Drill Bits

Part 13 Drill Bits

CPTDC can provide all kinds of drill bits including roller cone bits, diamond bits, mining bits and engineering bits, which have novel structures and suitable for various formations.

China has the largest R&D and manufacturing base of drill bits in Asia, developed the “simulation analysis system for rock bit performance” and the die exploitation system based on 3D software Pro/E, and established the CAD/CAPP/CAE/CAM integrated design platform.

Most of the Chinese manufacturers of bits are equipped with numerically-controlled and specialized equipment and possess advanced technology such as flexible manufacturing system (FMS) and heat treatment technology with nitrogen base controllable atmosphere. They have established mature quality assurance system which is API or ISO 9001 certified and their products are API monogrammed.

CPTDC has provided the China-made drill bits to Europe, USA, the Middle East, Southeast Asia and CIS.

1. Roller Cone Bits

Through 20 years´ independent R&D after the introduction of world class bit manufacture and design technologies in 1980s, China has developed its new and advanced series of roller cone bits, including the series of floating seal, floating bearing, MD high speed motor bits, dual water course, low nozzle and equally worn teeth. Our roller cone bits for oil well drilling have novel structures and are classified into 1000 types in 18 series, with the size ranging from 3-3/4 to 26 inches, which can be used for drilling various formations from soft to very hard and can meet different drilling requirement both in China and abroad.

The series of single cone bits are specifically developed to meet special drilling requirements (such as side tracking and old well deepening,). They have the following features:

● Using two-stage gages protection of the cone and bit body with active cutting gage protection compacts inserted on the bit body.

● Double (main and auxiliary) water course structure is used for the hydraulic system with a jet nozzle and a divergent nozzle and optimized nozzle combination.

● K-Brand Roller Cone Bit Types and Features

Item No.

Main structure features of bearing and sealing

Standard series

Special series

T (special gage protection)

D (equally worn teeth)

S (Full bottom hole coverage)

Rubber O ring sealed journal bearing

HAT

HAD

HAS

Metal face sealed journal bearing

HJT

HJD

HJS

Floating sealed journal bearing

HFT

HFD

HFS

Rubber O ring sealed floating bearing

FAT

FAD

FAS

Rubber O ring sealed roller bearing

GAT

GAD

GAS

Metal face sealed roller bearing

GJT

GJD

GJS

Floating sealed roller bearing

GFT

GFD

GFS

Floating bearing metal face sealed

Non-sealed roller bearing

KingMight E series roller cone bit

MotorDigger (MD high speed motor bit series )

Single cone bit with rubber O ring sealed journal bearing

Single cone bit with rubber O ring sealed journal bearing （improved）

● Rock Bit Selection Guide

Type	For- ma- tion	Series	Grade	1					2				4					5
Type	For- ma- tion	Series	Grade	Standard roller bearing					Roller bearing air cooled				Sealed roller bearing					Sealed roller bearing gauge protected
Steel teeth bits	Soft	1		China	Hughes	Reed	Security	Smith	China	Hughes	Reed	Smith	China	Hughes	Reed	Security	Smith	China	Hughes	Reed	Security	Smith
			1	W111	R1	Y11	S3SJ	DSJ					S114, GA114	GTX-1	S11	S33S	SDS	S115, SG115, GA115, GJ115	GTX-G1, ATX-G1	MS11G	S33G	MSDSH
			2	S121 W121		Y12	S3J	DTJ					S124, GA124			S33S		S125, SG125, GAT125			S33SG, SS33G
			3	S131 W131		Y13	S4J S4TJ	DGJ					S134, GA134			S44		S135, SG135, GA135, GJ135	GTX-G3, ATX-G3, MAX-GT3, MAX-G3	S13G, MS13G	S44G, SS44G	SDGH, MSDGH, MSDGHOD
			4
	Medium	2	1	S211 W211			M4NJ	V2J					S214, GA214			M44N		S215, SG215, GA215		S21G, MS21G	M44NG, MM44NG	SVH, MSVH
			2	W221	DR5		M4NJ											S225
			3
			4	S241									S244
	Hard	3	1				H7									H77				S31G
			2	S321 W321	R7		H7J						S324								H77SG
			3
			4
Tungsten carbide bits	Soft	4	1															SG415, GA415, GAT415, GJ415, GJT415	ATX-05, GTX-00, GTX03, MAXGT00, MAX05, MAXGT-03	MS41A	SS80	MOIS MSDSHOD, M02S M02SOD
			2																		SS81	M05S
			3															SG435, GA435, GAT435, GJ435, GJT435	ATX-11H, GTX-09, MAX-11H, MAX-11HG, MAXGT-09	S53A, MS43A	SS82	M01S MISOD
			4															SG445	MAX-11CG, MAX-18	S44A MS44A		15JS, M15SD M15S, M15SD
	Soft to medium	5	1															SG515, GA515, GAT515, GJ515, GJT515	ATX-22, MAX-22, MAX-22G	S51A	SS84	A1SL, MA12L 2JS, M2S, M2SD
			2															SG525		S52A		M27S, M27SD
			3															SG535, GA535, GJ535		S53A	S86, SS86	3JS, M3SD M3SOD
			4															SG545	ATX-33C		SS88C
	Medium	6	1							G44		4GA						GA616, GJ-615			M84	4JS
			2								Y62 JA	47JA 5GA							ATX-44C, MAX-44C	S62A	M89T, MM88	5JS, 47JS
			3							G55	Y63 JA								MAX-55
			4
	Hard	7	1
			2
			3							G77	Y73 JA	71A
			4
	Extra hard	8	1
			2
			3							G99	Y83 JA	9JA									H100 HH100
			4

