Risk Register Rig Kedarnath Drilling Services MR,ONGC, MumbaiDOC. NO. QHSE/DS/KDN/RR/RAC/01This page purposely left BlankSAGAR SAFETY PROCEDURE MANUAL RISK ASSESMENT CRIETERIA DOC. NO. QHSE/DS/S__/RR/RAC/01

QHSE

IDENTIFICA TION OF HAZARDS, ASSESSMEN TS OF RISKS AND IMPELMEN TATION OF CONTROLS The following risk ranking matrix has been used for assessing the risks and its controls Consequence factors and rank tables

Severity of incident (or consequences)

FATAL / HIGH POTENTIAL MAJOR Personnel Fatality or permanently disabling injury Man Overboard Environmental significant release with serious off-site impact and more likely than not to cause immediate or long term health effect Property Damage Blowout/ Explosion / Major Fire Helicopter Crash Cost (Equipment damage)major or total destruction to process areas estimated at a cost more than Rs 5,00,000/(Five lakhs) Shut Down More than 24 hours down time Public image: National and International

MAJOR Personnel one or more serious injury/disabling injury man hour loss more than 500 hrs Environmental significant release with serious off-site impact Property Damage Vessel Collision Cost(Equipment damage) major damage to process areas; estimated at a cost more than Rs 1,00,000/(one lakh) up to Rs 5,00,000/(Five lakhs) Shut Down / Failure Critical Equipments More than 12 hours. Public image: Industry wide attention Fire: 15 mins and above Explosion

MINOR Perso severe injury re than one day of Environmenta which results in notification or Cost(Equipme some equipmen estimated cost (Five thousand 1,00,000/-(One Down Mo hours. Public i Fire: Less t

SCORE Probability of occurrence (or likelihood)

5 Negligible No known occurrences in the industry A

4 Low Known to have occurred in the industry B

3

Med

GRADE

Known to have com C

METHODOLOGY OF RISK ASSESSMENT Identification of Hazards and

subsequent risk associated with work activity has been done through HAZID and HAZOP Severity is based on the Classification of incidents by OISD and Statutory norms Probability of occurrence is based on the Rig cycle, Accident analysis with in rig, Company and E&P industry for the last Ten years as per the data available RISK MATRIX The Risk Matrix is 5 x 5 with Severity along one axis and Likelihood along the other. The team should rate the Severity and Likelihood of each hazard using the appropriate criteria below. The Severity is divided into three categories: People, Assets, and Environment. The team should use whichever category results in the highest (worst) Risk Category. Severity Rankings (Overall) Recordable (1) Hazard may reasonably result in a First Aid Case Significant (2) Hazard may reasonably result in a Medical Treatment Case and smaller losses Minor (3) Hazard may reasonably result in a Serious Injury Case and moderate losses Major (4) -Hazard may reasonably result in a severe injury or property damage or Environmental Impact Fatal/High Potential Major (5) Hazard may reasonably result in multiple Fatalities or Major loss of property Likelihood Rankings Negligible (A) Incident not known to have occurred in the industry Low (B) Incident known to have occurred in the industry Medium (C) Incident occurs in the company

High (D) Incident occurs in the Asset/Drilling Services Frequent (E) Incident occurs on the given rig After the Likelihood and Severity Rankings for the Hazard are determined, use the Risk Matrix to determine the Risk Category. Always use the Highest or worse severity if the Severity Rankings for People, Assets, and/or Environment are different. Any hazards that have a Risk Category of High require a Recommendation unless considered ALARP. Any hazards that have a Risk Category of Medium need to be reviewed by the team to determine if the risk If the risk is not considered ALARP, a recommendation should be made. This recommendation could be hazard elimination, prevention, mitigation or for further investigation.

Recommendation is not essential for hazards that have a Risk Category of Low. However, the team should make recommendations if the hazard can be eliminated or the risk reduced. Acceptable hazards should be managed for continuous improvement.

RISK MATRIX

Recordable SignificantS e v er it y

People First aid incidents Less than one day off MTC

Asset No recordable equipment damage Minimal equipment damage at a minimal cost up to Rs 5000 (Five thousand)

Environment environmentally recordable event Significant Environmentally Incident

Minor

not severe injury resulting in more than one day off MTC

Cost(Equipment damage) Damage cost Rs 5000-1,00,000/Shut Down More than 06 hours. Fire: less than 15 minutes Cost(Equipment damage) major damage to rig estimated at a cost more than Rs 1,00,000/-(one lakh) up to Rs 5,00,000/-(Five lakhs) Shut Down / Failure Critical Equipments More than 12 hours. Fire: 15 mins and above

Release which results in agency notification or permit violation

Major

One ormore serious injury/disab ling injury Man hour loss more than 500 hrs

Significant release with serious off-site impact

FATAL / HIGH POTENTIAL MAJOR

Fatality or permanently disabling injury Man Overboard

Cost (Equipment damage) major or total destruction to process areas estimated at a cost more than Rs 5,00,000/-(Five lakhs) Shut Down More than 24 hours down time

Significant release with serious off-site impact and more likely than not to cause immediate or long term health effect

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Operation of OSV/M SV

Major collision of vessel into rig (jacked up).

