Difference between revisions of "Hydraulic Fracturing Design Optimization - Bakken Case Study"

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<table border="1" cellpadding="3" cellspacing="1">
 
<table border="1" cellpadding="3" cellspacing="1">
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<tr><th>Interval</th><th>Depth<BR/> (ft)</th><th>Zone<BR/> Thickness <BR/>(ft)</th><th>In Situ<BR/> Stress <BR/>(psi)</th><th>Poisson's<BR/> Ratio</th><th>Young's<BR/> Modulus <BR/>(10^6 psi)</th><th>Fracture<BR/> Toughness <BR/>(psi/in^0.5)</th></tr>
+
<tr ><th>CASE</th><th>1</th><th>2</th><th>3</th><th>4</th><th>5</th><th>6</th></tr>
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  <tr><td colspan="7">Single-Layer Case</td></tr>
+
<tr><td>Formation Properties </td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
−
  <tr><td>1</td><td>9170-9340</td><td>170</td><td>5700</td><td>0.21</td><td>8.5</td><td>2000</td></tr>
+
  <tr><td>Resesvoir and rock data</td><td>Single-Layer</td><td>Single-Layer</td><td>3-Layer </td><td>3-Layer </td><td>5-Layer</td><td>5-Layer</td></tr>
−
  <tr><td colspan="7">3-Layer Case</td></tr>
+
  <tr><td>Fluid Properties </td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
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  <tr><td>1</td><td>8990-9170</td><td>180</td><td>7150</td><td>0.3</td><td>6.5</td><td>2000</td></tr>
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  <tr><td>Viscosity, cP</td><td>200</td><td>&nbsp;</td><td>200</td><td>&nbsp;</td><td>200</td><td>&nbsp;</td></tr>
−
  <tr><td>2</td><td>9170-9340</td><td>170</td><td>5700</td><td>0.21</td><td>8.5</td><td>2000</td></tr>
+
  <tr><td>K, (lbf-sec^n)/ft^2</td><td>&nbsp;</td><td>0.06</td><td>&nbsp;</td><td>0.06</td><td>&nbsp;</td><td>0.06</td></tr>
−
  <tr><td>3</td><td>9340-9650</td><td>310</td><td>7350</td><td>0.29</td><td>5.5</td><td>2000</td></tr>
+
  <tr><td>n</td><td>&nbsp;</td><td>0.5</td><td>&nbsp;</td><td>0.5</td><td>&nbsp;</td><td>0.5</td></tr>
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  <tr><td colspan="7">5-Layer Case</td></tr>
+
  <tr><td>Leak-off, ft/min^0.5 </td><td>0.00025</td><td>0.00025</td><td>0.00025</td><td>0.00025</td><td>0.00025</td><td>0.00025</td></tr>
−
  <tr><td>1</td><td>8990-9170</td><td>180</td><td>7150</td><td>0.3</td><td>6.5</td><td>2000</td></tr>
+
  <tr><td>Spurt loss, gal/ft^2</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td><td>0</td></tr>
−
  <tr><td>2</td><td>9170-9340</td><td>170</td><td>5700</td><td>0.21</td><td>8.5</td><td>2000</td></tr>
+
  <tr><td>Other Data</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td></tr>
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  <tr><td>3</td><td>9340-9380</td><td>40</td><td>7350</td><td>0.26</td><td>5.4</td><td>2000</td></tr>
+
  <tr><td>Pumping rate, bbl/min </td><td>50</td><td>50</td><td>50</td><td>50</td><td>50</td><td>50</td></tr>
−
  <tr><td>4</td><td>9380-9455</td><td>75</td><td>5800</td><td>0.2</td><td>7.9</td><td>2000</td></tr>
+
  <tr><td>Pumping volume, bbl</td><td>10000</td><td>10000</td><td>10000</td><td>10000</td><td>10000</td><td>10000</td></tr>
−
  <tr><td>5</td><td>9455-9650</td><td>195</td><td>8200</td><td>0.3</td><td>4.0</td><td>2000</td></tr>
+
  <tr><td>Pupming time, min</td><td>200</td><td>200</td><td>200</td><td>200</td><td>200</td><td>200</td></tr>
 +
  <tr><td>Proppant</td><td>None</td><td>None</td><td>None</td><td>None</td><td>None</td><td>None</td></tr>
 +
 
 
</table>
 
</table>
  

Revision as of 07:26, 21 November 2019

Hydraulic Fracturing Design Optimization - Bakken Case Study

The case study is prepared to illustrate the capabilities of the optiFracMS multistage fracturing optimization software.

The goal of the study is to optimize a fracturing design for a Bakken formation.

Two fracture design cases were considered:

  1. Operating company fracture design based on a Big Data application
  2. optiFracMS optimized fracturing design


For the both cases a production forecast was calculated and cumulative oil production was compared.

Inputs

Rock and reservoir data:

CASE123456
Formation Properties       
Resesvoir and rock dataSingle-LayerSingle-Layer3-Layer 3-Layer 5-Layer5-Layer
Fluid Properties       
Viscosity, cP200 200 200 
K, (lbf-sec^n)/ft^2 0.06 0.06 0.06
n 0.5 0.5 0.5
Leak-off, ft/min^0.5 0.000250.000250.000250.000250.000250.00025
Spurt loss, gal/ft^2000000
Other Data      
Pumping rate, bbl/min 505050505050
Pumping volume, bbl100001000010000100001000010000
Pupming time, min200200200200200200
ProppantNoneNoneNoneNoneNoneNone

Operating company design

optiFracMS design

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