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Downhole Motor
Downhole motor is a positive-displacement motor, widely used in drilling, kick-off, azimuth control, coring, reaming, and work over for directional wells, horizontal wells, of oilfields and coal mines.
Jereh Drilltech provides various downhole motors through sizes 3-1/2"~17-1/2".
|
Motor Type |
JDDM- |
JDDM- |
JDDM- |
JDDM- |
JDDM- |
JDDM- |
JDDM- |
JDDM- |
|
|
Hole size( In) |
3-1/8~ |
4-1/ |
4-5/ |
5-7/8~ |
5-7/8~ |
8-3/8~ |
8-3/8~ |
8-3/8~ |
|
|
Flow rate range (L/S) |
2~4 |
3~8 |
8~13 |
9~14 |
9~16 |
20~28 |
20~28 |
20~28 |
|
|
Rotation Speed (Rpm) |
125~ |
95~ |
80~ |
95~ |
95~ |
90~ |
90~ |
90~ |
|
|
Pressure fall of motor (Mpa) |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
2.4 |
3.2 |
4.0 |
|
|
Operating Torque (N.m) |
320 |
560 |
1,200 |
1,350 |
1,700 |
3,300 |
4,500 |
5,600 |
|
|
Stall torque (N.m) |
560 |
980 |
2,100 |
2,360 |
2,950 |
5,775 |
7,875 |
9,800 |
|
|
Output power (Kw) |
4.2~ |
5.6~ |
10~ |
13.4~ |
16.9~ |
31.1~ |
42.4~ |
52.8~ |
|
|
Bit diff. pressure (Mpa) |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
|
|
Recommended W.O.B. T |
1.5 |
2 |
2.5 |
3 |
3 |
6 |
8 |
10 |
|
|
Max. W.O.B. T |
2 |
3 |
5 |
5 |
5 |
16 |
16 |
16 |
|
|
Connection |
Upper box |
2-3/8TBG |
2-3/8 |
2-7/8 |
3-1/2 |
3-1/2 |
4-1/2 |
4-1/2 |
4-1/2 |
|
lower box |
2-3/8 |
2-3/8 |
2-7/8 |
3-1/2 |
3-1/2 |
4-1/2 |
4-1/2 |
4-1/2 |
|
|
Vertical |
3,670 |
2,700 |
4,035 |
3,385 |
4,555 |
5,860 |
6,770 |
7,665 |
|
|
Tool length |
Single-bent |
|
|
4,035 |
3,900 |
4,555 |
5,860 |
6,770 |
7,665 |
|
Double-bent |
|
|
4,185 |
4,060 |
4,715 |
6,110 |
7,020 |
7,915 |
|
|
Vertical |
85 |
83 |
140 |
200 |
265 |
668 |
730 |
810 |
|
|
Tool WT(kg) |
Single-bent |
|
|
145 |
248 |
270 |
688 |
750 |
830 |
|
Double-bent |
|
|
150 |
258 |
280 |
714 |
776 |
856 |
|
|
Motor Type |
JDDM |
JDDM |
JDDM |
JDDM |
JDDM |
JDDM |
JDDM |
JDDM |
||
|
Hole size (In) |
83/8 |
8-3/8~ |
9-7/8~ |
9-7/8~ |
9-7/8~ |
9-7/8~ |
12-1/4~ |
12-1/4~ |
||
|
Flow rate range (L/S) |
25~35 |
25~35 |
30~ |
30~ |
30~ |
30~ |
30~50 |
50~75 |
||
|
Rotation Speed (Rpm) |
90 |
90 |
90 |
90 |
90 |
90 |
100 |
85 |
||
|
Pressure fall of motor (Mpa) |
3.2 |
4.0 |
4.0 |
4.8 |
3.2 |
4.0 |
3.2 |
3.2 |
||
|
Operating Torque (N.m) |
5,300 |
6,600 |
8,800 |
10,000 |
8,500 |
10,000 |
11,000 |
17,000 |
||
|
Stall torque (N.m) |
9,275 |
11,550 |
12,180 |
14,000 |
11,900 |
14,000 |
19,250 |
24,650 |
||
|
Output power (Kw) |
49.9~ |
62.2~ |
83 |
94 |
80 |
94 |
115.2~ |
151 |
||
|
Bit diff. pressure (Mpa) |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
1.4~7 |
||
|
Recommended W.O.B. T |
8 |
10 |
17 |
18 |
16 |
17 |
17 |
22 |
||
|
Max. W.O.B. T |
16 |
16 |
25 |
26 |
24 |
25 |
28 |
33 |
||
|
Connection |
Upper box |
4-1/2 |
4-1/2 |
5-1/2 |
5-1/2 |
5-1/2 |
5-1/2 |
5-1/2 |
6-5/8 |
|
|
lower box |
4-1/2 |
4-1/2 |
6-5/8 |
6-5/8 |
6-5/8 |
6-5/8 |
6-5/8 |
6(7)-5/8 |
||
|
Vertical |
|
7,630 |
9,050 |
10,200 |
7,900 |
9,050 |
8,480 |
9,510 |
||
|
Tool length |
Single-bent |
|
7,630 |
9,050 |
10,200 |
7,900 |
9,050 |
8,480 |
9,510 |
|
|
Double-bend |
6,980 |
7,880 |
9,350 |
10,500 |
8,200 |
9,350 |
8,780 |
9,810 |
||
|
Vertical |
|
913 |
1,395 |
1,646 |
1,262 |
1,512 |
1,440 |
1,830 |
||
|
Tool weight |
Single-bent |
830 |
934 |
433 |
1,689 |
1,300 |
1,550 |
1,473 |
1,930 |
|
|
Double-bend |
|
962 |
1,478 |
|
1,345 |
1,595 |
1,528 |
2,005 |
||