Workover Rigs

- Special-environment workover rigs

- Special-environment workover rigs

The desert workover rig:

- This workover rig is designed and manufactured in accordance with API Spec Q1,

4F, 7k, 8C and technical standards of RP500, GB3826.1, GB3836.2, GB7258,

SY5202 as well as "3C" compulsory standard.

- The whole rig structure is compact and highly integrated, which requires a smaller

working site. A good and reasonable assembly of CATERPILLAR engine and

ALLISON transmission box can supply high driving efficiency and increase safe

performance.

- The substructure is heavy-duty 8x8 nonnal1y -drive with a hydraulic steering system

/desert tires and an anti-sand filter. Diesel engine is equipped with sand-proof filter

and canopy, so that the workover rig can move and work in desert conditions.

- An inner-circulated forced water cooling system can insure the drawworks works

well under a high-temperature condition.

- The compound box for rotary table has a function of forward-reverse shift, which

can be suitable for DP's rotary operations. The anti-torque release device can be used

to release the deformation energy of the DP safely.

- The mast is front -open type and double- section structure, which can be telescoped,

raised and extended hydraulically.

- The drill floor is twin-body telescopic type or parallelogram structure, which is

convenient for installation and transportation. The dimension and height of the drill

floor can be designed according to the user's requirements. Safety and inspection

measures are strengthened under the guidance of the design concept of "Humanism

Above All" to meet the requirements of HSE.

Main technical Specification for desert workover rig

- Special-environment workover rigs

- This workover rig is designed and manufactured in accordance with API Spec Q1, 4F, 7k, 8C and technical standards of RP500, GB3826.L GB3836.2 GB7258, SY5202 as well as "3C" compulary standard.

- The whole unit is compact and has a high working efficiency with a transmission mode of hydraulic + mechanical transmission way.

- The self-made 6x6 cruise substructure is used on the workover rig for quick movement under the environment of shoal and swamp.

- The mast is front -open type and with single-section or double- section structure, which can be telescoped, raised and extended hydraulically or mechanically .

- Safety and inspection measures are strengthened under the guidance of the design concept of "Humanism Above All" to meet the requirements of HSE.

Main technical specification for swap workover rig

- Heavy-duty (above 80T) mobile workover rigs - This kind of workover rigs are designed and manufactured in accordance with API Spec Q1, 4F, 7k, 8C and technical standards ofRP500, GB3826.1, GB3836.2, GB7258, SY5202 as well as "3C" compulsary standard. - The whole rig structure is compact, highly integrated, and requires a small space for installation. - The heavy-duty chassis are 8x6, 10x8, 12x8, 14x8 constant-drive and self-propelled, equipped with hydraulic steering system and have a good capability of passage and cross country. - A good and reasonable assembly of CATERPILLAR engine and ALLISON transmission box can supply a high driving efficiency and increase safe performance. - Band brake or disc brake is applied for the main brake and the air disc brake/water brake or FDWS is used for auxiliary brake. - The compound box for rotary table has a function of forward-reverse speed shift gears, which can be suitable for DP's rotary operations. The anti-torque releasing device can be used to release the deformation energy of the DP safely. - The mast is front-open type, with double- section structure, which can be telescoped, raised and extended hydraulically. - The drill floor is twin-body telescopic type or with parallelogram structure, which is convenient for installation and transportation. The dimension and height of the drill floor can be designed according to the user's requirements. - Safety and inspection measures are strengthened under the guidance of the design concept of "Humanism Above All" to meet the requirements of HSE.

- Light-duty (below 80T) mobile workover rigs

- This kind of work over rigs are designed and manufactured in accordance with API

Spec Q1, 4F, 7k, 8C and technical standards of RP500, GB3826.L GB3836.2,

GB7258, SY5202 as well as "3C" compulsory standard.

- The whole unit structure is compact and adopts hydraulic + mechanical driving

mode, with high comprehensive efficiency.

- The workover rigs adopt II-class or self-made chassis with various to meet the user's

different requirements.

The mast is front-open type and with single-section or double-section structure, which

can be raised and telescoped hydraulically or mechanically.

- Safety and inspection measures are strengthened under the guidance of the design

concept of "Humanism Above All" to meet the requirements of HSE

- Light-duty (below 80T) mobile workover rigs

The main technical specification for light-duty (below 80T) mobile workover rigs

- The offshore workover rigs

- This kind of workover rigs are designed and manufactured in accordance with API Spec Q1, 4F, 7k, 8C and technical standards of RP2A-LRFD, 2Z, l4F, l4G, 500, GB3826.1, GB3836.2 GB7258, SY5202. - A reasonable assembly of Caterpillar engine and Allison hydraulic transmission box can insure safety. The offshore workover rigs can be driven by VFD or SCR, which has a high driving efficiency and are easy to control. - The derrick is erective and front open, which can be structured with two sections or with T-type or telescopic multi sections without ropes for fixing. The effective height of the derrick is 29m, 31m and 33m. - According to the finite element structure analysis, the whole unit can fully meet the customer's requirements of wind-resistance and anti-vibration capabilities. - The surface of structural parts are treated with sand blasting, spray-painting baked painting, spray-aluminum and spray-zinc to meet the requirements of ocean environment and climate. - The rotary equipment, solid-control equipment and well-control equipment are equipped to meet the requirements of drilling and workover operations. The whole unit can be moved horizontally and longitudinally to meet cluster-well operation requirements. - Safety and inspection measures are strengthened under the guidance of the design concept of "Humanism Above All" to meet the requirements of HSE.

- The offshore workover rigs

The main technical specification for the offshore workover rigs