Type	For- ma- tion	series	Grade	6					7
Type	For- ma- tion	series	Grade	Sealed friction bearing					Sealed friction bearing gauge protected
Steel teeth bits	soft			China	Hughes	Reed	Security	Smith	China	Hughes	Reed	Security	Smith
		1	1	S116HA116					S117, HA117, HAT117
			2	S126, HA126		2 EHP12	S33F	FDT	S127, HAT127			SS33TGF, S33GF
			3	S136, HA136			S44F	FDG	S137, HA137, HAT137, HJ137, HJT137	ATM-GT3	HP13G, MHP13G	S44GF	FDSH, MFDGH
			4
	Medium	2	1	S216, HA216	ATJv4		M44NF	FV	S217, HA217, HAT217	ATJ-G4	HP21G	M44NGF	FVH
			2
			3
			4	S246					S247
	Hard	3	1	HA316			H77F				HP31G
			2
			3
			4
Tungsten carbide bits	Soft	4	1						S417, SJ417, GA417, HA417, HJ417, HJT417	ATM-05, ATMGT-03, ATJ-05, GT-00, GT-03	EHP41A EHP41H	S80F, EAR03	MF02
			2						HA427Y, HJ427Y	ATJ-05C, GT-09C, ATMGT-09C		S81F, ERA07	F05, MF05, F07
			3						S437, SJ437, HA437, HAT437, HD437, HDA437, HJ437, HJT437	ATJ-11, ATJ11H, TG-09, STR-09, ATMGT-09, ATM-11H, ATM-11HG	EP43A, EHP43A, EHP43H, HP44A	S82F, 82CF, SS82D, ERA13, ERA13C, ERA14C	F1, MF1, F10D, MF10D
			4						S447, SJ447, HA447Y, HJ447Y	ATJ-11C,ATJ-18,GT-18, GT18C,ATMGT-18,ATM-11CG		S83F,SS83F, ERA17	F15,MF15,F15D, F150D,MF15D, MA15,MF150D
	Soft to med ium	5	1						S517, SJ517, SF517, HA517	ATJ-22, ATJ22S, TG-20, GT-20S, ATJ-22G, ATMGT-20, ATM-22, ATM-22G	GP51XM, HP51, HP51A, HP51X, GP51H, EHP51A, EHP51H	S84F, SS84F, S84CF, ERA22, ERA22C	F2, F2H, F25, F15H, F25A, MF2, F2D, MF2D, F17
			2						S527, SJ527, HAT527, HJ527, HJT527	ATJ-22C, ATJ-28, ATJ-28C, GT-20C, ATJ-28C, GT-28, ATM-33G	EHP53, EHP53A, HP53AM, HP53, HP53A	S86F, 86CF, SS86F, ERA33, ERA33C	MF3, F3, F3H, FED, MF3H, MFED,MF30D
			3						S537, SJ537, HA537, HAT537, HJ537, HJT537	ATJ-33, ATJ-33S, ATJ-33A, ATJ-33H, ATJ-35, ATM-33, ATM-33G	EHP53, EHP53A, HP53AM, HP53, HP53A	S85F, S85CF, ERA25, ERA25C	F271, F27, MF27D, MF27
			4						S547, SJ547, HA547Y, HJ547Y	ATJ-33C, ATJ-35C, ATM-33C, ATM35CG	HP54	S88F, S88CF, S88FA, S88CFH	F35, F35A, F37, F37D, MF37, F37A, MF37D
	Medium	6	1						S617, SJ617, HA617		HP61, EHP61, HP61A, EHP61A	MAF, M84F	F4, F4A, F45A, F47, F47A, F4H, F45D
			2						S627, SJ627, HA627		HP62, EHP62, HP62A, EHP62A	M89TE, M84CF, M85F, M86CF	F50D, F46H, F5, MF5, MF5D
			3						S637, HA637		HP63, EHP63	M89F	F57, F57A, F570D F57D, F57DD
			4										F670D
	Hard	7	1									H83F
			2
			3						HA737		HP73, EHP73	H87F	MF7.F7, F70D
			4
	Extra hard	8	1									H89F	F80D, F8DD
			2
			3						HA837		HP83, EHP83	H100F	F9
			4

