fracturas en pozos no convencionales -...

Presenter’s Name Date

Fracturas en pozos no convencionales

© 2009 Weatherford. All rights reserved.

• 1,200,000 HHP

• 2011: aprox.10,000 fracturas

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Experiencias en fracturas no convencionales


Pozo Tipo - EEUU

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Plug & Perf

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Etapas Fractura: 16 Distancia e/tapones (mts): 111 Clusters por etapa: 8 Distancia e/clusters (mts): 12 Total de Fracturas: 128


Plug & perf- Esquema de disparos

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Stage 1 top bottom Stage 5 top bottom Stage 9 top bottom Stage 13 top bottom Frac plug 1 16,341

Distance between frac plugs

1 16,615 16,616 1 15,215 15216 1 13,751 13752 1 12,287 12288 frac plug 2 16,017 3242 16,583 16,584 2 15,177 15178 2 13,713 13714 2 12,249 12250 frac plug 3 15,631 3863 16,551 16,552 3 15,139 15140 3 13,675 13676 3 12,211 12212 frac plug 4 15,265 3664 16,519 16,520 4 15,101 15102 4 13,637 13638 4 12,173 12174 frac plug 5 14,899 3665 16,487 16,488 5 15,063 15064 5 13,599 13600 5 12,135 12136 frac plug 6 14,533 3666 16,455 16,456 6 15,025 15026 6 13,561 13562 6 12,097 12098 frac plug 7 14,167 3667 16,423 16,424 7 14,987 14988 7 13,523 13524 7 12,059 12060 frac plug 8 13,801 3668 16,391 16,392 8 14,949 14950 8 13,485 13486 8 12,021 12022 frac plug 9 13,435 366

Frac plug 1 16,341 Frac plug 5 14,899 Frac plug 9 13,435 Frac plug 13 11,971 11972 frac plug 10 13,069 366frac plug 11 12,703 366

Stage 2 top bottom Stage 6 top bottom Stage 10 top bottom Stage 14 top bottom frac plug 12 12,337 3661 16,291 16,292 1 14,849 14850 1 13,385 13386 1 11,921 11922 frac plug 13 11,971 3662 16,259 16260 2 14,811 14812 2 13,347 13348 2 11,883 11884 frac plug 14 11,605 3663 16,227 16228 3 14,773 14774 3 13,309 13310 3 11,845 118464 16,195 16196 4 14,735 14736 4 13,271 13272 4 11,807 118085 16,163 16164 5 14,697 14698 5 13,233 13234 5 11,769 117706 16,131 16132 6 14,659 14660 6 13,195 13196 6 11,731 117327 16,099 16100 7 14,621 14622 7 13,157 13158 7 11,693 116948 16,067 16068 8 14,583 14584 8 13,119 13120 8 11,655 11656

Frac plug 2 16,017 Frac plug 6 14,533 Frac plug 10 13,069 Frac plug 14 11,605 11606Lower Eagleford is in close proximity to the Buda @ 16,000'Stage 3 top bottom Stage 7 top bottom Stage 11 top bottom Stage 15 top bottom

1 15,947 15948 1 14,483 14484 1 13,019 13020 1 11,555 115562 15,909 15910 2 14,445 14446 2 12,981 12982 2 11,517 115183 15,871 15872 3 14,407 14408 3 12,943 12944 3 11,479 114804 15,833 15834 4 14,369 14370 4 12,905 12906 4 11,441 114425 15,795 15796 5 14,331 14332 5 12,867 12868 5 11,403 114046 15,757 15758 6 14,293 14294 6 12,829 12830 6 11,365 113667 15,719 15720 7 14,255 14256 7 12,791 12792 7 11,327 113288 15,681 15682 8 14,217 14218 8 12,753 12754 8 11,289 11290

Frac plug 3 15,631 Frac plug 7 14,167 Frac plug 11 12,703 Frac plug 15 11,239 11240

Stage 4 top bottom Stage 8 top bottom Stage 12 top bottom Stage 16 top bottom1 15,581 15582 1 14,117 14118 1 12,653 12654 1 11,189 111902 15,543 15544 2 14,079 14080 2 12,615 12616 2 11,159 111603 15,505 15506 3 14,041 14042 3 12,577 12578 3 11,129 111304 15,467 15468 4 14,003 14004 4 12,539 12540 4 11,099 111005 15,429 15430 5 13,965 13966 5 12,501 12502 5 11,069 110706 15,391 15392 6 13,927 13928 6 12,463 12464 6 11,039 110407 15,353 15354 7 13,889 13890 7 12,425 12426 7 11,009 110108 15,315 15316 8 13,851 13852 8 12,387 12388 8 10,979 10980

Frac plug 4 15,265 Frac plug 8 13,801 Frac plug 12 12,337


Plug & Perf – Secuencia de operaciones

– Calibrar y punzar 1era etapa con CT

– Desmontar CT, montar set de fracturas y WL

– Fracturar 1era Etapa

– Pump Down WL con Frac plug y cañones

– Sacar WL, cerrar válvula superior

– Bombear top ball y fracturar 2da etapa

– Plug & Perf etapas subsiguientes

– Desmantelar set de fracturas, instalar CT

– Moler tapones y producir pozo

– Promedio: 4 etapas por día

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Multizone Stimulation Technologies - JITP

