4 hydraulics
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This document discusses hydraulic modeling and optimization for drilling operations. It covers: 1) The main hydraulic models used - Newtonian, Bingham Plastic, Power Law, and Yield Power Law models. The Yield Power Law is typically most accurate. 2) Key factors that influence hydraulics like flow regime, hole erosion, pressure losses, bit cleaning, cuttings transport, and standpipe pressure. 3) Optimization criteria for bit hydraulics focus on maximizing either bit hydraulic horsepower or jet impact force by controlling flow rate and pressure loss.
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The quarterly maintenance checklist provides instructions for technicians to clean, lubricate, and inspect various components of training machines on a quarterly basis. Technicians are to clean and lubricate slides and hydraulic tanks, check motors and gearboxes, inspect electrical panels and machine bases, restore machine functions, and check electrical systems, fuses, relays, and wires. The checklist is to be completed by technicians and signed off by maintenance and section supervisors.
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Episode 39 : Hopper Design
Episode 39 : Hopper Design
Problem:
1 -experiments with shear box jenike on a particulate catalyst to give the family
yield locus as in 1. given that the bulk density is 1000 kg/m3 particulates and wall friction angle is 15
a-from design chart silo cone, do design a mass flow hopper for the material.
b-if the average size is 100 um, calculate the discharge flow rate passing through the discharge opening
2 - For the above materials using stainless steel is required to store 1000 tons of particulate in it. Coefficient of friction at the wall is given as 0.45 for each value and the formula that you use the appropriate justify the design.
a - draw the dimensions of the silo you and draw a vertical stress profile and the wall of the silo whole time say powerful particle
b- specify the maximum vertical stress and the wall of the silo you
c - if you use several different approaches in the design you provide appropriate recommendations to your employer for work before the end of the casting device fabrication started.
d - if problems such as the formation of the entrance are available after a certain time interval suggest measures - flow improvement measures to be taken to your employer
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
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Development
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Episode 39 : Hopper Design
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Problem:
1 -experiments with shear box jenike on a particulate catalyst to give the family
yield locus as in 1. given that the bulk density is 1000 kg/m3 particulates and wall friction angle is 15
a-from design chart silo cone, do design a mass flow hopper for the material.
b-if the average size is 100 um, calculate the discharge flow rate passing through the discharge opening
2 - For the above materials using stainless steel is required to store 1000 tons of particulate in it. Coefficient of friction at the wall is given as 0.45 for each value and the formula that you use the appropriate justify the design.
a - draw the dimensions of the silo you and draw a vertical stress profile and the wall of the silo whole time say powerful particle
b- specify the maximum vertical stress and the wall of the silo you
c - if you use several different approaches in the design you provide appropriate recommendations to your employer for work before the end of the casting device fabrication started.
d - if problems such as the formation of the entrance are available after a certain time interval suggest measures - flow improvement measures to be taken to your employer
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
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Generally Pumps classification done on the basis of its mechanical configurat...
Pumps simplify the transportation of water and other fluids, making them very useful in all types of buildings - residential, commercial, and industrial. For example, fire pumps provide a pressurized water supply for firefighters and automatic sprinklers, water booster pumps deliver potable water to upper floors in tall buildings, and hydronic pumps are used in HVAC systems that use water to deliver space heating and cooling.
TYPES OF PUMPS AND THEIR WORKING PRINCIPLES
Generally Pumps classification done on the basis of its mechanical configuration and their working principle. Classification of pumps mainly divided into two major categories:
Dynamic pumps / Kinetic pumps
Dynamic pumps impart velocity and pressure to the fluid as it moves past or through the pump impeller and, subsequently, convert some of that velocity into additional pressure. It is also called Kinetic pumps Kinetic pumps are subdivided into two major groups and they are centrifugal pumps and positive displacement pumps.
Classification of Dynamic Pumps
1.1 Centrifugal Pumps
A centrifugal pump is a rotating machine in which flow and pressure are generated dynamically. The energy changes occur by virtue of two main parts of the pump, the impeller and the volute or casing. The function of the casing is to collect the liquid discharged by the impeller and to convert some of the kinetic (velocity) energy into pressure energy.
