downhole motor basic infomation

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downhole motor details

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The downhole motor is a kind of drilling tools developed for converting hydraulic energy into mechanical energy through power section which is made up of a stator and a rotor. The motors are usually divided into two kinds, single lobe (1/2) and multi lobes (N/N+1) motors, according to the quantities of the lobes of the stator and rotor. Generally speaking, for motors of the same length of rotor/stator section, the more the lobes are, the higher the output torque is, vice versa. The motors are usually used together with cone bits, diamond bits and so on in drilling operation, such as directional and vertical drilling, horizontal drilling, correcting deviation, coring, reaming, sidetracking, etc.
Downhole motors may also be equipped with extended power section. Comparing with common motors, they are greatly increased in output torque and power, which help to increase penetration rate markedly.
Downhole motor adjustable bent housing is optional. It can easily adjust the bent angle from 0 to 3 degrees (between 0 to 3 degrees) in the rig floor without shim. The angle is directly pointed to the high side of tool face.
Downhole motor has independent intellectual property rights like anti-friction connecting rod. It obviously improves the capacity of the motor and also increased the running time.
Also our company can improve its load and working time without interruption and make downhole motor resist shock, vibration and high load; meet the requirement of complex drilling.
The downhole motor is according to SY/T 5383-1999.

SPECIFICATIONS FOR DOWN HOLE MOTOR
Model Illustration:

C   5   LZ  172*7.0   II - D   W   F   G

1   2   3   4   5     6    7   8   9   10

1. Type of power section
(C--Extended power section.D--Short power section.K--Air or foam power section.Omitted--Normal power section)
2. Lobes of rotor
3. Product code
4. Size(OD.mm)
5. Max.Pressure drop of bit nozzle
6. Design change code(I.II.III----)
7. Bent sub and bent housing
D--single bent(bent sub or bent housing)
P--bent sub and bent housing in same direction
T--double bent housing in same direction
S--double bent housing in two directions opposite to each other
J--gemel motor
K--adjustable bent housing
Omitted--straight motor
8. stabilizer(W--assembled with stabilizer;Omitted--no stabilizer)
9. hollowed rotor(F--hollowed rotor;Omitted--common rotor)
10. Heat-resistant performance(G--150'C;Omitted--120'C)

Specifications for Down Hole Motor (duo-lobe)

Model	OD		Flow rate	Speed (r/min)	motor dropof pressure(MPa)	woeking torque(N.m)	Max Torque  (N.m)	recom-menged drill(kN)	max.drill(kN)	Max.HP (kW)	Length  (m)	Connections (API REG)
	(Inch)	(mm)										Box up	Box down
5LZ60*7.0	23/8	60	1.26～3.13	140～360	2.5	160	280	5	10	6.03	3.3	1.9TBG	1.9TBG
5LZ73*7.0	27/8	73	1.26～5.05	120～480	3.45	275	480	12	25	13.8	3.45	23/8TBG	23/8
5LZ89*7.0	31/2	89	2～7	95～330	4.1	560	980	18	37	19.35	4.67	23/8	23/8
5LZ95*7.0	33/4	95	4.73～11.04	140～320	3.2	710	1240	21	40	23.8	4.21	27/8	27/8
C5LZ95*7.0-Ⅱ	33/4	95	5～13.33	140～380	5.2	1200	1920	35	70	47.8	5.49	27/8	27/8
C5LZ95*7.0	33/4	95	5～13.33	140～380	6.5	1490	2235	40	80	59.3	6.88	27/8	27/8
5LZ100*7.0	37/8	100	4.73～11.04	140～320	3.2	710	1240	21	40	23.8	4.21	27/8	27/8
5LZ120*7.0	43/4	120	5.78～15.8	70～200	2.5	1300	2275	55	72	27.23	4.88	31/2	31/2
C5LZ120*7.0	43/4	120	6.667～20	90～270	5.2	2500	4000	55	100	70.5	6.88	31/2	31/2
3LZ165*7.0	61/2	165	17～27	200～300	4.1	2500	3750	80	160	78.54	6.5	41/2	41/2
5LZ165*7.0	61/2	165	16～28	100～178	3.2	3200	5600	80	160	59.65	6.5	41/2	41/2
C5LZ165*7.0	61/2	165	18.93～37.85	125～250	5.0	5000	8000	90	180	112.6	8.15	41/2	41/2
D7LZ165*7.0	61/2	165	18～28	130～200	2.5	5000	3680	80	150	48.2	4.97	41/2	41/2
9LZ165*7.0	61/2	165	19～31.6	85～135	2.5	2300	5600	80	160	45.24	5.7	41/2	41/2
5LZ172*7.0	63/4	172	18.93～37.85	100～200	3.2	3200	5856	100	200	76.6	6.71	41/2	41/2
C4LZ172*7.0	63/4	172	18.93～37.85	150～300	7.0	3660	10110	170	340	198.55	9.18	41/2	41/2
C5LZ172*7.0-Ⅱ	63/4	172	18.93～37.85	100～200	4.5	6320	8240	150	300	1.7.8	7.76	41/2	41/2
C5LZ172*7.0	63/4	172	18.93～37.85	100～200	6.0	5150	10992	170	340	144	9.18	41/2	41/2
5LZ197*7.0	73/4	197	22～36	95～150	3.2	6870	8750	120	240	78.54	6.9	51/2	65/8
C5LZ197*7.0	73/4	197	22～36	100～160	5.2	5000	14220	145	290	150	8.7	51/2	65/8
C3LZ216*7.0	81/2	216	28～56.78	145～290	5.0	8890	12700	200	360	240.8	8.285	65/8	65/8
C5LZ216*7.0	81/2	216	28～56.78	105～210	5.0	10700	17100	200	360	235.3	8.285	65/8	65/8
3LZ244*7.0	95/8	244	18.93～56.78	96～290	5.0	7040	11260	210	400	213.8	7.56	65/8	75/8
5LZ244*7.0	95/8	244	50.7～75.7	90～140	2.5	9300	16275	210	400	136.3	7.8	65/8	75/8

