Recently, the Technology Research Institute of core drill bit Engineering wood drill biting Engineering Company was informed by the hospital is responsible for research of "8 and a half inches deep six blades and PDC bits," Xu Ping 1- 4 wells and deep self-developed hydraulic rotary percussion tool "partner "132 hours, an average penetration rate up to 2.77 m / hour, compared with the previous trip cone bit speed 4.3 times, 1.4 times in the same layer is located adjacent wells Xushen 606 wells, wood drill biting engineering company to achieve a" hydraulic rotary punch tools + PDC wood drill bit bit "completely independent research. According to field research leading to the hospital's instructions, wood drill biting Engineering Technology Research Institute serious domestic and foreign enterprises benchmarking analysis, "problem-oriented, chasing away the problem," the introduction of domestic wood drill bit and wood drill bit for deep large gap with PDC, etc. problems, and actively carry out with China petroleum technology R & D Center in Houston, technology exchange, using its world advanced PDC PDC technology, integrated use of parametric feature modeling of three-dimensional simulation design technology, cloth tooth technology and the flow field simulation technology, independent design and manufacture and a more aggressive cutting, suitable for deep development of the "eight half inches 6 blades and PDC bits." Compared with the introduction of the wood drill bit, "independent research" to get rid of a lot of technical constraints, not only reduces costs, but also can better adjust the masonry drill bit designed for different lithology, and improve the hydraulic rotary percussion instrument compatibility. "First collaboration," compared with the previous trip wood drill bit footage has increased by 10.4 times, equivalent to savings from the wood drill biting eight times, and from wood Drilling Tools Quantou into Denglouku open until three vertical wells completed two tools segment wood drill biting, PDC wood drill bit bit only showing slight wear, its reliability has been fully validated.
