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  • Pump Volumetric Efficiency - an overview |

    If the volume leaked across the subsurface pump is known or calculated (see Section 4.5.2), then pump efficiency can be found from the following formula: (4.91) η vol = Q o + Q w Q o B o + Q w B w + q s

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  • Drilling Fluids Calculations For Drilling & Mud

    2012-1-20 · The overall efficiency of a centrifugal pump is simply the ratio of the water (output) power to the shaft (input) power and is illustrated by the equation below: E f = P W P S Where:

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  • Formulas and Calculations for Drilling Operations, 2nd ...

    Check the pump pressure at half the normal drilling rate and record the pressure as the SRP at this pump rate. 2. When a kick occurs, shut in the well. 3. Record the SIDPP, SICP, and the pit volume increase (kick size). 4. Calculate from Section 1.5.3: a. The new mud weight (W 2). b. The initial circulating pressure (ICP). c.

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  • Pump Efficiency—What Is Efficiency?

    Pump Speed (rpm) = 231 x pump flow rate (gpm) pump displacement (cu ins/rev) Pump Horsepower (hp) = flow rate (gpm) x pressure (psi) 1,714 x pump efficiency factor (Can also use horsepower (hp) = torque (in lbs) x pump speed (rpm) 63,025) Pump Torque (in lbs) = pressure (psi) x pump displacement (cu ins/rev) 6.28

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  • Pump Rate - an overview | ScienceDirect Topics

    2013-7-23 · Capacities of the pipe, annular capacity, and annular volume can be calculated using the following equations. The linear capacity of the pipe is C,=-^-bbl/ft, (1.1) ' 808.5 where A is a cross-sectional area of the inside pipe in square inches and equals 0.7854 x. Dj.

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  • Basic Hydraulic Formulas | Flodraulic Group

    Weight Up Formula. OWR Adjustment. Hydrostatic Pressure - Unknown Pressure. Hydrostatic Pressure - Unknown Mud Weight. Lgs For Freshwater, Unweighted Mud. Mud Blending. Weight Up/down Increasing Volume. Weight Up/down Same Volume. Pump Output.

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  • Drilling Fluids Calculations For Drilling & Mud

    2021-1-5 · Pump output volume = that volume adjusted for pump efficiency. Duplex pumps have an approximate efficiency of 85–95%, whereas triplex pumps have an approximate efficiency of 90–98%. The following two drilling equations which is used by mud engineer calculate pump output Q, at 100% volumetric efficiency.

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  • Pump Design Equations Formulas Calculator Total Head

    pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity: References - Books: 1) …

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  • Formulas and Calculations for Drilling Operations, 2nd ...

    Presented in an easy-to-use format, this second edition of Formulas and Calculations for Drilling Operations is a quick reference for day-to-day work out on the rig. It also serves as a handy study guide for drilling and well control certification courses. Virtually all the mathematics required on a drilling rig is here in one convenient source, including formulas for pressure gradient ...

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  • Optimization of Operating Parameters for Minimum ...

    2011-1-1 · Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters ...

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  • Wellsite math - AAPG Wiki

    2016-2-18 · Example: If the triplex pump previously discussed was operating at 95% volumetric efficiency at 98 strokes/min, the following calculations can be made: Circulation or lag time Bottoms-up circulation, or lag time , is the time for samples or gas created at the bit to arrive at the surface (via the drilling …

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  • Conversion: Pump Output for Triplex Pumps ... - King

    Conversion: Pump Output for Triplex Pumps in Gallons Per Minute. Calculation Instructions. General Formula: Triplex Pump Output in gpm = [3 * (diameter 2 * 0.7854) * Stroke length] 0.00411 * strokes per minute. Example: Pump output = 90% efficiency. Liner size = 6.5 inch diameter by 12 inch stroke length. Strokes per minute = 90. To solve:

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  • Drilling mechanics and performance - IADC.org