1.2 Vertical Pumps
Vertical pumps were originally developed for well pumping. The bore size of the well limits the outside diameter of the pump and so controls the overall pump design.2.) Displacement Pumps / Positive displacement pumps
2. Displacement Pumps / Positive displacement pumps
Positive displacement pumps, the moving element (piston, plunger, rotor, lobe, or gear) displaces the liquid from the pump casing (or cylinder) and, at the same time, raises the pressure of the liquid. So displacement pump does not develop pressure; it only produces a flow of fluid.
Classification of Displacement Pumps
2.1 Reciprocating pumps
In a reciprocating pump, a piston or plunger moves up and down. During the suction stroke, the pump cylinder fills with fresh liquid, and the discharge stroke displaces it through a check valve into the discharge line. Reciprocating pumps can develop very high pressures. Plunger, piston and diaphragm pumps are under these type of pumps.
2.2 Rotary Type Pumps
The pump rotor of rotary pumps displaces the liquid either by rotating or by a rotating and orbiting motion. The rotary pump mechanisms consisting of a casing with closely fitted cams, lobes, or vanes, that provide a means for conveying a fluid. Vane, gear, and lobe pumps are positive displacement rotary pumps.
2.3 Pneumatic Pumps
Compressed air is used to move the liquid in pneumatic pumps. In pneumatic ejectors, compressed air displaces the liquid from a gravity-fed pressure vessel through a check valve into the discharge line in a series of surges spaced by the time required.
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This document summarizes algorithms for optimizing drill bit design and calculating surge and swab pressures during drilling operations.
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Part 2 presents algorithms to calculate surge and swab pressures when running or pulling drill pipe in and out of the well. The algorithms account for friction between the moving pipe and stationary drilling fluid to determine how pipe velocity affects downhole pressure changes.
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This document provides testing methods and procedures for remanufactured main pumps used in Komatsu construction machines. It contains the following key points:
1. The document outlines the test items, equipment, components, and procedures for evaluating remanufactured HPV95 + 95 pumps. This includes checking for abnormalities, measuring flow rates, and testing pressure control characteristics.
2. The testing is done using a Komatsu hydraulic test stand to simulate the pump operating conditions. Standards are provided to evaluate performance.
3. The document provides details on adjusting the pump to meet flow rate standards, including the adjustment screws used to set maximum and minimum flow. Precision is required when adjusting and measuring components.
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The document provides requirements for designing a hydraulic system for moving a machine slide. It includes:
1) The slide moves 250mm against a 15,000N load in 5 seconds, followed by a 100mm working stroke against 35,000N load at 0.5-1m/min.
2) The return stroke should be as fast as possible.
3) A meter-out circuit is required to meet the specifications. Components should be selected from the data provided.
silo.tips_pete-203-drilling-engineering.ppt
This document discusses drilling hydraulics and fluid flow concepts. It covers topics like energy balance, flow through nozzles, hydraulic horsepower, conservation laws, average fluid velocity equations, the law of conservation of energy, determining pressure at different points, nozzle flow, hydraulic impact force, rheological fluid models including Newtonian, Bingham plastic and power-law models, laminar and turbulent flow, critical Reynolds number, pump pressure calculations, and pressure losses in different components like drill pipe, drill collars and bit nozzles. Diagrams illustrate concepts like velocity profiles, flow patterns and fraction factors. Equations are provided for calculations.
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The document discusses assessing the energy efficiency of pumps and fans through on-site performance testing. Key parameters that are measured for pumps include flow rate, head, power, and efficiency. Various methods for measuring flow are described, such as the tracer method, ultrasonic meters, tank filling, and installing an online flow meter. Opportunities to improve pumping system efficiency include operating at the best efficiency point, minimizing restrictions, and proper maintenance. Performance testing of fans similarly determines flow, power input, and pressure rise. Generic opportunities to improve fan efficiency also focus on operating conditions and maintenance.
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This document describes Guangdong Honny Power-Tech Co., Ltd and Googol Engine-Tech Co., which are power solution and large power engine manufacturers. It provides information on their product lines, which include gas generators from 160kW to 1452kW and large diesel/gas engines. It also details the companies' locations, vision, and standard equipment and components included with their genset and power solutions.
