Antifreeze foaming agent and preparation method thereof

A foaming agent and formula technology, applied in the field of antifreeze foaming agent and its preparation, can solve the problems of normal foaming and freezing of aqueous solution, and achieve the effect of reducing the possibility of freezing and wide applicability

Active Publication Date: 2019-02-15
铜陵高新产业园发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the freezing point of water is 0°C. When the aqueous solution of surfactant is poured into the gas well, due to the low underground temperature, the aqueous solution may freeze, resulting in the failure of normal foaming.

Method used

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  • Antifreeze foaming agent and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1: a kind of antifreeze foaming agent, it is prepared by the following steps: ethylene glycol, glycerin, DMF, triethanolamine, PEO-PPO-PEO triblock copolymer (F127 type), polyoxyethylene castor oil and Mix and disperse evenly with deionized water, add sodium carboxymethylcellulose, c-NMF (cis-N-methylformamide) linear tetramer and metal organic framework material MOF-5, stir and disperse evenly to obtain a solution, Take the filtrate by filtration; raise the filtrate from room temperature to 90°C at a heating rate of 50°C / hr and keep it warm for 1.5hr, then cool it down to -60°C at a cooling rate of 50°C / hr and keep it warm for 1.5hr, then Make it warm up to room temperature at a heating rate of 50°C / hr and keep it warm for 1.5hr, then filter again, and the filtrate is an antifreeze foaming agent.

[0016] In terms of mass percent, this antifreeze foaming agent comprises the following components: 33% ethylene glycol, 3% glycerin, 3% DMF, 1.8% triethanolamine,...

Embodiment 2

[0017] Embodiment 2: a kind of antifreeze foaming agent, the difference with embodiment 1 is, by mass percentage, this kind of antifreeze foaming agent comprises following components: 33% ethylene glycol, 2% glycerin, 2% DMF, 1.5% triethanolamine, 0.08% sodium carboxymethylcellulose, 0.1% linear tetramer of c-NMF, 0.1% metal organic framework material MOF-5, 24% PEO-PPO - PEO triblock copolymer (type F127) and 5% polyoxyethylene castor oil, the balance being deionized water.

Embodiment 3

[0018] Embodiment 3: a kind of antifreeze foaming agent, the difference with embodiment 1 is, by mass percentage, this kind of antifreeze foaming agent comprises following components: 33% ethylene glycol, 4% glycerin, 4% DMF, 2.0% triethanolamine, 0.12% sodium carboxymethylcellulose, 0.2% linear tetramer of c-NMF, 0.2% metal organic framework material MOF-5, 27% PEO-PPO - PEO triblock copolymer (type F127) and 7% polyoxyethylene castor oil, the balance being deionized water.

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Abstract

The invention discloses an antifreeze foaming agent and a preparation method thereof. The antifreeze foaming agent comprises the following components in percentage by mass: 33% of ethylene glycol, 2-4% of glycerin, 2-4% of DMF, 1.5-2.0% of triethanolamine, 0.08-0.12% of sodium carboxymethylcellulose, 0.1-0.2% of a linear tetramer of c-NMF, 0.1-0.2% of a metal organic framework material MOF-5, 24-27% of a PEO-PPO-PEO triblock copolymer, 5-7% of polyoxyethylene castor oil and the balance of deionized water. The antifreeze foaming agent reduces the icing possibility of a foaming agent during use.

Description

technical field [0001] The invention relates to an antifreeze foaming agent and a preparation method thereof. Background technique [0002] When a gas well is in normal production, the liquid is carried by the gas to the surface in the form of droplets, the gas is in a continuous phase and the liquid is in a discontinuous phase, and when the flow rate of the gas phase is too low to provide enough energy to make the liquid in the wellbore flow out of the wellhead continuously , the liquid will flow in the opposite direction to the gas flow and accumulate at the bottom of the well, and there will be fluid accumulation in the gas well and gradually accumulate. Foam drainage gas recovery technology is a production-aiding technology researched for the development of water-producing gas fields. The main principle of this technology is to inject foaming agent (surfactant) Full contact with the effusion produces a large amount of relatively stable low-density water-containing foam,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/584
CPCC09K8/584
Inventor 饶会均
Owner 铜陵高新产业园发展有限公司
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