Well Control Events

North Texas Exploration Production Safety Network

January 22, 2008

First Response

Notification, Zoning, Initial Containment & Evacuation

NotificationFIRST RESPONDER

Activate alarm/siren if available

NOTIFYUnit/Area Foreman

Activate appropriate response plan

NOTIFYERT Team & Well Control

Refer to Internal Reporting Criteria for minimum reporting/notification requirements. Complete remaining notifications accordingly.

HSESafety

Officer

HSERepresentati

ve

Production

Operations Mgr.Exec. V.P. Onshore

Production

Production Mgr.Exec. V.P. Offshore

AlternateInsurance

RegulatoryAffairs

HSEManager

Executive Staff(As Required)

Other Affiliates(As Required)

DrillingDrilling

Drilling Eng.Drilling Mgr.

Drilling Eng.Drilling Mgr.

ZONE CONTROL

SUPPORTZONE

CONTAMINATIONPERIMETER

solar radiation

Work several mins with PPE no shielding

40 sec to threshold of pain

1 min with PPE no shielding

6 sec to threshold ofpain (escape only)

Max with PPE and shielding

4 sec to threshold of pain

Damage to equipment

Spontaneous wood ignition

16 kW/m2

10 kW/m24.7 kW/m2 6.3 kW/m2

2.3 kW/m2

1 kW/m2

30 sec to threshold of pain

60 sec to

threshold of pain 30 sec to threshold of pain

12 kW/m2

Max for prolonged

exposure no PPE

Oil fire burns at approximately 4000 F and a gas fire at 6000 F.

Initial Containment Deploy Absorbent

Boom Build Retention Ponds Stop Run-off with

dams

Community Evacuation

INSTITUTING APPROPRIATE SAFETY MEASURES Site Safety Officer Identifying Hazards Accountability

Procedures Hazard Control Zones Selecting PPE Training Requirements Tailgate Safety Briefings Decontamination

Operations First Aid Emergency Medical

Procedures Site Safety Plan

PERSONNEL ACCOUNTABILITY

Check-In On-Scene Commander, Site Safety Officer Training, Clothing, and Briefing Tracking Hot or Warm Zone Personnel

Mobilization of Response Equipment Staging Area Road Clearance Off Site Staging (QUEUE) Logistics Officer Flagging personnel

Equipment Mobilized Athey Wagon 2 x 4000 gpm fire pumps and monitors Pipe rack and tools Halliburton Jet Cutter All equipment trucked or air freight

Air Transport

Well Control Operations Containment, Extinguishing, & Control

Filling Pits with Water from Pipelines

Drill Site SchematicTop View

Cat Walk

Rig

Well Head / BOP

Draw works

Mud Pumps

Engines

Mud Tanks

Accumulator

Reserve PitReserve Pit

Diesel Tank

Panic LineFlare LineMud / Gas SeparatorFlow Line Choke Manifold

Entrance Road

Warm Zone

Hot Zone

Radiant Heat Zone

Water Supply – Fire Can Be Extinguished By Various Means…

Solution Based On Circumstances Method of Supplying And Storing Excavating Large Earthen Pit (250’ x 250’ x 8’ ) Transported By Truck or Water Wells

Extinguishing Well Fires Pure Water (Fresh or Seawater) Dry Chemicals (Potassium Bicarbonate,

Sodium Bicarbonate, etc). Explosives Combinations of Explosives, Water, and/or

Chemicals