mud pump calculations for sale
NOTE: Max RPM in the above equation varies according to type of pump, size of stroke, and other variables. Duplex pumps often run about 100 RPM Max. while triplex pumps will run somewhere between 100 RPM Max and 400 RPM Max.
I have a reciprocating pump and I know what my max rated rod load is (in foot pounds). I also know what size plunger size my pump has. What PSI will my pump produce?
Specific Gravity is used when sizing a centrifugal pump. Liquids with a specific gravity greater than 1.0 are heavier than water and conversely, liquids with a specific gravity lower than 1.0 are lighter weight than water and will generally float on water.
Single Acting Triplex pumps come with three cylinders and are commonly used for various applications requiring low to medium flow rates including mud pumping, cement pumping, salt water disposal, descaling, high pressure pumping, Frac pumping and pipeline systems for the Oil & Gas, Agriculture, Mining, Municipal and Manufacturing sectors. We have new, used and rebuilt API 674 triplex pumps of all leading manufacturers like Union, Gaso, Emsco, Apex and Wheatley.
Rig pump output, normally in volume per stroke, of mud pumps on the rig is one of important figures that we really need to know because we will use pump out put figures to calculate many parameters such as bottom up strokes, wash out depth, tracking drilling fluid, etc. In this post, you will learn how to calculate pump out put for triplex pump and duplex pump in bothOilfield and Metric Unit.
Learning about drilling fluids, mud pumps and conditioning equipment is required basic knowledge which personnel working on the rig must understand. In the old day, you may need to take a lot of time to learn this knowledge. Nowadays, Petroleum Extension Service publishes the book named “Drilling Fluids, Mud Pumps, and Conditioning Equipment” which will provide learners a lot of essential thing regarding drilling fluids, mud pumps and equipment. Today, I would like to review this book so you will know what inside and what you will you get from it.
Circulating systems on the drilling – function of drilling fluid and circulating system, hydraulic of mud circulating system, air circulating system, etc
Drilling mud– function of drilling mud, type of drilling mud used in drilling industry, composition of drilling mud, how to test drilling fluids, equipment for mud testing
Mud pumps – reciprocating pumps, configuration of Duplex and Triplex pumps, pump output, comparison of Triplex and Duplex pumps, operating and maintenance practices for the pumps
The book has the basic content with few simple calculations. It is good for new people who have less rig experience. It is not easy for less experience to understand everything in the oil field quickly; therefore, the book provides a lot of photos, drawings that will help learners to understand the content easily. You can see from the images which I capture from the book.
It’s time for piston mud pumps to enter the 21st century. Centerline Mud Pumps utilize common, industry-proven, and easily obtained fluid end parts. Designed to give you better flow capacity, pressure, size and weight advantages, that you won’t find anywhere else. Centerline Mud Pumps are built to exceed the most demanding specifications in the industry. These pumps are built to last.
Centerline Manufacturing is pleased to introduce their line of hydraulic drive mud pumps. Since 1983, Centerline Manufacturing has been involved in the design, manufacture, and production of drilling equipment, support equipment, and tooling for the water well industry. Our line of mud pumps include several new milestone technologies not found anywhere else in the industry.
Provides 150-180* GPM (Gallon Per Minute) of standard mud flow at 350 psi continuous. The 180 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.
Provides 300-360* GPM (Gallon Per Minute) of standard mud flow at 350 psi Continuous. The 360 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.
Provides 450-540* GPM (Gallon per Minute) of standard mud flow ar 350 psi Continuous. The 540 GPM is a provisional condition that requires the mud pressure to be below 275 psi and the hydraulic oil temperature below 165 degrees F.
New Jersey, United States,-This Double Acting Mud Pump Market research stud offers proper industry viewpoint, market size, growth, future trends and trading. All this are taken into consideration while preparing the market report with the forecast period from 2022 to 2029. This report contains a complete and generic market scenario along with the factors that may have a great effect on it. Market entrance methodologies, industrial processes chain structure and rate of growth of the global market all is expressed in this all-inclusive market report. Recently, many developments have taken place with regards to technology that drives the market to go across exponential progress paths.
