other
HOT PRODUCT
  • Tungsten-Plated Sucker Rod
    Tungsten-Plated Sucker Rod

    ‌RockySea Petro Tungsten-Plated Sucker RodWith the increase of working time, conventional sucker rods are prone to corrosion and eccentric wear during operation, and are not suitable for high-strength or harsh working conditions. To solve the eccentric wear and corrosive problems in oilfields, RockySea Petro developed various anti-corrosion and anti-abrasion products, including tungsten-plated sucker rod.Description Composite plating is to add insoluble particles (such as ceramic particles) to the plat

    VIEW DETAILS
  • Float Collar and Float Shoe
    Float Collar and Float Shoe

    ‌RockySea Petro Float Collar and FloatData sheetAdvantageRockySea has extensive experience in manufacturing float hoops and shoes, and its products have the following advantages.1) The reliable valve body structure reduces the resistance of cement slurry flow.2) All internal accessories are drillable and have the same diameter as the casing.3) The special structural design effectively prevents the backflow of cement slurry.4) The buckle can be processed into BTC/LTC/STC/VAM/FOX/TP-CQ/OTTM accordi

    VIEW DETAILS
  • High Strength Sucker Rod
    High Strength Sucker Rod

    ‌RockySea Petro High Strength Sucker RodHigh strength means high tensile strength in physical performance.RockySea Petro can manufacture high strength and ultra-high strength sucker rod with high quality. We have rich experience in production and a strong ability in research and development. Our products include various series of high strength and ultra-high strength sucker rod based on client requests.Description There are two types of ultra-high strength sucker rods in China. The first one is HL with

    VIEW DETAILS
  • Hydril Annular BOP
    Hydril Annular BOP

    ‌RockySea Petro Hydril Annular BOPThe Hydril Annular BOP has carried out rigorous tests, such as magnetic particle, ultrasonic, pressure test and and so on.Do the pressure analysis to pressured and forced parts with 3D software to check the strength of Hydril Annular Blowout Preventer.RockySea Petro Petro designs various types of Hydril Annular BOP according to the International standard.RockySea Petro Petro has more than 20 years of experience in oil wellhead and Hydril Annular BOP production, with advanced manuf

    VIEW DETAILS
  • Drawworks
    Drawworks

    ‌RockySea Petro DrawworksFunction(1) During the drilling process, hang the drilling tools, feed in the drill string and drill bit, and control the drilling pressure.(2) Use the cathead mechanism of the drawworks to tightly unload drilling tools and lift heavy objects.(3) Provide different lifting speeds and weights for drilling operations.(4) As the variable speed mechanism and intermediate transmission mechanism of the turntable.(5) Use the sand drum of the drawworks to perform core extraction,

    VIEW DETAILS

Sinker Bar

Date:2024-05-08 Popularity:829

RockySea Sinker Bar



Sinker bars of RockySea Petro are exported to the United States, Canada, Europe, Africa and Middle East, and we establish cooperative relationships with international customers all over the world.

RockySea Petro owns a strong ability about research, design and production of sinker bar with decades of manufacturing experience. RockySea Petro has been certified by ISO9001,  ISO14001 and OHSAS18001.RockySea Petro adopts the principle of combining intl standards, national standards and users’ views for design.


Description

Grade and material

The current edition of intl standards recognizes two grades of sinker bars,Grade 1 Carbon steel and Grade 2 Alloy steel. Below are the material examples

  • AISI 4623 Nickel-Molybdenum Alloy Steel 90,000 psi minimum tensile.
  • AISI 1024 Plain Carbon Steel 65,000 psi minimum tensile
Sinker bar also have C,D,K strength grades as sucker rods. In general terms  Grade 1 is referred to as Grade C while Grade 2 is referred to as Grade K depending on material alloy type.

Sinker Bar is heavier than the conventional rod. It is used at the bottom of the sucker rod string to keep the rod string under tension and reduce crooks of the sucker rod string during downward travel.Sinker bars provide concentrated weight above the pump to help keep the rod string straight and in tension, which reduces buckling of the sucker rods or the pump plunger. Sinker bars are made of hot rolled carbon manganese steel bar. Sinker bars are surface turned and have  double sucker rod pins, shoulders, and wrench flats on both ends. One end has a reduced section for elevator seating and lifting.


Features

External diameter (mm)External thread
dimensions (mm)
Wrench square
width (mm)
Wrench square
length (mm)
Sinker bar
length  (mm)
Mechanical
properties
1 1/4(31.75)5/8(15.9)SR25.431.87600;91001. Class-1:
tensile strength≥448MPa
1 1/4(31.75)3/4(19.1)PR25.431.87600;9100
1 3/8(34.93)5/8(15.9)SR25.431.87600;9100
1 3/8(34.93)3/4(19.1)PR25.431.87600;9100
1 1/2(38.1)3/4(19.1)SR33.338.17600;91002. Class-2:
tensile strength≥620MPa
1 5/8(41.28)7/8(22.2)SR33.338.17600;9100
1 3/4(44.45)7/8(22.2)SR38.141.37600;9100

 

RockySea Petro Copyright © 2008-2025 Inc. SITEMAP