I_P Converter final
A current to pressure (I/P) converter converts an analog current signal of 4-20 mA to a proportional pneumatic pressure output of 3-15 psig. It is used in pneumatic control systems to translate electrical control signals into precise, repeatable pressure values that can control pneumatic actuators. The I/P converter has a rugged zinc cast housing and requires an external power supply and compressed air source. It works using an electromagnetic force balance principle with a flapper-nozzle assembly, and has zero and span adjustments for field calibration. I/P converters are commonly used in industrial processes to control levels, flows, pressures, temperatures and other process variables.
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2. Customized hydraulic poker beams can be assembled and attached to carriers like excavators or bulldozers. The document outlines considerations for choosing an appropriate excavator based on the number of pokers, beam weight, and excavator specifications.
3. Guidelines are provided for effective vibration of concrete including depth, cycle, capacity calculation, and positioning of pokers to fully compact the material without over-vibration. Examples and pictures from dam projects in Iran and harbor works demonstrate successful
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The CPC-II is an enhanced version of the current to pressure converter that provides improved functionality and added features over previous models. Key enhancements include increased inlet pressure rating, use of corrosion resistant materials, cleaning algorithms to resist silt buildup, diagnostic monitoring tools, and redundant inputs/outputs for improved reliability in critical applications. The CPC-II offers advantages over competitors such as higher accuracy, resolution, stability, and linearity control along with enhanced resistance to contamination issues.
IPTC 18916 presentation slides (technical session 11)
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Poster - Plovdiv 2014
1. The document analyzes and compares the energy efficiency of three variants of an electrohydraulic closed-loop control system for driving electric generators using wave energy.
2. It calculates the hydraulic losses at maximum and minimum flow rates for each variant, finding the highest losses of 5.4 kW for Variant 1 and lowest of 1.6 kW for Variant 2.
3. An analysis of energy efficiency shows Variant 2 is the most efficient at 93.6%, followed closely by Variant 3 at 93.3%, while Variant 1 has the lowest efficiency at 78.4%.
3: Energy Management In Water Supply Systems - Pumping Operations
Energy management in water pumping systems is important to improve efficiency. Pumps are often oversized, leading to throttling that reduces efficiency. Key factors that impact pump selection and efficiency include flow rate, head, specific speed, affinity laws, and operating point. Strategies like variable speed drives, trimming impellers, and replacing old pumps can help optimize systems and minimize energy waste. Proper pump sizing, installation, operation and maintenance are essential for energy efficiency.
بنعمل ايه على الصفحة والجروب - أزاى نتعامل مع السكر 1 و 2 من واقع التجربة
بنعمل ايه على الصفحة والجروب - أزاى نتعامل مع السكر 1 و 2 من واقع التجربة
Drilling rig operations a to z rotary drilling rig components
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Generally Pumps classification done on the basis of its mechanical configurat...
Pumps simplify the transportation of water and other fluids, making them very useful in all types of buildings - residential, commercial, and industrial. For example, fire pumps provide a pressurized water supply for firefighters and automatic sprinklers, water booster pumps deliver potable water to upper floors in tall buildings, and hydronic pumps are used in HVAC systems that use water to deliver space heating and cooling.
TYPES OF PUMPS AND THEIR WORKING PRINCIPLES
Generally Pumps classification done on the basis of its mechanical configuration and their working principle. Classification of pumps mainly divided into two major categories:
Dynamic pumps / Kinetic pumps
Dynamic pumps impart velocity and pressure to the fluid as it moves past or through the pump impeller and, subsequently, convert some of that velocity into additional pressure. It is also called Kinetic pumps Kinetic pumps are subdivided into two major groups and they are centrifugal pumps and positive displacement pumps.
Classification of Dynamic Pumps
1.1 Centrifugal Pumps
A centrifugal pump is a rotating machine in which flow and pressure are generated dynamically. The energy changes occur by virtue of two main parts of the pump, the impeller and the volute or casing. The function of the casing is to collect the liquid discharged by the impeller and to convert some of the kinetic (velocity) energy into pressure energy.
