Failing Exploration Thread /Failing Thread /Fedp Thread Drill Pipe

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Failing Exploration Thread 2 3/8" Fedp Drill Pipe for Water Well Drilling



API 5CT Tubing OCTG Tubing EUE Tubing

FAILING EXPLORATION Thread /FAILING thread /FEDP thread Drill Pipe

FEDP thred Drill Pipe

1. Drill pipe, is hollow, thin-walled, steel or aluminium alloy piping that is used on drilling rigs. It is hollow to allow drilling fluid to be pumped down the  hole through the bit and back up the annulus. It comes in a variety of sizes, strengths, and wall thicknesses, but is typically 27 to 32 feet in length (Range 2). Longer lengths, up to 45 feet, exist (Range 3). 

2. 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. 

3. Our Drill Pipe comes in all Grades; Grade "D", "E", "X", "G", "S". Our Tool Joints are manufactured to API Standards. Break-Out Flats and/or Break-Out Lugs are offered in many different configurations, from OEM to custom design.  

4. 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.    

5. 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 
1. NC26
2. 2-7/8" IF modified drill pipe:
3. 2-7/8" FEDP drill pipe:
4. 3-1/2" API drill pipe: 

DTH drill pipes specifications
Outer diameterThread

Wall thicknessLength
FEDP (Failing connection)
Mayhew Junior
Mayhew Regular
API 2 3/8" REG
API 2 7/8" REG
API 3 1/2" REG
API 4 1/2" REG
API 6 5/8" REG

API 2 3/8" IF
API 2 7/8" IF
API 3 1/2" IF
API 4 1/2" IF

3 1/2" BECO
4 1/2" BECO
5 1/4" BECO
10" BECO
12" BECO
893 1/241000-6000
1144 1/26.34000-9000
1335 1/46.34000-9000
1405 1/28.84000-9000

2-3/8 IF Flush3 1/2"0.3753 1/2"
2-3/8 IF2 3/8".280/2543 1/2"
2-3/8 FEDP2 3/8".280/2543 1/8"
2-3/8 Mayhew Junior2 3/8".280/2543
2-3/8 Mayhew Regular(MR)2 3/8".280/2543

FAILING EXPLORATION Thread /FAILING thread /FEDP thread Drill Pipe
Tool Joint Name & Nominal SizeMaterialPin DimensionsBox DimensionsThread
O.D.Pin LengthPin IDPin Dia. @ BaseBox LengthBox Max IDTaperThread / InchThread Form
2 3/8″ FEDP3 1/8″2 3/4″1 3/8″2.480″3″1 3/4″2″4TAPER
2 7/8″ FEDP3 3/4″3 1/4″1 7/8″3.100″3 1/2″2 1/4″2″4TAPER

Quality warranty:

Our products are made of high quality steel and all spares parts are inspected strictly before shipping. We have quickly responses for your complaint and suggestion.

Using ply-wooden cases and pallet for package to protect the products and avoid the damagement during transportation. Also we can customize package according to your special requests.

Production time:
Generally need 10-20 days

By air, By Express or By sea according to your requests.


Q: Are you a manufacturer or trading company ?
A: We are a specialized manufacturer.

Q: How about the delivery terms ?
1. Payment: T/T, L/C, Western Union, Paypal, 30% deposit in advance and rest before delivery.
2. Min. order quantity: 1 piece.
3. Transportation: By DHL/TNT/Fedex express, air, sea, train.

Q: How about discount ?
A: Price is based on products and order quantity.

Q: Do you accept sample order?
A: Yes sure, please contact us for details.

Q: How about your after-sales service?
A: As a manufacturer, we offer promt technology support for all problems and questions. Besides, we accept goods return or replace for quality problem.

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