composite powder Add a small amount of polyvinyl alcohol solution with a mass concentration of 4% to the slurry, and add 2ml of polyvinyl alcohol solution per 100ml of composite powder slurry. The mixture is heated in the barrel of the injection machine to become a rheological plastic material, and injected into the mold under an ap...

Embodiment 3

[0082] The aluminum-magnesium metal powder and the reinforced carbon fiber are evenly mixed into the binder with the composition of 35% polyurethane, 40% methylcellulose and 25% polyethylene glycol to obtain a premix. Mix aluminum, magnesium metal powder, carbon fiber, binder, interfacial coupling agent, and plasticizer in the premix evenly according to the mass ratio of 8:52:14:2:2, and mix it on the mixer at a temperature of 70°C After mixing for 1 hour, it becomes a uniform feeding material; after the feeding material is granulated, it is injected and molded on an injection molding machine at a temperature of 170°C and a pressure of 90 MPa for 60 seconds to obtain a corresponding molded body; the molded body is thermally debonded by extraction After curing, sintering was carried out at 1100°C under vacuum conditions and kept for 1.5 hours to obtain the corresponding metal-based magnesium-aluminum composite material.

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Abstract

The invention discloses a high-strength and soluble metal-based composite material at first. The high-strength and soluble metal-based composite material comprises the following elemental components in percentage by weight of 10-15% of Al, 50-60% of Mg, 25-30% of C and other trace elements and impurities. Meanwhile, the invention further discloses a method for preparing the high-strength and soluble metal-based composite material. The method comprises the steps of preparing materials in a mass ratio of (10 to 15): (50 to 60): (20 to 30): (10 to 20) of an aluminium metal powder to a magnesium metal powder to carbon fibers to additives; mixing the raw materials according to different preparation flows to prepare a slurry; carrying out injection molding on the slurry to obtain a sintered precursor; carrying out liquid medium removal treatment on the sintered precursor; and carrying out sintering molding on the dried sintered precursor to obtain the metal-based magnesium-aluminium composite material. The high-strength and soluble metal-based composite metal material provided by the invention is high in strength and soluble under a specific condition, and has the characteristics of being excellent in comprehensive mechanical performance and the like.

Description

technical field [0001] The invention belongs to a high-strength, soluble metal-based composite material and a preparation method in the field of functional materials for drilling and completion engineering, and is especially suitable for the field of unconventional drilling, completion and fracturing. Background technique [0002] The new material industry has penetrated into various fields of the national economy, national defense construction and social life, supporting the development of a large number of high-tech industries, playing a pivotal role in the development of the national economy, and becoming an important field for various countries to seize the commanding heights of future economic development. [0003] At present, the bridge plugs used in drilling and completion tools do not have the characteristics of self-degradation due to their materials, so the drilling and milling process is required to drill through the bridge plugs, especially the bridge plugs usuall...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C49/04C22C47/14C22C49/14C22C101/10
CPCC22C47/14C22C49/04C22C49/14
Inventor 张磊杨海波唐明赵勇马明新徐鑫邹晓敏董恩博李国锋邵茹王毅齐志刚
Owner CHINA PETROCHEMICAL CORP
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