1.2 Vertical Pumps
Vertical pumps were originally developed for well pumping. The bore size of the well limits the outside diameter of the pump and so controls the overall pump design.2.) Displacement Pumps / Positive displacement pumps
2. Displacement Pumps / Positive displacement pumps
Positive displacement pumps, the moving element (piston, plunger, rotor, lobe, or gear) displaces the liquid from the pump casing (or cylinder) and, at the same time, raises the pressure of the liquid. So displacement pump does not develop pressure; it only produces a flow of fluid.
Classification of Displacement Pumps
2.1 Reciprocating pumps
In a reciprocating pump, a piston or plunger moves up and down. During the suction stroke, the pump cylinder fills with fresh liquid, and the discharge stroke displaces it through a check valve into the discharge line. Reciprocating pumps can develop very high pressures. Plunger, piston and diaphragm pumps are under these type of pumps.
2.2 Rotary Type Pumps
The pump rotor of rotary pumps displaces the liquid either by rotating or by a rotating and orbiting motion. The rotary pump mechanisms consisting of a casing with closely fitted cams, lobes, or vanes, that provide a means for conveying a fluid. Vane, gear, and lobe pumps are positive displacement rotary pumps.
2.3 Pneumatic Pumps
Compressed air is used to move the liquid in pneumatic pumps. In pneumatic ejectors, compressed air displaces the liquid from a gravity-fed pressure vessel through a check valve into the discharge line in a series of surges spaced by the time required.
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This document summarizes algorithms for optimizing drill bit design and calculating surge and swab pressures during drilling operations.
Part 1 describes an algorithm to optimize drill bit design by analyzing the effects of drilling variables like mud type, weight on bit, and nozzle geometry on objectives like maximum jet impact force and hydraulic horsepower. Variables are adjusted to find the optimum flow rate and nozzle configuration.
Part 2 presents algorithms to calculate surge and swab pressures when running or pulling drill pipe in and out of the well. The algorithms account for friction between the moving pipe and stationary drilling fluid to determine how pipe velocity affects downhole pressure changes.
Hpv pinton pump test
This document provides testing methods and procedures for remanufactured main pumps used in Komatsu construction machines. It contains the following key points:
1. The document outlines the test items, equipment, components, and procedures for evaluating remanufactured HPV95 + 95 pumps. This includes checking for abnormalities, measuring flow rates, and testing pressure control characteristics.
2. The testing is done using a Komatsu hydraulic test stand to simulate the pump operating conditions. Standards are provided to evaluate performance.
3. The document provides details on adjusting the pump to meet flow rate standards, including the adjustment screws used to set maximum and minimum flow. Precision is required when adjusting and measuring components.
Final_Presentation_Humpback_Hydro
Group 8 presented the final design of an offshore ocean hydro storage system. They selected a 10 MW TMEIC generator and Hammond Power Systems transformer to connect the system to the grid. Analysis of a gravity dam showed it could withstand pressures with safety factors over 1.5 for sliding and 3 for compression up to a height of 55 meters. System calculations using fluid dynamics achieved a best efficiency of 70.2% for the given turbine heads and flows. A MATLAB graphical interface allows users to input power output, storage time, and demand periods to size the facilities. The design included 220,000 cubic meters of concrete and delivered a 10 MW output over 3 hours of storage.
Improving Energy Efficiency of Pumps and Fans
Pumps and Fans are energy consuming equipment that can be found in almost all Industries. Therefore, it is important to check if they are running efficiently. This presentation give an overview about energy saving opportunities in pump and fan equipment. It was prepared in the context of energy auditor training in Nepal in the context of GIZ/NEEP programme. For further information go to EEC webpage: http://eec-fncci.org/
Hedland Variable Area Flow Meters
Hedland offers a complete line of over 15,000 variable area flow meters to measure oil, hydraulic oil, phosphate esters, water and water-based fluids, as well as air and other compressed gases.
HYDRAULIC SYSTEM DESIGN from hydraulics .pptx
The document provides requirements for designing a hydraulic system for moving a machine slide. It includes:
1) The slide moves 250mm against a 15,000N load in 5 seconds, followed by a 100mm working stroke against 35,000N load at 0.5-1m/min.
2) The return stroke should be as fast as possible.