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Multizone Stimulation Technologies – ACT Frac

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Sistemas de multi-fracturas Open Hole

Zone Select

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ZoneSelectTM – Multi-zone completion system

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Tapones de material compuesto

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Composite Plugs

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Composite Pump Down Plugs


Diseño Fractura – Slickwater

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Gráfica Fractura – Slickwater

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Swift Energy San Miguel Ranch #1Stage 6 McMullen County

Eagle Ford Shale Engineer Plot

Time (min)

Treating Pressure 1 (psi) Slurry Flow Rate (bpm)Proppant Conc BLND (ppg) Proppant Conc IL #2 (lbm/gal)Btm Prop Conc (ppg)

45.0 75.5 106.0 136.5 167.0 197.5 0

2500

5000

7500

10000

12500

0.0

40.0

80.0

120.0

160.0

200.0

0.00

2.00

4.00

6.00

8.00

10.00

0.00

2.00

4.00

6.00

8.00

10.00

0.00

2.00

4.00

6.00

8.00

10.00

ISIP 5133 psi

100 MeshAcid 40/70 White Start Dirt Sweep


Diseño Fractura – Hibrida X-linked EagleFord

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Gráfica Fractura – hibrida X-linked EagleFord

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Tendencias

• Laterales mas largos

– Equipamiento (presiones, HHP, CT, wireline, tapones, etc…)

– Mayor cantidad de fracturas

• Espaciamiento de clusters según perfiles (sweet spots)

• Mejor divergencia (menos clusters y mas etapas de fractura)

• Mayor conductividad, geles croslinkeados

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Lay out Plug & perf – I (40.000 HHP)

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Lay Out Plug & perf – II (56,000 HHP)

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Lay Out Plug & perf – III (2 x 16,000 HHP)

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Lay out Plug & perf – IV (Locación seca)

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Fracturas en Argentina

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• Lajas, Molles

– Fernandez Oro / Centenario

– Caudales de 40 a 50 bpm

– Bajas cargas poliméricas (hasta 18 lbs/1000 gal)

– Promedio 1500 sks

– Fracturas híbridas con gel lineal – gel activado

– Pozos verticales, tapones composite

– Una etapa cada 14 horas


Tratamiento de fractura Lajas

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Carta bombeo fractura Lajas

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Fracturas en Vaca Muerta

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– Plaza Huincul, pozos someros

– Fracturas híbridas con slick water – gel activado

– Hasta 60 BPM

– Pozos verticales


Diseño de fractura Vaca Muerta

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Stage #

Stage Type Elapsed

Time min:sec

Fluid Type

Clean Volume

(gal)

Prop Conc (ppg)

Stage Prop. (klbs)

Slurry Rate

(bpm)

Proppant Type

Wellbore Fluid FRESH WATER 3582 1 Water injection 14:34 Slickwater 13121 0.00 0.0 44.11 2 Shut-in 46:02 SHUT-IN 0 0.00 0.0 0.00 3 Main frac pad 66:27 Slickwater 48459 0.00 0.0 56.51 4 Main frac

slurry 81:38 Slickwater 37609 0.41 15.5 59.85 Sinter Lite 40/80

5 Main frac slurry

93:57 Slickwater 30532 0.68 20.7 60.40 Sinter Lite 40/80

6 Main frac pad 96:39 Slickwater 6787 0.02 0.1 59.71 Sintered Bauxite 30/60

7 Main frac slurry

111:29 Slickwater 36262 0.92 33.3 60.16 Sintered Bauxite 30/60

8 Main frac slurry


9 Main frac pad 128:59 Slickwater 6482 0.36 2.3 59.37 Sintered Bauxite 30/60

10 Main frac slurry


11 Main frac slurry


12 Main frac pad 151:28 MagnumFrac H 20 9160 1.54 14.1 61.54 EconoProp 20/40 13 Main frac

slurry 159:06 MagnumFrac H 20 18939 0.90 17.0 61.71 EconoProp 20/40

14 Main frac slurry

166:08 MagnumFrac H 20 16629 1.87 31.1 61.57 EconoProp 20/40

15 Main frac slurry

174:58 MagnumFrac H 20 19795 3.02 59.8 61.36 EconoProp 20/40

16 Main frac flush 176:35 Slickwater 3755 0.39 1.5 56.72 EconoProp 20/40 17 Shut-in 2176:35 SHUT-IN 0 0.00 0.0 0.00


Carta de bombeo Vaca Muerta

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Equipos de fracturas en Argentina

• Equipos en Argentina

– seis bombas (12,000 hhp)

– dos blenders (100 y 40 bpm), dos unidades de hidratación, dos sand feeders, tres sand dumpers, dos data vans, dos manifolds, doce piletas, otros..

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• Equipamiento en frontera

– siete bombas (14,000 hhp), un blender (100 bpm), una data van, un sand feeder

– un set de CT incluyendo bomba y nitrógeno

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• Equipamiento en construcción

– 10,000 hhp, un manifold, una unidad de hidratación, una unidad dosificadora químicos C10

– segundo set de CT

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