PDC Drill Bit

Brightway can design and manufacture 3.5″-17.5″ inch PDC drill bits, PDC drill bits and other specifications of polycrystalline diamond compact drill bits. Using high-performance cutting teeth and high-quality TSP polycrystalline diamond compact, it has high drilling stability and a long service life.

PDC drill bits (polycrystalline diamond compact drill bits) are widely used in drilling engineering due to their advantages of fast drilling speed, long service life, no moving parts, and bottom hole safety. Brightway designs and produces PDC drill bits with specifications such as 3-1/2 “(3.5 inches), 6-1/2” (6.5 inches), 8-1/2 “(8.5 inches), 12-1/4” (12.25 inches), and 17-1/2 “(17.5 inches), using high-performance cutting teeth and high-quality TSP polycrystalline diamond chips, which have high drilling stability and long service life.

Brightway PDC Drill Bit Advantages

● Optimized bit profile and cutting st ructure, force balance and anti-whirl design reduce vibration severity while achieving aggression, it creates smoother, effcient drilling.
● Conical diamond teeth at the behind of Φ16mm primary cutters help ploughing formation, which not only prevent the primary cutters from impact damage, but also increase ROP and prolong bit life.
●Computational Fluid Dynamics Similuation and Hydraulics Optimization for better cutter cooling and cutting evacuation to enhance ROP and Bit life.
● TSP Premium cutters for Super Gage Protection: enhanced bit stability, bit life and hole quality.
 

Brightway PDC Drill Bit Standard Model and Specification

Brightway PDC drill bits cover sizes ranging from 3-1/2 “to 17-1/2”, including: 3-1/2 “(3.5 inches), 6-1/2” (6.5 inches), 8-1/2 “(8.5 inches), 12-1/4” (12.25 inches), 17-1/2 “(17.5 inches), etc. The types of drill bits include: PDC core bits; PDC reaming bits; PDC reamers, etc. The design of the drill bit blade includes 5-8 straight blade blades and spiral blade blades, etc. The PDC drill bit model standard BWS series covers common drill bit parameters.

Brightway BW Series PCD Drill Bit Model Specifications (3-1/2 “~17-1/2”)（3-1/2″～17-1/2″)
BWS914	BWS915	BWS916	BWS917	BWS613	BWS614	BWS615	BWS616	BWS617	BWS618	BWS313
BWS314	BWS315	BWS316	BWS317	BWS318	BWS319	BWS934	BWS935	BWS936	BWS937	BWS634
BWS635	BWS636	BWS637	BWS638	BWS333	BWS334	BWS335	BWS336	BWS337	BWS338	BWS339

 

Optional features of Brightway BW series PDC drill bits
B: Inverted eye teeth	D: Used for directional wells	H: Enhanced diameter protection	J: Vibration damping joint
M: Motor guidance	RS: Rotary oriented	NC: Nano anti mud coating	V: Mixed teeth

 

Application scenarios of Brightway PDC drill bits

Having strong sensitivity to geological formations and usage measures is the key to using PDC drill bits effectively. The selection of appropriate drill bit types for geological formations is mainly based on rock drillability and the complexity of the formation. If selected improperly, it can lead to premature damage to the PDC drill bit. Gravel layers with larger particles and hard strata; Not applicable! The applicable formations of PDC drill bits:

● Medium soft / soft strata
● soft with hard strata
● Large homogeneous strata
 

BW series 8.5-17.5 inch PDC Drill Bit Parameter (Partial)

■ 8.5 inch PDC Drill Bit Parameter as follow

Model	8-1/2″ BW605J (215.9 mm)	8-1/2″ BWS915(215.9 mm)	8-1/2″ BWS916 (215.9 mm)
Blade Count	5 Stright Blades	5 Sprial Blades	6 Sprial Blades
Primary Cutter Size	Ф13 mm Ф16 mm	Ф19 mm	Ф19 mm
Nozzles	5 Standard Series (SP)	7 Standard Series (SP)	6 Standard Series (SP)
Gauge Length	1.5″, Options available	2.5″, Options available	2″, Options available
Junk Slot Area	15 in2	14 in2	12 in2
Bit Connection	4-1/2″ API REG	4-1/2″ API REG	4-1/2″ API REG
Length	Make-Up: 11.8″ Overall: 16.1″	Make-Up: 10.9″ Overall: 15.1″	Make-Up: 11.8″ Overall: 16.1″
Fishing Neck	Diameter: 6.8″ Length: 5.4″	Diameter: 6.8″ Length: 4.9″	Diameter: 6.8″ Length: 5.4″
Recommended drilling parameters
Flow Rate	25~45 LPS	21~38 LPS	21~38 LPS
Rotary Speed	60~320 RPM	60~330 RPM	60~330 RPM
Weight-on-Bit	20~130 KN	20~110 KN	20~110 KN
Max. Weight-on-Bit	150 KN	130 KN	130 KN
Make-Up Torque	49.6~51.4KN.m	16.6~23.7KN.m	16.6~23.7KN.m

 
■ 12.25 inch PDC Drill Bit Parameter as follow

Model	12-1/4″ BWS915 (311.15 mm)	12-1/4″ BWS915 (311.15 mm)	12-1/4″ BWS6156J (311.15mm)
Blade Count	5 Sprial Blades	5 Straight Blades	6 Sprial Blades
Primary Cutter Size	Ф19 mm	Ф19 mm	Ф16 mm
Nozzles	7 Standard Series (SP)	7 Standard Series (SP)	6 Standard Series (SP)
Gauge Length	3″, Options available	3″, Options available	2.5″ Options available
Junk Slot Area	39 in2	39 in2	34 in2
Bit Connection	6-5/8″ API REG	6-5/8″ API REG	5.75-4-ACME-2G
Length	Make-Up: 13.3″ Overall: 18.3″	Make-Up: 13.5″ Overall: 18.5″	Make-Up: 8.66″ Overall: 11.45″
Fishing Neck	Diameter: 8″ Length: 5.2″	Diameter: 8″ Length: 5.2″	/
Recommended drilling parameters
Flow Rate	38~62 LPS	38~62 LPS	38~62 LPS
Rotary Speed	60~300 RPM	60~300 RPM	60~300 RPM
Weight-on-Bit	20~160 KN	20~160 KN	20~160 KN
Max. Weight-on-Bit	180 KN	180 KN	180 KN
Make-Up Torque	49.6~51.4KN.m	49.6~51.4KN.m	/

 
■ 17.5 inch PDC Drill Bit Parameter as follow

Model	17-1/2″ BWS916 (444.5 mm)	17-1/2″ BWS935RS (444.5 mm)
Blade Count	6 Sprial Blades	5 Straight Blades
Primary Cutter Size	Ф19 mm	Ф19 mm
Nozzles	9 Standard Series (SP)	8 Standard Series (SP)
Gauge Length	4″, Options available	3.5″, Options available
Junk Slot Area	96 in2	90 in2
Bit Connection	7-5/8″ API REG	7-5/8″ API REG
Length	Make-Up: 19.5″ Overall: 24.8″	Make-Up: 17.4″ Overall: 22.6″
Fishing Neck	Diameter: 9.8″ Length: 6.6″	Diameter: 9.8″ Length: 8.8″
Recommended drilling parameters
Flow Rate	38~62 LPS	38~62 LPS
Rotary Speed	60~300 RPM	60~300 RPM
Weight-on-Bit	20~160 KN	20~160 KN
Max. Weight-on-Bit	180 KN	180 KN
Make-Up Torque	49.6~51.4KN.m	49.6~51.4KN.m