Double Hollow Sucker Rod for Circular Heating Device

Double Hollow Sucker Rod for Circular Heating Device

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  • Updatetime:Feb 02 2015
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Supplier Details

Oil Thermal Recovery Equipment Co., Ltd

  • Member Levels: Free member
  • Business Type: Manufacturer
  • Country: China
  • Tel: 86-318-46247680
  • Address: No. 839 Shunda Road, Fucheng County, Hengshui City, Hebei Province, China.
  • Website: http://www.sucker-rod.com
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Detailed Description

Double Hollow Sucker Rod for Heat Conduction in Oil Exploitation

Introduction of double hollow sucker rod

Double hollow sucker rod is a special structure which add an independent hollow channel in the inner of common hollow sucker rod. The inner pipe of the double hollow sucker rod is made of stainless steel pipe which can ensure the long service life.

Double hollow sucker rod is mainly used in the circular heating device for high pour point, high viscosity and high wax content oil exploitation. In the device, the double hollow sucker rod can be used combined with four-way hanging connector, circulating pump and other equipment.

A piece of profile map of double hollow sucker rod on the white background.

Profile map of double hollow sucker rod.

A profile map of wellhole heating on the white background.

Double hollow sucker rod application in the wellhole heating.

Brief introduction of circular heating device

The double hollow sucker rod make use of the specially-made terminator to form two channel: outer channel and inner channel. Used combined with the four-way hanging connector, high-pressure rubber hose, circulating pump, and heat exchanger, the double hollow sucker rod can heating the crude oil circularly in a closed channel. Benefit from the structure of double hollow sucker rod, the heating carrier will not enter the wellhole, so it can reduce the pollution and improve the production efficiency.

Specifications

  • Material:
    • Outer pipe: high quality carbon steel pipe.
    • Inner pipe: stainless steel pipe.
  • Diameter:
    • Outer pipe: 36mm or 42mm.
    • Inner pipe: 16mm, 19mm and 22mm.
  • Length: 25', 26, 30' and other length can be customized.
  • Grade: D or H.

Item Diameter of Outer Pipe Diameter of Inner Pipe
DHSR-01 36mm 16mm
DHSR-02 42mm 22mm
DHSR-03 42mm 19mm

Features

  • The heat carrier will not enter the wellhole, it can reduce pollution and improve the production efficiency.
  • Can be used with various heating carrier, such as the hot oil, hot water, solar energy and steam.
  • Saving energy and improve the production efficiency.
  • Reduce pollution.
  • Reduce viscosity and remove wax.
  • Stainless steel inner pipe for long service life.
  • Can be used in the strict environments for heavy oil exploitation.

Applications

  • The double hollow sucker rod is mainly used in the circular heating system for heat conduction.
  • Different specs can be used in different environments.
    • Diameter of 16mm inner pipe and 36mm outer pipe double hollow sucker rod is widely used in the oil exploitation of viscosity below 10000mPa.s.
    • Demeter of 22mm inner pipe and 42mm outer pipe double hollow sucker rod is ideal for the oil exploitation of viscosity between 1000mPa.s. and 3000mPa.s.
    • Diameter of 19mm inner pipe and 42mm outer pipe double hollow sucker rod can play a good performance in the oil exploitation of viscosity below 5000mPa.s.

Company Related Products

View the Seller's Products
Sucker Rod - Different Grade Rod for Oil Exploitation

Sucker Rod - Different Grade Rod for Oil Exploitation

Sucker Rod with Various Grades and Specs

Introduction

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. Sucker rod has various types including the common sucker rod, hollow sucker rod and FRP sucker rod. Commonly we use thesucker rod coupling to connect the sucker rod. The sucker rod also has various specs to fit different environments and applications.

One piece of sucker rod and one pieces of sucker rod with coupling with explanation on it.

Explanation of the sucker rod.

