slap 26 rock optimized shaped charges4 x sandstone rock types 3 x charge designs 26g...
TRANSCRIPT
Rock optimized shaped charges
and Section IV testing
1
SLAP-26
Presenter: Christian Eitschberger.
Co-Author: Liam McNelis.
Test configuration & sandstone targets
Test results(TTP & flow ratio)
Introduction & Outline
2
SLAP-26
(TTP & flow ratio)
Analsyis of results
Summary (way foward)
4 x sandstone rock types
3 x charge designs
26g DP(Conventional)
26g Reactive Liner
26g Hard Rock Optimized
Section IV Test Configuration3
Overburdon6000 psi
Pore-Pressure2000 psi
SLAP-26
Wellbore3000 psi
Casing Thickness ½“
Cement Thickness ¾“
Cores Axially Flowed
Sandstone Targets (7“ x 30“)
4
SLAP-26
Sander SchilfUCS 6200psi Porosity 19.4 – 20.6% Perm. 120 – 150 mD
Carbon Tan UCS 8900psiPorosity 14.9 – 15.6% Perm. 25 – 30 mD
Main UCS 10150psiPorosity 11.6 – 11.8% Perm. 2 – 6 mD
Bunt UCS 11312psiPorosity 12.4 – 13.6% Perm. 40 – 50 mD
Depth of Penetration5
SLAP-26
26g RO: 36.4“ (concrete*)
26g RL: 32.1“ (API 19b)
26g DP: 42.6“ (API 19b)
26g Reactive Liner - 4 different rocks6
10,9“
11,8“
SLAP-26
Sander Schilf Carbon Tan Main Bunt
8,1“7,4“
Pre/Post Shot Permeability Ratio
7
SLAP-26
Main Sandstone – 3 different charges 8
Reactive Liner HRO DP
SLAP-26
EHD: 0.37“ – 0.41“ EHD: 0.35“ – 0.38“ EHD: 0.28“ – 0.30“
9
SLAP-26
Fluorescent Dye Radial Flow 10
Sander Schilf Sandstone: (UCS 6200psi) , 26g DP HMX/St
SLAP-26
Fluorescent dye indicates path of fluid flow
Fluorescent Dye Pictures
11
Main Sandstone: (UCS 10150psi), 26g Reactive Liner HMX/St
SLAP-26
Fluorescent dye indicates path of fluid flow
12
Bunt Sandstone: (UCS 11300psi), 26g DP HMX/St
Fluorescent dye indicates path of fluid flow
SLAP-26
Tip Fracture
13
Main Sandstone: UCS 10150psi, 26g DP HMX/St
Fluorescent dye indicates path of fluid flow
SLAP-26
Tip Fracture
Sufficient and good penetration is desirable but highest DoP, especially in concrete targets, does not automatically meanbest downhole performance
Best performance can be achieved by developing a chargespecifically for the rock type (not always feasible – time/cost/availablity of rock)
Reactive Liner charges appear to be more suited to harder
Summary
14
SLAP-26
Reactive Liner charges appear to be more suited to hardertighter sandstone rocks
Results indicate that sandstone rocks with medium-high porosity are more susceptable to skin effect and crushed zonethan the harder rocks, particularly with OB perforating
Need to repeat more tests with other test configurations toconfirm the effect of Overbalance and DUB on the results.
Thank you for your attention.
15
SLAP-26
Thank you for your attention.