Shaftplug removal agent for restoring gas wellreservoirpermeability
A technology of permeability and plugging remover, which is applied in the field of gas field development, can solve the problem of weak corrosion of plugging remover, and achieve the effect of stable product performance, improved performance and weak corrosion
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Embodiment 1
[0016] A wellbore plug-removing agent for repairing the permeability of gas well reservoirs, comprising the following main components: alcohol ether compound, formaldehyde, fluorocarbon surfactant, glucoside, chelating agent, sulfamic acid and water.
[0017] Described alcohol ether compound is ethylene glycol-propyl ether;
[0018] Described chelating agent is EDTA.
[0019] The wellbore plug-removing agent for repairing the permeability of gas well reservoirs includes the following components by weight percentage: alcohol ether compound: 17%, formaldehyde: 0.25%, fluorocarbon surfactant: 0.007%, glucoside (APG) 9%, chelating agent: 4%, sulfamic acid 7%, water: balance.
Embodiment 2
[0021] A wellbore plug-removing agent for repairing the permeability of gas well reservoirs, comprising the following main components: alcohol ether compound, formaldehyde, fluorocarbon surfactant, glucoside, chelating agent, sulfamic acid and water.
[0022] Described alcohol ether compound is ethylene glycol-butyl ether;
[0023] Described chelating agent is EDTA.
[0024] The wellbore plug-removing agent for repairing the permeability of gas well reservoirs includes the following components by weight percentage: alcohol ether compound: 15%, formaldehyde: 0.5%, fluorocarbon surfactant: 0.005%, glucoside (APG) 15%, chelating agent: 0.5%, sulfamic acid 8%, water: balance.
Embodiment 3
[0026] A wellbore plug-removing agent for repairing the permeability of gas well reservoirs, comprising the following main components: alcohol ether compound, formaldehyde, fluorocarbon surfactant, glucoside, chelating agent, sulfamic acid and water.
[0027] The alcohol ether compound is any one of ethylene glycol-diethyl ether, ethylene glycol-propyl ether, ethylene glycol-butyl ether or diethylene glycol-diethyl ether;
[0028] Described chelating agent is EDTA.
[0029] The wellbore plug-removing agent for repairing the permeability of gas well reservoirs includes the following components by weight percentage: alcohol ether compound: 25%, formaldehyde: 0.2%, fluorocarbon surfactant: 0.008%, glucoside (APG) 8%, chelating agent: 5%, sulfamic acid 6%, water: balance.
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