Classification

The sucker rod has various types:

  • Common sucker rod
    • Grade C sucker rod.
    • Grade D sucker rod.
    • Grade K sucker rod.
    • Grade KD sucker rod.
  • High tensile sucker rod: grade H sucker rod
    • Grade HY sucker rod.
    • Grade HL sucker rod.
    • Grade KHL sucker rod.
  • Special sucker rod: hollow sucker rod
  • Continuous sucker rod.
  • Screw pump sucker rod
    • Taper thread sucker rod
    • Plug sucker rod.
  • FRP sucker rod: fiber reinforced plastic sucker rod
  • Flexible sucker rod
    • Carbon fiber composite sucker rod
    • Steel wire rope sucker rod.
  • Electric sucker rod

Mechanical sheet of the different grade sucker rod
Item Grade Tensile strength MPa Yield strength MPa Percentage elongation % Contraction percentage of area %
ESRM-01 C 620 - 795 ≥ 415 ≥ 13 ≥ 50
ESRM-02 K 620 - 795 ≥ 415 ≥ 13 ≥ 60
ESRM-03 D 795 - 965 ≥ 590 ≥ 10 ≥ 50
ESRM-04 KD 795 - 965 ≥ 590 ≥ 10 ≥ 50
ESRM-05 HL 965 - 1195 ≥ 795 ≥ 10 ≥ 45
ESRM-06 HY 965 - 1195 N/M N/M N/M

Three pieces of Grade H sucker rod on the white background.

Grade H sucker rod is the extra high tensile sucker rod.

Two different type of hollow sucker rod on the white background.

Hollow sucker rod is a special structure of the sucker rod.

Specification

  • Material: high quality carbon steel or alloy steel.
  • Grade: C, D, K, H.
  • Rod diameter: 5/8", 3/4", 7/8", 1" and 1-1/4".
  • Length:
    • 25', 26' and 30' for sucker rod.
    • 2', 4', 6', 8', 10' for pony rod.

Item Size Rod D. Thread D. Length O.D. of pin shoulder Length of pin Wrench square size
Length width
ESRS-01 5/8" 5/8" 5/8" 2' / 4' / 6' / 8' / 10' / 25' / 30' 31.75mm 31.75mm ≥ 31.75mm 22.23mm
ESRS-02 3/4" 3/4" 3/4" 38.10mm 36.51mm ≥ 31.75mm 25.40mm
ESRS-03 7/8" 7/8" 7/8" 41.28mm 41.28mm ≥ 31.75mm 25.40mm
ESRS-04 1" 1" 1" 50.80mm 47.63mm ≥ 38.10mm 33.34mm
ESRS-05 1-1/8" 1-1/8" 1-1/8" 57.15mm 53.98mm ≥ 41.28mm 38.10mm

Production

  • For common sucker rod: 
    Raw Material Test → Cold Straighten → Cut → Forge → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Assembly → Protective Cap → Package → Aczoiling Treatment.
  • For extra high tensile sucker rod: 
    Raw Material Test → Cold Straighten → Cut → Forge → Quenched And Tempered → Hot Treatment → Hot Alignment → Shot Blasting → Rod Head Machining → Surface Quenched → Assembly → Protective Cap → Package → Aczoiling Treatment.
The sucker rod is in the process of shot blasting.

Shot blasting.

Several workers are packing the sucker rod.

Packing.

Package and loading

  • Package:
    • Metal pallet for saving space and convenient to transport.
    • Plastic paper covering the sucker rod and metal box covering the rod head and then metal pallet for better corrosion and abrasion resistance.
  • Pallet size (L × W× H):
    • 7930mm × 550mm × 330mm
    • 8300mm × 550mm × 330mm
    • 9440mm × 550mm × 330mm
  • Container size:
    • 40' GP (40' general purpose container).
    • 40' OT (40' open top container).

