TY  - GEN
AU  - Guo, Boyun.                  
AU  - Ghalambor,Ali
TI  - Gas volume requirements for underbalanced drilling: deviated holes 
SN  - 0878148027
U1  - 622.3381 
PY  - 2002///
CY  - Tulsa, Okla.
PB  - PennWell Corp.,2002
KW  - Underbalanced drilling (Petroleum engineering)
N1  - distributer: Scientific home bookshop; Includes bibliographical references and index; catalogued by: wessam
ER  -