3) A meter-out circuit is required to meet the specifications. Components should be selected from the data provided.
silo.tips_pete-203-drilling-engineering.ppt
This document discusses drilling hydraulics and fluid flow concepts. It covers topics like energy balance, flow through nozzles, hydraulic horsepower, conservation laws, average fluid velocity equations, the law of conservation of energy, determining pressure at different points, nozzle flow, hydraulic impact force, rheological fluid models including Newtonian, Bingham plastic and power-law models, laminar and turbulent flow, critical Reynolds number, pump pressure calculations, and pressure losses in different components like drill pipe, drill collars and bit nozzles. Diagrams illustrate concepts like velocity profiles, flow patterns and fraction factors. Equations are provided for calculations.
2014 Googol gas generator introduction-googol(1)
Googol Engine-Tech Co. produces gas and diesel engines for power generation. They have manufacturing bases in China and the US. Their product lines include the R series gas generators from 160kW to 500kW and the J series from 600kW to 1452kW. The document provides technical specifications and components for their gas generator sets including engines, alternators, control systems, and other electrical and mechanical components.
Energy efficiency in pumps and fans ppt
The document discusses assessing the energy efficiency of pumps and fans through on-site performance testing. Key parameters that are measured for pumps include flow rate, head, power, and efficiency. Various methods for measuring flow are described, such as the tracer method, ultrasonic meters, tank filling, and installing an online flow meter. Opportunities to improve pumping system efficiency include operating at the best efficiency point, minimizing restrictions, and proper maintenance. Performance testing of fans similarly determines flow, power input, and pressure rise. Generic opportunities to improve fan efficiency also focus on operating conditions and maintenance.
Itron US BR 473 Ultrasonic Flow Meter - Brochure - English
The US BR 473 is an ultrasonic flow meter well-suited for district heating applications. It has a flow range of 25-60 cubic meters per hour and transmits pulse outputs to connected calculators with programmable pulse weights. It is powered by the calculator, has high accuracy and robustness, and can be installed horizontally or vertically. Applications include heat, cooling, and combined systems. It meets various industry standards and has an IP rating of 54 or 68 depending on the version.
Googol gas generator introduction
This document describes Guangdong Honny Power-Tech Co., Ltd and Googol Engine-Tech Co., which are power solution and large power engine manufacturers. It provides information on their product lines, which include gas generators from 160kW to 1452kW and large diesel/gas engines. It also details the companies' locations, vision, and standard equipment and components included with their genset and power solutions.
I_P Converter final
A current to pressure (I/P) converter converts an analog current signal of 4-20 mA to a proportional pneumatic pressure output of 3-15 psig. It is used in pneumatic control systems to translate electrical control signals into precise, repeatable pressure values that can control pneumatic actuators. The I/P converter has a rugged zinc cast housing and requires an external power supply and compressed air source. It works using an electromagnetic force balance principle with a flapper-nozzle assembly, and has zero and span adjustments for field calibration. I/P converters are commonly used in industrial processes to control levels, flows, pressures, temperatures and other process variables.
3D Dynamic Simulation of a Flow Force Compensated Pressure Relief Valve
Presentation at ASME 2016 International Mechanical Engineering Congress and Exposition, Phoenix, 16 November, 2016
by FPRL - Politecnico di Torino
MASS VIBRATION POKERS 2011.ppt
1. The document discusses hydraulic pokers used for vibrating concrete, especially for dam, harbor, and wave breaker projects. It provides details on the BH160 poker including its dimensions, vibration properties, and hydraulic requirements.
2. Customized hydraulic poker beams can be assembled and attached to carriers like excavators or bulldozers. The document outlines considerations for choosing an appropriate excavator based on the number of pokers, beam weight, and excavator specifications.
3. Guidelines are provided for effective vibration of concrete including depth, cycle, capacity calculation, and positioning of pokers to fully compact the material without over-vibration. Examples and pictures from dam projects in Iran and harbor works demonstrate successful
MSc Degree Presentation_DS_CP_DEFINITIVE
This document discusses hybrid electric vehicle powertrain architectures and their modeling. It summarizes that tighter emissions regulations are increasing interest in hybrid vehicles. It models a Fiat Panda with both a belt-driven starter generator (BSG) and through-the-road (TTR) configuration, finding the TTR reduces fuel consumption by 12-15% compared to the BSG. Both architectures have benefits, suggesting an optimal design may combine elements of each.
