Roschen  Global
English
PRODUCTS
Home / Products / API Drill Pipe / Mayhew Jr drill pipe or Drill Rod
Share to:

Mayhew Jr drill pipe or Drill Rod

ROSCHEN is the best suitable Mayhew Jr (Junior) drill pipe manufacturer and supplier as long as you need flexible delivery time, we design and product day and night in order to deliver on schedule, One Stop Delivery is also available as long as you trust us, we provide the world fastest before and after sales service in your city office or mining office, we are not just a good manufacturer, we also provide our honest solutions to solve your problems. In a word, we are a family and we are looking for friends and partners, and being friends first.

Quantity:
  • 2-7/8 Mayhew Jr Pipe Flush / 2-3/8 IF Flush
  • ROSCHEN
  • ROS-DP-2-7/8 Mayhew , 2-3/8 IF Flush

Product Description

Mayhew Jr drill pipe or Drill Rod manufacture

 

Drill pipe is designed to allow the introduction of a drilling fluid or air to the bit and to provide the mechanism to transfer energy developed by the drill motor to the bit.   The correct selection of drill pipe, in most instances, determine how successful you are and what options you have as far as depth, bore hole size, and push and pull down ability. The selection of drill pipe is one of the most important decisions mainly due to cost and rig capability.  Below is a breakdown of what the most popular drill pipes are and their benefits. 

Mayhew Jr (Junior) drill pipe engineered with weld on joints

NC26

2-7/8" IF modified drill pipe:

2-7/8" FEDP drill pipe:

3-1/2" API drill pipe:

 

ROSCHEN is the best suitable Mayhew Jr (Junior) drill pipe manufacturer and supplier as long as you need flexible delivery time, we design and product day and night in order to deliver on schedule, One Stop Delivery is also available as long as you trust us, we provide the world fastest before and after sales service in your city office or mining office, we are not just a good manufacturer, we also provide our honest solutions to solve your problems. In a word, we are a family and we are looking for friends and partners, and being friends first. 

                                                         Mayhew Junior Rods Specifications
Description Pipe   OD Pipe   Wall Connection   OD Connection   ID Length(ft)
2-3/8 IF Flush 3   1/2 0.375 3   1/2 1   3/4 20
2-3/8 IF 2   3/8 1.10 3   1/2 1   3/4 10,   15, 20
2-3/8 FEDP 2   3/8 1.10 3   1/8 1   1/2 10,   15, 20
2-3/8 Mayhew Jr 2   3/8 1.10 3 1   1/2 10,   15, 20
2-3/8 Mayhew Jr 2   3/8 0.19 2   3/4 1   1/2 5,   10
2-7/8 Mayhew Jr Pipe Flush 2   7/8 0.362 2   7/8 1   1/2 10,   15, 20
Mayhew Reg. Flush 3   1/2 0.375 3   1/2 1   1/2 20
Mayhew Reg. 2   3/8 1.10 3   1/2 or 3 1/4 1   1/2 10,   15, 20
2-7/8 IF 4   1/2 0.337 4   1/8 2   1/2 10,   15, 20
3-1/2 IF 5   1/2 0.362 4   3/4 2   11/16 10,   15, 20
3-1/2 API Reg Flush 4   1/2 0.337 4   1/2 1   1/2 10,   15, 20
4-1/2 API Reg Flush 5   1/2 0.76 5   1/2 2   1/4 10,   15, 20
AWJ/AW w/Flats 1   3/4 0.752 1   3/4  5/8 5,10
NWJ/NW w/Flats 2   5/8 0.752 2   5/8 1-1/4   or 1-3/8 5,10
Name A B C D E F G H
TOOL JOINTS:1
2 3/8 API Regular 2-3/8" 3-1/8" 2-5/8" 3 5 3 60°   API 1
2 7/8 API Regular 2-7/8" 3   3/4 3 3   1/2 5 3 60°   API 1   1/4
3 1/2 API Regular 3   1/2 4   1/4 3   1/2 3   3/4 5 3 60°   API 1   1/2
4 1/2 API Regular 4   1/2 5   1/2 4-5/8" 4   1/4 5 3 60°   API 1   1/4
2 3/8 API Internal Flush 2-3/8" 3-3/8" 2-7/8" 3 4 2 60°   API 1   3/4
2 7/8 API Internal Flush 2-7/8" 4-1/8" 3   25/64 3   1/2 4 2 60°   API 2-1/8"
3 1/2 API Internal Flush 3   1/2 4   3/4 4  1/64 4 4 2 60°   API 2   11/16
2 3/8 Mayhew Junior 2-3/8" 2   3/4 2   21/64 2   1/4 4 2 60°   Mod. API 1   1/2
2 3/8 Mayhew Regular 2-3/8" 3   1/4 2   35/64 3 4 1   1/2 60°   Mod. API 1-5/8"
2 7/8 Mayhew Full Hole 2-7/8" 3   3/4 3  3/64 3-3/8" 4 1   1/2 60°   Mod. API 2
2 3/8 Failing Exploration 2-3/8" 2   31/32 2   1/2 2   3/4 4 2 60°   Mod. API 1   1/2
2 7/8 Failing Exploration 2-7/8" 3   3/4 3-1/8" 3   1/4 4 2 60°   Mod. API 1-7/8"
2 3/8 Hughes Acme Regular 2-3/8" 3-1/8" 219/32 3 4 3-3/8" 29°   Acme 1
2 3/8 Winter Weiss 2-3/8" 3   1/4 235/64 3 4 1   1/2 60°   Mod. API 1   1/2
2 7/8 Winter Weiss 2-7/8" 37/16 235/64 3 4 1   1/2 60°   Mod. API 1   1/2
3 1/2 API Full Hole 3   1/2 4-5/8" 4 3   3/4 5 3 60°   Mod. API 27/16
FLUSH JOINT TAPERED THREAD
United Geophysical (1 11/16 OD) 111/16 111/16 1-3/8" 1 6 3 29°   Acme 1

mayhew jr drill pipes

How about ROSCHEN’s drill pipe?

Our drill pipe is used in most rotary drilling operations (shallow and deep). API drill pipe are fabricated by various API certified manufacturers around the world, principally for use in the drilling of deep wells for the recovery of oil and natural gas. API drill pipe size is denoted by the outside diameter of the pipe body and its associated nominal (pipe body) weight per unit length. The nominal weight per unit length defines the wall thickness and the inside diameter. The lengths of drill pipe elements called pipe body and tool joints, When tool joints (box and pin) are added to a pipe body the average actual weight per unit length of the drill pipe element is increased above the pipe body nominal weight per unit length. API drill pipe is also classified by API material (steel) grade. The API material grade designations and respective standards normally decide minimum yield, maximum yield, and minimum tensile strength of the steel grade. The actual steel used to produce the various API grades for drill pipe fabrication is one of the AISI grade classifications of steel produced in US steel mills. For an AISI grade of steel to be used to fabricate drill pipe of a particular API grade the AISI grade must satisfy the minimum and maximum specification.


QUICK LINKS

CONTACT US

Add: 65 EAST XINHUAN ROAD, SHANGHAI, CHINA
Tel: +86-21-54994419
Fax: +86-21-54380177
Whatsapp/WeChat: +86-13764195009

SALES TEAM LEADERS

Dr.Robert Roschen  /  Bill / Phiger  /  Rebecca

KEEP IN TOUCH
Copyright © 2019 Roschen Group Limited. All Rights Reserved