发明名称 |
CONTROL OF EQUIVALENT CIRCULATING DENSITY (ECD) AT DEEP WATER DRILLING |
摘要 |
FIELD: oil and gas industry.SUBSTANCE: invention is related to oil well drilling. The method for provision of substantially permanent mud flow characteristics within the temperature range from about 120°F (49°C) up to about 40°F (4°C) includes addition to drilling mud of an additive that contains the product of carboxylic acid reaction having at least two carboxyl fragments and polyamine with at least two functional amine groups provided that the additive does not contain alkoxylated alkylamides and/or amides of fatty acids. The composition consists of the product of carboxylic acid reaction having at least two carboxyl fragments and polyamine with at least two functional amine groups provided that the additive does not contain alkoxylated alkylamides and/or amides of fatty acids. The oil-based drilling mud contains the above composition.EFFECT: improving efficiency of rheology regulation within the wide temperature range for horizontal drilling and deep water areas.47 cl, 4 ex, 5 tbl |
申请公布号 |
RU2514866(C2) |
申请公布日期 |
2014.05.10 |
申请号 |
RU20100140904 |
申请日期 |
2009.02.11 |
申请人 |
EHLEMENTIZ SPESHIEHLTIZ, INK. |
发明人 |
DINO DEHVID |
分类号 |
C09K8/32;E21B21/14;E21B43/22 |
主分类号 |
C09K8/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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