China Puyang Zhongshi Group Co., Ltd. Company News

On 8th.March,Puyang Zhongshi Group shipped the plunger of the sucker rod pump to our client. These spareparts will be used in Mexico market.   In the lat month, a new client from Mexico placed order of 1000 pcs of plunger after the strictly inspection, the products are already on the way. Besides the sucker rod pumps,we still have other products in production,such as casing& pup joint, couplings, sucker rod, cementing tools,wellhead tool…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

Torque Rings are the steel rings inserted into the couplings to upgrade the API connections for both oil tubing pipe and casing pipe. Torque ring provides mechanical shoulder for the ends of the pin ends to increase torque capacity. By creating a positive shoulder, API pipe can be run, and rotated at a significantly greater torque.   Puyang Zhongshi Group produce torque rings for use in drilling and production operations for both casing and tubing, which provide the premium performance for API connections. We also supply the installation tool for torque rings.

About tubing pump   For tubing pump, the pump barrel is put in the well to the designed depth with tubing. And then put the plunger into the barrel with sucker rod. Given the tubing size, the bore of the tubing pump is larger than that of the rod type pump, so the pump rate is higher. According to seating mode, the rod pump can be divided into three types: THC pump (Stationary Heavy Wall, Cup Seating, Tubing pump), THM pump (Stationary Heavy Wall, Mechanical Seating, Tubing Pump) and THD pump.   For some large production wells, larger bore of tubing pump can be worked if the on-off connector is installed. Tubing pump is the strongest pump. It has large flowing area for fluid and it is suitable for producing viscosity oil. Stationary Heavy Wall, Tubing Pump, its standing valve can not be pulled out.   Tubing pump types and specifications   Specification Nominal Bore mm(in) Plunger Length m(ft) Max. O.D. mm Rod in Tubing in Pump Constant m3/d Stroke m 20-125 TH 32 (1.25) 1.2-1.8（4-6） 73 3/4 2-3/8 1.14 ≤8.0 25-125 TH 32 (1.25) 88.9 3/4 2-7/8 1.14 20-150 TH 38 (1.50) 73 3/4 (5/8) 2-3/8 1.64 25-150 TH 38 (1.50) 88.9 3/4 (5/8) 2-7/8 1.64 20-175 TH 44 (1.75) 73 3/4 2-3/8 2.24 25-175 TH 44 (1.75) 88.9 3/4 2 7/8 2.24 25-200 TH 51 (2.00) 88.9 3/4 2-7/8 2.91 25-225 TH 57 (2.25） 88.9 3/4 2-7/8 3.69 25-250 TH 64 (2.50) 88.9 3/4 3-1/2 4.55 30-275 TH 70 (2.75) 108 7/8 3-1/2 5.50 35-325 TH 83 (3.25) 116 7/8 4 7.70 40-375 TH 95 (3.75) 116 1 4-1/2 10.26 35-425 TH 108 (4.25) 147 1-1/8 4 13.18    

The auspicious snow is a good year, and the Spring Festival is approaching. Our employees still stick to their posts. In order to complete the delivery task on time, everyone works overtime to try to complete the delivery and arrange shipment before the Spring Festival we hope the production will be prosperous in the coming year   Besides the pup joint & Crossover,we still have other products in production,such as couplings, sucker rod, cementing tools Sucker rod pump…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

The cold December is coming to an end, and the factory is ushering in the peak of shipments. Under the influence of the dual policies of epidemic prevention and epidemic spread, we have also delivered on schedule, which further reflects the timeliness of the factory. On the 15th of this month, the Canadian customer's pup joint order was successfully completed and shipped, and the export declaration process was completed before the end of the year.   Besides the pup joint & Crossover,we still have other products in production,such as couplings, sucker rod, cementing tools Sucker rod pump…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 16th.Nov, Puyang Zhongshi Group shipped 1660pcs of  casing centralizers to our client. These Casing Centralizers will be used in Africa market.   At the beginning of January, a new client from Africa placed the order of Casing centralizers. After 25 days production and strictly inspection, the products are ready to delivery. The order is Slip-on welded type Casing Centralizers. Besides, we still have other products in production, such as pup joint, 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, OCTG, Centrifugal Pump, Sucker Rod Pump, etc. If you have any requirements, please send us email sales@zspetro.com or call us +86 029 63639397

