High-temperature-resistant high-density well cementation cement slurry
CN119683908AActive Publication Date: 2025-03-25CHINA NAT PETROLEUM CORP +2
Patent Information
- Application Number
- CN202311230917.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-22
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2043-09-22
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Figure CN119683908A_ABST
Abstract
The invention discloses high-temperature-resistant high-density well cementation cement paste which comprises the following components in parts by weight: 100 parts of oil well cement, 32-38 parts of silicon powder, 70-150 parts of a weighting agent, 4-6 parts of micro silicon, 4-5 parts of a suspending agent, 4-5 parts of a fluid loss agent, 2-4 parts of a retarder, 0.1-0.5 part of a defoaming agent and 61-69 parts of water. The high-temperature-resistant and high-density well cementation cement paste provided by the invention can keep relatively good stability at 180 DEG C, is free of free liquid, is small in water loss, is stable in thickening curve at high temperature, is free of core cladding, can meet well cementation construction requirements, and has a relatively good application prospect.
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Citation Information
Patent Citations
Oil well cement high temperature resistance suspending agent
CN105199690A
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CN113736016A
High-temperature-resistant high-density well cementation cement paste and preparation method thereof
CN114381249A