HDD Oil Sealed - Wenzel Downhole Tools

Millennium HDD Oil Sealed Motor Assembly

The Wenzel Downhole Tools Millennium HDD Oil Sealed Drilling Motor is designed to offer reliable performance for both straight and directional drilling within the oil and gas industry, as well as for civil construction applications requiring trenchless horizontal directional drilling (HDD).

FEATURES & BENEFITS
TECHNICAL SPECIFICATIONS

High allowable WOB (weight on bit) and load capacities.
Equipped with 2° Fixed Bend Assembly.
Features the HDD Driveline for shortened overall length.
Inhouse manufactured components adhere to Wenzel’s high standard of premium materials and quality production.
Patented design.

See why Wenzel is the right choice for your HDD needs (pdf)

Imperial

						Operating Capacity
Nominal Motor OD (in)	Model	Box to Bend (in)	Overall Length (ft)	Hole Size (in)	Standard Bit Box Thread (API)	Max WOB (lbs)	Max Bit Overpull (lbs)	Flow Range (gpm)	Speed Range (rpm)	Max Differential Pressure (psi)	Torque at Max Diff. Pressure (ft lbs)	Elastomer Type
2 7/8	M6 7837	29	13.5	3 1/2 – 4 1/2	2 3/8 Reg	11,500	11,500	50 – 130	115 – 300	600	680	Std
3 1/2	M6 7838	30	16.2	4 1/2 – 5 7/8	2 7/8 Reg	18,500	18,500	75 – 150	120 – 235	650	1,080	Std
4 3/4	M5 7822	50	16.7† (17.6)‡	5 7/8 – 7 7/8	3 1/2 Reg	54,000	31,000	100 – 250	50 – 140	450	2,130	HR
6 1/2	M6 7828	56	18.7† (19.6)‡	7 7/8 – 12 1/14	4 1/2 Reg 6 5/8 Reg	91,000	51,000	150 – 400	50 – 140	600	4,770	HR
8	M6 7830	67	23.5† (24.4)‡	9 5/8 – 12 1/4	6 5/8 Reg	105,000	73,000	400 – 900	65 – 150	450	7,470	Std

† Motor length when using short HDD driveline and service sub.
‡ Motor length when using standard driveline and service sub (length in brackets).
Note: Adjustable bend assembly option only compatible for use with standard driveline.
Specifications are based on as-new condition and are subject to change without notice.

Metric

						Operating Capacity
Nominal Motor OD (mm)	Model	Box to Bend (mm)	Overall Length (m)	Hole Size (mm)	Standard Bit Box Thread (API)	Max WOB (daN)	Max Bit Overpull (daN)	Flow Range (lpm)	Speed Range (rpm)	Max Differential Pressure (kPa)	Torque at Max Diff. Pressure (N.m)	Elastomer Type
73	M6 7837	0.72	4.11	89 – 140	2 3/8 Reg	5,100	8,200	190 – 490	115 – 300	4,100	920	Std
89	M6 7838	0.76	4.95	114 – 149	2 7/8 Reg	8,200	8,200	285 – 570	120 – 235	4,500	1,500	Std
121	M5 7822	1.27	5.11† (5.38)‡	149 – 200	3 1/2 Reg	24,000	13,800	380 – 950	50 – 140	3,100	2,890	HR
165	M6 7828	1.42	5.70† (5.97)‡	200 – 311	4 1/2 Reg 6 5/8 Reg	40,500	23,000	570 – 1,510	50 – 140	4,100	6,470	HR
203	M6 7830	1.70	7.16† (7.43)‡	244 – 311	6 5/8 Reg	47,000	32,000	1,510 – 3,410	65 – 150	3,100	10,130	Std