other
HOT PRODUCT
  • Cement Head
    Cement Head

    ‌RockySea Petro Cement HeadData sheetAdvantageRockySea Petro has extensive experience in manufacturing Cementing head, and our products have the following advantages.1. The main body is made of thick walled seamless pipes, which are high-pressure resistant and have a long service life.2. Equipped with quick fitting joints, it is easy to connect on site and can be connected to API long round buckles/short round buckles/trapezoidal buckles, with a wide range of applications.3. The dual indicator structur

    VIEW DETAILS
  • Wet Gas Well Multiphase Flow Meter
    Wet Gas Well Multiphase Flow Meter

    ‌RockySea Petro Wet Gas Well Multiphase Flow MeterRockySea Petro passed ISO9001 certification in 2005 and three-system certification in 2017. The company has advanced production equipment, inspection, measurement and test equipment, which can meet the requirements of product design, development, production and service and has the only multiphase flow laboratory for Sinopec.The main products are single-screw and twin-screw oil-gas mixed pump, MFM2000 series multiphase flowmeter, LPT multiphase metering devic

    VIEW DETAILS
  • Mud Pump
    Mud Pump

    ‌RockySea Petro Mud PumpDescriptionIn the operation of using rotary drilling method to drill oil and natural gas wells, the drilling reciprocating pump is used to pump drilling fluid, i.e. mud, to circulate and flush the well. During drilling, the mud pump injects mud into the wellbore along with the drill bit, playing a role in cooling the drill bit, cleaning drilling tools, fixing the wellbore wall, driving drilling, and bringing rock cuttings back to the surface.So drilling pumps are usually

    VIEW DETAILS
  • ESP Wellhead And X-Mas Tree
    ESP Wellhead And X-Mas Tree

    ‌RockySea Petro ESP Wellhead And X-Mas TreeFull support on your customised requirementThe strictest quality standards on ESP wellhead and X-mas tree25 years ESP wellhead and X-mas tree manufacturing experienceRockySea Petro Petro manufactures ESP wellhead and X-mas tree in China. We have our own factory of ESP wellhead and X-mas tree. RockySea Petro Petro provide the high quality and competitive price on ESP wellhead and X-mas tree for you. Contact us now for ESP wellhead and X-mas tree quotation.Description 

    VIEW DETAILS
  • Flush by Unit
    Flush by Unit

    ‌RockySea Petro Flush by UnitData sheetApplicationsRSR of RockySea can efficiently and quickly complete various oilfield workover operations as the following: 1).Heavy duty workover serviceDrilling serviceDownhole stuck freeing serviceSealing and channeling serviceCasing shaping serviceCasing repair service2).Shallow- to high-depth well interventions, including:Killing wellsFlushing productions wellsChanging wellhead valvesPressure-testing wells.Changing polished rods Spacing and respac

    VIEW DETAILS

OCTG Drill Pipe

Date:2024-05-05 Popularity:743

RockySea Petro Drilling Pipe


RockySea Petro has abundant manufacturing experience in  OCTG drilling pipes.


  • Exported to the United States, Canada, Europe, Africa and Middle East and all over the world.
  • Our  drilling pipes also have various types to fit different environments and applications.
  • The company has passed ISO 9001,  and other quality certification systems.
  • RockySea Petro its establishment, RockySea Petro has always insisted on taking the market as the center, taking R & D as the driving force, and constantly improving product quality.

Description

The drilling pipe is the basic component of the drill string, which is mainly used to transmit torque, convey drilling fluid, and continuously connect the drill pipe in the drilling process to deepen the borehole.
The working environment of drill pipe is the worst in drilling operation. In addition to bearing the torque, it is also subject to the tensile stress generated by the weight of the drill string itself, and the higher the stress, the greater the stress.

Upset Types

The pipe body and joint of the drill pipe in use are connected by butt welding. In order to increase the strength of the joint, the butt welded parts at both ends of the pipe are upset. According to intl standards, there are 3 types of upset: IU(internal upset), EU(external upset)and IEU(internal and external upset).

EU:
The inner diameter of the extra upset drill pipe is the same, but the outer diameter of both ends of the pipe body is increased. The outer diameter of this drill pipe joint is larger than the outer diameter of the drill pipe joint of the same size, which increases the contact friction between the joint and the well wall when rotating in the well and is easy to wear; Because the inner diameter of the drill pipe is the same as the inner diameter of the pipe body, the flow resistance is small when the drilling fluid is circulated.
IU: 
The inner upset reduces the inner diameter of both ends of the pipe body to increase the thickness of the pipe wall. The outer diameter of this drill pipe is the same, and the outer diameter of the joint is not too large. When rotating in the well, the contact between the joint and the well wall is small, and the wear is also small. However, because the inner diameter of the upset part is smaller than the inner diameter of the pipe body, the flow resistance during the circulation of drilling fluid is increased.
IEU: 
Internal and external upset drilling is to reduce the inner diameter and increase the outer diameter at both ends of the pipe to increase the wall thickness of the pipe at both ends. The drill pipe of this structure combines the advantages of the drill pipes of the above two structures.

Features 

Production steps

RockySea Petro drilling pipe production mainly follows these steps:
Raw Material Test → raw pipe end heating → pipe end upset → pipe body straightening →pipe bodγ and end inspection → upset pipe finished
Then for welding heat treatment it follows:
Austenite→quenching→temper→quenching→temper→Non-destructive inspection→pipe and tool joint friction welding→annealing→welds processing→weld zone inspection→finished drill pipe

Basic Parameters

Nominal sizeNominal weightGradeUpset typeOD (mm)Wall thickness(mm)
2 3/86.65EEU60.327.11
2 7/810.4EEU73.029.19
3 1/213.3EEU88.99.35/11.4
414EIU/EU101.68.38
4 1/216.6/20EIEU/EU114.38.56/10.92
519.5/25.6EIEU1279.19/12.7
5 1/221.9/24.7EIEU139.79.17/10.54
6 5/825.2/27.7EIEU168.38.38/9.19


Data Sheet

Nominal sizeNominal weightGradeUpset typeOD (mm)Wall thickness(mm)
2 3/86.65EEU60.327.11
2 7/810.4EEU73.029.19
3 1/213.3EEU88.99.35/11.4
414EIU/EU101.68.38
4 1/216.6/20EIEU/EU114.38.56/10.92
519.5/25.6EIEU1279.19/12.7
5 1/221.9/24.7EIEU139.79.17/10.54
6 5/825.2/27.7EIEU168.38.38/9.19



RockySea Petro Copyright © 2008-2025 Inc. SITEMAP