CPC-GenII_C.ppt
The CPC-II is an enhanced version of the current to pressure converter that provides improved functionality and added features over previous models. Key enhancements include increased inlet pressure rating, use of corrosion resistant materials, cleaning algorithms to resist silt buildup, diagnostic monitoring tools, and redundant inputs/outputs for improved reliability in critical applications. The CPC-II offers advantages over competitors such as higher accuracy, resolution, stability, and linearity control along with enhanced resistance to contamination issues.
IPTC 18916 presentation slides (technical session 11)
This document summarizes a study evaluating different multistage hydraulic fracturing patterns in naturally fractured reservoirs using a coupled geomechanics fracture and flow model. The study models three fracturing patterns - conventional, zipper, and alternating - in a field case with multiple horizontal wells. Simulation results show the zipper pattern provides the highest long-term production rates and cumulative oil volume over 20 years compared to the other patterns. The zipper pattern is recommended as the optimal completion strategy for this type of reservoir.
Poster - Plovdiv 2014
1. The document analyzes and compares the energy efficiency of three variants of an electrohydraulic closed-loop control system for driving electric generators using wave energy.
2. It calculates the hydraulic losses at maximum and minimum flow rates for each variant, finding the highest losses of 5.4 kW for Variant 1 and lowest of 1.6 kW for Variant 2.
3. An analysis of energy efficiency shows Variant 2 is the most efficient at 93.6%, followed closely by Variant 3 at 93.3%, while Variant 1 has the lowest efficiency at 78.4%.
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【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：6496090】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：6496090】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：6496090】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理南安普顿索伦特大学毕业证Southampton学位证【微信：6496090 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理南安普顿索伦特大学毕业证Southampton学位证【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理南安普顿索伦特大学毕业证Southampton学位证【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理南安普顿索伦特大学毕业证Southampton学位证【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
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【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：6496090】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：6496090】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：6496090】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理布兰登大学毕业证(BU毕业证书)【微信：6496090 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理布兰登大学毕业证(BU毕业证书)【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理布兰登大学毕业证(BU毕业证书)【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理布兰登大学毕业证(BU毕业证书)【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
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How to apply for building permit in the city of Caloocan?
What is a building permit?
Who applies for building permit?
一比一原版阿肯色大学毕业证(UCSF毕业证书)如何办理
