Favorable Load-Bearing Excellent Dustproof Function Aqbqnq Wireline Drill Rod

• Type: Wireline Drill Rod
• Usage: Coring
• Certification: CE, ISO
• Material: Cr-Mo Steel, 4130
• Surface Treatment: Heat Treatment
• Industry: Rock Coring Survey
• Model NO.: AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW
• Transport Pack: Iron Bundle
• Product Name: Drilling Rod, Drill Pipe
• Thread Type: Pi, Metric, Dcdma etc.
• Connection: Male/Female
• Surface Finish: Smooth
• Name: Drill Rod, Drill Pipe
• Full Name: Rock Coring Drilling Rod
• Machine Type: Drill Tool
• Application: Oil Mining, Coal Mining, Well Drilling, Ore Minin
• Formation: Medium, Hard, Hard Rock Formation
• Transport Package: Nude/Wooden Case/Carten
• Specification: BQ, NQ, HQ, PQ, SQ
• Trademark: BEST
• Origin: China
• HS Code: 73045120
• Production Capacity: 500000 Pieces/Year

Product Description

Product Description:

some additional details about the usage methods and characteristics of drill rods in the rock coring and drilling industry:

Usage Methods:

1. Percussive Drilling: In percussive drilling, drill rods are used in conjunction with a percussion mechanism, such as a hammer or down-the-hole (DTH) hammer. The rods transmit impact energy from the hammer to the drill bit, which helps break and dislodge rock or soil.
2. Rotary Drilling: Rotary drilling involves the use of a rotary drilling rig and drill rods to create boreholes by rotating the drill bit. The drill rods transfer torque from the drilling rig to the bit, allowing the bit to cut through the formation.
3. Directional Drilling: Drill rods are utilized in directional drilling, where the borehole is intentionally steered to reach targets at different angles or depths. Specialized drill rods with adjustable bent sections or deflection mechanisms are employed to control the drilling direction.
4. Wireline Drilling: Wireline drilling utilizes drill rods with a wireline system, allowing the drill bit and core barrel to be lowered and raised independently of the rods. This facilitates efficient core retrieval and reduces downtime during coring operations.

Usage Characteristics:

1. Rod Material Options: Drill rods can be made from various materials based on the specific requirements of the drilling operation. Common materials include carbon steel, alloy steel, stainless steel, and composite materials like fiberglass or carbon fiber.
2. Thread Types: Drill rods feature different thread types, such as API (American Petroleum Institute) threads or metric threads, to ensure compatibility and interchangeability with drilling equipment and tooling.
3. Rod Design: Drill rods may have different designs, such as solid rods, hollow rods, or double-wall rods, depending on the drilling technique and the need for sample retrieval or fluid circulation.
4. Rod Handling Equipment: Specialized equipment, such as rod handlers or rod racks, are used to safely store and handle drill rods during drilling operations, minimizing the risk of damage or injury.
5. Rod Protection: Drill rods may be equipped with protective measures, such as thread protectors or rod guards, to prevent thread damage, corrosion, or contamination during storage or transportation.
6. Rod Inspection: Regular inspection techniques, including visual inspection, non-destructive testing (NDT), or ultrasonic testing, are employed to assess the condition and integrity of drill rods and identify any potential defects or fatigue.
7. Rod Maintenance: Proper maintenance practices, such as cleaning, lubrication, and periodic inspection, help extend the lifespan of drill rods, optimize their performance, and ensure safe drilling operations.
8. Rod Retrieval: Specialized retrieval tools, such as overshots or fishing tools, are used to recover stuck or lost drill rods from the borehole, minimizing downtime and potential damage to the drilling equipment.

These additional details provide a deeper understanding of the usage methods and key characteristics of drill rods in the rock coring and drilling industry, highlighting the various drilling techniques, materials, and equipment considerations involved.

 

Size	Outer Diameter (mm)	Inner Diameter(mm)
AQ	44.7	37.3
BQ	55.7	46.1
NQ	70.0	60.2
HQ	89.0	78.0
PQ(PHD)	114.5	101.5
BTW	56.3	48.0
NTW	73.3	64.0
HTW	91.3	81.0
AW/AWJ/AWY	43.7	30.7
BW/BWJ/BWY	54.0	38.0
NW/NWY	66.8	51.0
HW	89.0	71.0
42mm	42.0	30.0
50mm	50.0	37.0
60mm	60.0	48.0
70mm	73.0	54.6
90mm	89.0	69.0
S75A	71.0	60.0
S95A	89.0	78.0
S110	110.0	98.0
S130	129.0	117.0

 

 

Name:	Wireline Drill Rod
Product Basic parameters
Model:	AQ,BQ,LTK48,NQ,NQ3,HQ,HQ3,PQ,PQ3 NTW, BTW, HTW
Material:	Alloy Steel Tubing
Dimensions:	0.5,1m, 1.5m,  2m,2.5,3m length or customized
Color:	Black or customized
Applications:	Drilling Tools
Standard:	ISO-9001
Application:	Mining or geological Drilling

 

Rod Model	OD (mm)	ID (mm)	Thread Pitch(mm)	Pin Length(mm)	Rod Length(m)	Unit Bundle Qty (pcs)
BAU(Q)	55.6	46.1	8.5	44.5	3	19/25/30
NAU(Q)	69.9	60.3	8.5	44.45	3	19/25/30
HAU(Q)	88.9	77.8	8.5	44.45	3	19/25/30
BRAU(RQ)	55.6	46.1	8.5	42	3	19/25/30
NRAU(RQ)	69.6	60.3	8.5	42	3	19/25/30
HRAU(RQ)	88.9	77.8	8.5	42	3	19/25/30
PHD	114	102	10.2	63	3	79/25/30

 

 

FAQ:

Q11: How are drilling rods handled safely?
A: Proper lifting techniques and equipment such as overhead cranes or pipehandling machines should always be used when handling heavy drilling rods. Gloves help prevent pinched fingers. Clear the area and watch for pinch points when assembling the drill string.

Q12: What is the purpose of drill collars?
A: Heavy thick-walled drill collars placed at the bottom of the drill string above the bit are used to provide weight on bit and transmit high torque needed for drilling harder formations. They have no threads and cannot be disconnected like drilling rods.

Q13: How does wear affect drilling rods?
A: Over time drilling rods experience wear from abrasive rock cuttings and friction during rotation. Thinning walls and thread damage reduces strength and increases break risk, so rods need periodic inspection and replacement as needed to maintain drill string integrity.

Q14: What causes drilling rod failures?
A: Common causes of drilling rod failures include: fatigue from cyclic bending stresses, abrasive wear thinning the pipe, thread damage from poor makeup, corrosion inside or out, unintended impacts, over-torque when connecting, manufacturing defects. Proper inspection and replacement prevents failures.

Q15: How are damaged or worn drilling rods replaced?
A: To replace a rod, the drill string is first pulled up out of the hole. Each individual rod is then spin-broken or jarred loose using a power spinning or jarring tool from the top. The damaged rod can then be removed and replaced with a new rod, which is screwed back into the drill string using a power tong.

 

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