The Skid-Mounted Drilling Rigs
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Skid-Mounted Drilling Rigs
This kind of drilling rigs are designed and manufactured in accordance with API standards.
These drilling rigs adopt an advanced AC-VFD-AC or AC-SCR-DC drive system and a non-step speed adjustment can be realized on the draw works, rotary table, and mud pump, which can obtain a good well-drilling performance with the following advantages: calm startup, high transmission efficiency and auto load distribution.
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Combined Driven Drilling rig
Combined Driven Drilling rig rotary table is driven by electric motor, drive drawwork and mud pump are driven by diesel engine. it overcomes the high cost of electric drive , shortens the mechanical transmission distance of the drilling rig, and also solves the problem of high drill floor rotary table drive transmission in mechanical drive rigs. The Combined Driven Drilling rig has met the requirements of modern drilling technology, it has strong market competitiveness.
Main models: ZJ30LDB,ZJ40LDB,Z50LJDB,ZJ70LDB etc.
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SCR Skid-Mounted Drilling Rig
Main components/parts are designed and made to API Spec for ease of participating in international bids of drilling rigs.
The drilling rig has excellent performance, is easy to operate, has high economic efficiency and reliability in operation, and a high degree of automation. While providing efficient operation, it also has higher safety performance.
It adopts digital bus control, has strong anti-interference ability, automatic fault detection, and perfect protection functions.
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VFD Skid-Mounted Drilling Rig
Apart from being more energy efficient, AC powered rigs allow the drilling operator to more accurately control the rig equipment, thus enhancing rig safety and reducing drilling time.Drawworks is driven by two VFD AC motors with 1+1R/2+2R step-less speed, and reversal will be realized by AC motor reversal.On an AC powered rig, AC generator sets (diesel engine plus AC generator) produce alternating current that is operated at variable speed via a variable-frequency drive (VFD).