The Comparision Between Physical and Chemical Water Treatment Methods
| Comparison Item | Physical water treatment | Chemical water treatment |
| ROI | No need for secondary investment. Short investments return cycle. | Short duration and need continuous investment. |
| Energy conservation and emission reduction | De-scaling and anti-scaling. Maintain efficient heat exchange, saving energy and increasing production efficiency. No emissions, no pollution. | During the scaling process, it seriously affects the efficiency of heat exchange and wastes energy. And equipment needs a lot of water to dilute and wash, which wastes water resources. |
| Impact on equipment | Continuous working. It can not only remove scale, but also effectively avoid corrosion under equipment scale, extend the service life of equipment. | Treat only when scale is severe, ignoring the huge load of equipment in the process of scale accumulation, greatly shorten the service life of equipment/system. |
| Equipment maintenance and management | Reduce the times of equipment maintenance and no need for management. | Complex periodic maintenance, and with the cleaning of scale is not thorough, the times of maintenance increases year by year. Special person is required to take charge, waste time and productivity. |
| Side effects | Using permanent magnet technology, do not changing water quality. | Residual chemicals in water seriously affect water quality. Seriously affect on the living environment of human beings. |
The After Sales Service of AYG
(1) After the product supply contract takes effect, the manufacturer provides instructions and basic installation drawings along with the equipment, and professionals will provide online technical guidance.
(2) After the equipment is put into normal use, the manufacturer will carry out follow-up service in the initial stage and visit from time to time.
(3) Within one year normal producing, manufacturers provide some vulnerable parts and matching parts free of charge and at the same time provide technical services. After one year of normal produce, vulnerable parts and matching parts will be replaced at a cost.
(4) After the machine is installed, AYG technical engineers will provide free technical training. Buyers need to assign personnel to learn how to use and maintain the machine. AYG provides free long-distance technical services for life, and paid door-to-door technical services.
(5) AYG provides lifelong service to the products & services.
The General Problems and Solutions of Long Stroke Pumping Unit
| Problems | Reasons | Solutions |
| Pumping unit working unstable, such as vibration | Too much gas accumulated in the wellhead | Remove accumulated gas |
| Cement foundation uneven | Pad the cement foundation or reinstall it if necessary | |
| Base of pumping unit uneven | Pad the base and tighten the foot nut | |
| Foot nut of pumping unit looseness | Tighten the foot nut | |
| Pumping unit suspension center misaligned with wellhead | Adjust pumping unit to align suspension center to wellhead | |
| Rod overload | Inspect the downhole Load based on suspension Load | |
| · Suspension wheel bracket retaining bolt unscrewed | · Check retaining bolts and tighten nuts | |
| · Transition wheel fault | Inspect transition wheel | |
| · Guide wheel and guide rail of counterweight box fault | Check guide wheel and guide rail of counterweight box | |
| Pumping unit shaking | Problems with downhole pumps | Check or replace pump |
| Friction between sucker rod and tubing | Check and repair | |
| Traction belt operate abnormal
Rod Connector skew |
The tightness of the two traction belts different | Adjust the traction belt to make the two traction belts tighten equally |
| The connection of the traction belt looseness | Check the traction strap connection | |
| Traction belt adjusting nut not tightened | Tighten the screw nut | |
| Link flabby between rod hanger and rod | Clip specifications incorrect | · Replace the appropriate clip |
| · Clip teeth wear | · Replace the clip | |
| Starting difficulty or reciprocating power different obviously | Counterweight box weight insufficient | Increase counterweight |
| Traction power insufficient | Check the electromotor and transmission system | |
| Electrical control system fault | Check electrical control system | |
| Distribution box abnormality | Control system fault | Check and troubleshoot |
| Power train overheated and noisy | Power train retaining bolt looseness | Tighten the power train retaining bolt |
| Power train bearing worn | Replace the bearing | |
| Power train internal fault | Troubleshoot | |
| Brake Fault | Brake rigging fault | Check and troubleshoot |
Safety Regulations When Operating AYG Long Stroke Pumping Unit
(1) Pumping units are strictly forbidden to enter the body when they are in operation. When they need to enter the body due to maintenance and troubleshooting, they must be cut off the energy and shut down. It is strictly forbidden to start the machine when there is someone on the safety table.
(2) It is forbidden to touch or approach the moving parts of the pumping unit, and it is necessary to remove the useless items that affect the production or safety.
(3) It is strictly forbidden to carry out equipment maintenance and inspection, lubricating oil inspection, refueling and adjustment while pumping units are running or not yet stable.
(4) It is strictly forbidden to adjust the electronic control cabinet at will. It is strictly forbidden to adjust the parameters of the pumping units at will.
(5) Cables, electrical components and electrical equipment should be well insulated and properly protected.
(6) Field workers shall be safety protected according to the provisions of labor protection and safety. Safety and protection measures should be strictly implemented when the workers work high above the ground.
The Notes of Counterweight Box
When the equipment is stopped, the counterweight box must be placed at the bottom stop point of the tower. Only after confirming the traction belt is correctly connected to the rod hanger and the connector of the counterweight box, the counterweight box can run up and down.
(1) The traction belt of the pumping unit is made of steel wire and nylon rubber composite. The connection of the traction belt with sucker rod is splint pin and adjustable nut. And the length of the connect joint can be adjusted.
