Downhole drill bit cutting element with chamfered ridge

#Not applicable.

#This present disclosure relates generally to drilling equipment used in wellsite operations. More specifically, the present disclosure relates to drill bits and cutting elements used for drilling wellbores.

#Various oilfield operations may be performed to locate and gather valuable downhole fluids. Oil rigs are positioned at wellsites and downhole tools, such as drilling tools, are deployed into the ground to reach subsurface reservoirs. The drilling tool may include a drill string with a bottom hole assembly, and a drill bit advanced into the earth to form a wellbore. The drill bit may be connected to a downhole end of the bottom hole assembly and driven by drillstring rotation from surface and/or by mud flowing through the drilling tool.

#So that the above recited features and advantages can be understood in detail, a more particular description, briefly summarized above, may be had by reference to the embodiments thereof that are illustrated in the appended drawings. It is to be noted, however, that the examples illustrated are not to be considered limiting of its scope. The figures are not necessarily to scale and certain features and certain views of the figures may be shown exaggerated in scale or in schematic in the interest of clarity and conciseness.

#FIG. 1 is a schematic diagram of a wellsite including a rig with a downhole tool having a drill bit advanced into the earth to form a wellbore.

#FIGS. 2A and 2B are perspective and end views, respectively, of a fixed cutter drill bit with cutting elements thereon.

#The description that follows includes exemplary apparatuses, methods, techniques, and/or instruction sequences that embody techniques of the present subject matter. However, it is understood that the described embodiments may be practiced without these specific details.

#This disclosure is directed to a cutting element (or insert) for a drill bit used to drill wellbores. The cutting element includes a face (or working surface) having at least two side regions with an elongated ridge therebetween, a ramp, and a chamfer. The ridge extends from the chamfer at a periphery of the face to a location along the face (e.g., a central part of the face) to draw extrudates down the pair of side regions. The ramp extends at an angle from the side regions to flow fluid toward the leading edge during drilling.

#FIG. 1 depicts a wellsite 100 in which the subject matter of the present disclosure maybe used. As generally shown, cutting elements 101 and assemblies and processes employing the cutting elements may be deployed at a downhole end of a downhole tool 102 into a wellbore 104 formed in a subterranean formation 106 by any suitable means, such as by a rotary drill string 108 operated from a drilling rig 110 to rotate a drill bit 112. A mud pit 111 is provided at the wellsite 100 to pass drilling fluid through the downhole tool 102 and out the bit 112 to cool the drill bit 112 and carry away cuttings during drilling.