On 10th.Nov,Puyang Zhongshi Group shipped sucker rod pump 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 30-250- RWBM sucker rod pump, after the strictly inspection, the products are already on the way. Besides the sucker rod pumps,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

Pump components There are seven major components for downhole rod pumps: standing and traveling valves, plunger, barrel, seating assembly, pull tube or valve rod (for insert pump), and the fittings that hold the assembled pump together. The most common of these components and the final types of assembled pumps are covered by American Petroleum Institute (API) Specification 11AX.   Types of pumps API recognizes two main types of pumps: rod and tubing. Rod pumps also are called insert pumps because they are run (inserted) in the production tubing. Tubing pumps are so named because the working barrel of this pump is coupled with the production-tubing string. There is a wide range of plunger (or pump-bore) sizes standardized by the industry. The API pump-bore sizes that are currently available range from 1 1/16 to 3 3/4 in. in diameter. This 1 1/16-in. size has been added back in the latest edition of the standard. Additionally, a new barrel type has been accepted in the latest API Spec. 11AX. This is the "X-type" barrel. It has a thin-walled barrel configuration for threads on either end of the heavy-walled barrel and is available for metal plungers only. This type of pump does not require the extension couplings normally needed for heavy-walled barrel pumps. Thus, this pump reduces the burst or collapse concerns of the thin-walled extension couplings and allows deeper producing depths to be attained.   API pumps and nomenclature While there are only two main types of pumps standardized by API, there are four different types of rod pumps. These are classified by the type of barrel (standing or traveling) and where the pump is anchored (top or bottom). API Spec. 11AX. shows the letter designations for the various types of rod and tubing pumps that are available for different barrel thicknesses and either metal or soft-packed plungers. The complete pump designation of an API pump adds dimensional diameters and lengths to the letter designations. This has been modified in the latest revision to incorporate all approved sizes and barrel types along with separating the extensions into the top and bottom lengths, if required. The complete API designation includes the following: Nominal tubing size (from 1.9- to 4.5-in. OD) - represented with 2 digits Basic bore diameter (from 1.0625 to 3.75 in.) - represented with 3 digits Type of pump (rod or tubing) - R or T to indicate type Type of barrel (heavy, thin, or X type) - single alpha character to represent the barrel type Seating-assembly location (top or bottom) - A (for top), B (for bottom), or T (for bottom, traveling barel) Type of seating assembly (cup or mechanical) - C or M to indicate type Barrel length (ft) - single digit length Nominal plunger length (ft.) - single digit length Length (in.) of upper extension (if required)- single digit length Length (in.) of lower extension (if required)- single digit length API Spec. 11AX. shows that, for example, a 1¼-in. bore-rod-type pump with a 10-ft heavy-walled barrel, a 2-ft upper extension, a 2-ft lower extension, a 4-ft plunger, and a bottom-cup-type seating assembly that will be used in 2 3/8-in. tubing would be designated as 20-125-RHBC-10-4-2-2. It is important to know that the users of API pumps need to provide, along with the pump nomenclature, the following ordering information: barrel and plunger material, plunger clearance (or fit tolerance), and valve (ball and seat) and fittings material. The materials normally available for each of these components also are now included in the latest edition of API Spec. 11AX.   Non-API and Specialty pumps The types of pumps, sizes, and component materials that are included in the API standards are based on the best industry practices that meet widespread industry needs. While API standardizes the majority of pumps and components that are used in sucker-rod lift, there are special parts and pumps that have been developed by manufacturers to try to solve specific pumping problems. This specialty equipment should be considered when best industry practices and standardized components have proved unacceptable. However, the manufacturer of these components should create all parts to the same quality level required in API Spec. 11AX. Useful specialty pumps include the following: Casing pump for production without tubing Pumps with two plungers that act in series to increase displacement High-compression plunger assembly or pump for handling gas-interference problems Three-tube pump for handling fines or solids Pumps with a shorter barrel than normally recommended, so that the plunger completely wipes solids free of the barrel and prevents sticking. Additionally, there are special pump components, such as valve rods, valves, and tubing drains, that are sometimes beneficial in situations in which the capabilities of normal API pumps and components have been exceeded. The manufacturer of special, non-API pumps and components should be contacted to determine the working capabilities and limitations of any of these specialty components. However, these items should be selected with care and used only after the best production effort has been thoroughly tested with standard components.