Shaped Cone Single Cone Drill Bit Movement And Flow Field Analysis

With the development of the new technology of drilling, the exploitation of deep well and over-deep well needs small size bit. Because one-cone bit has the advantages of the three-cone bit and the PDC bit and it makes for their disadvantages, so the one-cone bit is the important chose to drill the small well. But now the use of the spherical one-cone bit shows that the teeth are abrade heavily in advance, which affects the velocity and life of the bit. As a result it is necessary to design new type of one-cone bit according to the quality of the rock.To resolve the above problems we have designed a singular one-cone bit. We analyzed the bit to understand the mechanism, the result of breaking the rock,the characters of the fluid field. By means of the software of Pro/E we studied the movement of the bit and obtained some data reports about different parameter bit. In the environment of Visual Basic the trace program can compute the well-bottom outline. It also can draw the trace and the velocity curve that the teeth scrape the well bottom. We designed five kinds of fluid pipeline and nozzle position and simulated the fluid field to make the bit clear. After comparing the simulation results we chose one better construction of fluid pipeline and nozzle position.