Oil Rigs Now lists AC VFD drilling rigs for sale from independent sellers. A variable frequency drive (VFD) controls the speed and torque of the rig's AC motors.
Understanding AC VFD Drilling Rigs
AC VFD rigs give the driller fine control of drawworks, top drive and pump speed. This method allows for better torque management and energy efficiency, which can lead to reduced operational costs. As drilling technology evolves, the demand for AC VFD rigs continues to grow, providing operational advantages in various drilling scenarios.
Benefits of AC VFD Technology
- Energy Efficiency: AC VFD systems optimize power usage, resulting in lower energy costs.
- Enhanced Control: These rigs offer superior control over speed and torque, which can improve drilling precision.
- Reduced Maintenance: Fewer mechanical components lead to lower maintenance requirements and downtime.
Finding AC VFD Drilling Rigs
Interested buyers can browse through the listings on Oil Rigs Now to find various AC VFD drilling rigs. Each listing provides detailed information, enabling buyers to make informed decisions. For specific inquiries, including pricing, contact Bob Neundorf at [email protected] or call 832-563-0880.
Steps to Purchase
When looking to purchase AC VFD drilling rigs, consider the following steps:
- Review the available listings on Oil Rigs Now.
- Contact the seller for more details and to arrange for any inspections needed.
- Finalize your purchase directly with the seller.
Ask the seller about inspection and logistics when you inquire.
AC VFD Rigs Listed on Oil Rigs Now
Current AC-drive listings run from 1500 HP to 3600 HP:
- Drilling Rig 1000 — 1500HP AC 600K Cantilever Triple with Walking Package: built 2011, with a Hyduke 136 ft mast, 600,000 lb hook load, an E80 AC drawworks, four GE Jenbacher 1,000 kW natural gas generators, a Hyduke/Hodgson walking system with 900-ton lift, an NOV IDS-350PE top drive and a 20,000 ft depth rating.
- NOV Ideal 1500HP AC Rig #826: AC VFD, 720,000 lb hook load, an NOV TDS-11SA top drive and three MTU 12V4000 engines.
- GES 1600 HP AC-VFD Drilling Rig 163: a GES AC-VFD electric walking rig.
- HH 2000 HP AC VFD Drilling Rig: AC-VFD-AC drive with a 2,300 HP drawworks and 1,000,000 lb hook load.
- 3300HP AC DBS Drilling Rig — Kuwait Desert Operations: two AC motors at 3,000 kW (4,000 HP) on a JC90DB drawworks, an HH VFD house with ABB/Siemens drives, seven CAT 3512C HD gensets totaling 8,330 ekW and a 1,000-ton AC top drive.
- 3000HP AC/VFD Drive Land Drilling Rig and 3600 HP AC Land Drilling Rig: a new-build 3000 HP AC/VFD rig and a 3600 HP AC rig.
These figures are the sellers' own spec sheets as listed. Confirm each one against the equipment and its paperwork during an independent inspection.
The Jenbacher package on the 2011 rig runs on natural gas, which matters to operators who want to burn field gas instead of diesel.
FAQ
What is an AC VFD drilling rig?
An AC VFD drilling rig uses variable frequency drive technology to control the speed and torque of the rig's AC motors.
How do I inquire about a rig?
You can contact the seller directly through the listing or reach out to Bob Neundorf at [email protected] for assistance.
Can I inspect the rig before purchasing?
Yes, it is advisable to have an independent inspection conducted before making a purchase.
What should I check in the VFD house of a used AC rig?
Record the drive maker and model, the control software version and whether its licenses transfer with the rig, the spare drive modules included, the condition of the house cooling system and the service history. Drive parts for older models can have long lead times.
Can an SCR rig be converted to AC?
It has been done, but it means new drawworks and pump motors, a new drive house and rewiring. Get an engineering quote before treating an SCR rig as an AC rig in waiting.
Contact Oil Rigs Now
If you are interested in AC VFD drilling rigs for sale, contact Oil Rigs Now for more information. Take the next step in your drilling operations by exploring the available listings today.