This Double Acting Mud Pump market report also gives an overview of market criteria such as sales strategies, key players, and investments. Knowing the buying preferences of consumers is crucial for key players who want to introduce new products to the market. Primary key market players, consumer buying preferences, and sales methods are all covered in this Double Acting Mud Pump market report. This Double Acting Mud Pump market report also discusses the dynamic market"s expanding prospects and opportunities in the future. This type of market analysis allows for a fast assessment of the global market situation. The Double Acting Mud Pump market report offers useful information about the key contributors, company strategies, consumer preferences, and improvements in customer behavior. Furthermore, it provides an exact sales count as well as the customer"s buying patterns. The COVID-19 Pandemic has an effect on a wide range of industries.
National Oilwell Varco, Schlumberger, Gardner Denver, Weatherford International, Flowserve Corporation, Honghua Group, China National Petroleum, Trevi-Finanziaria Industriale, MhWirth, BenTech GmbH Drilling and Oilfield systems, American Block, White Star Pump, Ohara, Herrenknecht Vertical, Mud King Products
The Double Acting Mud Pump market is segmented as per the type of product, application, and geography. All of the segments of the Double Acting Mud Pump market are carefully analyzed based on their market share, CAGR, value and volume growth, and other important factors. The report also provides accurate estimations about the CAGR, revenue, production, sales, and other calculations for the Double Acting Mud Pump market. Each regional market is extensively studied in the report to explain why some regions are progressing at a high rate while others at a low rate. We have also provided Porter’s Five Forces and PESTLE analysis for a deeper study on the Double Acting Mud Pump market.
The Double Acting Mud Pump report provides information about the market area, which is further subdivided into sub-regions and countries/regions. In addition to the market share in each country and sub-region, this chapter of this report also contains information on profit opportunities. This chapter of the report mentions the market share and growth rate of each region, country and sub-region during the estimated period.
This approach works well but relying on a printed reference is not without the risk since the wrong value can still be selected from the fine print of a reference table, or the reference document can be damaged or lost (e.g., dropped in the mud pit) altogether.
As we consider the various calculations that enable us to determine the values of length, weight, pressure, volume, flow velocity, etc., we should remain mindful of the units of measure we’re dealing with. The groundwater industry uses units of measure that are somewhat intermingled with other units from associated disciplines such as engineering, surface water hydrology, and the oil and gas drilling industry.
The intermediate casing can be sealed using the pressure grouting technique (Figure 3) to pump cement slurry down through the drill pipe and out to the annulus through a float shoe (a drillable check valve connected to the base of the casing). The inside of the intermediate casing is kept full of water during the cement placement to equilibrate hydraulic pressures inside and outside the casing. After the intermediate casing is sealed with the pressure grouted cement, the float shoe can be drilled out and the borehole advanced for installation of the screen and filter pack in the lower part of the well.
If you apply the weight calculations for a 400-foot-long steel casing with a 16-inch diameter and a 5/16-inch wall thickness, which is filled with water, you’ll see that the downward force in this example is only 52,982 pounds. Thus, the casing in this example will float. The lesson from this counterintuitive scenario is that a casing can actually float. (I’ve seen it happen, and trust me, you don’t want to).
There are several calculations that are commonly applied by drilling fluid engineers (mud engineers) to determine the time period required for the fluid to move from one location in the borehole to another. Some of the more common equations are described below.
The uphole velocity calculation provides a determination of the speed at which the drilling mud will flow as it moves up the borehole. For direct air rotary or reverse circulation drilling methods, the uphole velocity is high, so this calculation is generally applicable only for the direct mud-rotary drilling method. The formula for uphole velocity is:
Notice the uphole velocity formula is similar to the annular volume formula in that both those calculations use the factor (D2 – d2) to address the cross-sectional area of the annulus. However, the constants in these two formulas are different (0.005454 versus 24.51), which can be confusing. Keep in mind, however, that the constants primarily just provide unit conversions.
We can calculate the bottoms-up time by using the uphole velocity formula with the borehole depth and drilling mud flow rate plugged in, but that flow rate is being generated by the mud pump, and positive displacement mud pumps (duplex or triplex) are almost never equipped with a flow meter. To determine the flow coming from the mud pump, we can use the formulas:
Remember the strokes are counted in both the forward and backward directions on a duplex pump, but only in the forward direction on a triplex pump. Drillers often have reference charts that provide oilfield barrels per stroke (bbl/stroke), which can be converted to gpm by timing the strokes per minute and converting barrels to gallons (1 barrel = 42 gallons).