Possible damage to legs, hull and other equipment. Disruption of operations. Possible loss of vessel. Possible personnel injury or fatalities. Possible serious environmental pollution.

Obstruction lights, ships horn, foghorn. Possible visual identification. Rig location charted as an obstruction. Adherence to Marine Procedure Communication Facilities with base & other installations Ability to communicate with other vessels. Ability to abandon rig.

Major collision of vessel with rig (in transit).

Possible damage to hull and other equipment. Possible major structural damage and possible loss of rig. Possible personnel injury or fatalities.

Company procedures to ensure quality seamanship of towing vessel. All watertight barriers sealed during transit. Power of towing vessels meets predetermined rating. Rig movers qualified by third party.

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Hot work and Welding activity

Fire And Explosion

Equipment Damage Damage to the eyes and skin of the welder Getting burned by fires and explosions

Elimination / Substitution-Perform hot work in a safe location or fire hazards removed or covered Control Permit to work system Adherence to safe code of practice Vol. 1, Part IV, Section 12 (Welding and cutting) Monitoring of the LEL shall be continuous until the hot work is completed To protect the immovable fire hazards Use guards to confine the heat, sparks, and slag, and Do not perform hot work where flammable vapors or combustible materials exist. Work and equipment should be relocated outside of the hazardous areas, when possible

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Rig Move(Offs h ore)

Structural damage to rig Structural damage to platform Wells damaged Pipeline damage Leg Punch Through Tilting of Rig

Loss of company property Production loss Opportunity loss Structural damage Personnel injuries or fatalities

Pre-move meeting/rig move meeting prior to the move in the presence of surveyor Inspection of OSV/Tow boat prior to move Updated seabed survey report and pipeline drawings used in rig move planning Relevant preloading guidelines to be adhered to as per RCPVol-I Examine the weather forecast of the intended transit time Pre-move meeting in the presence of rig I/C Observe daily weather forecasts & monitoring during transit Availability of anchoring facility Ensure Rig has enough strength to withstand Presence of surveyor at the time of mobilization Comprehensive Soil Test Location History Procedures for jacking, pre-loading ERP Drills

Drilling ( Prior actions to start of drilling operations)

Physical injury Equipment damage Environment damage

Major injury Loss of property

JSA(Prespud) checklist as per OISDRP-190 Executing check list

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Drilling (Handling of tubular)

Physical injury Equipment damage

Major injury Loss of property -Body contact with moving parts -Bursting of oil line

Tubular handling appraisal procedure guidelines of IADC Adherence to SOP as per OISD187,190 Safe work practices as per RCP-Vol-I

Drilling (Tripping)

Occupational ard Blow out Fire

Possible major structural damage. Possible multiple personnel injuries or fatalities. Possible loss of rig. Possible environmental impact. Equipment damage(Travelling block hitting the crown block/derrick floor)

Procedures and training. Surface isolation equipment (BOP, etc.). Maintenance and testing of equipment. Instrumentation and indication of well status. Redundant BOP controls. Use of mechanical equipment such as pipe spinner, automatic slips, pipe handling equipment, Kelly spinner or top drive etc. to eliminate the occupational hazard Ensure that Crown-o-matic/twin stop device is installed and working properly Adherence to well control policy Special considerations during tripping as per guidelines of OISD-RP-174 Redundant BOP controls. Agreement with major well control company for call out services Follow and activate ERP/RCP

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Helicopter operations

Helicopter Collision at helideck and other than helideck

Possible structural damage to rig. Disruption of operations. Possible fire risk (possible multiple fires). Possible personnel multiple injuries or fatalities. Possible environmental impact.

Clear helideck lighting and markings. Good communication with helicopter. Cranes racked no one in crane cabins during helideck operations. Policies and procedures. Helicopter maintenance and flying practices are governed by DGCA a regulatory body. Adherence to Safe Code of Practice Vol. 1, Part IV, Section 6 Designated HLO & HLA

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Crane Operatio n

Dropped objects and Blocks

Possible personnel injuries and fatalities. Possible equipment or structural damage.

