Optimization and application study on targeted formation ROP enhancement with impact drilling modes based on clustering characteristics of logging
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DOI: 10.1016/j.egyr.2020.10.020
Abstract: Abstract Rate of penetration (ROP) is affected by many factors (i.e. rock properties, drilling parameters), and the increase of ROP is required to meet the needs of modern drilling operations. This paper presents a methodology… read more here.
Keywords: impact drilling; energy; impact; rop ... See more keywords
Theoretical and Experimental Study of the Effects of Impact Drilling Parameters on the Properties of Surrounding Rock Damage
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DOI: 10.1155/2020/8865619
Abstract: Using a self-designed hydraulic impact drilling test-bed and rock core drill, six groups of cylindrical granite specimens (93 mm dia. × 200 mm) containing central axial holes formed either by impact or nonimpact drilling methods were tested in uniaxial… read more here.
Keywords: impact drilling; impact power; damage; rock damage ... See more keywords
On the development of high-frequency torsional impact drilling techniques for hard formation drilling
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DOI: 10.1177/1687814018781605
Abstract: Stick-slip vibration is a big problem that the drilling of deep wells has to face, especially for drilling of tough formations. This type of vibration leads to failure problems, reduces the rate of penetration, and… read more here.
Keywords: torsional impact; high frequency; impact drilling; frequency torsional ... See more keywords