Difference between revisions of "PQplot"
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== Brief == | == Brief == | ||
| − | PQplot calculates inflow performance relationship | + | [[PQplot]] calculates inflow performance relationship [[IPR]] and vertical lift performance [[VLP]] curves for oil and gas wells. |
[[File:PQPLOT_i.png|thumb|right|200px|link=http://www.pengtools.com/pqPlot|pengtools PQplot]] | [[File:PQPLOT_i.png|thumb|right|200px|link=http://www.pengtools.com/pqPlot|pengtools PQplot]] | ||
| − | == Typical | + | == Typical applications == |
| − | * Estimation of flow rates | + | * Estimation of flow rates and AOF |
* Selection of tubing size | * Selection of tubing size | ||
* Selection of flowline size | * Selection of flowline size | ||
| − | * Selection of wellhead pressures | + | * Selection of the operating wellhead pressures |
* Estimation of the effects of reservoir pressure depletion | * Estimation of the effects of reservoir pressure depletion | ||
* Identification of flow restrictions | * Identification of flow restrictions | ||
== Main features == | == Main features == | ||
| − | * Plot of Inflow performance curve | + | * Plot of Inflow performance curve [[IPR]] and Vertical lift performance curve [[VLP]] |
* Rate and pressure at intersection point | * Rate and pressure at intersection point | ||
* Sensitivity analysis of IPR and VLP curves on parameters | * Sensitivity analysis of IPR and VLP curves on parameters | ||
| Line 22: | Line 22: | ||
* Inclined wells calculations | * Inclined wells calculations | ||
* Tubing, annular and both flow types | * Tubing, annular and both flow types | ||
| − | |||
== Interface features == | == Interface features == | ||
| Line 107: | Line 106: | ||
[[Category:PQplot]] | [[Category:PQplot]] | ||
[[Category:pengtools]] | [[Category:pengtools]] | ||
| + | |||
| + | {{#seo: | ||
| + | |title=PQplot Nodal Analysis Software | ||
| + | |titlemode= replace | ||
| + | |keywords=nodal analysis, nodal analysis software, tubing, reservoir, fluids flow, sensitivity, gas flow, petroleum engineering | ||
| + | |description=PQplot Nodal Analysis Software | ||
| + | }} | ||
Latest revision as of 07:53, 7 December 2018
Brief
PQplot calculates inflow performance relationship IPR and vertical lift performance VLP curves for oil and gas wells.
Typical applications
- Estimation of flow rates and AOF
- Selection of tubing size
- Selection of flowline size
- Selection of the operating wellhead pressures
- Estimation of the effects of reservoir pressure depletion
- Identification of flow restrictions
Main features
- Plot of Inflow performance curve IPR and Vertical lift performance curve VLP
- Rate and pressure at intersection point
- Sensitivity analysis of IPR and VLP curves on parameters
- Using prepared PVT models
- Inclined wells calculations
- Tubing, annular and both flow types
Interface features
- Save and share references to saved models with colleagues
- Last saved model on current computer and browser is automatically opened
- Choose between Metric units and US oilfield units
- Save as image and print plot by means of chart context menu (button at the upper-right corner of chart)
- Download report in pdf format containing input parameters, calculated values and plot
- Select and copy results to Excel or other application
Correlations
| Type of problem | Correlation | Reference |
|---|---|---|
|
Oil well VLP |
Hagedorn, A. R., & Brown, K. E. (1965). Experimental study of pressure gradients occurring during continuous two-phase flow in small-diameter vertical conduits. Journal of Petroleum Technology, 17(04), 475-484. | |
|
Gas well VLP |
Gray, H. E. (1974). Vertical flow correlation in gas wells. User manual for API14B, subsurface controlled safety valve sizing computer program. | |
|
Dry gas VLP |
Cullender, M.H. and Smith, R.V. 1956. Practical Solution of Gas-Flow Equations for Wells and Pipelines with Large Temperature Gradients. Trans., AIME 207: 281. | |
|
Oil well inflow |
Composite IPR based – Vogel equations taking into account water |
Kermit E. Brown "The Technology of Artificial Lift Methods" Vol. 4 Production Optimization of Oil and Gas Wells by Nodal System Analysis, p. 30, section 2.227.1 |
|
Gas well inflow – backpressure equation |
Rawlins and Schellhardt |
Rawlins, E.L. and Schellhardt, M.A. 1935. Backpressure Data on Natural Gas Wells and Their Application to Production Practices, Vol. 7. Monograph Series, USBM. |
|
Gas well inflow – pseudo-pressure equation using Jd and kh values |
Real-gas pseudopressure equation |
See for example: Ahmed, T., & McKinney, P. (2011). Advanced reservoir engineering. Gulf Professional Publishing. |
|
Turner |
Turner, R. G., Hubbard, M. G., and Dukler, A. E. (1969) “Analysis and Prediction of Minimum Flow Rate for the Continuous Removal of Liquids from Gas Wells,” Journal of Petroleum Technology, Nov. 1969. pp. 1475–1482. | |
|
Guidelines from API RP14E |
Mokhatab S, Poe WA, Speight JG (2006) "Handbook of Natural Gas Transmission and Processing", Section 11.6 - Design Considerations on sales gas pipelines, subsection 11.6.1 - Line Sizing Criteria, Elsevier, 2006. |
PVT correlations are the same as in PVT tool.