2. Diamond Bits

CPTDC can provide different kinds of diamond bits (3 1/2"- 17 1/2") for different purposes, ranging from PDC, TSP and natural diamond drilling bits, core bits and bits for special applications. Meanwhile, CPTDC can also provide other types of drilling bits with specific design according to the requirements of customers.

a. Bit size code: OD size, ID size

b. Cutter type code: F, K, S, R, J, D

c. Bit type code: M, S, X, B, Q

d. Cutter density code: PDC and TSP, indicate with number 1-4 and 6-8, respectively from sparse to dense

e. Bit crown shape code: NO.1 fishtail bit, NO.2 shallow cone, NO.3 short parabola, NO.4 parabola.

f. Design and classification code: 1-9 .

g. Additional specifications: generally include the material grand and other additional explanations

For example: 84FM235A

84-8 1/2"OD

FM-FM series

2-the second formation

35-code of design classification

A-Class A cutting elements

● Diamond Drilling Bit Series

Series		Bit type	OD		API pin conn.	Construction styles
Series		Bit type	inch	mm	API pin conn.	Construction styles
P D C	KM series king cutter PDC drilling bit	12KM226	12-1/4	311.1	6-5/8 REG	1.King compact cutter 2.Parabolic crown profile 3.Super wide and deep junk slot 4.Matrix-bodied,wing type cutting blade arrangement
		12KM203	12-1/4	311.1	6-5/8 REG
		84KM223	8-1/2	215.9	4-1/2 REG
		12KM206	12-1/4	311.1	6-5/8 REG	1.Double king and stand cutters 2.Short parabolic crown profile 3.Deep and wide junk slot 4.Matrix-bodied,wing type cutting blade arrangement 1.Standard compact cutter 2.Parabolic crown profile 3.Super wide and deep junk slot 4.Matrix-bodied,wing type cutting blade arrangement
	FM series standard cutter PDC drilling bit	12FM226				1.Short compact cutter 2.Short parabolic crown profile 3.Deep and wide junk slot 4.Matrix-bodied,wing type cutting blade arrangement
		12KM236
		12FM281
		12FM282
		84FM202	8-1/2	215.9	4-1/2 REG
		94FM281	9-1/2	241.3	6-5/8 REG
		86FM281	8 3/4	222.3	4-1/2 REG
		84FM281	8-1/2	215.9	4-1/2 REG
		84FM284
		84FM285
		84FM286
		77FM284	C	200	4-1/2 REG
		77FM202	C	200	4-1/2 REG
		70FM202	7	177.8
		45FM202	4-5/8	117.5	2-3/8 REG
		118FM202		118
		12FM235	12-1/4	311.1	6-5/8 REG
		94FM235	9-1/2	241.3	6-5/8 REG
		84FM235	8-1/2	215.9	4-1/2 REG
		12FM212	12-1/4	311.1	6-5/8 REG	1.Standard compact cutter 2.Shallow cone crown profile 3.Spiral scattered cutters arrangement 4.Matrix-bodied type
		84FM212	8-1/2	215.9	4-1/2 REG
		84FM282	8-1/2	215.9
		77FM282	7-7/8	200
		60FM222	6	152.4	3 1/2 REG
P D C		84FM233	8-1/2	215.9	4-1/2 REG	1.Stand and wedge cutters 2.Shallow cone crown profile 3.Radioactive cutters arrangements 4.Matritx-bodied type
	FX Series Standard Cutter PDC Directional Drilling Bit	12FX212	12-1/4	311.1	6-5/8 REG	1.Standard compact cutters 2.Shallow cone crown profile 3.Radioactive cutters arrangements 4.Short gauge length, Matrix-bodied type
		84FX203	8-1/2	215.9	4-1/2 REG
		84FX282	8-1/2	215.9	4-1/2 REG
		60FX203	6	152.4	3-1/2 REG
		45FX202	4-5/8	117.5	2-3/8 REG
JM Series Triangular Polycrystalline Drilling Bit		84JM448	8-1/2	215.9	4-1/2 REG	1.Triangular polycrystalline cutters 2.Long cone crown profile 3.Matrix-bodied type
		60JM403	6	152.4	3-1/2 REG
		45JM403	4-5/8	117.5	2-7/8 REG
		41JM403	4-1/8	104.8	2-3/8 REG
RM Series Cylindrical Polycrystalline Drilling Bit		60RM303	6	152.4	3-1/2 REG	1.Cylindrical polycrystalline cutters 2.Long cone crown profile 3.Matrix-bodied type
		57RM355	5-7/8	149.2	3-1/2 REG
		45RM303	4-5/8	117.5	2-7/8 REG
		41RM303	4-1/8	104.8	2-3/8 REG