    2020-2-2 · DRILLING PRACTICES DP-1 IADC Drilling Manual Drilling mechanics and performance The drill rate that can be achieved with a specific bit is de-termined by the aggressiveness of its design, the weight on bit (WOB) applied, the rotations per minute (RPM) and the rock strength. When the RPM or WOB are increased, the

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  • ESP system selection and performance calculations -

    2016-1-19 · Normally, the larger-diameter pump and motor are less expensive and operate at higher efficiencies. When the well’s capacity is not known, or cannot be closely estimated, a pump with a 'steep' characteristic curve should be chosen. If the desired volume falls at a point where two pump types have approximately equal efficiency, choose the pump ...

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  • Pump Output - Triplex

    2014-8-8 · The Triplex Pump Output per Stroke calculator computes the number of barrels (bbl) per stroke produced by a triplex pump.. INSTRUCTIONS: Choose units and enter the following: (D) This is the Diameter of the Liner.(S) This is the Stroke length(EFC) This is the percent efficiencyPump Output per Stroke (PO): The calculator returns the pump output per stroke in barrels (bbl).

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  • (PDF) Procedure for Conducting Pumping Tests

    The basic principle of a pumping test is that if we pump water from a well and measure the pumping rate and the drawdown in the well, then substitute these measurements into an appropriate formula ...

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  • Pump Efficiency—What Is Efficiency?

    2012-1-20 · Editor's Note: This is the first in a six-part series on centrifugal pump efficiency. For other articles in this series, click Centrifugal Pump Efficiency series.. In this multi-part series, we will investigate several aspects of centrifugal pump efficiency.First, I will define efficiency and give some examples.

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  • Formulas and Calculations for Drilling Operations, 2nd ...

    Presented in an easy-to-use format, this second edition of Formulas and Calculations for Drilling Operations is a quick reference for day-to-day work out on the rig. It also serves as a handy study guide for drilling and well control certification courses. Virtually all the mathematics required on a drilling rig is here in one convenient source, including formulas for pressure gradient ...

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  • Minimum Efficiency Index: testing its performance -

    2017-5-2 · If Standard EN 16480 were used, the pump efficiency curves might stand over the 'house of efficiency' for three flow rates Q PL =0.85Q BEP, Q BEP and Q OL =1.1Q BEP, with an efficiency in the Q OL point larger than 0.985 ? BEP. It is evident from Figure 5 that the efficiency collapses immediately after the BEP point because BEP flow rate is in ...

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  • Equations correct centrifugal pump curves for

    2000-5-29 · Equations that replace diagrams can correct centrifugal-pump performance curves for highly viscous liquid. These equations are based on a widely used and generally accepted procedure of the ...

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  • HOW TO CALCULATE PRESSURE ANYWHERE IN A PUMP

    2008-4-20 · Calculating the pump total head sometimes involves calculating the pressure in different parts of the system. For example, you may need to ensure that a given piece of equipment has a certain pressure level at its inlet to ensure proper operation.

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  • Pump Calculator Spreadsheet | ITACA

    This spreadsheet allows the user to find the pump power requirement (Watts or Brake Horse Power) for various feeder pipe diameters (in) and given a known flow rate (LPS), pipe length (m) and head (m) and then select a suitable pump based upon available pump characteristic data.

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  • Some Effects of Operating Pumps Away from Best

    2013-2-20 · The Best Efficiency Point is defined as the flow at which the pump operates at the highest or optimum efficiency for a given impeller diameter. When we operate a pump at flows greater than or less than the flow designated by the BEP, we call this “operating pumps away from the Best Efficiency Point”.

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  • Submersible Pump : Working Principle, Types and Its ...

    2020-1-13 · The pump is a mechanical device used to lift water from a low level to high (or) low-pressure region to the high-pressure region. The main function of the pump is to change the energy from mechanical to liquid flow. The received energy from the liquid will be utilized to lift pressure.

