Compound plugging agent is used to be injected into the oil or the vicinity of downhole, it can generate enough set according to the concentration of chlorine dioxide, chlorine dioxide has a strong oxidation, oxidative degradation of the near bottom zone of the polyacrylamide, xanthan gum, guar gum, sesbania gum and other polymers, the viscosity decreased greatly, the liquidity is better from the bottom, easy to remove, chlorine dioxide concentration has adjustability, stable quality, convenient transportation, storage, less corrosion of the equipment and piping.

Water damage treatment agent for oilfield development in the high clay content of the reservoir, the reservoir structure loose cemented poor performance, low-permeability water-sensitive, water lock, changes in the physical properties of crude oil and operating pollution capacity to reduce the problem.

Mutual solvent mainly composed of ethylene oxide, n-butanol, branched-chain alcohols, surfactants, catalysts and solvent alcohol is synthesized by the chemical reaction may be an arbitrary ratio in the acid, water, oil miscible.

The antiscalant disperses the insoluble inorganic salts in water , prevent and interfere with the insoluble inorganic salts in the precipitation of the metal surface, the scaling function, and to maintain the metal devices with good heat transfer effect of a pharmaceutical, mainly with epoxyresin and specific amino resin as the base material, adding the right amount of rust, corrosion, and other additives formulated, as a single component.

Crude oil pour point depressant role is used to influence the development process of the wax crystal mesh structure, so that the freezing point depression of crude, but it must be pointed out that the pour point depressant can not inhibit wax crystal precipitation, but can only change the wax crystal morphology, also joined the pour point depressant, the cloud point of the crude oil is not changed, only the shape of the wax crystals become loose wax crystal structure, after a certain shear force is applied, its mesh structure is easy to be damaged, or does not form a mesh structure, thus increasing the flow of crude oil to reduce the pour point of crude oil.

The demulsifier is a non-ionic surface active agent, and is a pale yellow liquid at the room temperature , dissolved in water or ethanol ,can be mixed in any proportion with water, become emulsion meet water, finished with methanol or ethanol as a solvent, mainly used demulsification and dehydration of crude oil or crude oil viscosity reduction, the refinery for desalination dehydration.