complementary development of siri reservoir tiago pitchon ...badejo)... · y of siri reservoir....

Third Meeting of the Heavy Oil Group

Complementary Development of Siri Reservoir

Tiago Pitchon SampaioPetrobras


80 km

Localization –

Badejo

Concession

N

•

Southwest of Campos Basin

• Water depth of 95 m


Development Plan (Conceptual Phase – 2A)

1 jackup1 FPSO Oil capacity: 50.000 bpd Liquid capacity: 100.000 bpd Lifting method: ESPHorizontal producing and injector wells (horizontal length up to 2000 m)Average liquid rate per well: 12.000 bpd Max. water injection rate per: 25.000 bpd PDG is installed in all wells

P01P02P03P04P05

P06P07

P08P09

307.000 308.000 309.000 310.000 311.000 312.000 313.000 314.000

307.000 308.000 309.000 310.000 311.000 312.000 313.000 314.000

7.485.0007.486.000

7.487.0007.488.000

7.489.000

7.48

5.00

07.

486.

000

7.48

7.00

07.

488.

000

7.48

9.00

07.

490.

000

0.00 0.25 0.50 0.75 1.00 miles

0.00 0.50 1.00 km

File: SIRI_PESS_jan11_QUser: CTURDate: 16/03/2011Scale: 1:48187Y/X: 1.00:1Axis Units: m

891

929

968

1.006

1.044

1.083

1.121

1.159

1.198

1.236

1.274

Concessão de BadejoGrid Top (m) 2015-12-31 K layer: 1

9 produtores

5 injetores

o10_11_P


Geological Section –

Badejo

Concession


Limits of the Reservoirs –

Badejo

Concession

Limits of Siri Reservoir

from previous

geological model.


General Info – History of Siri

Reservoir

1975 – Discovery of Badejo Field (1-RJS-13).Siri reservoir was not tested as there was no interest in heavy oil.

1981 – Start of the production of Badejo Field.

1997 – Formation test in 7-BD-11A.Production rate of 95 m3/d. Viscosity at reservoir of 320 – 380 cP.

2002 – Reservoir acquisition data well (ADW) proposed (horizontal well of 2000m).

2004 – Drilling of horizontal well, 9-BD-18HP.Oil rate during test: 350 m3/d with ESP. Bottom hole fluid monophasic sample. Pilot production system proposed.

Apr/2008 – Start of pilot production system.FPSO Cidade Rio das Ostras

2015 – Beginning of definitive production system.


General Data –

Reservoir Characteristics

RESERVOIR COQUINA BASALTO SIRI SÃO TOMÉ

Core samples(wells/meters)

1/82 7/153 2/80 1/14

Formation Lagoa Feia Cabiúnas Emborê Emborê

Lithology Limestone Basalt Limestone Sandstone

Area (km2) 15 28 23 6

Net Pay (m) 15 100 70 30

Porosity (%) 12 ? 25 26

Permeability (mD) 250 ? fracture 1-10000 10-1050

Water Saturation (%) 15 ? 36 24

Gas/Oil Contact (m) - - - -

Oil/Water Contact (m) -2938 -3113 -1050 -1236


General Data –

Fluid Characteristics

RESERVOIR COQUINA BASALTO SIRI SÃO TOMÉ

PVT analisys 15 1 2 1

OAPI 30 28 12.3 12.4

Pi (kgf/cm2) 293 350 100.7 120.5

Psat (kgf/cm2) 253 102 88 109.8

Pcurrent (kgf/cm2) 100 @ -2850 88 @ -2950 97 @ -995 119

Viscosity at reservoir (cP) 1.2 2.5 314 145

Temperature (oC) 88 90 48 53

Boi (m3/m3 ) 1.53 1.2 1.06 1.068

Bg (m3/m3) 0.0043@ 253 kgf/cm2

0.0089 @ 136 kgf/cm2

0.016@ 70 kgf/cm2

0.014 @ 70 kgf/cm2

Rsi (m3/m3) 156 58 25 27


Producing

Under development

Without project

Volumes e Reserves (MM m³) –

Dez/2011 Volumes e Reserves (MM m³) –

Dez/2011

Badejo ConcessionProduction

Zone VOIP Np RecoveredFraction (%) Reserve 1P Reserve 2P Reserve 3P Recovery

Factor (%)

CB-BD7D 6,675 0,975 14,6 0,065 0,065 0,065 15,6CB-RJS258 5,913 0,911 15,4 0,048 0,048 0,048 16,2CB-RJS341 6,847 1,050 15,3 0,037 0,037 0,037 15,9

CQ10-BD16DA 0,005 0,000 0,0 0,000 0,000 0,000 0,0CQ10-BD9D 0,002 0,000 0,0 0,000 0,000 0,000 0,0CQ40/50/60 7,213 2,248 31,2 0,076 0,076 0,076 32,2

SR 233,000 0,509 0,2 14,047 16,741 19,242 8,5ST 18,000 0,107 0,6 0,000 0,000 3,259 18,7


1981 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 2000 01 02 03 04 05 06 07 08 09 10 110

200

400

600

800

1000

1200

1400

1600

1800

2000

0

600000

1200000

1800000

2400000

3000000

3600000

4200000

4800000

5400000

6000000

DATA

Axis 1Qom ( m3/d ) Sigla_campo: BD

Axis 2Np ( m3 ) Sigla_campo: BD

General Data –

Field Production History

Platform Demobilization

Beginning of Siri’s

EWT (BD-18HP)

Beginning of São Tomé’s EWT (BD-20HP)

Ending of EWT


General Data –

Projects Production Prevision MP e DP

Previsão de Produção

0

1000

2000

3000

4000

5000

6000

7000

8000

9000

2012 2014 2016 2018 2020 2022 2024 2026 2028 2030 2032 2034 2036 2038 2040

Qo

(m3/

d)

Siri MP

1st oil: Out/15

Economic limit em

2039

OBS: Siri’s

forecast based on pessimist geological model generated before ADWs.

PN 2012-16 e Reserves SPE


• Reservoir-

Water injection: low swap efficiency due the mobility ratio favorable to water;

-

Reservoir pressure near the bubble point (ΔP~12 kgf/cm2);

-

Improve the efficiency of well acidizing to maximize the effective horizontal length (up to 2000m).

• Other areas- Flow assurance in wells with oil viscosity of 314 cP

(reservoir condition);

- Drilling/completion wells in shallow reservoir (~1000m) and with ESP;

- Avoid the occurrence of gas lock in ESP;

- Temperature in proccess

system over than 130oC;

- Difficulties in gas/oil separation (need of chemical products injection).

Siri

Reservoir –

Challenges

complementary development of siri reservoir tiago pitchon ...badejo)... · y of siri reservoir....

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