(2) According to the pump hanging depth and pump type of the downhole pump, the weight of the pump, it can start trial operation by pushing the button in the control system of the operating electrical appliances to move the counterweight box upward. If the electromotor is difficult to drive, gradually adjust the weight until the drive is steady.
(3) After confirming that the top and bottom running of the counterweight box and the position of the top and bottom dead centers of the rod of the sucker rod are correct, the normal working operation can be carried out.
(4) When starting the internal counterweight box up and down after removal of traction force, it should be carried out at a slow speed.
How to Maintain the Long Stroke Pumping Unit
(1) After install completed, it is necessary to strictly check the correctness and reliability of the transmission system and connection structure. Then the machine can be started five minutes for test, before normal work.
(2) The guide wheel is made of cast nylon and does not need grease lubrication.
(3) There are sufficient greases in the transition wheel bearings, enough for one year.
(4) New install machine within 24 hours should be observed and recorded its working condition at any time. And it is necessary to stop and inspect in time if any abnormality is found. After confirmation of normal, the machine can be restarted.
(5) After 72 hours of operation, it is necessary to stop the machine and check every component, structure connection part, fixing point of machine base, power supply wire, electronic control box, etc.
(6) After seven days of operation, it is necessary to stop the machine and check the transmission parts, the guide counterweight mechanism, connecting fastening parts and the suspension traction system, etc.
(7) The machine body should be painted anti-corrosion and anti-rust paint on the surface according to the requirements of environmental protection on site.
How to Install the Long Stroke Pumping Unit
Except the electrical control system needs to be installed on the production site, the other transmission, traction mechanism and components are installed before leaving the factory. The machine base and machine body are dismantled during transportation. Machine base needs to be adjusted on site and connected to machine body after fixation. Then, adjust the center of the traction belt and the sucker rod aligning.
(1) The cement foundation shall be tampered and installed according to the requirements of the foundation drawings, and it require solid and level.
(2) Fixing the cement foundation which made of cement and reinforced concrete, on the building foundation. The level of the upper plane of the cement base shall not exceed 5 mm, height equal to wellhead flange. And it shall not be greater than 10mm with the wellhead center.
(3) After the cement foundation is installed, the lower body can be vertically suspended on the cement base. Pay attention to prevent the screw part of the foundation bolt from being damaged when lifting the base. After the lower body of the whole machine is installed, it can connect with the upper body.
(4) Lift the rod up and adjust the anti-impulse distance by using operation machine, then fix it on the wellhead with square clips.
(5) Confirm the transmission system electronically correct after the electrical control box energized.
(6) In the condition of the traction belt inside the tower of pumping unit is not connected with the counterweight box, point the powertrain to adjust the external traction belt align with the center of the wellhead rod, deviation shall not exceed 10mm. Then tighten the nuts of all foot bolts. After that, point the powertrain to move the external traction belt up to the top dead point. Then connect the internal counterweight box with the joint of the internal traction belt by using the internal rope hanger.
(7) After confirming that the two ends of the traction belt are connected correctly and the stroke and stroke time are correct, it can be ran at low speed to check whether the connection between traction belt and rod of pumping unit and internal counterweight box are in correct state. If there is any difference, adjust the connecting nuts at both ends of the traction belt.
(8) After the confirmation of the test operation, it is necessary to adjust the stroke speed and length of the rod according to the well condition and the requirements of oil production technology, and then the pumping unit will enter normal operation.
The Structural Advantage of AYG Long Stroke Pumping Unit
The Smart Long Stroke Pumping Unit is designed with stereo tower structure. It consists of engine base, lower bearing bracket, adjusting tie rod, internal counterweight balancing guide mechanism, Internal and external traction belt, transition wheel and adjustable support mechanism, rod connecter, upper frame and safety table, power drive mechanism device and protective cover. All power transmission system, reciprocating motion system and balanced guidance system are set inside the tower structure. The top of the pumping unit is fully closed, with advantages of environmental protection, safety, beauty and practicability.
All transmission components are modular design, no crane is required for maintenance, replacement and installation, which greatly reduce construction cost and improve safety. The driven belt is specially designed by composite rubber with steel wire inside and synthetic nylon rubber ribbon structure, with advantages of high reliability, stable transmission and low working noise.
In order to ensure the smooth running of pumping unit and eliminate the reciprocating motion vibration of sucker rods, special guide rails are designed on both sides of the counterweight box. The guide wheel is made of steel wire and nylon rubber composite, an adjustable structure is also designed on the guide wheel assembly to keep the best clearance between the guide wheel and the guide rail in reciprocating motion.
The machine frame has a ladder type structure design, and a workbench with a guardrail is arranged on the top to facilitate the staff to climb and perform maintenance inspection on the equipment. At the same time, detachable angle steel is installed at the front and the back of the bottom of the rack, which makes the maintenance / inspection / moving the weight box more convenient.
Resources
What is Pumping Unit?2019-11-02 - 01:10
How the AYG Anti Scale Water Treatment Device Works in Oilfield2019-10-25 - 15:06
The Comparision Between Physical and Chemical Water Treatment Methods2019-10-19 - 08:45
The After Sales Service of AYG2019-10-06 - 04:11
The General Problems and Solutions of Long Stroke Pumping Unit2019-10-06 - 04:08