Item Dimension Length Ft. Pieces/ bundle Net weight KG Gross weight KG Total pieces
ESRP-01 5/8" 25' 150 1930 1938 1920
ESRP-02 26' 150 1945 1953 1920
ESRP-03 30' 150 2210 2218 1690
ESRP-04 3/4" 25' 100 1850 1858 1345
ESRP-05 26' 100 1865 1873 1334
ESRP-06 30' 100 2120 2128 1174
ESRP-07 7/8" 25' 80 1920 1925 1039
ESRP-08 26' 80 2012 2017 991
ESRP-09 30' 80 2290 2290 897
ESRP-10 1" 25' 60 1915 1923 780
ESRP-11 26' 60 2006 2014 744
ESRP-12 30' 60 2278 2283 657
ESRP-13 1-1/8" 25' 50 2044 2052 609
ESRP-14 26' 50 2135 2143 583
ESRP-15 30' 50 2392 2398 521f
Item Dimension Length Ft. Pieces/ bundle Net weight KG Gross weight KG Total pieces
ESRP-01 5/8" 25' 150 1930 1938 1920
ESRP-02 26' 150 1945 1953 1920
ESRP-03 30' 150 2210 2218 1690
ESRP-04 3/4" 25' 100 1850 1858 1345
ESRP-05 26' 100 1865 1873 1334
ESRP-06 30' 100 2120 2128 1174
ESRP-07 7/8" 25' 80 1920 1925 1039
ESRP-08 26' 80 2012 2017 991
ESRP-09 30' 80 2290 2290 897
ESRP-10 1" 25' 60 1915 1923 780
ESRP-11 26' 60 2006 2014 744
ESRP-12 30' 60 2278 2283 657
ESRP-13 1-1/8" 25' 50 2044 2052 609
ESRP-14 26' 50 2135 2143 583
ESRP-15 30' 50 2392 2398 521

Several bundle sucker rod packaged by the angle steel and bolts are placed on the ground.

Sucker rods are packaged by the metal pallet.

Several pallets sucker rod on the ground with plastic paper covering the rod body and metal box covering the rod head.

Sucker rod in plastic paper, metal box, angle steel and bolts package.

Features

  • Various grade to fit different requirements.
  • Various types to satisfy different environments.
  • Angle steel and bolts package for convenient transport and saving space.
  • Plastic or metal sucker rod protectors to protect the threads.
  • Plastic paper and metal box to resist the corrosion and abrasion.
  • Special specifications can be customized.
Two bundle of sucker rod with plastic cap on the rod head.

Plastic cap can protect the thread.

A bundle of sucker rod is packaged by the angle steel and bolts.

Angle steel and bolts package for saving space and convenient transport.

Applications

The sucker rod is widely used in the oil extraction industries. The different grade sucker rod can be applied in different applications.

  • Grade C sucker rod: Moderate strength, has a certain degree of resistance to the sulfide stress cracking, it is suitable for sour environments.
  • Grade D sucker rod: The grade D sucker rod is manufactured from high quality heat treated steel alloy, which has high tensile and yield strength, it is can be used in the non-corroding or mildly corroding environments.
  • Grade K sucker rod: The grade K sucker rod has a good corrosion resistance in H2S, CO2, and NaCl media, it is widely used in corrosion environments.
  • Grade H sucker rod: This is a type of sucker rod with extra high tensile strength it is ideal for deep and large wells.

Detail more >>
Hollow Sucker Rod for Effective Oil Extraction

Hollow Sucker Rod for Effective Oil Extraction

Hollow Sucker Rod with Various Spec and Type

Introduction

A piece of hollow sucker rod with internal thread rod head.

Internal thread rod head hollow sucker rod.

The hollow sucker rod is a special sucker rod designed for oil extraction of high pour point, high viscosity and high wax content. It is combined with threaded joints, sealing and rod body. The rod body is made of seamless steel tube and the threaded joint is connected with the rod body through friction welding and heat treatment. The pin thread is formed by roller.

The hollow sucker rod has hollow sucker rod and hollow polished sucker rod, hollow pony rod types.

