This unit is appropriate for those working in operational roles in coal-seam methane gas drilling operations, at worksites within:
Coal mines
Drilling
Not applicable.
ELEMENT | PERFORMANCE CRITERIA |
1. Plan and prepare for operations | 1.1. Access, interpret and apply compliance documentation relevant to the work activity 1.2. Obtain, confirm and apply work instructions for the allocated task 1.3. Resolve coordination requirements with others at the site prior to commencing and during work activities |
2. Apply coal seam gas control strategies | 2.1. Apply approved methods to control identified hazards associated with coal seam gas control under varying working conditions 2.2. Recognise and respond to early warning signs of kicks and coal seam gas going under-balanced while drilling 2.3. Recognise kick indicators and apply kick detection methods and responses during coal seam gas control operations 2.4. Operate equipment to minimise swabbing and surging 2.5. Apply tripping methods in accordance with operating requirements 2.6. Apply relevant components of industry requirements and government regulations related to coal seam gas control and influx prevention during operations 2.7. Prepare records and reports according to requirements |
3. Coordinate coal seam gas control crew activities | 3.1. Inform assistants of their roles and responsibilities in a coal seam gas control situation and monitor their application 3.2. Communicate operational activities and information to other crew during coal seam gas control operations 3.3. Conduct coal seam gas control drills and exercises to ensure crew readiness for emergency situations |
4. Operate and monitor coal seam gas control equipment and processes | 4.1. Verify availability and set up of coal seam gas control equipment 4.2. Inspect coal seam gas control equipment for safety and fitness-for-purpose and rectify and/or report faults and malfunctions 4.3. Install, test and operate coal seam gas control equipment to manufacturer's and operational requirements 4.4. Monitor, read and interpret measuring and testing equipment and devices to ensure planned, safe, effective coal seam gas control 4.5. Assist in installation, maintenance and replacement of equipment |
5. Apply coal seam gas kill procedures | 5.1. Confirm coal seam gas control procedures and activities with crew members 5.2. Apply operational instructions 5.3. Apply coal seam gas control working practices 5.4. Apply coal seam gas kill methods according to requirements 5.5. Carry out emergency shutdown procedures 5.6. Communicate incident information to other crew members |
Required skills |
Specific skills are required to achieve the performance criteria in this unit, particularly for the application in the various circumstances in which this unit may be applied. This includes the ability to carry out the following, as required to apply effective coal seam gas control practices: apply legislative, organisation and site requirements and procedures work in a team take measurements make calculations and estimations relevant to activities interpret gauges apply kick warning signs and indicators detection procedures interpret work instructions and procedures supervise drill assistant conduct and evaluate drills and exercises use hand and power tools |
Required knowledge |
Specific knowledge is required to achieve the Performance Criteria of this unit, particularly its application in a variety of circumstances in which the unit may be used. This includes knowledge of the following, as required to apply effective coal seam gas control practices: the principles and practices of coal seam gas control coal seam gas control procedures and their application risks and their controls related to coal seam gas control kill principles and methods effects of hydrostatic pressure when drilling through gas bearing formations sources of ignition and their dangers and controls function, installation, operation, maintenance and use of coal seam gas control and auxiliary equipment causes, effects and response to equipment failures drilling parameters and their interpretation purpose, operation and interpretation of measuring and testing devices kick detection warnings and indications and the responses to them purpose, type and conduct of coal seam gas control emergency drills and exercises causes and effects of swabbing and surging pressure concepts and effects communication methods and protocols during coal seam gas control operations influx parameters tripping requirements and techniques emergency shutdown methods type, format and implementation of coal seam gas control documents |
The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package. | |
Overview of assessment | |
Critical aspects for assessment and evidence required to demonstrate competency in this unit | The evidence required to demonstrate competency in this unit must be relevant to worksite operations and satisfy all of the requirements of the performance criteria, required skills and knowledge and the range statement of this unit and include evidence of the following: knowledge of the requirements, procedures and instructions for the application of effective coal seam gas control practices implementation of requirements, procedures and techniques for the safe, effective and efficient application of effective coal seam gas control practices working with others to undertake and complete effective coal seam gas control practices that meet all of the required outcomes consistent timely application of effective coal seam gas control practices that safely, effectively and efficiently meets the required outcomes |
