Millennium Oil Sealed Drilling Motors
The Wenzel Downhole Tools Millennium Oil Sealed Drilling Motor is designed
with patented technology for use with the latest developments in high torque high speed power sections. Delivering superior performance and reliability, it
provides users with an efficient tool for their drilling applications.
The Millennium Drilling Motors continue to offer the highest level of quality to
customers through superior designs, materials, and manufacturing processes.
Features and Benefits
High allowable WOB (weight on bit) and load capacities.
Equipped with 0 - 3° Adjustable Bend Assembly.
Option for shorter bit-to-bend Fixed Bend Assembly.
Features the Maxi-Torque Driveline for use with high torque power
sections.
Pin down mandrel & straight housing options available for achieving high
downhole RPM with Rotary Steerable Systems (RSS).
Inhouse manufactured components adhere to Wenzel’s high standard of
premium materials and quality production.
Patented designs.
MOTOR CHARACTERISTS
4 ¾” (121 mm) MILLENNIUM OIL LUBE DRILLING MOTOR
MOTOR SPECIFICATIONS
Bit Box to Stabilizer
A
Bit Box to Bend - ABH
B1
Bit Box to Bend - FBH
B2
Bottom End Assembly Length
C
Power Section Length
D
Top End Assembly Length
E
Total Length
F
Stabilizer Upset Diameter
G
Crown Pad Radius
H
Recommended Hole Size
Standard Bit Box Connection
Top Connection
Maximum WOB
Operating
Capacity
Maximum Bit Overpull
Maximum WOB to Re-run
Static
Maximum Bit Overpull to Re-run
Capacity
Absolute Body Overpull
Adjustable Make-Up Torque
Stabilizer Torque
Total Weight
IMPERIAL
METRIC
25 in
0.64 m
61 in
1.55 m
51 in
1.30 m
85 in
2.16 m
See Power Section Spec Sheet
45 in
1.14 m
C+D+E
5.50 in
140 mm
2.82 in
72 mm
5 7/8 – 7 7/8 in
149 – 200 mm
3 1/2 Reg
1
3 /2 IF, 3 1/2 Reg
54,000 (33,000 *) lb
24,000 (14,700 *) daN
31,000 lb
13,800 daN
222,000 (133,000 *) lb
99,000 (59,000 *) daN
138,000 lb
61,400 daN
436,000 (481,000 **) lb
194,000(214,000**) daN
1,500 ft.lb
20,300 Nm
6,000 ft.lb
8,100 Nm
500 lb + PS Weight Ϯ
272 + PS Weight Ϯ
* Option for Single on Bottom Bearing. ** Higher Absolute Body Overpull for 5” Motor
Ϯ See power section Spec Sheets for Motor Performance Specifications, Stator Length & Power Section Weight (PS Weight)
Bend
Setting
Deg.
0.39
0.78
1.15
1.50
1.83
2.12
2.38
2.60
2.77
2.89
3.00
6 in
152 mm
1.0
4.0
6.5
9.5
11.5
14.0
15.5
17.5
18.5
19.5
20.5
Slick
Hole Size
6.25 in
159 mm
0.5
3.0
6.0
8.5
11.0
13.0
15.0
16.5
18.0
18.5
19.5
ESTIMATED BUILD RATES Deg/100 ft (30 m)
One Stabilizer
Hole Size
6.75 in
6 in
6.25 in
6.75 in
171 mm 152 mm 159 mm 171 mm
2.5
2.5
3.0
1.5
5.0
5.0
5.5
4.5
7.0
7.0
7.5
7.0
9.0
9.0
9.5
9.5
11.0
11.0
11.5
11.5
12.5
13.0
13.0
13.5
14.0
14.5
14.5
15.0
15.5
15.5
16.0
16.5
16.5
16.5
17.0
17.0
17.0
17.0
17.5
18.0
17.5
18.0
18.0
Two Stabilizers
Hole Size
6 in
6.25 in
6.75 in
152 mm 159 mm 171 mm
2.0
2.0
2.0
4.0
4.0
4.0
6.0
6.0
6.0
8.0
8.0
8.0
9.5
9.5
9.5
11.0
11.0
11.0
12.5
12.5
12.5
14.0
14.0
14.0
14.5
14.5
14.5
15.5
15.5
15.5
16.0
16.0
16.0
Note:  Build Rate tables provide estimates to be used as a guideline. WOB, formation, BHA and bit type will all have an effect on actual
build rates produced
 Build rates are based on Adjustable Bend Housing (ABH)
 Stabilization points are 1/8” under gauge
AdjustaЫe Bent Housing
-------Wenzel Easy-Set 111 AdjustaЫe Bent Housings
Series 22 (0 ° to 3 ° )
Setting Procedure
G)
т--
TONG
HERE
т--
TONG
HERE
,ос,
HOUSING
L__
,ос,
HOUSING
TONG
LOCK
1-IOUSING
HERE
L__
•
©
ADJUSTABLE
BENTSUB
------т
TONG
HERE
_____i
Break connection
and unscrew using
а chain tong to
expose teeth
ADJUSTABLE
BENTSUB
Turn left ог right to desired
bend setting
(Maximum rotation (lotal)
is limited to 1/2 turn Ьу
internal stop. The internal
stop will prevent rotating
past 0 ° ot 3 ° setting.)