A specified volume of drilling fluids (called a pill) can be circulated to a particular depth interval within the borehole (called spotting), so that the additives in the pill of drilling mud can address the borehole problem at a particular depth of the borehole. This is shown in Figure 6(C).
The calculation for time required to spot a pill of drillingfluid involves determining the pumping time (at the calculated flow rate) required to displace the fluid so that the drilling mud additives are located adjacent to the problematic interval. This approach is used by mud engineers to address problems such as lost circulation or stuck drill pipe.
The formulas and calculations provided in this column and elsewhere provide important tools for us to quantify the variables we need for water well design and construction. However, it is important to remember that “doing the math” is not a replacement for applying professional knowledge and consideration to determine whether the mathematical result makes common sense.
Oil and Gas drilling process - Pupm output for Triplex and Duplex pumpsTriplex Pump Formula 1 PO, bbl/stk = 0.000243 x ( in) E.xample: Determine the pump output, bbl/stk, at 100% efficiency for a 7" by 12". triplex pump: PO @ 100%,= 0.000243 x 7 x12 PO @ 100% = 0.142884bbl/stk Adjust the pump output for 95% efficiency: Decimal equivalent = 95 + 100 = 0.95 PO @ 95% = 0.142884bbl/stk x 0.95 PO @ 95% = 0.13574bbl/stk Formula 2 PO, gpm = [3(D x 0.7854)S]0.00411 x SPM where D = liner diameter, in. S = stroke length, in. SPM = strokes per minute Determine the pump output, gpm, for a 7" by 12". triplex pump at 80 strokes per minute: PO, gpm = [3(7 x 0.7854) 1210.00411 x 80 PO, gpm = 1385.4456 x 0.00411 x 80 PO = 455.5 gpm
Example:Duplex Pump Formula 1 0.000324 x (liner diameter, in) x ( stroke lengh, in) = ________ bbl/stk -0.000162 x (rod diameter, in) x ( stroke lengh, in) = ________ bbl/stk Pump out put @ 100% eff = ________bbl/stk Example: Determine the output, bbl/stk, of a 5 1/2" by 14" duplex pump at 100% efficiency. Rod diameter = 2.0": 0.000324 x 5.5 x 14 = 0.137214bbl/stk -0.000162 x 2.0 x 14 = 0.009072bbl/stk Pump output @ 100% eff. = 0.128142bbl/stk Adjust pump output for 85% efficiency: Decimal equivalent = 85 100 = 0.85 PO@85%)= 0.128142bbl/stk x 0.85 PO@ 85% = 0.10892bbl/stk Formula 2
PO. bbl/stk = 0.000162 x S[2(D) - d] where S = stroke length, in. D = liner diameter, in. d = rod diameter, in. Example: Determine the output, bbl/stk, of a 5 1/2". by 14". duplex pump @ 100% efficiency. Rod diameter = 2.0in.: PO@100%=0.000162 x 14 x [ 2 (5.5) - 2 ] PO @ 100%)= 0.000162 x 14 x 56.5 PO@ 100%)= 0.128142bbl/stk Adjust pump output for 85% efficiency: PO@85%,= 0.128142bb/stkx 0.85 PO@8.5%= 0.10892bbl/stk Metric calculation Pump output, liter/min = pump output. liter/stk x pump speed, spm. S.I. units calculation Pump output, m/min = pump output, liter/stk x pump speed, spm. Mud Pumps Mud pumps drive the mud around the drilling system. Depending on liner size availability they can be set up to provide high pressure and low flow rate, or low pressure and high flow rate. Analysis of the application and running the Drill Bits hydraulics program will indicate which liners to recommend. Finding the specification of the mud pumps allows flow rate to be calculated from pump stroke rate, SPM. Information requiredo Pump manufacturer o Number of pumps o Liner size and gallons per revolution Weight As a drill bit cutting structure wears more weight will be required to achieve the same RoP in a homogenous formation. PDC wear flats, worn inserts and worn milled tooth teeth will make the bit drill less efficiently. Increase weight in increments of 2,000lbs approx. In general, weight should be applied before excessive rotary speed so that the cutting structure maintains a significant depth of cut to stabilise the bit and prevent whirl. If downhole weight measurements are available they can be used in combination with surface measurements to gain a more accurate representation of what is happening in the well bore.
