A Method for High Drilling Speed Rotary Steerable System to Realize High Buildup Rate
A technology of rotary steering and system realization, which is applied in drilling equipment and methods, automatic control systems for drilling, directional drilling, etc. The effect of drilling speed
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[0022] The present invention will be described in detail below with reference to the drawings and embodiments.
[0023] A method for achieving high build-up rate of a high-speed rotary steerable system, the drill tool assembly used includes a drill bit, a rotary steerable head, a lower stabilizer, a bent-shell downhole motor, a MWD and an upper stabilizer that are sequentially connected in series . The curved casing downhole dynamic drilling tool may be a curved casing screw drilling tool or a curved casing turbodrilling tool;
[0024] Described method comprises the following steps:
[0025] Step 1. Assemble the drill string according to the above sequence and drop it to the bottom of the well;
[0026] Step 2: Drilling mud is circulated, and the rotary steering head performs rotation-steering-directional drilling as required. Since the drilling tool has a curved shell downhole power drilling tool, the speed of the drill bit is the sum of the speed of the surface drilling di...
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