发明名称 WELL TREATMENT FLUIDS COMPRISING MIXED ALDEHYDES
摘要 1. A corrosion inhibitor composition, comprising: - an aliphatic aldehyde having 1-10 carbon atoms; and - an aromatic aldehyde having 7-20 carbon atoms. 2. The composition of claim 1, wherein the weight ratio of aliphatic aldehyde to aromatic aldehyde is from about 2: 1 to about 25: 1. 3. The composition of claim 2, wherein the weight ratio of aliphatic aldehyde to aromatic aldehyde is about 10: 1. 4. The composition of any of proceeding claims, wherein the aliphatic aldehyde has 1-6 carbon atoms. 5. The composition of any of proceeding claims, wherein the aliphatic aldehyde comprises glyoxylic acid, glyoxal, or a mixture thereof. 6. The composition of any of proceeding claims, wherein the aromatic aldehyde has 7-10 carbon atoms. 7. The composition of any of preceding claims, wherein the aromatic aldehyde is selected from the group consisting of cinnamaldehyde, substituted cinnamaldehyde, and mainly, t-cinnamaldehyde. 8. The composition of any of proceeding claims, further comprising a hydrocarbon and an emulsifying agent. 9. The composition of any of proceeding claims, wherein the fluid composition is foamed. 10. The composition of any of proceeding claims, further comprising one or more additives selected from the group consisting of surfactants, corrosion inhibitors, stabilizers, solvents, reducing agents, sequestering agents, viscosity modifying agents, and pH control agents. 11. A well treatment fluid composition, comprising: - an acid; - water; - corrosion inhibitor, according to any of proceeding claims. 12. A well treatment fluid composition of claim 11, wherein acid is non-oxidizing acid. 13. A well treatment fluid composition of claim 12, wherein acid is selected from the group, consisting of hydrochloric acid, hydrofluoric acid, the mixture of hydrochloric acid and hydrofluoric acid, formic acid, acetic acid, citric acid and mixtures of at least two components, selected from formic acid, acetic acid and citric acid. 14. A method of acid-treating a subterranean formation, comprising the steps of injecting a well treatment fluid composition via a wellbore according to claim 12 or 13 into a subterranean formation.
申请公布号 EA004545(B1) 申请公布日期 2004.06.24
申请号 EA20020000436 申请日期 2000.09.27
申请人 SHLUMBERGER TECHNOLOGY B.V. 发明人 FRENIER, WAYNE, W;HILL, DONALD, G
分类号 C09K8/52;C09K8/54;C09K8/74;C09K8/86;C23F11/04;E21B41/02;(IPC1-7):E21B43/25;E21B43/27;E21B37/06 主分类号 C09K8/52
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