Pipes Functions

Pressure along of the drill string

Pressure along of the drill string

Surge

Computes surge pressure along the specified well with the specified pipe speed)

og.model.surge.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'Pa', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Pressure Surge (Pa) vs Depth

Swab

Computes swab pressure along the specified well with the specified pipe speed

og.model.swab.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'Pa', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Pressure Swab (Pa) vs Depth

Example Pipes:

--Swab ECD
=> og.model.swab.pressure(newmap("wellId","11","pipeSpeed", 0.05)) every batch
=> @for => @yield => {swab.pressure} as Swab_pressure, depth

--Surge ECD
=> og.model.surge.pressure(newmap("wellId","11","pipeSpeed", 0.05)) every batch
=> @for => @yield => {surge.pressure} as Surge_pressure, depth

Equivalent Pressure along the drill string

Surge and Swab ECD along of the drill string

Swab

Computes swab density along with the specified well with the specified pipe speed

og.model.swab.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'kg/m3', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: ECD swab (kg/m3) vs Depth

Surge

Computes surge density along with the specified well with the specified pipe speed

og.model.surge.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'kg/m3', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: ECD surge (kg/m3) vs Depth

ECD and Pressure at a given depth

Surge

Computes surge equivalent circulating density at given depth

og.model.surge.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'kg/m3', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean,
                "atDepth", value_m)
)

Output: ECD surge (kg/m3)

Swab

Computes swab equivalent circulating density at given depth

og.model.swab.pressure(
         newmap("wellId", "{well_id}",  
                "bitDepth", value_m,
                "pipeSpeed", value_m/s, 
                "computationUom", 'kg/m3', 
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean,
                "atDepth", value_m)
)

Output: ECD swab (kg/m3)

Example Pipes:

--Swab ECD

=>og.model.swab.pressure(
           newmap('wellId','9', 
                  'computationUom', 'kg/m3', 
                  'pipeSpeed', 0.01, 
                  'bitDepth', 1000, 
                  'minSectionLength', 250))->result:seq at the end
=> @chain
=> {swab.pressure}#curve_unit_convert(kg/m3,'lbm/galUS') as {Swab}, depth#curve_unit_convert('m',@@depthOutputUnit) as depth

--Swab ECD
=>og.model.surge.pressure(
           newmap('wellId','9', 
                  'computationUom', 'kg/m3', 
                  'pipeSpeed', 0.01, 
                   'bitDepth', 1000, 
                   'minSectionLength', 250))->result:seq at the end
=> @chain
=> {swab.pressure}#curve_unit_convert(kg/m3,'lbm/galUS') as {Surge}, depth#curve_unit_convert('m',@@depthOutputUnit) as depth

Maximum running speed

Max trip velocity vs Depth

Surge

Computes maximum pipe speed profile on surge along the specified well

og.model.surge.maxPipeSpeed(
         newmap("wellId", "{well_id}",  
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Max Surge Speed (m/s) vs Depth

PARAMETER | TYPE | DOMAIN | REQUIRED? | DEFAULT

wellId | String | Integer Strings | Yes | ---

drillingSectionIndex | Integer | >= 0 | No | ---

bitDepth | Double | >= 0 | No | ---

atDepth | Double | >= 0 | No | ---

minSectionLength | Double | 0 <= x <= maxSectionLength | No | 0

maxSectionLength | Double | >= minSectionLength | No | Infinity

closedEnded | Boolean | {true, false} | No | true

depthLowerBound | Double | Reals | No | 0

bitStepSize | Double | > 0 | No | 20

Swab

Computes maximum pipe speed profile on swab along the specified well

og.model.swab.maxPipeSpeed(
         newmap("wellId", "{well_id}",  
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Max Swab Speed (m/s) vs Depth

Example Pipes:

=> og.model.swab.maxPipeSpeed(
      newmap("wellId", "11", 
             "depthLowerBound", 50, 
             "initialBitDepth", 1000, 
             "stepSize" 50))->result:seq at the end
=> @for => @yield => -{swab.maxPipeSpeed}# as {Max Swab Speed}, depth# as depth

=> og.model.surge.maxPipeSpeed(
       newmap("wellId", "11", 
              "depthLowerBound", 50, 
              "initialBitDepth", 1000, 
              "stepSize", 50))->result:seq at the end
=> @for => @yield => -{swab.maxPipeSpeed}# as {Max surge Speed}, depth# as depth

Maximum and Minimum trip - ECD

Surge

Computes surge equivalent circulating density in drill string trip

og.model.surge.tripLimits(
         newmap("wellId", "{well_id}",  
                "pipeSpeed", value_m/s,
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "computationUom", "kg/m3",
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Max and Min Surge ECD (kg/m3) vs Depth

Swab

Computes swab equivalent circulating density in drill string trip

og.model.swab.tripLimits(
         newmap("wellId", "{well_id}",  
                "pipeSpeed", value_m/s,
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "computationUom", "kg/m3",
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Maximum and Minimum trip - Pressure

Surge

Computes surge pressure in drill string trip

og.model.surge.tripLimits(
         newmap("wellId", "{well_id}",  
                "pipeSpeed", value_m/s,
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "computationUom", "Pa",
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Max and Min Surge Pressure (Pa) vs Depth

Swab

Computes swab pressure in drill string trip

og.model.swab.tripLimits(
         newmap("wellId", "{well_id}",  
                "pipeSpeed", value_m/s,
                "depthLowerBound", value_m,
                "initialBitDepth", value_m, 
                "computationUom", "Pa",
                "bitStepSize", value_m,
                "maxSectionLength", value_m, 
                "minSectionLength", value_m,
                "closedEnded", boolean)
)

Output: Max and Min Swab Pressure (Pa) vs Depth

Input Parameters Description

Parameters

Description

unit

wellId

Well Id

String

computationUom

If ‘Pa’ output pressure or ‘kg/m3’ output is equivalent density

string

depthLowerBound

Bottom Depth (bit depth)

m

bitDepth

Casing Shoe depth

m

atDepth

Choose specific depth

m

bitStepSize

Step size length (discretization)

m

pipeSpeed

Drill string or casing speed

m/s

minSectionLength

Minimum section length for integration

m

maxSectionLength

Maximum section length for integration

m

closedEnded

Close or open ended geometry. Default is true (close ended)

boolean

sectionIndex

Set the index of the section. Default is empty, uses the last section

Number (int)

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