Context of and specific resources for assessment | This unit must be assessed in the context of the work environment. Where personal safety or environmental damage are limiting factors, assessment may occur in a simulated environment provided it is realistic and sufficiently rigorous to cover all aspects of workplace performance, including task skills, task management skills, contingency management skills and job role environment skills. The assessment environment should not disadvantage the participant. For example, language, literacy and numeracy demands of assessment should not be greater than those required on the job. Assessment of this competency requires typical resources normally used in the work environment. Selection and use of resources for particular worksites may differ due to site circumstances. Customisation of assessment and delivery environment to sensitively accommodate cultural diversity. Aboriginal people and other people from a non English speaking background may have second language issues. Where applicable, physical resources should include equipment modified for people with disabilities. Access must be provided to appropriate learning and/or assessment support when required. |
Method of assessment | This unit may be assessed in a holistic way with other units of competency. The assessment strategy for this unit must verify required knowledge and skill and practical application using more than one of the following assessment methods: written and/or oral assessment of the candidate's required knowledge observed, documented and/or first hand testimonial evidence of the candidate's: implementation of appropriate requirement, procedures and techniques for the safe, effective and efficient achievement of required outcomes consistently achieving the required outcomes first hand testimonial evidence of the candidate's: working with others to undertake and complete effective coal seam gas control practices |
Guidance information for assessment | Consult the SkillsDMC User Guide for further information on assessment including access and equity issues. |
The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included. | |
Relevant compliance documentation may include: | legislative, organisational and site requirements and procedures manufacturer's guidelines and specifications Australian standards code of practice Employment and workplace relations legislation Equal Employment Opportunity and Disability Discrimination legislation |
Work instructions may come from briefings, handovers, plans and work orders and may be written or verbal, formal or informal and may include: | nature and scope of tasks specifications quality of finished works achievement targets operational conditions obtaining of permits required site layout out of bounds areas worksite inspection requirements lighting conditions plant or equipment defects hazards and potential hazards coordination requirements or issues contamination control requirements environmental control requirements barricade and signage requirements |
Coordination requirements may include: | drill team other equipment operators maintenance personnel supervisors worksite personnel |
Hazards may include: | blow out gas to surface ignition of gas toxic gases pressurised coal seam gas system |
Working conditions may include: | night time operations day time operations hot climates cold climates snow wet weather conditions high wind |
Early warning signs may be: | rate of penetration trends trends shown in torque/drag |
Kick indicators may include: | flow from coal seam gas (pump off) increase in flow from coal seam gas (pumps on) pit volume gain |
Swabbing and surging may be affected by: | coal seam gas and pipe geometry coal seam gas depth fluid characteristics coal seam gas conditions and formation properties tool pulling and running speeds BHA configuration |
Records and reports may include: | specifications operator's instructions drilling program technical information daily pre-tour checklist daily pre-drilling checklist AP RP 53 tour sheet tour reports and drilling logs kill sheet incident report form drilling line record sheet shut-in procedures equipment damage report |
Communications may include: | 2-way radio hand signals telephone public address system written work instructions |
Drills and exercises may include: | pit drill trip drill abandonment drill evacuation |
Coal seam gas control equipment may include: | mud system diverters auxiliary equipment pressure measuring devices gas detection equipment and devices diverters |
Monitoring, reading and interpreting may apply to: | drilling fluid gain or loss drilling parameters pressure gauges mud balance values pump stroke counters gas readings amount of fluid added to coal seam gas kick warnings and indicators circulation rate |
Coal seam gas control procedures and activities may include: | time of coal seam gas shut-in initial shut-in pressures stage of kill type of kill procedure employed status of coal seam gas control equipment flow path for coal seam gas control method agreed procedures |
Operational instructions may include: | type of kill procedure to use type of shut-in procedure to use action to be taken in the event of approaching MAASP monitoring pit levels |
Working practices may include: | confirmation of shut-in monitoring of shut-in pressures monitoring of accumulator pressures correct SPM to be maintained during kill monitoring pump efficiency individual operation team operation use of personal protective equipment consideration of H2S and other toxic substances consideration of flammables and ignition sources maintaining continuous communication reacting to on-site emergencies |
Coal seam gas kill methods may include: | bringing pump up to kill speed maintaining constant bottom coal seam gas pressure shutting down the kill operation while maintaining a constant bottom coal seam gas pressure controlling the influx using the Driller's Method |
Drilling (Oil and Gas)
Refer to Unit Sector(s).
Not applicable.
This unit contains employability skills.
Refer to Unit Descriptor.