4Martin M D. Managed pressure drilling techniques and tools [D]. United States,Bryan:Texas A & M University,2006.
5Santos H,Catak E, Kinder J. First field applications of microflux control show very positive surprises[R]. IADC/SPE 108333,2007.
6SaponjaJ, Adeleye A, Hucik B. Managed pressure drilling (MPD) field trials demonstrate technology value[R]. IADC/ SPE 98787,2006.
7van Riet E J, Reitsma D, Vandecraen B. Development and tes ting of a fully automated system to accurately control downhole pressure during drilling operations [R]. SPE/IADC 85310, 2003.
8Van Riet E J, Reitsma D, Vandecraen B. Development and Testing of a Fully Automated System to Accurately Control Downhole Pressure During Drilling Operations[G]. SPE/IADC 85310,2003.