共 50 条
- [34] DEVELOPMENT OF NEW PDC BITS FOR DRILLING OF GEOTHERMAL WELLS .1. LABORATORY TESTING JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME, 1992, 114 (04): : 323 - 331
- [35] DEVELOPMENT OF NEW PDC BITS FOR DRILLING OF GEOTHERMAL WELLS .2. FIELD TESTING JOURNAL OF ENERGY RESOURCES TECHNOLOGY-TRANSACTIONS OF THE ASME, 1992, 114 (04): : 332 - 338
- [36] Metal sealed cone bits reduce costs in abrasive drilling Oil and Gas Journal, 1992, 90 (49): : 63 - 67