Degradable polymer temporary plugging agent and preparation method thereof
The invention discloses a degradable polymer temporary plugging agent and a preparation method thereof. The degradable polymer temporary plugging agent comprises first temporary plugging particles and second temporary plugging particles in a mass ratio of (55-75): (25-45). When the temporary pluggin...
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| creator | XIANG RONG XU YANG PAN HONGWEN LI SHAN HIGASHINO, MASUTOMI SHI JIAQING YU XIAORONG LI XUE HE WANG ZHENG JIANGANG YANG QIANLONG YIN HUCHEN |
| description | The invention discloses a degradable polymer temporary plugging agent and a preparation method thereof. The degradable polymer temporary plugging agent comprises first temporary plugging particles and second temporary plugging particles in a mass ratio of (55-75): (25-45). When the temporary plugging agent reaches a stratum plugging position for temporary plugging, the first temporary plugging particles are cross-linked to form a compact temporary plugging layer, the polyester elastomer in the second temporary plugging particle system has certain flexibility under the action of the compatilizer, and the polyester elastomer in the second temporary plugging particle system has certain flexibility under the combined action of the plasticizer and the lubricant. The second temporary plugging particles can resist high temperature under the action of an underground stratum, can be properly deformed and are locally crosslinked with the crosslinked first temporary plugging particles, so that the mechanical strength of |
| format | Patent |
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The degradable polymer temporary plugging agent comprises first temporary plugging particles and second temporary plugging particles in a mass ratio of (55-75): (25-45). When the temporary plugging agent reaches a stratum plugging position for temporary plugging, the first temporary plugging particles are cross-linked to form a compact temporary plugging layer, the polyester elastomer in the second temporary plugging particle system has certain flexibility under the action of the compatilizer, and the polyester elastomer in the second temporary plugging particle system has certain flexibility under the combined action of the plasticizer and the lubricant. 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| subjects | ADHESIVES CHEMISTRY DYES MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES |
| title | Degradable polymer temporary plugging agent and preparation method thereof |
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