Proper signaling, communication. Proper lifting equipment. Preventative maintenance of crane and lifting equipment. Proper training of personnel. Proper manifesting. DROPS Program to be Implemented. Operating Work Instructions as per Code of Safe Practice Vol. 1, Part IV, Section 11 (Material Handling Operation) Proper procedure and posture while lifting the materials. Each operator of a crane or other hoisting device be thoroughly trained and properly licensed to operate. All crane operations shall be supervised by designated officer Crane operators shall follow lifting directions ONLY from assigned signalers. However an emergency stop signal from any one on the location must be obeyed immediately All safety devices provided on a crane such as boom stops, boom angle indicators, antitwo blocking switches shall be kept in proper working order Before attempting any lift with crane, rig operator shall first determine the weight of the load . No lift shall be attempted if load is beyond cranes rated lifting capacity as listed on chart for current boom angle

Page 10 of 21

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Cementing activity

Personalinjury due to high pressure surge

Severe injury to persons

Operating Work Instructions as per Code of Safe Practice Vol. 1, Part IV, Section 11 (Material Handling Operation) The cementing head shall be secured to the elevator links with wire rope safety line All piping systems which will be exposed to either pump or well pressure shall be securely stacked down or secured in such a manner as to prevent any undue whipping of the pipe if a failure occurs

Material handling manually

Occupational Health Hazard

Lifting heavy load manually Occupational disease like back ache problem

Elimination / SubstitutionMechanized Lifting equipments to be use where ever possible Control Operating Work Instructions as per Code of Safe Practice Vol. 1, Part IV, Section 11 (Material Handling Operation) Proper procedure and posture while lifting the materials.

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Personnel embarking or disembarkin g to boat

Serious / Fatal injuries

Fall of personnel Strike against hard object of rig & boat

Elimination / Substitution-Minimize the use of boat for person transportation Weather limitations should be followed Control -Basic training -Proper Usage & maintenance of personal transfer basket -Enhance skill of operator Operating Work Instructions as per Code of Safe Practice Vol. 1, Part IV, Section 10 (Personnel and Material Transfer) Adherence to Marine procedure including weather conditions specially for personal transfer

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Use of toxic chemicals/p otentially hazardous materials

Emission /Release of Flammable or Toxic Substances . Fire and explosion. Occupationa l Health hazard

Multiple injuries or fatalities Structural damage due to H2S release

Elimination / SubstitutionUse of non toxic chemicals wherever possible Control Ensure that current MSDS is available at the rig site for all chemicals that are used All hazardous materials shall be segregated from normal stores and clearly identified. Hazardous materials labels shall not be removed from containers. Fire &Gas Detection System Preventive Maintenance Class Certification. Of Rig Safety Drills Location surveys. Monitoring during drilling. Proper equipment. Tubular inspections.

ERP scenario Sabotage / Criminal Act / Riot / War

Fire hazard Equipment / Property damage

Physical injury or fatalities Loss of property Disruption of operations

Elimination / SubstitutionNot Possible Control Mock Drills as per ERP Security & surveillance Communication Facility Offshore security coordination meeting

Page 13 of 21 Activity HAZARDS CONSEQUENCES PREVENTIONS

Use of all motors and electrical equipment

Electrical safety/fire hazard

Damaged cable/junction box short circuiting leading to fire Physical injury Electrical shock

Elimination / SubstitutionElectrical equipment are provided with automatic shutdown devices in case of short circuiting Control Program for inspection of electrical equipment and referring Code of Safe Practice Vol. 1, Part VI, Section 3 (Electrical Installation ( Offshore)) Electric safety audits Elimination / Substitution-Work shall be planned so as to prevent entry into a confined space Control Oxygen test, Purging of tanks with air. Instructions as given in Code of Safe Practice Vol. 1, Part V, Section 1 &2 Fire Fighting Equipment and Procedures & Wear a safety harness with an attached life-line

Confined space entry

Exposure to leading to loss of oxygen deficient material and pollution. atmosphere. Fatality Fire due to static charge. Asphyxiation Fire hazard

BOP nipple up and nipple down

-Physical injury -Cradle bolt may shear -Equipment / and BOP could fall Property -Winch wire may fail damage -Fire hazard

Elimination / SubstitutionNot Possible Control Normally only BOP winch is used -Crew briefing -Checking of cradle bolt, winch wire etc. -Safe work practices to avoid injury due to swinging or dropping of the blow out preventor assembly Welding is not permitted on BOPs

Page 14 of 21 Activity HAZARDS CONSEQUENCES PREVENTIONS

Logging operations

Radiation/ Exposure of substances. Health hazards

Physical injury Explosion effects on property Occupational disease

Elimination / Substitution-Avoid manual connections Control Safety briefing prior to logging operations -Only qualified & trained person are entitled to handle

RCP-Vol-I ERP Scenario Severe Weather (on location) Physical injury Equipment damage Environmental impact Possible loss of rig. Possible personnel injuries or fatalities. Good monitoring of weather patterns in area. Twice daily weather reports received. Ability to suspend operations and go to storm condition.

Severe Weather (in transit).

Physical injury Equipment damage Environmental impact

Possible loss of rig. Possible personnel injuries or fatalities.