ADJUSTABLE �
G
HERE
_____i
Turn the Lock Housing,
using а chain tong, to
lower the Crown to the
AdjustaЫe Bent Sub.
Maintain alignment of
desired setting marks
while turning. Torque to
recommended value.
Where the numЬers аге aligned indicates the inside of
bend / high side mark of the tool
RECOMMENDED МАКЕ UP TORQUES
TOOL SIZE (lnches)
TORQUE (fl.lbs)
TORQUE (Nm)
3 1/2
5500
7500
4 3/4 - 5 1/8
15 ООО
20 300
6 1/2
35 ООО
47 450
7 3/4
40 ООО
54 200
8
45 ООО
61 ООО
9 1/2
60 ООО
81 300
Wenzel Downhole Tools
4 3/4"* 121 mm 7/8-3.8 Stg. HR
Performonce Speci/icotioш
lmperiol
Flow Ran _ge
Speed RanJ?:e
Speed Ratio
Recommended Мах
Differential Pressure
Torque Ratio
Torque at Recommended
Мах Differential
Stall Torque
Metric
150- 300 _gpm
76- 152rpm
0.51rev/_gal
568- l,136lpm
76- 152rpm
0.1 35rev/1
950psi
6,550 kPa
4.23ft lbs/ psi
0.831Nm/ kPa
4,018ft lbs
5,448Nm
8,036ft lbs
10,896Nm
*Supplied with 5"(127mm) O.D. power section in some regions.
4.75/5.00(121/127mm) 7-8 3.8 Stg. HR
160 ----------------...---300 pm (1135 lpm)
4000
(5423)
250 gpm
(945 lpm)
120
о
ш
80
200gpm
(7601pm)
150 gpm
(5701pm)
ш
..
40 ------------------- 1000
FULL (1355)
LOAD
.
1
1
1
200
(1380)
400
(2760)
600
(4140)
800
(5516)
1000
(6890)
DIFFERENTIAL PRESSURE [psi (kPa)]
MS Motor Speci/icotioш
Bit Вох to Bend -АВН
Bit Вох to Bend - FBH
Hole Size
Standard Bit Вох T hread
MaxWOB
Мах Pull while back ReaminJ?:
Absolute Overpull
ToolWeiJ?:ht
Len_gth
AdjustaЫe Torque (S 22)
AdjustaЬle Torque (S 14)
Stabllizer Torque
lmperiol
5.13ft
4.22ft
5 7/s" - 7 7/s"
3 1/2 ReJ?:
53,300lbs
52,400lbs
515,000lbs
1210lbs
27.13 ft
15,000ft lbs
10,000ft lbs Left
6,000ft lbs
Metric
1.56m
1.29m
149- 200mm
3 ½ ReJ?:
23,700daN
23,300daN
229,100daN
550 kJ?:
8.27m
20,300Nm
13,500Nm Left
8,000Nm
Wenzel Downhole Tools