Overview

DrillExpert Hydraulics is a software of drilling hydraulics analysis for extended reach well, which provides accurate model for calculating circulation pressure loss, wellbore pressure profile, drilling hydraulics parameters, and which could be used to pre-drilling design, real-time drilling monitor and post-drilling analysis for extended reach well, directional well, horizontal well and multi-lateral well.

Key Features

• Any well type, any well trajectory, any drilling string assemblage with or without riser.
• Hydraulics simulation for a continuous wellbore interval.
• Wellbore pressure profile and pressure loss simulation considering drilling liquid rheology, flow regime, drilling pipe rotation and eccentric movement, joint, cuttings bed and downhole motor.
• Hydraulics parameter design considering theoretical maximum flow rate based on cuttings carrying, pumping limit, drilling fluid density window.

Key Functions

1. Pre-drilling hydraulics design
   The software has established theoretical minimum and maximum flow rate models based on Non-Newtonian multi-flow model, cuttings carrying capacity of vertical section, inclined section and horizontal section of wellbore, hydraulic power limit and drilling fluid density window, which could be used to design hydraulics parameter of drilling extended reach well under different optimized objects, drilling parameter, hydraulic power, mud property, flow rate and bit nozzle.
2. Real-time drilling hydraulics monitor
   Real-time drilling hydraulics analysis has been provided to simulate the distribution of annular pressure, drilling fluid density, ECD and cuttings bed, and calculate theoretical minimum flowback rate and flow rate etc.
3. Hydraulics analysis
   Based on pre-drilling design and real-time monitoring result, comparison analysis of different hydraulics parameter assembles could easily been done for reducing drilling risk:
   • Hydraulics parameter: mud property, ECD, circulation pressure loss, cuttings bed distribution and height, theoretical minimum and maximum flow rate, wave pressure, power limit and well flushing time.
   • Drilling parameter: drilling fluid density, flow rate, viscosity, drilling speed and drill pipe rotary.
   • Wellbore cleanness: excellent, good, fair, poor.