Good monitoring of weather patterns in area. Policies and procedures. Predetermined sheltered water chosen before transit if possible. All watertight barriers sealed during transit. Power of towing vessels meets predetermined rating. Rig movers qualified by third party. Inspection of towing gear.

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Storage and handling of Radio active materials

Leakage from stored Radioactiv e materials.

Possible personnel injury. Possible environmental impact.

Procedures. Only on board when required. Stored in isolated area with proper containment and appropriate markings. Only handled by qualified personnel. Permit-To-Work required. Inventory of radioactive material available to OIM at all times. Third Party Rig-Up permits.

Storage and Handlin g of Explosiv e materials

Unintended detonation of stored of Explosive materials.

Possible personnel injury. Possible equipment damage.

Procedures (Radio silence when appropriate). Only on board when required. Stored in isolated area with proper containment and appropriate markings. Only handled by qualified personnel. Explosives and detonators stored separately. Inventory of explosive materials available to OIM at all times. Explosive material used or moved only under Permit-To-Work. Third Party Rig-Up permits. Explosives stored on jettisonable racks.

Towing

Towing failure.

Possible structural damage.

Policies, procedures, training. PMS. Accurate weather forecasting. Certification of towing gear. Multiple redundant tow boats (3).

Page 16 of 21 Activity HAZARDS CONSEQUENCES PREVENTIONS

Well Testing

Major Fire / Explosion during Well Testing.

Possible structural and equipment damage. Possible personnel injury or fatalities.

Permit-To-Work. Pre-tour meetings. Standby watch during Well Test operations. Equipment tested before putting into operation. Equipment inspected by OIM prior to operations. Third Party Rig-Up permits. Policies and procedures in place while working over water. Fall arrest system used when working over water.

ERP Scenario Man overboar d

.Fatality Severe injury

Possible personnel injury or fatality.

Anchoring

Cable Break.

Possible whip-back and possible personnel injury. Possible equipment damage. Possibility of dropping block. Possible personnel injuries or fatalities. Possible structural damage. Possibility of fire and explosion. Inability to hang off string. Suspension of operations.

PMS and inspections. Certifications. Experience and trained personnel. Communications.

Drilling (System)

Draw works Failure (break failure or drill line failure).

Preventative maintenance. (Slip and Cut, NDT, etc.) Spare parts on board.

Well control capabilities.

Page 17 of 21

Activity

HAZARDS

CONSEQUENCES

PREVENTIONS

Drilling(Sys tem)

Drill String failure or failure of lifting equipment (elevator, etc.)

Possibility of drill string or component falling to Drill Floor. Possible personnel injuries or fatalities. Possible loss of string down hole. Possible structural damage. Possible loss of well.

Preventative maintenance. Annual inspections. Training and procedures.

Drilling(Sys tem)

Top Drive failure. (Shaft or component failure)

Dropped string on Drill Floor. Possible dropped string down hole. Possible personnel injuries or fatalities. Possible structural damage. Possible reduction of well control capability. Possible loss of well.

Preventative maintenance. Annual inspections. Training and procedures.

Drilling(Sys tem)

Standpipe manifold failure, Choke & Kill manifold failure.

Possible personnel injuries or fatalities. Possible fire and explosion. Possible stuck drill string. Possible loss of well containment. Loss of down hole information.

Bi-weekly testing. Preventative maintenance. Training. Redundant lines, valves and chokes. Spares on board. Isolation valve on system. Cement manifold and cement unit. Preventative maintenance. Training.

Drilling(Sys tem)

PVT failure, Pressure sensor

failure, flow indicator failure.

Manual pit volumes. Redundant pressure sensors. Spare parts on board. Training.

Page 18 of 21 Activity HAZARDS CONSEQUENCES PREVENTIONS

Drilling(Sys tem)

Lack of mud weight.

Possible flowing well. Possible uncontrolled well flow. Possible loss of well.

Continuous monitoring of mud weight Reserve mud, Availability of sufficient weighing materials Training and procedures. Pre-spud meeting. Well program.

Drilling(Sys tem)

Diverter failure.

Drilling(Sys tem)

Control system failure.

Possible blowout on rig floor. Possible multiple injuries or fatalities. Possible loss of rig. Possible loss of well. Possible loss of BOP control. Reduced well control capability. Possible blowout with possible multiple fatalities and possible loss of rig. Possible loss of well.

Testing, inspections and maintenance. Training and drills. Correct engineering and design.

Testing, inspections and maintenance. Redundant control systems. Spare parts on board. Ability to function BOP manually at Koomey unit.

Drilling(Sys tem)

Line leak or rupture.

Fuel spillage. Possible fire hazard. Possible environmental

PMS. Testing. Procedures.

impact. Possible shutdown of engine(s). Possible suspension of operations.

Page 19 of 21

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