High-temperature magnesium oxychloride thermosetting resin gel system as well as solidified body and preparation method of system

A magnesium oxychloride thermosetting and epoxy resin curing technology, applied in the field of oil and gas well cementing, can solve the problems of inability to achieve performance control, failure to achieve bonding, etc., achieve controllable curing time, solve easily damaged, and meet cementing requirements. The effect of construction conditions
CN107954680AInactive Publication Date: 2018-04-24CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2018-04-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of oil and gas well cementing, and relates to a high-temperature magnesium oxychloride thermosetting resin gel system as well as a solidified body and preparation method of the system. The high-temperature magnesium oxychloride thermosetting resin gel system comprises an epoxy resin emulsion, an epoxy resin curing agent, a magnesium oxychloride skeleton materialand a high-temperature adjustable solidification agent, wherein the epoxy resin emulsion is at least one selected from the group consisting of glycidyl ether type epoxy resin, glycidyl ester type epoxy resin, cycloaliphatic type epoxy resin, glycidyl amine type epoxy resin, and linear aliphatic type epoxy resin; and the epoxy resin curing agent is at least one selected from the group consisting ofan anhydride, a carboxylic acid, an amine compound, a phenol compound, and a polyhydric alcohol. The high-temperature magnesium oxychloride thermosetting resin gel system provided by the invention can be cross-linked and cured to form an organic polymer material with a three-dimensional net-shaped structure under the conditions of heating, pressing and the like, and realizes annulus long-term sealing performance of cementing cement in the high-temperature environment of 90-120 DEG C relying on the advantages of excellent heat resistance, good compressive strength and toughness, excellent adhesion and the like.
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Description

technical field

[0001] The invention relates to the field of oil and gas well cementing, and more particularly relates to a high-temperature magnesium oxychloride thermosetting resin gelling system, a solidified body and a preparation method thereof. Background technique

[0002] Oil well cement is a calcium oxide type Portland cement, which belongs to hydraulic cementitious materials. It can be mixed with water in a certain proportion to form cement slurry, and hardened underground into cement stone with certain compressive strength, impermeability and durability, and it can also be widely used with various additives and external materials compatibility, density, strength and curing time can be designed and controlled within a certain range, and can easily meet the needs of conventional cementing projects. As a general sealing medium for well cementing projects, it has been widely used for more than 100 years It is used in various operations such as oil field drilling, wel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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