Introduction to underground operation equipment
The workover rig is a relatively basic and main source of power in well repair and underground operation construction. According to its operating structure, it can be divided into two forms: crawler type (drilling rig) and tire type (operation rig). Principle: It is to install a winch on a tractor or car, use the engine to drive the winch drum to rotate, and transmit the power to the lifting system through a steel wire rope.
Crawler type workover rig (drilling rig)
1. Function: Crawler type workover rigs are generally referred to as drilling rigs and are a commonly used power equipment in various oil field workover operations. Their function is to lift oil pipes, drill rods (sucker rods), and perform downhole fishing, pumping, and other construction operations.
2. Features: The tracked workover rig is not equipped with a derrick and has good off-road performance. It is suitable for low-lying areas. But its disadvantage is that it has a slow walking speed and is not suitable for the requirements of rapid transfer construction.
The commonly used well boring machines are AT-10 and XT-12.
Tire type workover rig (commonly known as joint operation rig or workover rig)
1. Function:
The workover rig is a relatively basic and main source of power in well repair construction, which completes tasks such as lifting and lowering pipes (rods) and downhole tools, lifting, pumping, and salvaging. It is a tire type workover equipment with a built-in derrick.
2. Characteristics:
Equipped with a self-supporting derrick, it is easy to walk and install, suitable for rapid relocation and construction operations. The disadvantage is that walking and entering the well site are relatively limited in low-lying, muddy areas, and during the rainy season when the mud is boiling.