China Puyang Zhongshi Group Co., Ltd. Company News

Casing Accessories:   include float shoe & collar stage collar centralizer also the pup joint & crossover & coupling, puyangzhongshi can produce the premium connection type pup joint & crossover & coupling, we also can produce L80-13Cr L80-9Cr L80-1Cr grade pup joint & crossover & coupling other products in batch.   Besides the crossover,we still have other products in production,such as sucker rod pump, sucker rod, cementing tools …etc. Of course, if you have any special requirements or OEM service required, please feel free to let us know Puyang Zhongshi Group is the manufacturer with API certificates approved over 20 years in China, mainly in Cementing tools, Centrifugal Pump, Sucker Rod Pump,pup joint&coupling etc. If you have any requirements, please send us email sales@zspetro.com or call us +86 029 89296933

1. Main characteristics and classification of casing heads Casing head, also called coupling head, is an important wellhead device. It is mainly composed of casing joint, environmental protection body, packing body and sealing gasket. The main function of the casing head is to connect the casing and make it tightly fixed on the wellhead device, thereby protecting the casing, preventing the wellhead mud from flowing back, and controlling the oil and gas flow. According to different structures and functions, casing heads can be divided into many types, such as ordinary casing heads, press-lock casing heads, bimetal casing heads, hot-insertion casing heads, hanging casing heads, etc. Among them, the pressure-locked casing head is currently the most widely used. It uses special pressure mechanics principles to form a special pressure connection between the casing and the wellhead device, thus ensuring the sealing and stability of the casing. sex.   2. The importance of casing heads in oil exploration and development As mentioned above, the casing head plays a vital role in oil exploration and development. It not only protects the casing, prevents wellhead mud backflow, controls oil and gas flow, etc., but also improves oil and gas production efficiency and reduces production costs. Therefore, in petroleum exploration and development, the selection, installation and maintenance of casing heads are very important tasks. In terms of casing head selection, it is necessary to comprehensively consider the type of wellhead device, working environment, working pressure, oil and gas production and other factors to select the most suitable casing head. In terms of installation and maintenance of casing heads, it is necessary to strictly follow relevant standards and specifications to ensure the sealing and stability of the casing heads.    

Casing Centralizer 1. API single piece casing centralizer performs satisfactorily in open hole as well as cased hole. 2. These high quanlity product,developed to meet and exceed API 10D specifications for use in highly demanding downhole conditions. 3. Single piece casing centralizer combines the highest restoring force with zero start force and zero running force. 4. The bow spring casing centralizer is used to position the casing in the center of the wellbore in vertical deviated and horizontal wells. 5. The single piece centralizers reduce the effect of channelling by improving the cement flow,the results in more uniform cement thickness in the well bore. 6. By reducing the pipe movement before cement sets in.The single piece casing centralizers are able to minimize gas channelling. 7. The single piece centralizers are one piece construction in special high strength steel which imparts excellent hardness and spring action ensuring an unmatched ability to come back to its original shape after undergoing rigorous stress loads conditions. 8. The single piece casing centralizers are available in size 4-1/2" to 20". 9. Any special sizes or combination can be available on requirment. 10. This centralizer undergoes a special Iron Phosphate coating process to prevent it from rust and coated with special Polyester Powder. 11. It is shipped in assembled condition only. 12. When shipping them,in order to save space and shipment charges for customers,we usually put the smaller size centralizer into bigger size centralizer.   Parameter Model (in) Hooping In-Dia. (mm) Hooping thickness(mm Total length

Sucker Rod Sucker rod is the common equipment in the oil extraction. It is manufactured through many process including the testing, straightening and forging. The sucker rod is placed between the polished rod and oil well pump. To deliver power. Sucker rod is manufactured from high quality carbon steel and alloy steel, which is conform to the API Spec 11B standard.   N Normal size in(mm) Dia. of coated rod (mm) Wrench section width (mm) Wrench section Length (mm) OD of Male thread step (mm) Nipple neck length of ascension(mm) 1 5/8(16) 19 27 28 37 127 2 3/4(19) 22 29 28

API Cement Head The API cement head is an essential tool used in the oil and gas industry for cementing operations. It serves as a connection between the cementing line and the top of the casing, facilitating the efficient and precise placement of cement slurry during well cementing processes. Available in sizes ranging from 4 1/2" to 20", the API cement head is designed to withstand high-pressure cementing applications, ensuring reliable and secure cementing operations. Along with its robust construction, the API cement head features a top swivel joint for easy installation and removal, enhancing operational efficiency. The design includes a plug dropping mechanism, which aids in the controlled release of cement plugs into the wellbore, contributing to optimal cementing performance. With a focus on safety and effectiveness, the API cement head is engineered to meet industry standards and specifications, making it an indispensable component in achieving successful wellbore cementing.   Specifications, mm Φ139.7 Φ177.8 Φ193.7 Φ244.5 Φ273 Φ339.7 Overall-length,mm 1950 2020 2020 2360 2360 2440

Crude oil production is the upstream of oil and gas industry. It is defined as the quantities of oil extracted from the ground after the removal of inert matter or impurities. The precise extraction mechanism used depends on the underlying grade of oil.   Oil production equipments: 1. Well head equipments( for shallow oil production) 2. Production and test manifolds 3. Artificial lift oil production system (1) Electrical submersible pumping (ESP) systems (2) Pumping unit with sucker rod pumps and sucker rods   Puyang Zhongshi Group is the specialized API certified manufacturer for oil production equipments. We produce wellheads equipments, pumping units and oil downhole pump (sucker rod pump and tubing pump) and supply sucker rods, polished rods, sucker rod guides, rod rotator and polished rod clamps etc. For downhole pumps, we produce carbon seel barrel pump for normal well conditions and produce brass barrel and alloy steel barrel pump for corrosive enviroment oil wells. Large quantity of our production equipments are exported to Southeast Asia,Northern Europe,the Middle East, Africa and South America market.        

