China Puyang Zhongshi Group Co., Ltd. Company News

Bow-spring centralizer 1.These Centralizers are designed for High Restoring Force and Low Starting Force for centralizing the casing pipe in a Vertical,Horizontal and Deviated well 2.Premium quality Bows are made of special alloy steel and hot formed in totally controlled heat treatment plant 3.Spec and performance index of bow spring casing centralizer meet API Spec 10D. The woven centralizer is connected by pin when in use, the unfolded centralizer can be stacked flatly for convenient storage and transportation. Rigid roller centralizer Rigid casing centralizer is used in deviated wells and horizontal wells. There are several blades on the rigid roller centralizer that can keep casing from contacting the well bore wall     Semi-rigid Centralizer Single Bow Spring Centralizer Double-bow Spring Centralizer

The rod pump is connected to sucker rod after being assemblied on the surface then it is pulled down to the well bottom through the tubing. Thus it is convenient for the inspection and workover because they can be pulled up and down through the tubing and suitable for deeper well. The life span of tubing can be prolonged for decreasing the times of the thread of the tubing being turned on and off and the time of the workover. The rod pump can be classified into two types of mechanical seating and cup seating. Also it is divided into three types as RHA (stationary heavy well barrel top anchor rod pump), RHB (stationary heavy well barrel bottom anchor rod pump) and RHT (travelling heavy well barrel bottom anchor rod pump).  

Description of sucker rod pump We can provide API pump and special pump API pump: RHAC, RHBM, RHAM , RTH(B)C, TH(B)M, RWBM, RWBC, RWAM, RWAC R, RHBM-A, RHBC R   Features of pump we provide The inner surface of the pump barrel is processed with carbonization quench and chrome plating technology The plunger surface is processed with thermal metal spraying technology The pump meets the requirement of long stroke, high speed and deep producing It has the advantages of high pumping efficiency, large displacement, wear and corrosion resistance, long operation and easy repairing. It accords with API SPEC 11AX standard, and has the certificate of authority to use the official API monogram. PUMP main parts process and material:

1. Introduction of rod coupling The sucker rod coupling have the same box thread size in each end are used for connecting sucker rod and/or pony rod, and/or sinker bars with sucker rod threads. The polished rod coupling have the same box thread size in each end are used for connecting polished rod and/or sinker bars with polished rod threads to the sucker rod string. The sub-coupling have different sizes of box threads in each end are used for connecting two sizes of sucker rods or a polished rod to a sucker rod string. 2. Manufacturing specification: API 11B 3. Material 3.1. Chemical Composition The material shall be per manufacturer’s specification and shall have a maximum sulfur content of 0.05%. 3.2. Mechanical Properties Mechanical properties shall be in accordance with the manufacturer’s specification with a minimum tensile strength of 95,000psi(655MPa). One of the following means shall be used to conform to the tensile requirements: ---determination of the metal material hardness of 56 to 62 HRA inclusive; or ---material test report per 6.3.2.2 for the heat of steel from the original mill if further processing does not change mechanical properties; or ---a tensile test per ASTM A370, OR ISO 6892 with s minimum of two tests performed after final thermal processing. 4. Sprayed metal coating requirements 4.1. Chemical composition 4.2. Coating thickness Spraying metal coating thickness is 0.010in to 0.020in. (0.25mm to 0.51mm) per side and cover the outside diameter. Spraying metal coating shall extend to the outside diameter of the contact face.  

Puyang Zhongshi Group Co. , Ltd. , restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products.The company registered capital is 10 million U.S.dollars,with annual export 30 million U.S.Dollars. Rod pump is equipped with a support joint, support joint connected on the tubing string, and it is together with the tubing string down to the bottom. Plunger assembly is connected on the rod string and together with the whole pump down to support joint position, pump is fixed within the support joint by external force, plunger assembly is together with the sucker rod string up and down reciprocating movement to achieve pumping work.     · Puyang Zhongshi Group has been exporting for 20 years, pump products are sold to America,Middle East,Russia and other 30 countries and regions; · Our products are national free-inspection;100% qualified enterprise of SGS third party exporting certification; · We have the large scale sucker rod pump production base,with annual output 15000 sets,the best price and the fastest production;  

Main features: The beam pumping unit has features of reliable performance, simple structure, easy operation and maintenance etc. Accordance with API SPEC 11E standard, and have the certificate of authority to use the official API monogram. beam pumping unit using adjustable arc-shaped beam rear arm, between the beam and the beam connecting the special structure of the flexible member, the production strictly according to API Spec 11E or Q / SL 1361 - 2002 standards, with a stroke length, dynamic load is small, small torque fluctuations, high efficiency, low energy consumption, smooth, easy to start and so on. The aircraft is equipped with multi-function electrical cabinets, with short circuit and overload voltage protection, reactive power compensation, restoration from the start, the motor speed and other functions, low-powered devices are equipped with investment, easy maintenance and management. Saving 20-60% than conventional machines, installed power reduced by about 50%, and can save power system investment. Mainly used for mining low-viscosity crude oil and high water content can also be mined for viscous crude oil.  

