The top drive of the top drive(Top drive)
Oil and gas
Top drive, Is a hydraulic or electric motor, which is a separate device in Drilling rig Installed and drill the drill, thereby moving the drill. Upper -operative systems from year 2 to industry Drilling Entered and replaced by the multi -faceted pipe (Killy/ Kelly) became.
Oil goods, standard safety quality
Drilling systems equipped with The upper handler, Do Drilling operation They have made much faster by accelerating the process of lifting the equipment from the well and moving them to the mast level.. Of the different advantages of the upper leaders (Top drives) In drilling operations, can: Increase the power control of the wells Oil and gas, Preventing drilling pipes, reducing the opening time and closing the pipe, the full rotation of the upper pipes, accelerating drilling operations, and ultimately increasing drilling efficiency..
Technical Inspection of Oil, Gas, Petrochemical and Refinery Equipment
Increased progress and development Drilling science Especially more use of high efficiency and lower weight electric motors, advanced electronic and electronic circuits in mechanical processes, and the disadvantages of RT drilling method can be among the main reasons for the car entry and the upper stimulus package. (TD) Found to the drilling scene and scene. Drilling top drive (Drillstring) It is mounted on a drilling rig and at the right height. The performance mechanism in this package is entirely different from the RT drilling method so that it acts as a column drill with a stimulant motor at the top and applies to the drilling from the top and extends the rotational movement through a gearbox on the drilling strand.. While in RT the stimulus set was fixed and motion and torque were transferred to the drilling string through the rotary table, Bush Kelly and Kelly. This package has its own capabilities automatically using hydraulic force capable of closing and opening drills and tools, removing the drilling pipe from the special location, centering it with the axle and closing it.. Therefore, in these devices, in addition to largely eliminating the role of the operator in drilling, the drilling process is also reduced..
Inspection of goods, oil and gas industries
“Top drive” One of the key and important machinery in oil industry That is in addition to increasing the speed of drilling operations from view safety Also very important and preventing accidents while drilling such as Blast control The presence of gas holes in the drilling of wells Oil This product is used in the oil industry and is used to develop exploited oil fields, including land and offshore fields..
oil industry
Here's a look at the components of the Top Drive device, which includes this device:
- The driving force (Motor Drive)
- Rottery joint (Swivel)
- The inverted torque axis (Torque Tube)
- Tube carrier mechanism (Pipe Handler)
- How the pipe carriers function
Oil equipment
In the top of the driver's set of motors and gearboxes (Motor Drive) Been formed along with the rotating joint on the guide guide (Torque Tube) That has the role of guiding and maintaining the direction of the movement and tolerance of the opposite forces during drilling. To this set of Pipe Handler Pipe Tube Mechanism and Tools and Pipe (Torque Wrench) Added. The drilling mechanism is done in the top of the drive as follows:
Pipes Drilling To the extent required to be connected to each other (Usually 2 pipes) And in a special place (Mouse Hole) They are placed. Top drive by carrier (Pipe Handler) Removes the pipes from its location and moved to the top point of the rig. Drilling pipes are trapped under the drive by this system and connected to the drive by the pipe connecting mechanism.. After this step, the motor moved and the vertical force of drilling operations began until the top of the drive reaches the lowest point possible. At this point, the driving motor stops and the pipes inside the well are tightened by the source equipment on the opening of the well, then the end of the pipe is opened by the machine and the top of the drive begins the cycle again by removing the pipe.. In this section, the new drilling pipe is attached from the bottom to the drilling strand inside the well and then connected to the top drive at the top and as before..
Quality control in the equipment of the oil and gas industries
Some advantages of top drive include:
- Reduce drilling time
- Reversal
- safety
- Provide the type of drilling
- Controlling the connection and discharge of pipes
- Pump flowing faster
- Increase the depth of drilling
- Reduce costs
Also some of the disadvantages of the top drive included:
- On top drive. Since energy transfer routes (Electricity, hydraulics) They move along the rig..
- Due to the significant weight of the cables and drilling mud hoses, the forecast of strong and reliable supports in addition to increasing the cost will make drilling equipment heavier and ultimately mast..
- Due to the use of hydraulic systems in the top drive packages, sudden pressure drop in this system may impair and fix drilling pipes.. Also, the environment of TD devices is usually corrosive. This can reduce safety Become hydraulic valves.
- Since the use of hydraulic systems to remove, hold and close the pipes is a necessity for these packages, it will cause difficulty and disappearance of the drive function..
- Given that the new system drive is a new and current method, such as Rotary Table, the cost of initial investment is higher and maintenance sensitivity is also significant..
It is worth noting that the drive package can be divided according to the location of the installation and the propulsion system.
Possibly justification plan
Industrial engineering company Fhamh, RandIe 1 technical inspection And Economic Services In the oil, gas, petrochemical and refinery industry from Iran Trade Development Organization.