Method and system for regulating precision pressure-control well drilling throttle valve
A drilling choke valve and managed pressure drilling technology, which is used in earth-moving drilling, flushing wellbore, and wellbore/well components, etc. and other problems, to achieve the effect of improving the effectiveness and effectively maintaining the balance of the bottom hole pressure.
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[0016] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and the drawings. Here, the exemplary embodiments of the present invention and the description thereof are used to explain the present invention, but not as a limitation to the present invention.
[0017] In the embodiment of the present invention, a method for adjusting the throttle valve of a fine pressure control drilling is provided, such as figure 1 As shown, the method includes:
[0018] Step 101: Obtain in real time the displacement of the mud pump, the displacement of the back pressure pump, and the opening value of the throttle valve in the fine pressure control drilling system within the preset time period before the current time;
[0019] Step 102: According to the acquired displacement of the mud pump, the displacement of the back pressure pump and the opening value...
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