Difference between revisions of "Category: OptiFracMS"

Revision as of 14:55, 11 July 2019

Multistage Fracturing Software

pengtools optiFracMS

optiFracMS is a software to optimize the number of hydraulic fractures in horizontal well ^[1].

For the given set of reservoir properties and the proppant mass optiFracMS calculates optimal number of transverse hydraulic fractures and required fractures geometry to maximize well productivity index.

optiFracMS is available online at www.pengtools.com.

Typical applications

Multistage Fracturing Design in tight oil and gas reservoirs
- How many fractures are required to maximize production?
  - Number of fractures, n.
- What fractures geometry is required to maximize production?
  - Dimensionless Fracture conductivity, C_fD .
  - Fracture half length, X_f .
  - Fracture width, w .
  - Fracture penetration, I_x .
- What would be the optimal productivity index?
  - Dimensionless productivity index, J_D .
Multistage Post fracture performance reviews
- Find out how far your well's productivity from where it should be (from the optimum)
Multistage Fracturing Sensitivity Studies and Benchmarking

Math & Physics

Horizontal well with multiple transverse fractures in a rectangular drainage area

J_D=\frac{3}{\pi}\ \frac{N_p}{X_e/Y_e}

- technical potential for multiple fractures^[1],

x_{e_D}=\frac{1}{y_{e_D}}

inverse of the aspect ratio of the single-fracture drainage area^[1],

y_{e_D}=\frac{Y_e}{nX_e}

- aspect ratio of the single-fracture drainage area^[1],

N_p=\frac{2 k_f V_f}{k V_r}

- proppant numer,

I_x=\frac{2x_f}{X_e}

- penetration ratio,

C_{f_D}=\frac{k_f w_f}{k x_f}

- dimensionless fracture conductivity,

Type Curves

Flow Diagram

Workflow

Physical Constraints

Main features

Plot of J_D as a function of n and N_p as parameter.
Plot of J_D as a function of N_p showing the width constraint influence.
Plot of J_D and w_f as a function of n for the given N_p .
Plot of J_D as a function of C_fD for the given n.
Design optimization curves which corresponds to the maximum J_D values for different N_p and n.
Optimum number of fractures n and well J_D.
Practical constrains envelope – minimum fracture width and choke skin effect.
Sensitivity for the different from the optimal n, X_f, I_x, C_fD, w_f.
Hydraulic fracturing proppant catalog with the predefined proppant properties.

Interface features

Save and share models with colleagues
Last saved model on current computer and browser is automatically opened
Metric and US oilfield units
Save as image and print plots by means of chart context menu (button at the upper-right corner of chart)
Download pdf report with input parameters, calculated values and plots
Select and copy results to Excel or other applications

References

↑ ^1.0 ^1.1 ^1.2 ^1.3 Guk, Vyacheslav; Tuzovskiy, Mikhail; Wolcott, Don; Mach, Joe (June 2019). "Optimizing Number of Fractures in Horizontal Well". SPE Journal. Society of Petroleum Engineers. 24 (SPE-174772-PA).

Pages in category "OptiFracMS"

The following 7 pages are in this category, out of 7 total.

4

4/π stimulated well potential

6

6/π stimulated well potential

H

J

JD

O

OptiFracMS

[optifracMS-1] 1.0 ^1.1 ^1.2 ^1.3 Guk, Vyacheslav; Tuzovskiy, Mikhail; Wolcott, Don; Mach, Joe (June 2019). "Optimizing Number of Fractures in Horizontal Well". SPE Journal. Society of Petroleum Engineers. 24 (SPE-174772-PA).

[1]

@@ Line 29: / Line 29: @@
 [[File:multistage-fracture-notation.png|thumb|right|400px| Horizontal well with multiple transverse fractures in a rectangular drainage area ]]
-:<math>J_D=\frac{3}{\pi}\ \frac{N_p}{X_e Y_e}}</math> - technical potential for multiple fractures<ref name= optifracMS/>,
+:<math>J_D=\frac{3}{\pi}\ \frac{N_p}{X_e/Y_e}</math> - technical potential for multiple fractures<ref name= optifracMS/>,
 :<math>x_{e_D}=\frac{1}{y_{e_D}}</math> inverse of the aspect ratio of the single-fracture drainage area<ref name= optifracMS/>,

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