学校原件一模一样【微信：6496090】【阿肯色大学毕业证(UCSF毕业证书)成绩单学位证】【微信：6496090】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：6496090】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：6496090】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：6496090】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理阿肯色大学毕业证(UCSF毕业证书)【微信：6496090 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理阿肯色大学毕业证(UCSF毕业证书)【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理阿肯色大学毕业证(UCSF毕业证书)【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理阿肯色大学毕业证(UCSF毕业证书)【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
一比一原版美国哥伦比亚大学毕业证Columbia成绩单一模一样
原件一模一样【微信：6496090】【美国哥伦比亚大学毕业证Columbia学位证成绩单】【微信：6496090】（留信学历认证永久存档查询）采用学校原版纸张、特殊工艺完全按照原版一比一制作（包括：隐形水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠，文字图案浮雕，激光镭射，紫外荧光，温感，复印防伪）行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备，十五年致力于帮助留学生解决难题，业务范围有加拿大、英国、澳洲、韩国、美国、新加坡，新西兰等学历材料，包您满意。
【业务选择办理准则】
一、工作未确定，回国需先给父母、亲戚朋友看下文凭的情况，办理一份就读学校的毕业证【微信：6496090】文凭即可
二、回国进私企、外企、自己做生意的情况，这些单位是不查询毕业证真伪的，而且国内没有渠道去查询国外文凭的真假，也不需要提供真实教育部认证。鉴于此，办理一份毕业证【微信：6496090】即可
三、进国企，银行，事业单位，考公务员等等，这些单位是必需要提供真实教育部认证的，办理教育部认证所需资料众多且烦琐，所有材料您都必须提供原件，我们凭借丰富的经验，快捷的绿色通道帮您快速整合材料，让您少走弯路。
留信网认证的作用:
1:该专业认证可证明留学生真实身份【微信：6496090】
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
→ 【关于价格问题（保证一手价格）
我们所定的价格是非常合理的，而且我们现在做得单子大多数都是代理和回头客户介绍的所以一般现在有新的单子 我给客户的都是第一手的代理价格，因为我想坦诚对待大家 不想跟大家在价格方面浪费时间
对于老客户或者被老客户介绍过来的朋友，我们都会适当给一些优惠。
选择实体注册公司办理，更放心，更安全！我们的承诺：可来公司面谈，可签订合同，会陪同客户一起到教育部认证窗口递交认证材料，客户在教育部官方认证查询网站查询到认证通过结果后付款，不成功不收费！
办理美国哥伦比亚大学毕业证Columbia学位证【微信：6496090 】外观非常精致，由特殊纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理美国哥伦比亚大学毕业证Columbia学位证【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理美国哥伦比亚大学毕业证Columbia学位证【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理美国哥伦比亚大学毕业证Columbia学位证【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Timeless Principles of Good Design
Timeless Principles of Good Design from my 2015 Presentation at TYPO SF
Maximize Your Content with Beautiful Assets : Content & Asset for Landing Page
Figma is a cloud-based design tool widely used by designers for prototyping, UI/UX design, and real-time collaboration. With features such as precision pen tools, grid system, and reusable components, Figma makes it easy for teams to work together on design projects. Its flexibility and accessibility make Figma a top choice in the digital age.
Practical eLearning Makeovers for Everyone
Welcome to Practical eLearning Makeovers for Everyone. In this presentation, we’ll take a look at a bunch of easy-to-use visual design tips and tricks. And we’ll do this by using them to spruce up some eLearning screens that are in dire need of a new look.
Divertidamente SLIDE.pptxufururururuhrurid8dj
Hsuehebvdhdueuw8wiiwieih3udud8e8wisbdydvw7wbidj38ehehdheuwjhdiwjwieheheueurhryrurhrgryd7eueue
一比一原版(LSBU毕业证书)伦敦南岸大学毕业证如何办理
学校原件一模一样【微信：6496090 】【(LSBU毕业证书)伦敦南岸大学毕业证成绩单】【微信：6496090 】学位证，留信认证（真实可查，永久存档）原件一模一样纸张工艺/offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原。
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微6496090
【主营项目】
一.毕业证【q微6496090】成绩单、使馆认证、教育部认证、雅思托福成绩单、学生卡等！
二.真实使馆公证(即留学回国人员证明,不成功不收费)
三.真实教育部学历学位认证（教育部存档！教育部留服网站永久可查）
四.办理各国各大学文凭(一对一专业服务,可全程监控跟踪进度)
如果您处于以下几种情况：
◇在校期间，因各种原因未能顺利毕业……拿不到官方毕业证【q/微6496090】
◇面对父母的压力，希望尽快拿到；
◇不清楚认证流程以及材料该如何准备；
◇回国时间很长，忘记办理；
◇回国马上就要找工作，办给用人单位看；
◇企事业单位必须要求办理的
◇需要报考公务员、购买免税车、落转户口
◇申请留学生创业基金
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
办理(LSBU毕业证书)伦敦南岸大学毕业证【微信：6496090 】外观非常简单，由纸质材料制成，上面印有校徽、校名、毕业生姓名、专业等信息。
办理(LSBU毕业证书)伦敦南岸大学毕业证【微信：6496090 】格式相对统一，各专业都有相应的模板。通常包括以下部分：
校徽：象征着学校的荣誉和传承。
校名:学校英文全称
授予学位：本部分将注明获得的具体学位名称。
毕业生姓名：这是最重要的信息之一，标志着该证书是由特定人员获得的。
颁发日期：这是毕业正式生效的时间，也代表着毕业生学业的结束。
其他信息：根据不同的专业和学位，可能会有一些特定的信息或章节。
