Affiliation:
1. Anhui University of Science and Technology
2. CASC
Abstract
PDC anchor bit has the very good rock fragmentation abilities with high penetration rate and long drilling time,which makes the drilling efficiency highly improved and the economic benefit remarkably increased.Now PDC anchor bit has been widely used in drilling field.But for the reason that it is sensitive to the formation characteristics and working conditions,it doesn’t achieve good performance in homogeneous formations such as conglomerate and interbeded sections.In order to reach the goal of enlarging the scope of PDC anchor bit application in oilfields,it is necessary to study the breakage mechanism in conglomerate formations and design the PDC anchor bit optimally.
Publisher
Trans Tech Publications, Ltd.
Reference5 articles.
1. Tetsuji. Ohno, etc. Cost reduction of polycrystalline diamond compact bits through improve durability. Geothermics, 31 (2002) 245-262.
2. Liu H. Y., etc. Numerical simulation of the rock fragmentation Process induced by indenters[J]. Int. J. Rock Mech. Min. Sci., 2002, 36: 10-15.
3. H. Geoffroy; D. Nguyen Minh. Study on interaction between rocks and worn PDC'S cutter. Int.J. Rock Mech. & Min. Sci. Vol. 34, No. 3-4, (1997).
4. D. Nguyen Minh, etc. Evaluation of Drilling Parameters of a PDC Bit. Int. J, Rock Mech. Min. Sci. Vol. 35, No. 4/5, pp.578-580, Thesis No. 109, (1998).
5. John R. Smith, Jeffrey B. Lund, Robert K. Galloway. Friction on PDC Cutters at High Normal Stress. Journal of Energy Resources Technology. SEPTEMBER 2002, Vol. 124: 146-153.