2013年3月31日星期日

PDC Drill Bits



The main structure features:
n       Tungsten carbidematrix PDC possesses high wear resistance and impact resistance.
n       Parabolic crown profile and maximizes junk slot area can clean bit better, and prolong the bit working life.
n       Applying hydraulics balance design, 5 renewal nozzles and reasonable nozzles locating angle can gain ideal fluid field in well bottom, fully clean and cool cutter, and prolong the cutter working life.
n       Non-symmetry blade arrangement enhances drilling well balance.
n       Optimization for cutter shape, slant angle, cutter numbers prolong the cutter working life in combination with high quality PDC cutter, and improve ROP and drilling efficiency.
n       It can be used on rotary or down hole motor.
n       High HIS is recommended.


The Main Type Of PDC Bits

Type
Blade
Cutter
Bit Size
Std. API pin Shank Size(in)
Approximate Weight of Bits (Kg)
Inch
mm
6 3/4 M
5
16
6 3/4
171.5
3 1/2REG
50
7 7/8 M
4
16
7 7/8
200
4 1/2REG
65
8 3/8 M
6
16
8 3/8
212.7
4 1/2REG
70
8 1/2 M
4
19
8 1/2
215.9
4 1/2REG
70
8 1/2 M
5
16
8 1/2
215.9
4 1/2REG
75
8 1/2 M
6
13
8 1/2
215.9
4 1/2REG
80
9 1/2 M
7
16
9 1/2
241.3
6 5/8REG
100
9 1/2 M
5
19
9 1/2
241.3
6 5/8REG
100
11 5/8 S
4
19
11 5/8
295.3
6 5/8REG
125
12 1/4 M
5
16
12 1/4
311.2
6 5/8REG
130
12 1/4 M
6
16
12 1/4
311.2
6 5/8REG
140
12 1/4 S
8
19
12 1/4
311.2
6 5/8REG
130
17 1/2 M
7
16
17 1/2
444.5
7 5/8 REG
300
17 1/2 S
7
16
17 1/2
444.5
7 5/8 REG
300
Note: The type which is not listed in the above table can be customized.
Cutter Availabel Sizes:





Recommended Diamond & PDC

Make-up Torque


  
T.F.A Values of Common Round Nozzles Size 

Recommended Parameters Diamond, PDC Bit



NOMENCLATURE OF PDC BITS



Example:









TH(S) Series PDC Bits Selection Guide
TH(S) Series PDC Bits Selection Guide
No.
Formation
IADC Code
Lithology
Example
1
Very  soft
M(S)122    M(S)133
Caly     Mudstone   Marlite
TH(S)1942D,TH(S)1343
2
Soft
M(S)221    M(S)222    M(S)223    M(S)232    M(S)233
Marlite    Saline Rock  Shale
TH(S)1354,TH(S)1354LF,TH(S)1364L, TH(S)1643LF,TH(S)1643SLF,TH(S)1644, TH(S)1654,TH(S)1654LF,TH(S)1665LF, TH(S)1943,TH(S)1943LF,TH(S)1943N, TH(S)1943SLF,TH(S)1944L,TH(S)1953, TH(S)1953LF,TH(S)1954,TH(S)1954D, TH(S)1954LF,TH(S)1955LF
3
Medium Soft
M(S)321  M(S)323  M(S)331  M(S)332  M(S)333
Shale    Sandstone   Chalk
TH(S)1354SLF,TH(S)1355LF,TH(S)1365, TH(S)1365D,TH(S)1365L,TH(S)1365LF, TH(S)1365SLF,TH(S)1654S,TH(S)1664, TH(S)1664LF, TH(S)1665, TH(S)1665D, TH(S)1665S,TH(S)1665S,TH(S)1955LF,  TH(S)1964,TH(S)1965,TH(S)1965A, TH(S)1965D
4
Medium
M(S)433
Sandstone   Limestone  Shale
TH(S)1376
 Note: The type which is not listed in the above table can be customized.

TB/TQ Series PDC Bits Selection Guide
No.
Formation
IADC Code
Lithology
Example
1
Very soft
M133   
Caly     Mudstone   Marlite
TB1365
2
Medium Soft
M565 
Sandstone   Limestone   Shale
TQ1363, TQ1384
Note: The type which is not listed in the above table can be customized.

Example:



Specification
Recommended Opeeration Parameters
Size
17 1/2”
Blade
6
Cutter Standard
Φ16mm Φ13mm
Weight on Bit (KN)
30~200
Nozzle No. & Type
9 SP
Rotation Speed(r/min)
60~260
Gage Length
3"
Hydraulic Flow Rate (l/s)
45~80
API Connection
7-5/8" API REG
HIS
2.0~8.0
Applying Formation
Middle Soft – Middle Hard


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