1 Drilling tool tonnage and drilling tool length lifting time can be directly asked by the drilling engineer! This is a simple calculation!
The normal flow of circulating mud through solid control system-series mud pump-faucet-drilling tool-bottom hole-BOP stack-slurry outlet tank-triangular tank. During water plugging, the slurry outlet tank directly pumps the heavy slurry (barite preparation) into the bottom hole, forcing the well slurry to flow uncontrollably from the drilling tool-faucet-slurry outlet tank.
3 The rig is very simple, that is, pull up the hook of the traveling block and loosen the hook of the low traveling block.
4 The three drilling procedures should be transmitted evenly, and the drilling time should not be stuck, and the drilling time should not exceed 65,438+0 min. It is forbidden to pull hard and press hard. Pay attention to the changing parameters of WOB, vertical pressure and pump pressure, and record the time of drilling a single joint. Each shift shall record the drilling times, mud specific gravity and low pump speed.
The 4PDC drill bit looks like a single diamond slice of 30W ocean, with 5000 pieces. Its main function is to cut the bottom layer with moderate texture. If the 1 kai2 spud touches a sandstone layer, a roller bit must be used. You can understand that the roller is a special operation of crushing! PDC is used for conventional cutting.
5 faucet injects mud into the bottom hole to inhibit circulating drilling (but drilling drive depends on drilling disc)
Most of the drilling tools in the drilling team bear a bit torque depth of more than 6,000m (about this number), and the length of the drilling tools will be compressed. The upper bit may turn 20 times, and the lower bit may turn 1 time. There is also the pressure of downhole mud (the standard of drilling tools is to withstand 60MPA. I personally take a 5-inch drilling tool as an example). Of course, there are other drilling tools, such as screws, which inject mud to drive a hydraulic motor to drive a drill bit, so there is no need for a drill bit.
You can contact me if you don't know the details.