● Bi-Center Bits

Series

Bit type

API pin conn.

Pilot OD

Drill OD

inch

FB Series Standard PDC BI-Center Bit

45FB3551

4-5/8

117.6

2-7/8 REG

130

JB Series Triangular Polycrystalline Bi-Center Bit

60FB4667

152.4

3-1/2 REG

120.65

174.6

45JB3551

4-5/8

117.6

2-7/8 REG

130

60JB4667

152.4

3-1/2 REG

120.65

174.6

● Bit Selection Guide

IADC code

Formation

Rock type

Dagang rock bit

King cutter bits

PDC bit

TSP bit

Core bit

Special bit

111-126
417

Soft formation with low layers and low compressive strength

Gumbo clay marl

ATJ-1/J2
ATX-1
ATJ-05
ATM-05

KM203
KM226

111-126
417-447

Soft formation with low compressive strength and high drillability

Marl salt anhydrite shale

ATJ-1/J2
ATJ-05
ATM-05
ATJ-11
ATM-11

KM203
KM223
KM226

FM203
FM226
FM212
FM202
FM284

FQ11
FQ12

FX212
FX282

136-216
517-537

Soft to medium formation with low compressive strength interbedded with hard layers

Sand shale chalk

J3-J4
ATJ-22
ATM-22
ATJ-33
ATM-33

KM226
KM206

FM236
FM235
FM281
FM282
FM285
FM286

FQ11
FQ12
FQ203

FX212
FX282

537-627

Medium to hard formation with high compressive strength & small abrasive layers

Shale mudstone limestone sandstone

ATJ-33
ATM-33
ATJ-44
ATJ-44C
ATJ-55R

FM282
FM233

RM303
JM403
JM448

RQ302
RQ303
RQ306
JQ402
JQ403
JQ406

637-737

Hard and dense formation with very high compressive strength but no abrasive layers

Limestone dolomite anhydrite

ATJ-55
ATJ-77

RM303
JM403
JM413
JM448

RQ301
RQ322
RQ316
JQ402
JQ403
JQ406
JQ407

837

Extremely hard and abrasive formation

Quartzite volcanic

ATJ-99

DQ551
DG502
DG506

CHUANSHI CHRIDA -PDC Bits Selection Guide

Bit size

Bit type

IADC

Blades

Cutter size

Recommended formation

17-1/2”

GS605

S223

19mm

Ultra soft with stick layers and low compressive strength

sand, mud, clay, marl

12-1/4”

GS605

S222

19mm

12-1/4”

G604

M223

19mm

12-1/4”

G605K

M223

19mm

9-7/8”

G605

M223

19mm

8-1/2”