To size and select a pump, we first determine the flow rate. In an industrial setting, the flow rate will often depend on the production level of the plant. Selecting the right flow rate may be as simple as determining that it takes 100 gpm (6.3 L/s) to fill a tank in a reasonable amount of time or the flow rate may depend on some interaction between processes that needs to be carefully analyzed.
We provide hydraulic components & repair services for industrial applications like paper mills, saw mills, steel mills, recycling plants, oil & gas applications and mobile applications, including construction, utility, mining, agricultural and marine equipment. This includes hydraulic pumps, motors, valves, servo/prop valves, PTOs, cylinders & parts.
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The purpose of this article is to present some guidelines and simplified techniques to size pumps and piping typically used in mud systems. If unusual circumstances exist such as unusually long or complicated pipe runs or if very heavy or viscous drilling muds are used, a qualified engineer should analyze the system in detail and calculate an exact solution.
To write about pumps, one must use words that are known and well understood. For example, the label on the lefthand side of any centrifugal pump curve is Total Head Feet. What does this mean?
Total Head remains constant for a particular pump operated at a constant speed regardless of the fluid being pumped. However, a pump’s pressure will increase as the fluid density (mud weight) increases according to the following relationship:
Note that the pump pressure almost doubled. It follows that the required pump horsepower has increased by the same percentage. If the pump required 50 HP for water service, it will require the following horsepower for 16 lb/gal mud:
To summarize, a pump’s Total Head remains constant for any fluid pumped, only the pump pressure and pump horsepower will change. Therefore, a pump motor must be sized according to the heaviest weight mud to be pumped.
In our example problem, the required desilter pressure head is 75 ft. for any mud weight. However, the pressure would be 30.3 PSIG for water or 43.6 PSIG for 12 lb mud or 58.1 PSIG for 16 lb mud. A good rule of thumb is that the required pressure (PSIG) equals 4 times the mud weight (12 LB/GAL x 4 = 48 PSIG).
Determine the required pressure head and flow rate. If the pump is to supply a device such as a mud mixing hopper or a desilter, consult the manufacturer’s information or sales representative to determine the optimum flow rate and pressure head required at the device. (On devices like desilters the pressure head losses downstream of the device are considered negligible and are usually disregarded.)
Select the basic pump to pump the desired flow rate. Its best to refer to a manufacturer’s pump curve for your particular pump. (See example – Figure 3).
The pump’s impeller may be machined to a smaller diameter to reduce its pressure for a given application. Refer to the manufacturer’s pump curves or manufacturer’s representative to determine the proper impeller diameter. Excessive pressure and flow should be avoided for the following reasons:
The pump must produce more than 75 FT-HD at the pump if 75 FT-HD is to be available at the desilter inlet and the pump’s capacity must be at least 800 GPM. Therefore, we should consider using one of the following pumps from the above list: 4″ x 5″ Pump 1750 RPM – 1000 GPM at 160 FT-HD; or 5″ x 6″ Pump 1750 RPM – 1200 GPM at 160 FT-HD.
The pump suction and discharge piping is generally the same diameter as the pump flange diameters. The resulting fluid velocities will then be within the recommended ranges of 4 to 10 FT/SEC for suction lines and 4 to 12 FT/
SEC for discharge lines. Circumstances may dictate that other pipe diameters be used, but remember to try to stay within the above velocity guidelines. Smaller pump discharge piping will create larger pressure drops in the piping
and the pump may not be able to pump the required amount of fluid. (For example, don’t use a 4″ discharge pipe on a 6″ x 8″ pump and expect the pump’s full fluid flow.)
6″ pipe may be used for the suction pipe since it is relatively short and straight and the pump suction is always flooded. 6″ pipe is fully acceptable for the discharge pipe and is a good choice since the desired header is probably 6″ pipe.
8″ pipe may be used for the suction pipe (V = 5.13 FT/SEC) since V is still greater than 4 FT/SEC. 8″ pipe would be preferred if the suction is long or the suction pit fluid level is low with respect to the pump.