  Non-magnetic drill collars are also called Non-mag drilling collars, which is an essential part of the bottom hole assembly (BHA) in drilling operations. They are constructed from non-magnetic materials, which is a special type of stainless steel that maintains its mechanical properties while exhibiting minimal magnetic permeability.   Non-mag drill collars are used extensively for directional drilling and horizontal drilling to enhance the accuracy of downhole measuring tools (such as Measurement While Drilling- MWD, and Logging While Drilling- LWD) can be negatively impacted by magnetic interference. In operations, the non-mag collar plays a similar role to standard drill collars: it provides weight on bit and stiffness to the drill string.     Besides normal drill collars, Puyang Zhongshi Group supply Non Magnetic drill string components is based upon extensive in-house experience both in metallurgy and precision manufacturing. Welcome your inquiries for drill string.   Non-magnetic forged bars before production:   Finished non-magnetic drill collars:   Thread part photo of our non-magnetic drill collars    

PYZS sucker rod blow out preventer   In the process of oil production by pumping unit, high-pressure gas flow will appear suddenly in the well, If the wellhead is not equipped with a blowout preventer, the stuffing box alone is not enough to control the wellhead pressure and can easily cause a blowout. Therefore, it is necessary to install sucker rod blowout preventer at the wellhead. The sucker rod blowout preventer developed and produced by our company with small size, occupies little space of wellhead, and is easy to operate. It is produced according to API 16A standard, and its sealing performance is safe and reliable.   Installation operation   Installation   Before installing the blowout preventer, check whether the locking nuts at both ends are locked, whether the lead screw rotates flexibly, and whether the sealing ram are damaged. Connect the lower connector to the wellhead, making sure the threads are tight. Connect the sucker rod and stuffing box to the upper connector of blowout preventer, making sure the threads are tight.   Operation during normal oil production   During oil production, the sealing ram of the blowout preventer should be in the fully open position. The operation method is to turn the leading screw counterclockwise to open the sealing ram to fully open state. When the sucker rod is operating during oil extraction, neither the rod body nor the coupling can collide with the sealing ram.   Blowout preventer close operation   When a blowout or kick accident occurs downhole, the oil production operation should be stopped immediately and the blowout preventer should be closed immediately. The operation method is to rotate the hand wheels at both ends clockwise at the same time until the ram holds the sucker rod tightly and seals the liquid in the well. When closing, the hand wheels at both ends should be rotated at the same time, not only one end or one end is rotated too much, and the other end is rotated too little.   Besides the crossover,we still have other products in production,such as sucker rod pump, pup joint, couplings, sucker rod, cementing tools …etc. Of course, if you have any special requirements or OEM service required, please feel free to let us know Puyang Zhongshi Group is the manufacturer with API certificates approved over 20 years in China, mainly in Cementing tools, Centrifugal Pump, Sucker Rod Pump,pup joint&coupling etc. If you have any requirements, please send us email sales@zspetro.com or call us +86 029 89296933

Puyang Zhongshi oilfield tools torque ring Increase torque force   1.-The use of PYZS type torque ring in the connection system is the key to enhance the connection performance of API casing method; 2.-The ring can be easily transported to any position,and the torque ring can be easily installed into the coupling on the field oil casing by using the insertion and installation tool provided; 3.-Torque ring provides an excellent connection scheme for operators who want to use casing drilling technology.It is easy to install and can be inserted by inserting the installation tool with a pneumatic wrench or hitting the tool rod. PYZS torque ring test shows that the torque is significantly increased compared with APl and competitors. PYZS torque ring is made of high-quality materials conforming to API Spec 5CT. PYZS type torque ring ensures repeated tightening capacity under 100%pressure     Besides the crossover,we still have other products in production,such as sucker rod pump, pup joint, couplings, sucker rod, cementing tools …etc. Of course, if you have any special requirements or OEM service required, please feel free to let us know Puyang Zhongshi Group is the manufacturer with API certificates approved over 20 years in China, mainly in Cementing tools, Centrifugal Pump, Sucker Rod Pump,pup joint&coupling etc. If you have any requirements, please send us email sales@zspetro.com or call us +86 029 89296933

On 1th.Nov,Puyang Zhongshi Group shipped sucker rod to our client. These pumps will be used in Russia market.   At the end of of Month, a new client from Russia placed order of 500 sucker rod, after the strictly inspection, the products are already on the way. Besides the sucker rod,we still have other products in production,such as casing& pup joint, couplings, sucker rod, cementing tools…etc. Of course, if you have any special requirements or OEM service required, please feel free to let us know Puyang Zhongshi Group is the manufacturer with API certificates approved over 20 years in China, mainly in Cementing tools, Centrifugal Pump, Sucker Rod Pump,pup joint&coupling etc. If you have any requirements, please send us email sales@zspetro.com or call us +86 029 89296933