Improvements in bottom hole cleaning for large diameter rotary drilling bits
By: by James Harold Allen.
Published: 1977
Language: eng
Format: Microform
Number of pages: 274
Notes: Microfilm. Ann Arbor, Mich. : University Microfilms International, 1977. 1 microfilm reel ; 35 mm.
Thesis (Ph. D.)--Kensington University, 1977.