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The roller square core plug is a commonly used tool in petroleum drilling operations. It works in conjunction with the rotary table square block to drive square drill rods of different sizes, including square and hexagonal rods, by replacing rollers of different specifications accordingly.
Tongs are tools specifically used in petroleum, natural gas, and geological exploration oil drilling engineering to lift drilling tools.
The square core bushing is one of the essential pieces of equipment for petroleum drilling operations. It is placed inside the large square core bushing, and its function is to transmit the torque from the rotary table to the downhole drilling tools.
The swivel joint is a special joint used to connect the drill pipe with the casing during the middle or after the casing is run, allowing circulation of drilling fluid.
It can be divided into drill pipe threaded swivel joints, casing threaded swivel joints, and swivel threaded swivel joints as needed.
The upper part of the casing swivel joint has drill pipe joint threads for connecting to the drill pipe or is connected to the pipeline by a swivel joint.
The lower part is machined with API casing tapered trapezoidal threads (or API casing long round thread/short round thread) for connecting the casing coupling.
Suitable for petroleum drilling tripping operations, it prevents mud splashing caused by blockage during the disassembly of drilling tools, contaminating the platform, allowing the drilling mud to be recovered and reused. It features convenience, safety, platform cleanliness, and mud conservation.
During tripping in and out of the hole, the drill pipe blowout preventer helps prevent unnecessary loss of costly drilling fluid and maintains a safer, cleaner working environment.
The drill collar lifting sub is an integral component made of alloy structural steel that has been heat-treated and precision machined. The heavy-duty drill collar lifting sub is used together with the drill pipe elevator latch to lift the drill string. The lifting sub is used together with the drill pipe elevator latch to hoist the drill string.
The drill bit box, also known as the drill bit loader, is mainly used for loading and unloading tricone drill bits.
The casing head is one of the core components of the wellhead equipment in drilling, mainly used to secure the wellhead structure and perform multiple functions. As a key hub connecting the downhole casing string with surface equipment, it not only supports the weight of all casing strings except the surface casing but also seals the annular space of the casing to prevent pressure cross-flow, ensuring well control safety. During the drilling phase, the casing head provides the installation base for the blowout preventer, and during the oil production period, it transitions to connect the tubing head and Christmas tree. Additionally, its side outlet function supports cement squeeze, pressure balancing, and emergency fluid injection, significantly enhancing cementing quality and operational flexibility.
The casing head is an important connector between the casing and the wellhead device. It is used for connections between casing strings, between the casing and the blowout preventer, and for support and connection between the wellhead and the oil (gas) well after completion. Its lower end is connected to the surface casing by threads, and the upper end is connected to the wellhead device or blowout preventer by flange or clamp. It supports the weight of subsequent casing strings through the hanger, bears the weight of the blowout preventer, forms a pressure seal between the inner and outer casings, provides an outlet for releasing pressure between casing strings, and allows for special operations related to drilling and production processes.
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