办理(LSBU毕业证书)伦敦南岸大学毕业证【微信：6496090 】价值很高，需要妥善保管。一般来说，应放置在安全、干燥、防潮的地方，避免长时间暴露在阳光下。如需使用，最好使用复印件而不是原件，以免丢失。
综上所述，办理(LSBU毕业证书)伦敦南岸大学毕业证【微信：6496090 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
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4 hydraulics
- 1. 1 HYDRAULICS V3.4 • Determines hydraulic performance for a specified set of conditions • Designs hydraulic system for optimum performance – For max. bit hydraulic horsepower (BHHP) – For max. jet impact force (IF) Optimizing for max. BHHP or max. IF, the program shows the relationship graphically between flow rate, SPP, and bit TFA for a given drill string and wellboreconfiguration. V3.4 Module Features Hydraulics Main Screen Flow Behavior Comparison V3.4 Yield Power-Law Bingham-plastic Power-Law Newtonic Shear rate Shear stress Rheology Models • Newtonian • Bingham Plastic • Power Law • Yield Power Law t = µD t = t0+µD t = KDn t = t0+ KDn pseudo-plastic V3.4 Model Inefficiencies • Bingham overstates drillstring losses • Power Law understates annular losses • Yield Power Law most accurate • None account for temperature and pressure effects V3.4
- 2. 2 Viscosimeter Data Evaluation Bingham-plastic parameters : • PV =T600 – T300 cP • YP =T300 – PV lb/100 sq.ft Power-law parameters : 300 600 log32.3n Θ Θ ×= V3.4 n 300 511 K Θ = lb-sn/100 sq.ft - Hydraulics Issues : • Flow Regime (laminar or turbulent) • Hole Erosion • Pressure Losses • Bit Cleaning • Bottom Hole Cleaning • Cuttings Transport in Annulus • Hydraulic Power forDownholeTools • Standpipe Pressure • Pump Liners Size, Pump Rate(s) V3.4 Annular Hydraulics • Cuttings removal is of primary importance • Hole erosion (washouts) • Equivalent Circulating Density (ECD) • Critical velocity in annulus – Laminar Flow – Turbulent Flow • Pressure loss in annulus V3.4 Bit Hydraulics • Jet velocity : • Bit pressure loss : • Bit hydraulic horsepower : • Hydraulic horsepower per sq. inch : TFA q 32.0vj ×= V3.4 2 2 b TFA10858 MWq P × × =∆ 1714 QP BHHP b ×∆ = 2 bD BHHP 27.1HSI ×= fps psi hp hp/sq.in Bit Hydraulics Optimization criteria : • Bit Hydraulic Horsepower : BHHP = f(? Pb ; Q) Optimum : at 65% of the pump pressure lost at bit • Impact Force : IF = f(MW;Q;vj) Optimum : at 48% of the pump pressure lost at bit 1714 QP BHHP b ×∆ = V3.4 1930 QvMW IF j ×× = hp lbs Hydraulics • Surface System 5% 5 • Drill String 40% 40 • DownholeTools 0-20% 20 • Annulus 5% 5 • Bit 30-50% 30 _________ 100 % V3.4 Pressure losses: Note : optimum hydraulics requires 48-65% of the total pressure lost in the bit
- 3. 3 Prior Run Calculation SPP = C1 QC2 • Input Q1- SPP1 and Q2 - SPP2 • Same drill string configuration, same mud weight and viscosity • From two sets of data (2 equations) C1 and C2 could be defined • When C1 and C2 are known, SPP for every Q could be calculated V3.4 Recommendations V3.4 • Flow rate : 4.5~7.0 gpm/in2 ; depending on formation hardness or 30~70 gpm/in of bit diameter • Pressure loss at bit : 50~65% of total pressure loss ~50% for roller cone bits ~65% for fixed cutter bit • Jet velocity : 300~450 fps • HSI : 2.5~7.0 depending on bit • Annular flow : laminar • Transport ratio : > 50% Hydraulics V3.4 Notes : • Motor and MWD data are supplied in pick tables • Check the pressure drop data in the tables and correct • Surface equipment type code has to be supplied • Measure / estimate the equivalent cuttings diameter and density • Calculate cuttings transport ratio • Calculate pump strokes / minute