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A platform for research: civil engineering, architecture and urbanism
High strength auto-expansion plugging agent
The invention relates to a high strength auto-expansion plugging agent, which belongs to the technical field of chemicals for plugging casing leakoff and big pore channels of oil filed production wells, and is mixed through oil well cement, aluminite powder, calcium oxide, asbestos wools, foam stabilizers and retarders according to following mass percent: 60%-80% oil well cement, 3%-7% aluminite powder, 10%-25% calcium oxide, 3-6% asbestos wools, 1.4%-1.5% foam stabilizers and 0.5%-0.6% retarders. The high strength auto-expansion plugging agent can rapidly foam and expanse and keep loss water by being injected into casing leakoff and big pore channel positions after being assembled on the ground, plays the role of high strength plugging, and solves the difficult problem that common plugging agents can not be kept. Simultaneously, the high strength auto-expansion plugging agent is excellent in solubleness when being prepared and excellent in mobility when being injected, and is convenient and safe to construct.
High strength auto-expansion plugging agent
The invention relates to a high strength auto-expansion plugging agent, which belongs to the technical field of chemicals for plugging casing leakoff and big pore channels of oil filed production wells, and is mixed through oil well cement, aluminite powder, calcium oxide, asbestos wools, foam stabilizers and retarders according to following mass percent: 60%-80% oil well cement, 3%-7% aluminite powder, 10%-25% calcium oxide, 3-6% asbestos wools, 1.4%-1.5% foam stabilizers and 0.5%-0.6% retarders. The high strength auto-expansion plugging agent can rapidly foam and expanse and keep loss water by being injected into casing leakoff and big pore channel positions after being assembled on the ground, plays the role of high strength plugging, and solves the difficult problem that common plugging agents can not be kept. Simultaneously, the high strength auto-expansion plugging agent is excellent in solubleness when being prepared and excellent in mobility when being injected, and is convenient and safe to construct.
High strength auto-expansion plugging agent
ZHU DEZHI (author) / CHANG GONGXI (author) / YU XIN (author) / ZHAO ZEZONG (author) / YANG HONGYUAN (author) / WU JIANCHAO (author) / ZENG LINGRUI (author) / GONG ZHIYONG (author)
2016-01-13
Patent
Electronic Resource
English
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