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  • Drill bit hydraulics - PetroWiki

    2016-1-19 · The general formula for fluid velocity is where v = velocity (ft/min or m/min), q = flow rate (gal/min or L/min), and A = area of flow (ft 2 or m 2 ). The average velocity of a drilling fluid passing through a bit ’ s jet nozzles is derived from the fluid velocity equation: where v j = average jet velocity of bit nozzles (ft/sec or m/s) and A ...

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  • The Defining Series: Rod Pump Systems | Schlumberger

    The standing valve closes at the end of the upward stroke (middle, right). As the plunger travels down, the pump chamber pressure increases, pushing the ball in the traveling valve off its seat. This action allows the formation fluid to flow from the pump chamber …

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  • Determining Hydraulic Pump Condition Using

    2021-5-8 · Determining Pump Efficiency. When calculating the volumetric efficiency of a variable displacement pump, internal leakage must be expressed as a constant. Consider this example: I was recently asked to give a second opinion on the condition of a large, variable displacement pump. My client had been advised that its volumetric efficiency was ...

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  • Minimum Efficiency Index: testing its performance -

    2017-5-2 · If Standard EN 16480 were used, the pump efficiency curves might stand over the 'house of efficiency' for three flow rates Q PL =0.85Q BEP, Q BEP and Q OL =1.1Q BEP, with an efficiency in the Q OL point larger than 0.985 ? BEP. It is evident from Figure 5 that the efficiency collapses immediately after the BEP point because BEP flow rate is in ...

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  • Hydraulic Calculations and Formulas - Hydraulics Online

    Example: if a pump delivers 180 litres/minute and the pressure is 250 bar, then the hydraulic calculation for prime mover power of the pump is: Power = (250 x 180) 500 = 90 kW ** ** based upon 100% efficiency; 90% efficiency would equate to 90 0.9 = 100kW. This would always depend on the type of pump being used, i.e. gear, vane or piston etc.

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  • Optimization of Operating Parameters for Minimum ...

    2011-1-1 · Efficiency in drilling is measured by Mechanical Specific Energy (MSE). MSE is the measure of the amount of energy input required to remove a unit volume of rock, expressed in units of energy input divided by volume removed. It can be expressed mathematically in terms of controllable parameters; Weight on Bit, Torque, Rate of Penetration, and ...

    Get Price
  • Pump Calculator Spreadsheet | ITACA

    This spreadsheet allows the user to find the pump power requirement (Watts or Brake Horse Power) for various feeder pipe diameters (in) and given a known flow rate (LPS), pipe length (m) and head (m) and then select a suitable pump based upon available pump characteristic data.

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  • Weight-Up Calculation with Barite

    2019-11-14 · Rule of Thumb: For Weighted Drilling Fluids up to 12 lbs./gal using Barite. For every 140 pounds of Barite added to 100 gallons (U.S.) the weight will rise 1 lb/gal Prior to weighting up fluid the Funnel Viscosity must be raised with AQUAGEL® or QUIK-GEL® to four times the final mud weight. Duplex & Triplex Mud Pump Calculations

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  • What is Pump Capacity? - Definition from

    2017-9-30 · For example, in horizontal directional drilling and microtunneling projects, drilling mud must be continuously supplied to the drilling head in accordance with soil conditions. If the supply of fluid is too low, (i.e., the pump does not have enough capacity to deliver the right amount of drilling mud,) the duration of drilling operations can ...

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  • Hydraulic Output Torque Calculator, Output Torque

    Motor Efficiency, for hydraulic motors this is in the range 0.85-0.95. Displacement Vg, sizes for hydraulic motors range from 5cm3 to 250cm3; Then press M to calculate, this will be shown in the result box. If the required Output Torque is known but the motor has yet to …

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  • The Fundamentals of Downhole Pump Designs in Oil

    The fluid column inside the tubing helps to constantly support the pump barrel; with the reduction in differential pressure, the pump has improved efficiency and a longer pump life. A common disadvantage to this style of insert pump is sand tends to settle around the barrel and the scale can make it difficult to pull the pump.

