Volume Two provides detailed descriptions and case studies of the several technologies developed and widely used in Russia. There are directional drilling, deep and ultra-deep well construction, underbalanced drilling, rotary-turbine drills, underreamers, and retractable drill bits.

Key Features and Benefits:

• Valuable Russian drilling techniques translated into English
• An excellent historical account of the development of drilling technologies in the FSU

• Preface
• Acknowledgments
• Development of directional, cluster, and horizontal drilling technology using downhole motors
• Deep and ultra-deep well drilling technology in the FSU
• Development of well drilling and completion technology using air, aerated mud, and foam drilling methods
• Retractable drillbit technology�drilling without pulling out drillpipe
• Acronyms