Specifications for Down Hole Motor (Single-lobe)

Model	OD		Flow rate	Speed (r/min)	motor dropof pressure(MPa)	woeking torque(N.m)	Max Torque (N.m)	recom-menged drill(kN)	max.drill(kN)	Max.HP (kW)	Length(m)	Connections (API REG)
	(Inch)	(mm)										Box up	Box down
LZ127*3.5	5	127	9.5～18.5	355～560	2.5	576	1152	20	40	33.78	5.8	31/2	31/2
LZ165*3.5	61/2	165	12.6～22	275～480	2.5	935	1870	29	55	47	6	41/2	41/2
LZ197*3.5	73/4	197	19～28.4	275～415	2.5	1532	3064	54	83	66.6	6.2	51/2	65/8
LZ244*3.5	95/8	244	25.2～44	215～375	2.5	2632	5246	49	102	103	7.87	65/8	75/8
LZ100*7.0	37/8	100	4.7～11	280～700	5.17	650	1300	35	57	47.65	6.4	27/8	27/8
LZ120*7.0	43/4	120	6.33～15	245～600	4.0	790	1580	35	70	50	6.4	31/2	31/2
LZ127*7.0	5	127	9.5～19	345～690	3.1	712	1424	47	110	51.5	6.6	31/2	31/2
LZ165*7.0	61/2	165	15.8～25.2	350～550	4.1	1817	3634	80	160	104.7	7.3	41/2	41/2
LZ197*7.0	73/4	197	19～31.6	230～390	4.1	2928	5856	120	240	120	7.8	51/2	65/8
LZ244*7.0	95/8	244	38～63	240～400	4.1	6236	12472	213	329	261.2	9	65/8	75/8

Specifications for Down Hole Motor (Air or Foam)

Model	OD		Flow rate	Speed (r/min)	motor dropof pressure(MPa)	woeking torque(N.m)	Max Torque (N.m)	recom-menged drill(kN)	max.drill(kN)	Max.HP(kW)	Length(m)	Connections (API REG)
	(Inch)	(mm)										Box up	Box down
K5LZ95*7.0	33/4	95	5～10	60～130	2	1000	1600	30	60	13.61	5.8	27/8	27/8
K7LZ120*7.0	43/4	120	10～20	50～100	1.8	2770	4430	55	100	29.0	6.2	31/2	31/2
K7LZ172*7.0	63/4	172	22～38.5	50～100	2.4	6000	9600	150	300	62.8	6.7	41/2	41/2
K7LZ197*7.0	73/4	197	33.5～56.7	50～80	2.4	11000	17600	200	380	92.2	6.9	51/2	65/8
K7LZ244*7.0	95/8	244	42～70	40～70	2.4	15000	24000	210	400	110	7.8	65/8	75/8

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