G605K

M223

19mm

8-1/2”

GS605

S223

19mm

12-1/4”

BD606KG

M323

19mm

Soft with low compressive strength and high drillability

marl, shale, anhydrite, sand, clay

12-1/4”

G606

M323

19mm

9-7/8”

G606

M323

19mm

8-1/2”

G606

M323

19mm

12-1/4”

BD505XL

M323

16mm

Soft to medium compressive strength and high drillability

shale, sand, chalk, limestone

soft to medium with low compressive\ strength and anisotropic layers

shale, sand, chalk, limestone

12-1/4”

BD506XL

M323

16mm

9-7/8”

G506

M323

16mm

8-1/2”

G505XL

M223

16mm

8-1/2”

BD506XL

M323

16mm

8-1/2”

GS506

S323

16mm

6”

G505

M222

16mm

12-1/4”

BD406

M333

13mm

Medium to hard with medium compressive strength and small abrasive layers

shale, sandstone, limestone

Hard dense with high compressive and abrasive: shale, sandstone, limestone, siltstone

12-1/4”

BD407

M433

13mm

12-1/4”

BD408XL

M433

13mm

9-7/8”

BD406XL

M333

13mm

8-1/2”

BD406XL

M333

13mm

8-1/2”

BD407XL

M433

13mm

8-1/2”

BD408XL

M433

13mm

6”

STR406

M333

13mm

6”

STR407

M433

13mm

6”

STR405

M332

13mm

Note: BD series: black Ice cutter series PDC bit (matrix); G series: golden cutter series PDC bit (matrix); GS series: steel body series PDC bit

3. Mining Bits

K series bits are non-sealed roller bearing bits that are cooled and cleaned by air. The main structure features include:

Utilization of carbide compacts with high strength, high toughness for increasing impact strength and wear resistance for reducing compact breakage

Optimized number of compact rows and total number of cutters

Cutter exposure and compact shape to maximize the cutting ability and the cutting speed of the bit

Adequate heat-treated bearing surface to increase the bearing capacity and service life

The thrust bearing to further increase the overall bearing capacity, improve the air circulation condition inside the bearing cavity and reduce the temperature in the cavity

The air-water separator can prevent water or cuttings from entering the bearing cavity through waterway or nozzles while supplying cooling air to the bearing.

Statically placed nozzles are advantageous to thoroughly clean the bottom hole, and the nozzle diameter can be selected according to specific air pressure and flow rate.

Optimum designed head shape provides maximum space to remove the cuttings out of the bottom hole and increase the penetration rate

Head O.D. is well protected by additional carbide compacts and special hard-facing

4. Two-Stage Roller Cone Bits for Water Well

The advanced design and manufacture technologies for tri-cone bits for oil well drilling are suitable for large diameter water well and geothermal well drilling operations. The main features include:

Two-stage cone structures can achieve higher ROP under lower WOB.

Complete set of cones placement allows thorough break down of the rocks at the bottom hole.

Reaming bit connection parts are machined to ensure diameter, pegleg and concentricity requirements of the bit.

With the advanced hardfacing technology, the wear resistance of the teeth is improved. By using the compacts of high toughness and excellent wear resistance, the impact strength of the compacts on insert bit is increased and the breakage rate of the compacts is reduced.

A pad in front of each cone of the reaming bit can prevent the loss of cone.

5. Hobbing Bits for Rock Breaking

The rock breaking hobbers can be assembled into hobbing bits of various sizes, which are suitable for large diameter engineering drilling operation.

Optimized hobber placement allows that the hobbers achieve the higher penetration rate under lower WOB. Advanced steel cutter hardfacing technology increases the wear resistance of the cutters.

Insert hobber utilizes compacts with high toughness and excellent wear resistance and can increases the impact capacity.

The application of reliable sealing structure and new type of grease with low friction make the bits can sustain high temperature. Once damaged, the hobber can be replaced on site and the maintenance is very easy.

6. Drilling Hammers and Bits

This drill bit is designed specially for mines, water conservancy projects, building and road making projects. Downhole drilling hammers are widely used in mines, hydropower station, railway, roadway, construction of water-well and stone work. Model JZ high air pressure downhole drilling hammers and bits are of large penetration and efficiency. Hammer and bits can drill holes of 105-864mm in diameter under various conditions.