Puyang Zhongshi’s ESP cable protectors are used to protect any configuration of ESP cables, control lines, encapsulated bundles, and etc in wellbore.Protectors use channels to prevent control lines or cables when assembly through tubing coupling. during completion service.   Application: 1. Well Completion service; 2. Artificial Lift; 3. Intelligent Wells   Features: 1. Fit tubing size from 2-3/8" to 5-1/2"; 2. Fit various coupling specification. 3. Multi channels can be adopted to protect esp cables and control lines at same time. 4. Carbon Steel and Stainless Steel can satisfy various wellbore.   Main Specification:   Protector Type Tubing Size Coupling Cable Control line Casting Stamping Cross Coupling Mid Joint Banded 2-3/8” EUE #1 FLAT Φ1/4” 2-7/8” VAM TOP #2 FLAT Φ1/8” 3-1/2” NEW VAM #3 FLAT Φ3/8” 4” VAGT #1 Round 11x11mm 4-1/2” FOX #2 Round … 5” OTIS #3 Round   ... … …      

One-piece centralizer is an important tool used in oil, gas and geological exploration drilling engineering, and its main function is to stabilize the downhole drilling tool and prevent the change of well deviation It keeps the slender drill pipe running smoothly and keeps the drill bit axis as close to the drill hole centerline as possible, thereby reducing the eccentric wear of the drill bit and drill pipe, ensuring the quality of coring, and preventing well deviation or being used for manual directional drilling.   The integral centralizer is made of 65Mn seamless steel pipe, which is then adjusted and shaped by stamping and heat treatment. It is widely used in the casing running operation of vertical wells or large inclination wells, and has the advantages of small starting force and large reset force. If the one piece centralizer ( also called semi-rigid centralizer) integrate with the stop ring, then the centralizer has the role of high strength of the integral centralizer and the fixation of the stop ring at the same time. It is easy to install and can save the cost of the stop rings.  

  Sucker rod coupling, polished rod coupling, and Sub-coupling 1. Introduction of rod coupling The sucker rod coupling have the same box thread size in each end are used for connecting sucker rod and/or pony rod, and/or sinker bars with sucker rod threads. The polished rod coupling have the same box thread size in each end are used for connecting polished rod and/or sinker bars with polished rod threads to the sucker rod string. The sub-coupling have different sizes of box threads in each end are used for connecting two sizes of sucker rods or a polished rod to a sucker rod string. 2. Manufacturing specification: API 11B 3. Material 3.1. Chemical Composition The material shall be per manufacturer’s specification and shall have a maximum sulfur content of 0.05%. 3.2. Mechanical Properties Mechanical properties shall be in accordance with the manufacturer’s specification with a minimum tensile strength of 95,000psi(655MPa). One of the following means shall be used to conform to the tensile requirements: ---determination of the metal material hardness of 56 to 62 HRA inclusive; or ---material test report per 6.3.2.2 for the heat of steel from the original mill if further processing does not change mechanical properties; or ---a tensile test per ASTM A370, OR ISO 6892 with s minimum of two tests performed after final thermal processing

Snap on sucker rod guide instruction  1. Purpose: It is suitable for wells with severe eccentric wear of oil pipes and sucker rods. By using this centralizer, the parts in contact with the oil pipe The centralizing body wears and the wear of the sucker rod and oil pipe is reduced to achieve the purpose of preventing eccentric wear. 2. Product appearance and features:   Appearance of centralizer 2. Features: It has the characteristics of small end face resistance, easy to use, safe and reliable, low cost and good righting effect. 3. Main technical indicators: Tensile strength: 212 MPa Bending strength: 220.3 MPa Heat distortion temperature: 240℃ Scope of application: Ф19mm, Ф22mm, Ф25mm sucker rod Maximum outer diameter: Ф58 mm, Ф72mm Length: 135mm   4. Principles of use: 1. For well sections with lighter eccentric wear, install one set in the middle of each sucker rod. 2. In well sections with heavy eccentric wear, install one set in the middle and one end of each sucker rod. 3. For well sections with heavy wear, install one set at both ends and in the middle of each sucker rod. 5. How to use: 1. Select the specifications and quantity of KZL nylon centralizer according to the sucker rod and eccentric wear conditions. 2. During installation, remove oil and rust at the installation position of the sucker rod body, and then apply special glue. Align the grooves and convex edges of the two centralizers and use a special tool to drive them into position. 3. When the centralizer is lowered into the well, a sucker rod guide is installed at the wellhead. 4. If the centralizer used to lift the centralizer from the oil well is 1/3 worn off or damaged, it should be replaced. 6. Things to note: 1. During the installation process of the centralizer, direct knocking and collision are strictly prohibited, and special tools must be used. 2. A sucker rod guide must be installed. 3. Be steady when lowering