Blowout and Snubbing Kill Simulation Results

Table -1: Scenario 1. Blowout rates for different scenarios

Scenario

Flow path

Total Gas rate

MMscfd

S1a-5

5½" tbg snubbed in,
exit at 550 m 1.4 sg emw

409.6

S1a-7

7" csg snubbed in,
exit at 550 m 1.4 sg emw

396.3

S1b-5

5½" tbg snubbed in,
exit at 550 m 1.03 sg emw

413.2

S1b-7

7" csg snubbed in,
exit at 550 m 1.03 sg emw

399.9

Table -2: Scenario 1. Kill requirement and time to kill. Snubbed in pipe to 13-3/8" shoe.

Scenario

Kill point

Fluid

Kill rate

Pump Pressure

Pump Power

Volume *)

[sg]

[bpm]

[bar]

[hhp]

[bbls]

S1a-5

5½" tbg snubbed in to 13 3/8" csg shoe

15

175

> 1000 bar

-

2 625

S1a-5

5½" tbg snubbed in to 13 3/8" csg shoe

18

110

> 1000 bar

-

3 300

S1a-7

7" tbg snubbed in to 13 3/8" csg shoe

15

160

> 1000 bar

-

3 200

S1a-7

7" tbg snubbed in to 13 3/8" csg shoe

18

105

> 1000 bar

-

3 150

S1b-5

5½" tbg snubbed in to 13 3/8" csg shoe

15

185

> 1000 bar

-

2 775

S1b-5

5½" tbg snubbed in to 13 3/8" csg shoe

18

115

> 1000 bar

-

2 300

S1b-7

7" tbg snubbed in to 13 3/8" csg shoe

15

170

> 1000 bar

-

5 100

S1b-7

7" tbg snubbed in to 13 3/8" csg shoe

18

110

> 1000 bar

-

2 200

 

*) Required volume to stop inflow. Add. circulation must be added.

Table -3: Scenario 2. Blowout rates for different scenarios

Scenario

Flow path

Total Gas rate

MMscfd

S2a-5

5½" tbg snubbed in,
exit at 550 m 1.4 sg emw

334

S2a-7

7" csg snubbed in,
exit at 550 m 1.4 sg emw

147

S2b-5

5½" tbg snubbed in,
exit at 550 m 1.03 sg emw

336

S2b-7

7" csg snubbed in,
exit at 550 m 1.03 sg emw

148

Table -4: Scenario 2. Kill requirement and time to kill. Snubbed in pipe to 13-3/8" shoe.

Scenario

Kill point

Fluid

Kill rate

Pump Pressure

Pump Power

Volume *)

[sg]

[bpm]

[bar]

[hhp]

[bbls]

S2a-5

5½" tbg snubbed in to 9-7/8" csg shoe

15

50

1040

18 000

1 000

S2a-5

5½" tbg snubbed in to 9-7/8" csg shoe

18

40

730

10 000

600

S2a-7

7" tbg snubbed in to 9-7/8" csg shoe

15

15

90

485

600

S2a-7

7" tbg snubbed in to 9-7/8" csg shoe

18

10

<50

<100

200

S2b-5

5½" tbg snubbed in to 9-7/8" csg shoe

15

50

1040

18 000

1 250

S2b-5

5½" tbg snubbed in to 9-7/8" csg shoe

18

40

730

10 000

800

S2b-7

7" tbg snubbed in to 9-7/8" csg shoe

15

18

105

670

270

S2b-7

7" tbg snubbed in to 9-7/8" csg shoe

18

12

<50

<100

480