Corrosion inhibiting clay stabilizer and its production process and usage
A clay stabilizer and corrosion inhibition technology, applied in drilling equipment and other directions, can solve problems such as oil layer damage and pipeline corrosion, and achieve the effects of low cost, simple production method and simple use method
Inactive Publication Date: 2004-10-20
王国瑞
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- Abstract
- Description
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- Application Information
AI Technical Summary
Problems solved by technology
However, the current corrosion-inhibiting clay stabilizers will cause corrosion to injection equipment and pipelines, especially for long-term use in water injection systems, which will cause serious corrosion to pipelines, and the injection of corrosion products into the formation will cause damage to the oil layer
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0012] Embodiment 1, this corrosion-inhibiting clay stabilizer is composed by weight percent: 1% ethylenediamine, 3% hydrochloric acid, 1% lauryl ammonium chloride, 9% ammonium chloride, 1.5% ammonium chloride Sodium nitrate, 0.2% sodium hydroxide, the balance water.
Embodiment 2
[0013] Embodiment 2, this corrosion-inhibiting clay stabilizer is composed by weight percent: 5% ethylenediamine, 9% hydrochloric acid, 3% lauryl ammonium chloride, 15% ammonium chloride, 4.5% ammonium chloride Sodium nitrate, 0.45% sodium hydroxide, the balance water.
Embodiment 3
[0014] Embodiment 3, this corrosion-inhibiting clay stabilizer is composed by weight percent: 3% ethylenediamine, 6% hydrochloric acid, 1.5% lauryl ammonium chloride, 12% ammonium chloride, 3% ammonium chloride Sodium nitrate, 0.3% sodium hydroxide, the balance of water.
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The corrosion inhibiting clay stabilizer consists of ethylenediamine 1-5 wt%, hydrochloric acid 3-9 wt%, ammonium dodecyl chloride 1-3 wt%, ammonium chloride 9-15 wt%, sodium nitrite 1.5-4.5 wt% and sodium hydroxide 0.2-0.45 wt% except water. The production process includes setting ethylenediamine in the reactor, dropping hydrochloric acid slowly at the temperature of -15 to -5 deg.C; and adding the other components under stirring and at the temperature of -15 to -5 deg.c to obtain the corrosion inhibiting clay stabilizer. The corrosion inhibiting clay stabilizer has excellent corrosion inhibiting and swelling preventing performance.
Description
1. Technical field: [0001] The invention relates to a corrosion-inhibiting clay stabilizer used in oilfield production, in particular to a corrosion-inhibiting clay stabilizer and a production method and application method thereof. 2. Background technology: [0002] The corrosion-inhibiting clay stabilizer currently used in oilfield production is formulated into an aqueous solution and then injected into the formation through injection equipment and pipelines. However, the current corrosion-inhibiting clay stabilizers will cause corrosion to injection equipment and pipelines, especially for long-term use in water injection systems, which will cause serious corrosion to pipelines, and the injection of corrosive substances into the formation will cause damage to the oil layer. 3. Contents of the invention: [0003] The invention provides a corrosion-inhibiting clay stabilizer with corrosion-inhibiting performance, a production method and a use method thereof. [0004] The c...
Claims
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Inventor 王国瑞
Owner 王国瑞