By Gabor Takacs
Perfect for removal quite a lot of beverages from wells, electric Submersible Pumps (ESP) are might be the main flexible and ecocnomic items of apparatus in a petrol company's arsenal. despite the fact that, if no longer safely maintained and operated, they can quick turn into a pricey nightmare. the 1st publication dedicated to the layout, operation, upkeep, and care, electric Submersible Pumps handbook supplies the instruments and appropriate wisdom had to optimize ESP functionality whereas maximizing of run lifestyles and the optimization of construction.
The prefect better half for brand new engineers who have to increase and practice their abilities extra successfully or skilled engineers who want extra enhance their wisdom of top perform recommendations, this guide covers easy electric engineering, hydraulics and platforms research ahead of addressing pump elements similar to centrifugal pumps, cars, seals, separators, and cables. additionally, the writer contains entire sections on research and optimization, tracking and trouble-shooting, and deploy layout and set up lower than distinct conditions.
* practice the simplest working practices to optimise production
* song and troubleshoot difficulties comparable to gasoline, solids and corrosion
*Prevent dear mess ups similar to cable burn and impeller cavitation
* layout and study a approach utilizing up to date desktop programs
* determine ESP research tracking equipment and strategies
* be sure optimal operator-vendor courting for mutual advantages
Read Online or Download Electrical Submersible Pumps Manual: Design, Operations, and Maintenance (Gulf Equipment Guides) PDF
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Additional info for Electrical Submersible Pumps Manual: Design, Operations, and Maintenance (Gulf Equipment Guides)
12 Schematic pump performance curves. Liquid Flow Rate, bpd required to drive the pump. Based on measurements at different flow rates, the following three parameters should be plotted vs pumping rate: 1. the head developed by the pump, 2. the brake horsepower required to drive the pump when pumping water, and 3. the pump’s power efficiency. Gr. 0) at a temperature of 60 F, and at a rotational speed of RPM ¼ 3,500 or RPM ¼ 2,917, for 60 Hz and 50 Hz service, respectively. If actual tests are performed with other fluids or speeds, the results must be corrected to standard conditions.
Fluids in the formation flow to the well from as far as the boundary of the drainage area, 1. After entering the well through the sandface, vertical flow in the tubing starts at the well bottom, 2. In the tubing string vertical or inclined tubing flow takes place up to the wellhead, 3. A surface choke bean is installed at 4, which is also the intake point to the flowline. Horizontal or inclined flow in the flowline leads into the separator, 5. The points in the flowing well’s production system designated by the numbers in Fig.
Pumps of bigger sizes can produce greater rates although impeller design also has a great impact on pump capacity. Present-day ESP pumps come in different capacities from a few hundred to around 80,000 bpd of liquid production rate and in outside diameters from around 3 in up to 11 in. Smaller units contain pancake-type impellers with radial discharge and are used up to the rates of 1,500–3,500 bpd, above which mixed flow impellers are used. The length of individual ESP pumps is limited to about 20–25 ft, for ensuring proper assembly and ease of handling.