Well drilling method using combination system of screw and rotary guide tool
A rotary steering, combined system technology, applied in directional drilling, rotary drilling, rotary drilling rigs, etc., can solve problems such as insufficient wellbore cleaning and ROP limitation, and achieve the improvement of top drive speed, prolong life, reduce high effect
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[0022] In order to have a clearer understanding of the technical features, objectives and effects of the present invention, specific embodiments of the present invention will now be described with reference to the accompanying drawings.
[0023] In the prior art, when drilling with a screw and rotary steering tool combination system, a low top drive speed (40rpm~60rpm) has been used. The industry believes that a higher screw speed will easily cause the screw to be damaged or even twisted, but this knowledge is Cognitive misunderstanding caused by the speed limit of the bent screw.
[0024] In order to overcome the cognitive biases in the prior art, the present invention provides a drilling method using a screw and rotary steering tool combined system, which includes:
[0025] According to the dogleg degree of the wellbore, the wellbore is divided into low dogleg section, middle dogleg section and high dogleg section. The dogleg degree of the low dogleg section is smaller than that of...
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