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In petroleum drilling engineering, the WH1612 fluid end of drilling pumps is a crucial component specifically designed for petroleum drilling projects. Throughout the entire drilling operation, it undertakes the important task of converting mechanical energy into the pressure energy and kinetic energy of drilling fluid, serving as a core component to ensure efficient and safe drilling. It is just like a powerful heart, continuously providing essential power for the entire drilling operation and ensuring that the drilling work proceeds smoothly. Today, let's explore this important piece of equipment together. Basic Structure and Components The WH1612 fluid end of drilling pumps mainly consists of several key components such as the cylinder liner, piston/plunger, mud pump fluid end module，suction valve, discharge valve, and sealing devices. The cylinder liner provides a stable space for the reciprocating motion of the piston or plunger. It is usually made of high-strength alloy steel, possessing excellent compressive and wear-resistant properties to cope with the harsh working environment and high-pressure impacts during the drilling process. The piston and plunger are the core moving parts for converting mechanical energy into the pressure energy of the liquid in the fluid end. Since they need to perform high-speed and reciprocating movements within the cylinder liner, extremely high requirements are placed on the wear resistance, sealing performance, and rigidity of their materials. Generally, high-quality alloy materials are selected and undergo precise processing and special treatments to ensure that they can maintain good working conditions during long-term operation. The mud pump fluid end module, which serves as the mounting carrier for the suction valve and the discharge valve, withstands tremendous pressure and liquid impact. It is manufactured using the upright integral forging process. This structure endows the mud pump fluid end module with extremely high strength and rigidity, effectively preventing deformation and rupture. Moreover, it improves the volumetric efficiency, enabling the drilling fluid to flow in and out of the cylinder liner more smoothly. The suction valve and the discharge valve are like the "gatekeepers" of the fluid end, precisely controlling the inflow and outflow of the drilling fluid. They are usually made of high-strength alloy materials and equipped with high-quality sealing parts to ensure that they can remain tightly closed under high pressure differences, preventing the backflow of the drilling fluid, thereby guaranteeing the working efficiency and stability of the fluid end. The sealing devices are the key defense lines to ensure the normal operation of the fluid end, responsible for preventing the leakage of the drilling fluid between various components. From the seals between the piston and the cylinder liner to those between the valves and the mud pump fluid end module, advanced sealing technologies and high-quality sealing materials such as rubber sealing rings and oil seals are adopted. These sealing parts have good high-temperature resistance, high-pressure resistance, wear resistance, and corrosion resistance properties, effectively reducing the leakage risk and improving the reliability and safety of the equipment.   Working Principle and Working Process The working principle of the WH1612 fluid end of drilling pumps is based on the reciprocating motion of the piston or plunger. When the mechanical energy transmitted from the power end drives the piston to move backward, the volume inside the cylinder liner increases and the pressure decreases. At this time, the suction valve automatically opens under the action of the pressure difference, and the drilling fluid is smoothly sucked into the cylinder liner. As the piston moves forward, the volume of the cylinder liner gradually decreases, and the pressure rises rapidly. The suction valve closes, and the discharge valve opens. The high-pressure drilling fluid is then transported through the discharge valve into the drilling pipeline and further flows to the bottom of the well, completing one working cycle. Through continuous repetition of this cycle, the WH1612 fluid end of the drilling pump can continuously provide a stable high-pressure drilling fluid flow for the drilling operation, realizing the circulation of the drilling fluid in the well, carrying the cuttings from the bottom of the well to the ground, keeping the wellbore clean, and simultaneously providing cooling and lubrication for the drill bit to ensure the smooth progress of the drilling process.   