# Pipes Functions ## **Steady State Hole Cleaning** ![Hole Cleaning Index, Solid concentration and Bed Relative Height vs Depth - Steady State](https://lh6.googleusercontent.com/QECQnyTe4fxy1xF7gQiLHBKs3U8Sf544rrrWeYwgCrtEORDQq5OzLhle0WKJ3O1pljcL0ucaohSUJmukcPvbcVuY8OGTDWC2aLRdBYKOg_qe3xlUk9AphZuR0_2bCJxDbabwz4Zt) Compute cuttings transport in steady-state ```groovy og.model.cuttingstransport.steadyState( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` **Output:** * **Bed Relative Height (0-1),** * **Transport Ratio (0-100),** * **cuttings Carrying Index (0-1)** * **Suspension Solids Concentration (m3/m3)** * **vs Depth (m)** * **Lag time (s)** ### **Bed Relative Height** Bed Relative Height = Bed Height / Annular Hydraulic Diameter Calculate bed relative heights the annular depths ```groovy og.model.cuttingstransport.bedRelativeHeight( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Suspension Solids Concentration** Calculate suspension solid concentration the annular depths ```javascript og.model.cuttingstransport.suspensionSolidsConcentration( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Total Solids Concentration** Calculate total solid concentration of the annular depths (suspension + solid bed) ```javascript og.model.cuttingstransport.totalSolidsConcentration( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Suspension Solids Velocity** Calculate suspension solid velocities along the annular depths ```javascript og.model.cuttingstransport.suspensionSolidsVelocity( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Suspension Fluid Velocity (Annular Velocity)** Calculate suspension fluid velocities along the annular depths ```javascript og.model.cuttingstransport.suspensionFluidVelocity( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Transport Ratio** Transport Ratio = Suspension Solid Velocity/Suspension Fluid Velocity Calculate transport ratio along the annular depths ```javascript og.model.cuttingstransport.transportRatio( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ### **Minimal Flow For Efficient Cleaning** Calculate minimum flow for efficient cleaning ```javascript og.model.cuttingstransport.minimalFlowForEfficientCleaning( newmap("wellId", "{well_id}", "bitDepth", value_m, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s "maxTotalCuttingsConcentration", value_m3/m3) ) ``` ### **Maximum ROP For Efficient Cleaning** Calculate maximum ROP for Efficient Cleaning ```javascript og.model.cuttingstransport.maximumRopForEfficientCleaning( newmap("wellId", "{well_id}", "bitDepth", value_m, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s, "maxTotalCuttingsConcentration", value_m3/m3 ) ) ``` ### **Lag time (Cuttings)** Calculate the lag time using the cuttings calculator. **Example Pipes:** ```javascript og.model.cuttingstransport.lagTime( newmap("wellId", "{well_id}", "bitDepth", value_m, "flowRate", value_m3/s, "drillPipeRotation", value_rad/s, "rateOfPenetration", value_m/s, "cuttingsAverageSize", value_m, "cuttingsDensity", value_kg/m3, "maxCellLength", value_m, "minCellLength", value_m, "boosterMeasuredDepth", value_m, "boosterFlowRate", value_m3/s) ) ``` ![](https://lh5.googleusercontent.com/CDIN9wP3ITMMjc0JyjhL8nNVTNKCXdxLRY5-Pw8w2ZsUt5CjR1mSCB9qcMN_r0ZJ9HReLSJdMeYLc6P3ueppvVBHxdr6jqW2KoN1xf2MK_-BLbevGwZ0tZLa7mx72o5nAu1SYzXx) ## **Input Parameters Description** | **Parameters** | **Description** | **unit** | | ------------------------ | ---------------------------------------- | ---------- | | **wellId** | **Well Id** | **String** | | **rateOfPenetration** | **Rate of Penetration** | **m/s** | | **flowRate** | **Flow Rate or pump flow in** | **m3/s** | | **cuttingsAverageSize** | **Particle Diameter** | **m** | | **cuttingsDensity** | **Solid density (cuttings)** | **kg/m3** | | **maxTailorLength** | | **m** | | **minCellLength** | **Size length of cell (discretization)** | **m** | | **boosterMeasuredDepth** | **Measured depth of booster** | **m MD** | | **boosterFlowRate** | **Booster flow rate** | **m3/s** | --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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