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  • FINISHED FLUIDS – AwSUM Outcomes

    MTL & MTLX – Triplex Pump Lubricant is a high-performance lubricant designed for use in demanding applications where high efficiency fluid pumping is required. This lubricant is engineered for efficiency resulting in reduced downtime and considerable cost savings. Available in standard and extreme cold temperature grades.

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  • Franklin Park, IL 60131 VALUABLE PUMP FORMULAS

    2011-2-10 · PSI x 6.9 3960 x Pump Efficiency=kPa ATM x 14.7 =PSI ATM x 33.9 =Feet of Water ATM x 760 =mm Hg kg/cm2 x 1.42 =PSI Meters of Water x 1.42 into the pump suction.=PSI Bar x 14.5 =PSI Inches of Hg x 0.491 =PSI Velocity in Feet GPM x 0.321 per Second: Pipe Area in Square Inches Typically, keep pipe velocities around 10 ft/second for good results.

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  • Hydraulic Calculations and Formulas - Hydraulics Online

    Example: if a pump delivers 180 litres/minute and the pressure is 250 bar, then the hydraulic calculation for prime mover power of the pump is: Power = (250 x 180) 500 = 90 kW ** ** based upon 100% efficiency; 90% efficiency would equate to 90 0.9 = 100kW. This would always depend on the type of pump being used, i.e. gear, vane or piston etc.

    Get Price
  • Basic Hydraulic Formulas | Flodraulic Group

    Estimating pump drive horsepower: 1 hp of input drive for each 1 gpm at 1,500 psi pump output. Horsepower when idling a pump: an idle and unloaded pump will require about 5% of its full rate hp. Reservoir capacity (GALS) = length (INS) x width (INS) x height (INS) 231

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  • Hydraulic Output Power Calculation, Output Power ...

    Pump Efficiency, for hydraulic power pack pumps this is in the range 0.85-0.95. Power N (kW), this can range from 0.25 to 55kW for Hydraproducts power pack range. Then press P to calculate, this will be shown in the result box. In order to calculate the hydraulic Pump Flow rate Q (l/min), you must enter the following figures:-

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  • (PDF) Calculation and Design of the Heat Pumps

    The three key targets of the EU 2020 climate and energy package are: 20% cut in greenhouse gas emissions (compared to 1990), 20% of EU energy from renewable energy sources (RES) and 20% ...

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  • What is Pump Capacity? - Definition from

    2017-9-30 · For example, in horizontal directional drilling and microtunneling projects, drilling mud must be continuously supplied to the drilling head in accordance with soil conditions. If the supply of fluid is too low, (i.e., the pump does not have enough capacity to deliver the right amount of drilling mud,) the duration of drilling operations can ...

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  • How to Find Your GPM & PSI – Pumps and/or Wells

    2021-5-11 · Now for the flow formula: Multiply the pump Horsepower times 2178 (a constant value, see note at bottom of this page) and then divide by the Total Pressure Head in feet. Horsepower x 2178 Total Pressure Head (feet) = GPM (the “Design Flow”) So for the first example above with a 2 h.p. electric pump:

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  • Reciprocating pump - construction, working,

    2021-4-26 · Reciprocating pump is a mechanical device which is used to deliver (or pump) the liquid with the help of a piston which reciprocates inside an enclosed cylinder. The Reciprocating pump is also called a positive displacement pump because it actually does work on the liquid by compressing it.

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  • The Fundamentals of Downhole Pump Designs in Oil

    The fluid column inside the tubing helps to constantly support the pump barrel; with the reduction in differential pressure, the pump has improved efficiency and a longer pump life. A common disadvantage to this style of insert pump is sand tends to settle around the barrel and the scale can make it difficult to pull the pump.