Performance Characteristics High-pressure and large-displacement capabilities: The WH1612 fluid end of drilling pumps is designed with outstanding high-pressure output capabilities, capable of meeting the requirements for high-pressure transportation of drilling fluid in complex drilling conditions such as deep wells and ultra-deep wells. Meanwhile, its relatively large displacement range can be flexibly adjusted according to different drilling operation requirements to ensure that the drilling fluid can circulate at an appropriate flow rate and improve drilling efficiency. Good sealing performance: Thanks to the advanced sealing structure and high-quality sealing materials, the fluid end can still maintain good sealing performance under high-pressure working conditions, effectively reducing the leakage of drilling fluid. This not only reduces the risk of environmental pollution but also improves the overall working efficiency of the equipment and reduces the energy loss and maintenance costs caused by leakage. High reliability and stability: By adopting high-strength materials and precise manufacturing processes, each component of the hydraulic end has excellent durability and anti-fatigue performance. Even during long-term and high-intensity drilling operations, it can operate stably, reducing the probability of malfunctions and providing reliable power support for drilling engineering, thus reducing the shutdown risks and maintenance costs caused by equipment failures. Strong adaptability: It can be flexibly configured and adjusted according to different drilling techniques and formation conditions. Whether it is conventional drilling, directional drilling, or horizontal drilling, the parameters of the fluid end can be optimized to make it perfectly match the entire drilling system and adapt to various complex and changeable drilling operation requirements.   Maintenance and Service Points Regular inspections: Establish a comprehensive regular inspection system to conduct a thorough inspection of all components of the fluid end. This includes checking the wear conditions of the piston and plunger, the sealing performance and opening flexibility of the valves, the scratching or corrosion status of the inner wall of the cylinder liner, and the aging and damage degree of the sealing parts. Through regular inspections, potential problems can be detected in a timely manner, and corresponding maintenance measures can be taken to avoid minor faults from developing into major ones. Lubrication management: Ensuring good lubrication of all moving parts of the fluid end is the key to extending the service life of the equipment. Strictly follow the equipment operation procedures, regularly add an appropriate amount of special lubricating oil to components such as the piston, plunger, and connecting rod, and check the working status of the lubrication system to ensure that the lubricating oil passages are unobstructed. Meanwhile, pay attention to the quality and replacement cycle of the lubricating oil and replace deteriorated or contaminated lubricating oil in a timely manner to ensure good lubrication effects. Cleaning and anti-corrosion: The environment at the drilling site is harsh, and the drilling fluid contains a large number of solid particles and corrosive substances, which are likely to cause pollution and corrosion to the components of the fluid end. Therefore, after each use, the fluid end should be cleaned in a timely manner to remove surface dirt and residual drilling fluid. For parts prone to corrosion, such as the mud pump fluid end module and piston rod, measures such as applying anti-corrosion coatings and installing anti-corrosion bushings can be taken to strengthen anti-corrosion protection and extend the service life of the components. Replacement of wearing parts: The piston, cylinder liner, valve rubber, etc. are wearing parts, and their service lives are affected by multiple factors. Reasonably determine the replacement cycle of wearing parts based on factors such as the usage frequency of the equipment, working pressure, and properties of the drilling fluid.   Common Malfunctions and Troubleshooting Methods Insufficient pressure: Possible causes may include failure of the piston or plunger seals, damage to the suction or discharge valves, blockage by foreign objects in the cylinder liner, etc. Check and replace damaged sealing parts and valves, clean out foreign objects in the cylinder liner, and ensure that all components are working properly to restore the pressure output of the fluid end. Unstable flow: This may be caused by air leakage in the suction pipeline, poor sealing of the valves, uneven movement of the piston or plunger, changes in the viscosity of the drilling fluid, etc. To address these issues, carefully check the connection parts of the suction pipeline and repair air leakage points; check and adjust the valve seals; check the moving parts of the piston or plunger to ensure smooth movement and eliminate flow fluctuation phenomena. Leakage problems: If leakage is found in the fluid end, first determine the leakage location. Common leakage points include areas around the sealing parts and valve connections. For leakage of sealing parts, replace the sealing parts in a timely manner; for leakage at valve connections, check and tighten the connection bolts or replace the sealing gaskets to ensure that the leakage problem is completely resolved.   As a core equipment component in drilling engineering, the performance quality and working status of the WH1612 fluid end of drilling pumps are directly related to the success or failure of the entire drilling operation.   The WH1612 drilling pump is the trademark and model of Cameron Company and has nothing to do with Tianjin Geostar Petroleum Equipment Co., Ltd. Tianjin Geostar mainly provides aftermarket spare parts for the WH1612 fluid end.

