| CPC E21B 33/14 (2013.01) [E21B 41/00 (2013.01); E21B 47/005 (2020.05); E21B 47/06 (2013.01); E21B 47/10 (2013.01); G06F 30/20 (2020.01)] | 19 Claims |
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1. A cementing system, comprising:
a rig pump for passing drilling fluid, water, and displacement fluid to a wellbore, via a first flowline connecting the rig pump to a wellhead of the wellbore, according to a well plan;
a cement pump for passing first and second cement slurries to the wellbore via a second flowline connecting the cement pump to the wellhead;
first and second densitometers, first and second flow meters, and first and second pressure gauges for measuring respective densities, flow rates, and pressures of fluids in the respective first and second flowlines;
a third densitometer and a third flow meter for measuring a respective density and flow rate of a fluid in a return flowline receiving fluid from the wellbore;
a cementing component comprising a processor operable with a surface operating device to perform pumping sequences according to a cementing program of the well plan, wherein:
the cementing component graphically displays in real-time the densities, the flow rates, and the pressures measured by each of the densitometers, the flow meters, and the pressure gauges;
the cementing program is at least partially based on pre-simulations performed prior to performing the cementing program, wherein the pre-simulations are based on geometry of the wellbore, properties of the drilling fluid, the water, the displacement fluid, the first and second cement slurries, and equipment data, wherein the equipment data comprises dimensions, specifications, client data, and measurements; and
the cementing component performs real-time hydraulic simulations using real-time densities, flow rates, and pressures measured by each of the densitometers, the flow meters, and the pressure gauges, and wherein the cementing component comprises a wellbore schematic display graphically depicting, in real-time:
the first flowline connecting the rig pump to the wellhead;
the second flowline connecting the cement pump to the wellhead;
the pumping sequences according to the cementing program of the well plan;
estimated fluid interface positions in the wellbore;
with respect to fluid previously and currently being pumped into the wellbore:
results of the pre-simulations for one or more of the measured fluid densities, flow rates, and pressures;
results of the real-time simulations for one or more of the measured fluid densities, flow rates, and pressures; and
predetermined wellbore limits for the displayed one or more of the measured fluid densities, flow rates, and pressures; and
a time slider configured to allow users to go back and see where fluids were positioned in the wellbore at any previous time, wherein by moving the time slider back and forth, a specific time during the cementing program may be selected to see corresponding measurements at that specific time, wherein the graphical depiction of the first flowline and the second flowline is shown on the wellbore schematic display positioned above the graphical depiction of the estimated fluid interface positions in the wellbore, and wherein the graphical depiction of the estimated fluid interface positions in the wellbore is shown on the wellbore schematic display positioned above the graphical depiction of the time slider.
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