    Get Price
  • Problem Solving - Centrifugal Pumps

    2017-7-12 · If pump is operating in reverse rotation, use motor manufacturers instructions to ensure appropriate direction. 2.1.3 Valves are closed or there is an obstruction in the suction or discharge pipework Any obstruction in the pipework and/or valves being closed can significantly increase pressure. An

    Get Price
  • Franklin Park, IL 60131 VALUABLE PUMP FORMULAS

    2011-2-10 · PSI x 6.9 3960 x Pump Efficiency=kPa ATM x 14.7 =PSI ATM x 33.9 =Feet of Water ATM x 760 =mm Hg kg/cm2 x 1.42 =PSI Meters of Water x 1.42 into the pump suction.=PSI Bar x 14.5 =PSI Inches of Hg x 0.491 =PSI Velocity in Feet GPM x 0.321 per Second: Pipe Area in Square Inches Typically, keep pipe velocities around 10 ft/second for good results.

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  • Basic Hydraulic Formulas | Flodraulic Group

    Estimating pump drive horsepower: 1 hp of input drive for each 1 gpm at 1,500 psi pump output. Horsepower when idling a pump: an idle and unloaded pump will require about 5% of its full rate hp. Reservoir capacity (GALS) = length (INS) x width (INS) x height (INS) 231

    Get Price
  • Irrigation Pumping Plant Efficiency - 4.712 - Extension

    A pump efficiency test finds that the current overall efficiency is only 40 percent and that the total pumping head is 300 feet. What are the potential savings from improving the pump efficiency to 65 percent if the cost of electricity is 0.08 kWh? From Table …

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  • Water Data Formulas - ChipBLASTER

    2018-9-11 · Cost to Pump Water - Electric per hour = gpm x Head in feet x 0.746 x Rate per KWH 3960 x Pump Efficiency Electric Motor Efficiency (70% Pump and 90% Motor efficiency is a good average)

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  • DETERMINING WELL EFFICIENCY BY MULTIPLE STEP

    2015-1-15 · eliminated and the efficiency of wells increased with the consequent prevention of much needless waste of pumping energy and the proper selection of pump and motor to give optimum performance throughout the life of the well. This paper describes a procedure for evaluating the data of a multiple step-drawdown test.

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  • Drillmaster Report: Maintaining the Life of an HDD

    2012-2-14 · Pump systems play an integral role in the success of any horizontal directional drilling (HDD) project. Charged with circulating drilling fluid — most commonly referred to as mud — throughout the bore path, the mud pump and fluid have several important functions; most notably to facilitate the removal of spoil while helping maintain the integrity of the bore.

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  • Drilling Fluid Solids Control

    2020-12-31 · Today’s shale shakers must be capable of maintaining optimum fluid properties to maximize drilling efficiency.. Joe Bacho Define Shale Shaker. Shale shakers are components of the solids control systems.Shale shaker mainly used in the oil and gas drilling industry. Shale shaker is the first phase of a solids control system on a drilling rig, and are used to remove large solids (cuttings) from ...

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  • Model 14-P-220 triPlex Mud PuMP - Rotating Right

    2021-3-3 · National Oilwell Varco’s 14-P-220 Mud Pump is rated at 2200 input horsepower (1640 kW) at 105 strokes per minute, with a 14-inch (355.6 mm) stroke. Multiple liner sizes allow pressures and volumes to handle circulation requirements in deep drilling applications. Model 14-P-220 triPlex Mud PuMP Specifications Dimensions

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  • Problem Solving - Centrifugal Pumps

    2017-7-12 · If pump is operating in reverse rotation, use motor manufacturers instructions to ensure appropriate direction. 2.1.3 Valves are closed or there is an obstruction in the suction or discharge pipework Any obstruction in the pipework and/or valves being closed can significantly increase pressure. An

    Get Price
  • Using Specific Capacity to Monitor Well Performance ...

    2017-9-2 · Because it usually requires very little effort to collect the data necessary for the calculation of Specific Capacity, it is an extremely useful measurement that can be used to identify declines in well performance, which allows for planning an optimal well rehabilitation schedule. The Specific Capacity of a well is the pumping rate (gpm) (Q) […]

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