TY  - SER
AU  - Andreson,B.A.
AU  - Maas,A.F.
AU  - Isaenko,O.G.
AU  - Penkov,A.I.
AU  - Maas,A.F.
AU  - Isaenko,O.G.
AU  - Penkov,A.I.
TI  - Successfully drill unstable formations: A complex inhibitor drilling mud (CIDM) has allowed Russian operators to complete former problem wells
ER  -