Camellia saponin type oilfield foaming agent and preparation method and application thereof

A technology of camellia oleifera saponin and foaming agent, which is applied in the direction of chemical instruments and methods, chemical recovery, drilling compositions, etc., and can solve the problems of temperature resistance, salt resistance, acid resistance, poor stability, high price, groundwater, and geological environment pollution and other problems, to achieve the effect of high foaming ratio, long foam stabilization time and avoiding damage

Active Publication Date: 2013-04-24
青田中野天然植物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] China has developed rapidly in development, research on surface chemical properties, and expansion of application scope, but there is still a big gap with foreign countries. Although they have the advantages of high interfacial activity, they all have temperature resistance, salt resistance, acid resistance and Poor stability in the formation and other disadvantages, and the price is generally high, especially these surfactants are mainly obtained through chemical synthesis methods, long-term large-scale use has caused serious environmental pollution to groundwater, geology, etc.

Method used

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  • Camellia saponin type oilfield foaming agent and preparation method and application thereof
  • Camellia saponin type oilfield foaming agent and preparation method and application thereof
  • Camellia saponin type oilfield foaming agent and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (a) Add 300 kilograms of commercially available liquid natural plant-source camellia saponin (in terms of solid content), 15 kilograms of coconut oil diethanolamine, 30 kilograms of amino ether alkyl glycosides, and lauryl betaine respectively in a 1500L reactor. 15 kg, heated to a temperature of 60-70°C, stirred for 2 hours under normal pressure, and mixed uniformly to obtain a mixed solution.

[0053] (b) Add 3 kg of dodecyl dimethyl amine oxide to the mixture obtained in (a), heat to 70-80°C, stir for about 1 hour, and when the temperature drops to 40-50°C, add water dropwise to measure When the Baume degree reaches the requirement as the end point, promptly obtain about 1210 kilograms of natural green camellia oleifera saponin type oil field foam agent with a solid content of 30%.

Embodiment 2

[0055] (a) Add 300 kilograms of commercially available liquid natural plant source camellia saponin (in terms of solid content), 3 kilograms of coconut oil diethanolamine, 30 kilograms of amino ether alkyl glycosides, and lauryl betaine respectively in a 1500L reactor. 30 kg, heated to a temperature of 70-80°C, stirred under normal pressure for 2 hours, and mixed uniformly to obtain a mixed solution.

[0056] (b) Add 1.5 kg of dodecyl dimethyl amine oxide to the mixture obtained in (a), heat to 80-90°C, stir for about 1 hour, and when the temperature drops to 40-50°C, add water dropwise to measure When the degree of Baume reaches the requirement as the end point, it is about 1215 kilograms of natural green camellia oleifera saponin type oil field foam agent with a solid content of 30%.

Embodiment 3

[0058] (a) Add 300 kilograms of commercially available liquid natural plant-source camellia saponin (in terms of solid content), 30 kilograms of coconut oil diethanolamine, 3 kilograms of amine ether alkyl glycosides, and lauryl betaine respectively in a 1500L reactor. 30 kg, heated to a temperature of 70-80°C, stirred under normal pressure for 2 hours, and mixed uniformly to obtain a mixed solution.

[0059] (b) Add 6 kg of dodecyl dimethylamine oxide to the mixture obtained in (a), heat to 90-100°C, stir for about 0.5 hours, and when the temperature drops to 50-60°C, add water dropwise to measure When the Baume degree reaches the requirement as the end point, promptly obtain about 1230 kilograms of natural green camellia oleifera saponin type oil field foam agent with a solid content of 30%.

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Abstract

The invention relates to a camellia saponin type oilfield foaming agent and a preparation method and application thereof. The oilfield foaming agent comprises the following components in part by mass: 100 parts of camellia saponin based on the solid content, 1 to 10 parts of cocoanut oil diethanol amide, 1 to 10 parts of amine ether alkyl glucoside, 1 to 10 parts of dodecyl betaine, and 0.5 to 2 parts of lauryl dimethy amine oxide, wherein the camellia saponin is natural plant source camellia saponin or structure-modified camellia saponin. The camellia saponin type oilfield foaming agent is used as an oilfield foaming agent in oil recovery, has the characteristics of acid, alkali and salt resistance, temperature resistance, high foam expansion ratio, long stable foam time and the like, can meet oil extraction requirements under different geological and weather conditions, cannot pollute an oilfield soil layer employing the foaming agent, can prevent a chemically synthesized foaming agent from harming the oilfield stratum, and has remarkable environmental protection characteristic.

Description

(1) Technical field [0001] The present invention relates to the technical field of oilfield chemicals, and specifically relates to a novel oilfield foaming agent and its preparation method and application. It uses natural plant sources ~ camellia oleifera saponin or modified camellia oleifera saponin as the matrix raw material, and is formed through compatibility optimization and compounding Camellia oleifera saponin type oilfield foaming agent is used in oilfield drilling, well completion, oil production, water injection, enhanced oil recovery and gathering and transportation. (2) Background technology [0002] Petroleum resources are an important strategic resource. With the deepening of exploration and development, the difficulty of mining gradually increases. After primary oil recovery (depending on the original energy of the oil layer, the general recovery rate is only 5%-10%, making 90% Around the proven oil reserves are left underground), secondary oil recovery (suppl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K8/584
CPCY02P20/584
Inventor 来虎钦朱伯荣黄重水周瑛
Owner 青田中野天然植物科技有限公司
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