The goal of rNodal is to provide nodal analysis for oil and gas wells.
You can install rNodal from github with:
# install.packages("devtools")
devtools::install_github("f0nzie/rNodal")
This is a basic example which shows you how to solve a common problem:
## basic example code
zFactor
zFactor
is a R package. Calling from CRAN.
We will use zFactor for gas compressibility calculations.
# use the new library zFactor
library(zFactor)
z.HallYarborough(pres.pr = 4.5, temp.pr = 1.4)
#> [1] 0.7373812
z.DranchukAbuKassem(pres.pr = 4.5, temp.pr = 1.4)
#> [1] 0.7396345
z.BeggsBrill(pres.pr = 4.5, temp.pr = 1.4)
#> [1] 0.7343367
z.Ann10(pres.pr = 4.5, temp.pr = 1.4)
#> [1] 0.736032
z.Papp(pres.pr = 4.5, temp.pr = 1.4)
#> [1] 0.7299354
Start by looking at the examples in the vignettes. We will use in this
example VLP Brown - Example C13
.
This is example C.13 in the Kermit Brown book.
We enter the well data with the function setWellInput
:
input.example.C13 <- setWellInput(field.name = "HAGBR.MOD",
well.name = "Brown_C13",
depth.wh = 0, depth.bh = 2670,
diam.in = 1.995,
GLR = 500, liq.rt = 1000, wcut = 0.6,
thp = 500, tht = 120, bht = 150,
API = 22, gas.sg = 0.65,
wat.sg = 1.07, if.tens = 30)
The field name and well name are used for archival purposes.
The parameters of the model consist of:
vlp.model
: the correlation or mechanistical model
segments
: the number of segments to split the well
tol
: the tolerance of the delta-P iterations
well.model <- setVLPmodel(vlp.model = "hagbr.mod",
segments = 11,
tol = 0.000001)
To run the model is necessary to provide:
well.input
: all the well parameters as entered in the first step
well.model
: the VLP model as entered in the second step
runVLP(well.input = input.example.C13, well.model))
The results are given in the form of a dataframe where the rows represent the number of segment plus one and the columns are the calculations or variables.
Add the following code to your website.
For more information on customizing the embed code, read Embedding Snippets.