China Puyang Zhongshi Group Co., Ltd. Company News

How Does Artificial Lift Work? Artificial lift is a process used on oil wells to increase pressure within the reservoir and encourage oil to the surface. When the natural drive energy of the reservoir is not strong enough to push the oil to the surface, artificial lift is employed to recover more production. While some wells contain enough pressure for oil to rise to the surface without stimulation, most don't, requiring artificial lift. In fact, 96% of the oil wells in the US require artificial lift from the very beginning. Even those wells that initially posses natural flow to the surface, that pressure depletes over time, and artificial lift is then required. Therefore, artificial lift is generally performed on all wells at some time during their production life. Although there are several methods to achieve artificial lift, the two main categories of artificial lift include pumping systems and gas lifts. Methods Of Artificial Lift   Beam pumping Hydraulic pumping Electric submersible pump Gas lift     The most common type of artificial lift pump system applied is beam pumping, which engages equipment on and below the surface to increase pressure and push oil to the surface. Consisting of a sucker rod string and a sucker rod pump, beam pumps are the familiar jack pumps seen on onshore oil wells. Above the surface, the beam pumping system rocks back and forth. This is connected to a string of rods called the sucker rods, which plunge down into the wellbore. The sucker rods are connected to the sucker rod pump, which is installed as a part of the tubing string near the bottom of the well. As the beam pumping system rocks back and forth, this operates the rod string, sucker rod and sucker rod pump, which works similarly to pistons inside a cylinder. The sucker rod pump lifts the oil from the reservoir through the well to the surface. Beam Pump Usually pumping about 20 times a minute, the pumping units are powered electronically or via gas engine, called a prime mover. In order for the beam system to work properly, a speed reducer is employed to ensure the pump unit moves steadily, despite the 600 revolutions per minute the engine achieves.  

VALVE BALL AND SEAT   The valve ball and seat is a important part of the oil field mining pump, its using directly decides the service life of pump.According to the corrosion characteristics of oil, oil Wells can provide different material   We provide different material and structure of the valve cage according to different well conditions. For different material of the valve cage, we have different heat treatment process, to ensure the safety of the use and its mechanical properties. We can produce all pump accessories, at the same time, also undertake the processing of other equipment accessories. Material   Unfinished Product of V11 Valve Ball and Seat   Finished Product of V11 Valve Ball and Seat   Packing of V11 Valve Ball and Seat   Inspection of V11 Valve Ball and Seat

Cementing head   Cementing head is a device installed on the top of casing during cementing. During cementing operations, a cement plug for cementing is pre-placed in the cement head, including an upper plug and a lower plug. Put in the lower plug before injecting the cement slurry, and then put the upper plug on the upper plug after the predetermined amount of cement slurry is poured, and then substitute the mud or clear water to make the upper plug go down. When the lower plug is blocked by the supporting ring, the partition in the center hole is broken until the cement slurry is completely squeezed out of the casing. When the upper and lower plugs collide, the liquid channel is blocked, the pump pressure suddenly increases, and the cement is injected. End. After the cement injection, close the gate leading to the outside of the cement head and remove the connecting pipeline.   Cement casing head When the lower cement plug is released, it rotates to exit and releases the lower stop pin. The lower cement plug leaves the inner cavity of the lower cement plug under the push of gravity and pumping liquid (the release indicator pin is shown), and is driven to the casing along the inner wall of the casing. On the floating hoop. When the cement plug is put on, rotate and exit to release the upper stop pin. The upper cement plug is pushed by gravity and displacement fluid to leave the inner cavity where the upper cement plug is located (the release indicator pin is shown), displace the cement slurry and clean the inner wall of the casing Until it coincides with the lower rubber stopper and hits it.     Liner cement head   The liner cement head is used for liner cementing. The stern tube cement head is composed of lifting pup joint, body, rotating bearing mechanism, drill rod stopper pin mechanism, ball throwing mechanism, drill rod connection pup joint and valve manifold, as shown in the figure. The stern tube cement head is mainly used for stern tube cementing, and the functions of the lifting sub and rotating bearing mechanism are the same as the corresponding mechanism of the drill pipe cement head. When the tail pipe hanger is seated, rotate the handle of the pitching mechanism, and the ejector rod will eject the ball from the inner cavity of the pitching mechanism. The ball is pushed by gravity and pumped liquid and falls on the hanger ball seat along the inner cavity of the drill rod. , Under the action of pump pressure, the tail pipe hanger can be seated. When releasing the tail pipe rubber plug, rotate the handle of the drill pipe stopper pin mechanism to retract the stop pin from the inner cavity of the drill pipe plug, and the drill pipe plug will leave the inner cavity of the drill pipe plug under the push of the pumped liquid and move along the drill pipe The inner wall falls on the rubber plug seat of the tail pipe, and the rubber plug of the tail pipe is cut and released under the action of the pump pressure.