Rare earth permanent magnet wax and scale removal equipment
The thermodynamic conditions such as temperature and pressure injected into the water body change, resulting in a change in the state of ion balance in the water, forming a supersaturated solution. Analysis of the scaling group shows that the crystallization increases and then precipitates.
Reasons for scaling
Due to the incompatible composition of scaling ions, water bodies mix with each other, resulting in over saturation of scaling components and precipitation.
The combined effect of two reasons makes it possible for various forms of scale to form in underground reservoirs, production wells, and various parts of transportation pipelines in oil fields.
Working principle of magnetization descaling
(1) After the fluid is subjected to neodymium iron boron high-strength magnetic magnetization treatment, the hydrogen bonds of water molecules in the fluid undergo both angle and length deformation. The hydrogen bond angle decreases from 105 degrees to around 103 degrees, causing a series of changes in the physical properties of water and greatly improving its activity and solubility.
Working principle of magnetization descaling
(2) By utilizing the action of a high-strength magnetic field to change the surface charge of small particles in water, they can generate same-sex repulsion and anisotropic attraction, thereby forming suspended aggregates (commonly known as virtual scales).
Working principle of magnetization descaling
(3) Suspended aggregates are granular crystals that transform from orthorhombic needle shaped crystals to monoclinic crystals. Suspended aggregates change their surface charge due to magnetization, causing repulsion and attraction, which leads to the destruction of their mutual adhesion and aggregation characteristics, making it difficult for them to aggregate into hard scale, corrosion scale, etc. on the heated surface or pipe wall.
Working principle of magnetization descaling
(4) Due to the increase in dipole distance of water molecules in the rinjection water, the attraction between water molecules and salt positive and negative ions increases, leading to the gradual cracking, loosening, and self detachment of existing old scale on the heating surface or pipe wall, as well as sedimentary scale in the reservoir.
Reasons for wax deposition
During the gathering and transportation process of high wax crude oil, due to the cooling of the gathering and transportation pipelines, wax components gradually precipitate and form small wax crystals. Dispersed asphaltene also adheres to the wax crystals or co crystallizes to form dispersed phases, while liquid hydrocarbons and colloidal continuous phases form dispersed suspension systems.
When the temperature drops below the freezing point, wax crystals unite to form a spatial network structure, encapsulating liquid hydrocarbons and causing the crude oil to lose its fluidity. This leads to an increase in crude oil viscosity, pressure loss in pipelines, a decrease in effective transportation capacity, and even blockage of oil pipelines.
Principle of magnetization anti wax effect
(1) The high-intensity magnetic field arranges the magnetic nuclei in paraffin according to energy level rules and precesses around the magnetic field. This regular arrangement and precession kinetic energy of the magnetic nuclei increase the spacing between paraffin molecules during the crystallization process, making it difficult to overcome dispersion forces and form a three-dimensional network structure.
Principle of magnetization anti wax effect
(2) After the regular arrangement of wax molecules, more crystal nuclei will appear in the same crude oil environment. During the crystallization process, the wax molecules in the crude oil will transform from liquid phase to solid phase faster, while releasing latent heat, which slows down the temperature of the crude oil during the flow process.
Principle of magnetization anti wax effect
(3) The more crystal nuclei there are, the smaller the grain size, which is conducive to forming colloids with oil, being carried away by flowing crude oil, and not aggregating into a three-dimensional network structure, reducing sedimentation and achieving the effect of wax prevention and viscosity reduction.
Electron microscopy analysis
unmagnetized
The crystallization state of scale without magnetization electron microscopy (orthorhombic crystal system content ≥ 54%, regular crystal arrangement, easy formation of hard scale) is characterized by the intersection of four sides, which easily forms hard scale from point to surface (Severe formation commonly known as chocolate chips).
Single magnetization
The crystallization state of scale under a single magnetization electron microscope using rare earth permanent magnet descaling and anti scaling equipment (monoclinic crystal content ≥ 83%, irregular crystal arrangement, easy formation of loose soft scale, easy to remove) is characterized by a radial distribution of intersecting front and back, and loose fission after friction with each other.
Multiple magnetizations
After multiple magnetization electron microscopes using rare earth permanent magnet descaling and anti scaling equipment, the crystalline state of scale (monoclinic crystal system is more chaotic, forming tiny particles floating in water) is characterized by a flocculent precipitate, commonly known as a mud like substance, visible to the naked eye.
Eight advantages of Huaci Technology
1:reduce costs
Compared to other water treatment methods, rare earth permanent magnet descaling equipment with similar equipment or traditional softening water treatment methods has a 5-year warranty and an advantage in cost sharing annually
2:Reduce losses
Reduce the number of pump blockages caused by scaling in the production pipes of oil wells, and stabilize the oil production volume.
3:Reduce energy consumption
After use, it can ensure the normal and stable data of the oil production pump, and other electrical equipment can use Hertz to reduce power consumption and energy consumption.
4:Environmental emissions
No need to connect to electricity, completely eliminating the addition of chemical agents, will not cause groundwater pollution.
5:Wide applicability
Unrestricted by pipe materials and water quality, suitable for any location in the water circulation system
6:Non disruptive
The installation and operation process of the equipment does not have any impact on the normal production and operation of the oil production system
7:non-corrosiveness
This technology is a purely physical method that does not add any chemical agents and always maintains the composition of the liquid unchanged.
8:Anti scaling content
Reduce the formation of microbial scale and sludge in the system; Eliminate the growth of carbonate, silicate, sulfate, and phosphate scale in the system, and remove the old scale formed in the original pipe.
Installation diagram
Please comply with the installation precautions for the equipment.
Attention
The temperature should not exceed 300 ℃
Attention
Conventional equipment cannot be tilted or inverted
Attention
Prohibit strong collisions and impacts
Attention
Two short circuits of the same material should be installed at the inlet and outlet of the equipment to facilitate observation of the application effect after connection