Specifications

  • Rod diameter: 32mm, 34mm, 36mm, 38mm, 42mm, 48mm.
  • Rod thickness: 5.0mm - 6.0mm.
  • Nominal thread: 1-7/16" - 2".
  • Length:
    • 7.5m - 9m for hollow sucker rod.
    • 0.6m - 3.5m for hollow pony rod.

Specification of Hollow Sucker Rod And Hollow Pony Rod
Item Rod body Nominal thread O.D. Joint Wrench size Length
Diameter Thickness Length Thickness Rod pony
EHSR-32 32mm 5.5mm 1-7/16" 50mm 35mm 46mm 7.5m - 9m 0.6m, 1m - 3.5m
EHSR-34 34mm 5.0mm, 5.5mm 1-9/16" 50mm 35mm 46mm 7.5m - 9m 0.6m, 1m - 3.5m
EHSR-36 36mm 5.0mm, 5.5mm, 6.0mm 1-9/16" 50mm 35mm 46mm 7.5m - 9m 0.6m, 1m - 3.5m
EHSR-38 38mm 6.0mm 1-3/4" 56mm 41mm 49mm 7.5m - 9m 0.6m, 1m - 3.5m
EHSR-42 42mm 6.0mm 1-7/8" 60mm 41mm 54mm 7.5m - 9m 0.6m, 1m - 3.5m
EHSR-48 48mm 5.5mm 2" 62mm 41mm 58mm 7.5m - 9m 0.6m, 1m - 3.5m
Specification of Hollow Polished Rod
Item Rod body Nominal thread O.D. Joint Wrench size Length
  Diameter Thickness     Length Thickness  
EHPR-36 36mm 6.0mm, 6.5mm 1-9/16" 50mm 35mm 46mm 7.5m - 9m
EHPR-38 38mm 6.0mm 1-3/4" 56mm 41mm 49mm 7.5m - 9m
EHPR-42 42mm 6.0mm 1-7/8" 60mm 41mm 54mm 7.5m - 9m

Classification

  • Hollow sucker rod type: hollow sucker rod, hollow polished rod and hollow pony rod.
  • Rod head type: internal thread rod head and external thread head.
  • Connection type: coupling connection and direct connection.
    • Coupling connection for two external thread rod head hollow sucker rod.
    • Direct connection for one external and one internal thread rod head hollow sucker rod.

Package

The package of the hollow sucker rod has two types:

  • Metal pallet.
  • Wooden pallet and plastic film.
Two bundle of hollow sucker rod and a wooden box of accessories in the container.

Hollow sucker rod in metal pallet package.

A wooden pallet of hollow sucker rods on the ground and is covered by the plastic film.

Hollow sucker rod in wooden pallet and plastic film package.

Features

  • The threaded joint is designed with bearing surface to make the joint more reliable.
  • Hollow structure can be injected with hot oil, vapor. It can also be used for running heating cable.
  • High rigidity to bear large torque.
  • Decrease the viscosity of the oil and the wax deposit in the well to increase the pump efficiency.
  • There are plastic caps to protect the thread of the hollow sucker rod.
  • Color painting on the plastic caps is available.
  • Metal pallet package for saving space and convenient to transport.
Several pallets of hollow sucker rod are placed in the warehouse.

The pallet package can save space and make it neat.

Two pallet of hollow sucker rods with the yellow color paint on the plastic caps.

Color painting on the plastic caps is available.

Applications

  • Hollow sucker rod is used for exploiting thickened oil, and crude oil of high solidification point and wax content.
  • The hollow sucker rod can be used for flushing sand and salt, it is ideal for small well and separate-layer oil exploitation.
  • The hollow sucker rod can be used in the oil extraction through heat carrier. Inject the chemicals and heat carrier including the hot oil, hot water and steam.
  • The hollow sucker rod can be used in hollow sucker rod electric heating device. Just run the electric cable in the center hole of the hollow sucker rod.
  • Drive rod for screw pump is a special design of hollow sucker rod which can be used for driving underground screw pump. Because the hollow sucker rod has the high rigidity and large torque resistance.

Detail more >>

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