... in a horizontal wellbore. 19 03 2008 14 04 2009 26 03 2010 26 03 2010 hydraulic systems sediments Aerated mud drilling has been recognized as having many advantages over conventional mud drilling such as higher penetration rate, less formation damage, reduced lost circulation...

... by the Tiab’s Direct Synthesis Technique ,” J. Pet. Sci. Eng. 0920-4105 , 49 ( 1-2 ), pp. 1 – 21 . 10.1016/j.petrol.2005.07.001 23 09 2008 06 10 2009 21 01 2010 21 01 2010 fracture mechanics hydraulic systems Fracture asymmetry has been recognized for a long time...

... load is 300 kN , the equipped power of this rig is 45 kW , and the power of the ordinary one is 150 kW . This rig can recover the potential energy which is released by the oil pipestring when lowered. The hydraulic system of the hydraulic energy-recovering workover...

... laminar flow pipe flow turbulence rheology hydraulic systems polynomials oil drilling Hydraulics play an important function in many oil field operations, including drilling, completion, fracturing, acidizing, workover, and production. In the case of drilling, however, the role of hydraulics...

... September 2002 20 11 2002 oil technology water hydraulic systems pressure control computer software two-phase flow A schematic of a DWS well completion is shown in Fig. 1 . Typically, the well penetrates the oil-bearing zone and the underlying aquifer. Then, the well is dual...

... and formation. Therefore, hydraulic parameters must also be treated as transient. multiphase flow oil technology hydraulic systems pressure fluids heat transfer 01 February 1999 20 May 1999 24 May 2000 Contributed by the Petroleum Division and presented at the 20th Annual...

... technology hydraulic systems natural resources machining equipment evaluation petroleum industry The application of percussion drilling methods to hard rock results in the following advantages as compared to rotary drilling: 1) the impact loads at the bit inserts in percussion drilling...