Drilling mud pump is the core equipment for petroleum drilling rig package, and following is the installation procedure of drilling mud pump unit. 1. The drilling pump and the base must be placed on a horizontal basis, the pump should be kept as horizontal as possible, and the horizontal deviation should not exceed 3mm, in order to facilitate the correct distribution of lubricating oil at the power end during operation.   2. The position of the pump should be as low as possible, and the position of the drilling mud tank should be raised as much as possible to facilitate suction.   3. The inner diameter of the suction pipe of the pump shall not be smaller than the inner diameter of the connection part of the pump. Before installation, it is necessary to clean the pump suction and pipelines, the suction line must not have air leakage, valves and elbows should be installed as little as possible, valves must use full-open valves. The length of the inlet pipe should be kept within the length range of 2.1m~3.5m to reduce the friction loss and inertia loss in the suction pipe, which is helpful. For suction, the suction line should be 300mm higher than the bottom of the drilling mud tank.   4. In order to smooth the operation of the pump and extend the life of the wear parts, the drilling pump needs to be equipped with a super charging pump. Between the inlet of the pump and the outlet of the charging pump. There should be a safety valve, which is adjusted to 0.5MPa, which protects the charging pump from damage in the event of overpressure in the suction pipe.   5. The connection between the suction pipe and the drilling mud tank cannot be directly opposite the drilling fluid return point above the drilling fluid pool, so as not to suck the drilling fluid tank bottom debris.   6. Firmly support all suction and discharge lines so that they are not subjected to unnecessary stress and reduce vibrations, which must never be caused by. There is not enough support to allow the line to hang on the pump.   7. In order to prevent damage to the drilling fluid pump due to excessive pressure, the relief valve must be installed at the outlet near the pump, and the safety valve must be installed before any valve, so that if the pump is accidentally started when the valve is closed, and the pump will not be damaged, the relief valve must be installed. The seamless steel pipe for the outlet is led directly to the mud pool, and this seamless steel pipe should have as few turns as possible. If turning, the elbow should be larger than 120°, do not lead the discharge end of the safety valve to the suction pipe of the pump with a pipe, so as to avoid high-pressure drilling fluid drainage when the safety valve is opened out causing unnecessary accidents.

Drilling pumps were formerly known as "mud pumps". If the whole drilling operation process is compared to human life activities, then the drilling pump, like the human heart, is the source of continuous circulation of drilling fluid from the ground to the bottom of the well, and then from the bottom of the well back to the surface. Drilling pumps are an important part of drilling equipment. In commonly used rotary drilling, it is to send the surface washing medium, drilling fluid, under a certain pressure, through the high-pressure hose, swivel and drill string center hole, straight to the bottom of the drill bit, so as to achieve the purpose of cooling the drill bit, removing the cut rock chips and transporting them to the surface. The commonly used drilling pump is piston type or plunger type, the crankshaft of the pump is driven by the power machine, and the crankshaft is driven by the crosshead and then driven by the piston or plunger in the pump cylinder to reciprocate. Under the alternating action of suction valve and discharge valve, the purpose of pressure delivery and circulation of drilling fluid is realized. During the drilling process, if the drilling pump does not work properly, a downhole drilling accident will occur, just like the human heart has stopped beating. The classification of drilling pumps can be divided into single-acting drilling pumps and double-acting drilling pumps according to the form of action, and can be divided into three cylinders and five cylinders according to the number of cylinders.