Environmental-friendly foam drainage bar, and preparation method thereof

A foam drainage, environment-friendly technology, applied in chemical instruments and methods, drilling compositions, etc., can solve the problems of surfactant residues, difficulty in liquid foam discharge, etc., and achieves simple operation, good foaming ability, portable handy effect

Active Publication Date: 2016-12-21
北京众博达石油科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the liquid foam drainage agent is affected by objective conditions during construction, such as power supply, filling equipment and other auxiliary equipment such as water resources.
In more remote and unattended wells, it is relatively difficult to inject liquid foam displacement agents
Surfactants can recycle organic pollutants in the environment, carry out environmental restoration, and promote the biodegradation of organic pollutants, but surfactants also inevitably remain in the environment

Method used

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  • Environmental-friendly foam drainage bar, and preparation method thereof
  • Environmental-friendly foam drainage bar, and preparation method thereof

Examples

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preparation example Construction

[0020] The product of the present invention is to provide an environment-friendly and high-efficiency solid foam drainage agent for gas wells under high temperature, high salinity, and high condensate oil environment, and its foaming ability, foam stabilizing ability, and liquid-carrying ability all have good performance. The corresponding preparation method of the present invention adopts a continuous extrusion molding process, which is simple in operation, can be produced continuously, and has excellent qualities such as smooth product and not easy to break. An environment-friendly foam drainage stick is characterized in that it includes the following raw material components: cocamidopropyl betaine, sodium lauroyl isethionate, sodium lauroyl glutamate, fatty alcohol polyoxyethylene ether, polyethylene glycol Glycol stearate, urea, citric acid, sodium bicarbonate, and sodium carbonate. The weight content of the raw material components is as follows: 30-35% of cocamidopropyl b...

Embodiment 1

[0023]Embodiment 1: an environment-friendly foam drainage stick, which is made up of the following raw materials in mass percent: sodium lauroyl isethionate 20%, sodium lauroyl glutamate 15%, cocamidopropyl betaine 30% , fatty alcohol polyoxyethylene ether 15%, polyethylene glycol stearate 10%, citric acid 2%, sodium bicarbonate 2%, sodium carbonate 1%, urea 5%. The preparation method of environment-friendly high-efficiency foam solid foam draining agent bar, comprises the following steps: (1) sodium lauroyl glutamate, cocamidopropyl betaine, macrogol stearate, lemon One or more components of acid, sodium bicarbonate, sodium carbonate, etc. are weighed separately and set aside. (2) One or more components such as sodium lauroyl isethionate, fatty alcohol polyoxyethylene ether, urea, etc. are pulverized by a pulverizer, and weighed according to the stated ratio respectively, and set aside. (3) Put the weighed raw materials into the mixer and mix them thoroughly, then take them ...

Embodiment 2

[0024] Embodiment 2: an environment-friendly foam drainage stick, which is made up of the following raw materials in mass percent: sodium lauroyl isethionate 10%, sodium lauroyl glutamate 15%, cocamidopropyl betaine 30% , fatty alcohol polyoxyethylene ether 18%, polyethylene glycol stearate 17%, citric acid 1%, sodium bicarbonate 1%, sodium carbonate 1%, urea 7%. (1) one or more components of sodium lauroyl glutamate, cocamidopropyl betaine, polyethylene glycol stearate, citric acid, sodium bicarbonate, sodium carbonate, etc. Weigh and reserve separately. (2) One or more components of sodium lauroyl isethionate, fatty alcohol polyoxyethylene ether, urea, etc. are pulverized by a pulverizer, weighed according to the stated ratio, and set aside. (3) Put the weighed raw materials into the mixer and mix them thoroughly, then take them out for later use. (4) Put the mixed raw materials into the extruder, cut them according to a certain length after extrusion molding, and form a r...

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Abstract

The invention discloses an environmental-friendly foam drainage bar, and a preparation method thereof. The environmental protection performance of the environmental-friendly foam drainage bar is used for referring that the environmental-friendly foam drainage bar is prepared from biodegradable raw materials. Foam drainage is used for referring discharging of well bottom accumulated water or accumulated liquid out of wells via utilization of water-containing or fluid-carrying capability of foam, so that gas recovery factor of gas wells is increased fully. The environmental-friendly foam drainage bar is capable of satisfying requirements of foam draining gas recovery and achieving excellent foam draining effect in field tests because of the excellent foaming ability, foam stabilizing ability, and liquid carrying capacity of the environmental-friendly foam drainage bar. The environmental-friendly foam drainage bar comprises following raw materials: cocamidopropyl betaine, sodium lauryl oxyethyl sulfonate, sodium lauroyl glutamate, fatty alcohol polyoxyethylene ether, polyethylene glycol monostearate, urea, citric acid, sodium bicarbonate, and sodium carbonate.

Description

technical field [0001] The present invention relates to foam drainage technology for natural gas wells, in particular to an environment-friendly foam drainage rod and its preparation method. The water-bearing characteristics and the energy of the bottom of the well discharge the bottom-hole liquid to the outside of the well to achieve the purpose of increasing the production of natural gas wells. The foam drainage rod can satisfy the foam drainage and gas recovery process with its good foaming ability, foam stabilizing ability and liquid-carrying ability in the field test and achieve a remarkable effect of drainage and gas recovery. Background technique [0002] Generally speaking, if gas wells and condensate gas wells are in the middle and later stages of development, due to the reduction of formation pressure, coning of edge and bottom water, fracturing, acidizing and other operational measures, fluid accumulation (formation water, condensate, injected water), which reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/584C09K8/58
CPCC09K8/58C09K8/584
Inventor 顾岱鸿刘广峰邓超甄远常恒远田巍吴云海
Owner 北京众博达石油科技有限公司
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