Drilling Rig Accessories

We supply drilling rig accessories, such as Drawworks, Rotatory Table, Top Drive, Hook and others. All the product has related API, ISO certificate. QA & QC covers all the manufacture procedures to make sure that each single unit we provide to our customer is with the best quality and conditions. The Equipment could match to serials of rigs, to work for onshore & off shore drilling in desert, cold area and other circumstances.

  • Hook Blocks
    Hook blocks, often called crane blocks, designed for some specific application, are below-the-hook crane lifting equipment. The hook is attached to the bottom of the traveling block and provides a way to pick up heavy loads with the traveling block. The hook is either locked (the normal condition) or free to rotate, so that it may be mated or decoupled with items positioned around the rig floor, not limited to a single direction. Hook Blocks design prevents hang-up on tool joint shoulders, racking platforms, or mast girts. Sheaves are standard on every Block and heavy, steel-plated, hinged sheave guards open quickly and easily for fast reeving. An automatic safety lock prevents the hook from opening under load, and all weight (including the swivel bail) must be removed and the lock manually released before the hook will open.
  • Swivel
    Swivel, a mechanical device that suspends the weight of the drilling string. It is designed to allow rotation of the drilling string beneath it conveying high volumes of high-pressure drilling mud between the rig's circulation system and the drilling string. A swivel is a connection that allows the connected object, such as a gun or chair, to rotate horizontally or vertically. A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually prevented from slipping out by a nut, washer or thickening of the rod. The device of swivel can be attached to the ends of the rod or the center. Another common design is a sphere that is able to rotate within a support structure. The device is attached to the sphere.
  • Top Drive
    Top Drive is a device that turns the drilling string. It contains one or more motors connected with appropriate gearing to a short section of pipe called a quill, that in turn may be screwed into a saver sub or the drilling string itself. The top drive is suspended from the hook, so the rotary mechanism is free to travel up and down the derrick. This is radically different from the more conventional rotary table and kelly method of turning the drilling string because it enables drilling to be done with three joint stands instead of single joints of pipe. It also enables the driller to quickly engage the pumps or the rotary while tripping pipe, which cannot be done easily with the kelly system. While not a panacea, modern top drives are a major improvement to drilling rig technology and are a large contributor to the ability to drill more difficult extended-reach wellbores. In addition, the top drive enables drillers to minimize both frequency and cost per incident of stuck pipe.
  • Auxiliary Brake
    Auxiliary Brake is put at the axle of a trailer to assist in stopping the trailer when loaded. When attempting to slow or stop a trailer equipped with trailer axle brakes, an electric auxiliary brake switch mounted inside of the passenger compartment of the towing vehicle invokes the electric auxiliary braking components on the trailer axle. This allows the trailer to be slowed or stopped suddenly without jackknifing or wrecking the tow vehicle. As the trailer auxiliary brakes engage, the trailer is slowed to a straight and manageable stop, which allows the tow vehicle to remain in control and comfortably negotiate corners, traffic conditions and other road hazards.
  • Drawworks
    Drawworks are the primary hoisting machinery that are a component of a rotary drilling rig. Its major feature is to provide a way of raising and lowering the traveling blocks. The wire-rope drilling line winds on the drawworks drum and extends to the crown block and traveling blocks, allowing the drilling string to be moved up and down as the drum turns. The segment of drilling line from the drawworks to the crown block is called the "fast line". The drilling line then enters the sheaves of the crown block and it makes several passes between the crown block and traveling block pulleys for mechanical advantage. The line then exits the last sheave on the crown block and is fastened to a derrick leg on the other side of the rig floor. This section of drilling line is called the "dead line".