| CPC E21B 44/00 (2013.01) [E21B 7/04 (2013.01); E21B 21/10 (2013.01); E21B 47/024 (2013.01); E21B 47/06 (2013.01); E21B 47/12 (2013.01)] | 4 Claims |
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1. A wireless remote control method for controllable rotary sliding guiding drilling, comprising the following steps of:
S1: setting a controllable rotary sliding guiding drilling mechanism (1) into two states of a state 0 and a state 1, wherein the state 0 refers to drilling and the state 1 refers to rotary sliding guiding drilling, writing a corresponding program into a processor (10), initializing the controllable rotary sliding guiding drilling mechanism (1) to be in the state 0 before lowering, lowering a drill tool to a bottom hole, and driving a drill bit (6) to perform drilling;
S2: during drilling, emitting an oriented tool face angle A according to drilling requirements, receiving a real-time tool face angle B measured by a MWD (2) through the processor (10) by the controllable rotary sliding guiding drilling mechanism (1), and feeding back information through a wireless data transmission module (8);
S3: controlling to stop a pump for 30 seconds to 60 seconds after receiving a signal, identifying an effective signal of stopping the pump for 30 seconds to 60 seconds by the processor (10), setting the controllable rotary sliding guiding drilling mechanism (1) to be in the state 1, judging an angle change rate based on an angle difference between the oriented tool face angle A and the real-time tool face angle B in combination with a numerical value of the real-time tool face angle B by setting the oriented tool face angle A as a target value in the processor, and distributing a clutching frequency N to a clutch module (7);
S4: controlling an electromagnetic valve (11) to be turned on and off based on the distributed clutching frequency N by the processor (10), controlling a bent screw drill tool (3) to perform rotary sliding guiding drilling according to a target tool face angle, and identifying a running state according to an internal and external pipe pressure difference by an external pipe pressure sensor (9) and an internal pipe pressure sensor (12); and
S5: when drilling is needed, stopping the pump for 30 seconds to 60 seconds, identifying the effective signal of stopping the pump 30 seconds to 60 seconds by the processor (10), and adjusting the controllable rotary sliding guiding drilling mechanism (1) to be converted from the state 1 into the state 0 to perform drilling; and
wherein, the wireless remote control method for controllable rotary sliding guiding drilling is realized on the basis of a wireless remote control system for controllable rotary sliding guiding drilling, and the wireless remote control system for controllable rotary sliding guiding drilling comprises:
the controllable rotary sliding guiding drilling mechanism (1), wherein an upper end of the controllable rotary sliding guiding drilling mechanism (1) is provided with a drill rod (6); and
further comprising:
the MWD (2) arranged at a lower end of the controllable rotary sliding guiding drilling mechanism (1);
the bent screw drill tool (3) mounted at a lower end of the MWD (2);
the drill bit (5) mounted at a lower end of the bent screw drill tool (3), wherein the drill bit (5) is connected with the bent screw drill tool (3) through a connector (4); and
the clutch module (7) mounted on the controllable rotary sliding guiding drilling mechanism (1), wherein the clutch module (7) comprises the electromagnetic valve (11), the processor (10), the internal pipe pressure sensor (12), the external pipe pressure sensor (9) and the wireless data transmission module (8);
output ends of the internal pipe pressure sensor (12) and the external pipe pressure sensor (9) are both electrically connected with an input end of the processor (10), an output end of the processor (10) is electrically connected with an input end of the electromagnetic valve (11), and at least three electromagnetic valves (11) are provided.
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