Company: Transocean
Skills: Driller
Education: High School/Secondary
Employment Type: Full Time Salaried Employee
Location: Angola

Offshore Drilling Group
Transocean is focused on being the employer of choice for the drilling industry.
We are challenging ourselves every day to push the performance of the company through technological advances and passion for our work.

Job Summary
- Assist the Driller in operating drilling and mud circulating equipment as instructed in the well program and in accordance to Company policies and procedures.
- Actively promote Transocean Shared Values

Job Description


  • Assist the Driller in operating drilling and mud circulating equipment as instructed in the well program and in accordance to Company policies and procedures.
  • Actively promote Transocean Shared Values.


Reports to: Driller


Derrickhand , Pumphand , and Floorhand


  • High School Diploma (U.S.)/ Proof of Completion of Formal Education or Relevant Craft Certificate (where applicable)
  • Successful Military Discharge - Preferred for U.S.
  • Graduate of Trade School or University where knowledge and training acquired are applicable to job requirements - Preferred 
  • Valid medical examination and vaccination certificates
  • Knowledge of all technical calculations required for the safe operation of the drilling unit
  • Basic computer skills
  • Valid well control certificate



  • Promotes a Safe and Respectful Work Environment: Proactively promotes and Maintains a healthy respect for open and transparent dialogue between all levels of personnel.
  • Demonstrates care for the safety and well-being of all personnel, at all times . Invests in each person to provide equal opportunity for development and advancement of those qualified, to fulfill their career objectives. Respects the dignity of all personnel and recognizes their merit.
  • Attend and participate in all required Safety and Operational meetings. 
  • Participate fully in the annual performance appraisal process, competency assessments based on performance against Operational Discipline requirements.
  • Complete company training requirements for the Assistant Driller job level as per the training matrix.
  • Full participation in emergency drills and respond to emergency situations as per assigned duties on the station bill.



Disciplined application and participation in the Task Planning & Risk Assessment Process. T his means, doing the right thing, the right way, every time following Transocean 5 Key Expectations of Task Planning and Risk Assessment.

This is inclusive of:

  • Understanding and perform the roles and responsibilities as assigned at the pre-job meeting.
  • Understanding the hazards associated with the task. 
  • Understanding and effectively implementing the control measures required to mitigate identified hazards.
  • Execute all tasks and task steps in a disciplined manner, following the sequence detailed in the relevant procedures.
  • Recognize at risk behavior or conditions during tasks and call 'Time out for Safety' when unsure, or when the job does not go as planned.
  • Participate in After Action Reviews to feedback lessons learned from performing the task.



  • Report all incidents, potential hazards or abnormal situations to supervisors.
  • Actively execute work in accordance with Company Safety Processes, e.g. START, Task Planning Risk Assessment and use of the Prompt Card, Safe Manual Handling, Working at Heights, etc.
  • Call a Time Out for Safety (TOFS) when you do not understand the plan, when an unsafe condition is observed, or perceived, anytime personal impairment is recognized, when it's not clear what will happen next, or the hazards and associated risks for the task changes. 
  • Participate in the execution of the rigs 'Hold the Zero' plan.
  • Comply with the company requirements to safeguard 'lone workers.'
  • Maintain a safe and tidy work area throughout all tasks and on completion of tasks.



The underlying expectation is that all duties are carried out in compliance with the Company Operational Discipline expectations and HSE requirements. When considering assignment of duties for the Assistant Driller, the Supervisor and the Assistant Driller will apply the rules of task planning (CAKES) to determine if the assigned role is appropriate. This means confirming that the individuals involved have the knowledge, skills, and experience to carry out the task, and the task plan complies with policy before they are authorized to proceed.


  • Perform the drilling department's daily checklists, i.e. QHSE checks, mast/Derrick inspection, choke and kill manifold set up, etc.
  • Maintain accurate records of tubular and tool dimensions (i.e. internal and external diameter, fish neck, and serial numbers).
  • Calculate ton-miles on drilling line; maintain an accurate logbook and advise the Driller on the need to slip and cut.
  • Maintain an organized drilling equipment store and tubular and subs inventory.
    Maintain proper communication with the Driller, Toolpusher, and other department heads.
  • Read and interpret various gauges and meters relating to the drilling operations; assist the Driller in maintaining records and logs.
  • Actively participate in pre-tour meeting with the drilling crew for all drilling operations.
  • Assist and relieve the Driller at the Driller's console during drilling operations.
  • Assist with the preparation of equipment for impending drilling operations.
  • Organize and supervise the drilling crews for all operations.
  • Assist the Driller during an emergency or well control situation; assist in the well killing operations.
  • Assist in supervision of Preventive Maintenance carried out on drilling equipment.
  • Assist in supervision of repairs on drilling and associated equipment.
  • Assist in running and cementing casing strings, running and retrieving BOPs and risers, and other operations as directed by the Driller or Toolpusher.
  • Monitor mud systems and supervise solids control equipment and mud mixing operation.
  • Assist in the planning, organization and execution of rig move operations. 
  • Operate drilling and associated equipment as directed by the Driller, i.e. Top Drive System, mud pumps, BOP and Diverter controls, etc.
  • Know the clients' rules and Company procedures for well control and blowout prevention.
  • Incorporate the THINK process into all tasks, whether working alone or as part of a team.
  • Participate daily in START process.
  • Ensure subordinate personnel are properly trained in the START process.
    Call a Time Out for Safety (TOFS) whenever an unplanned hazard or a change in the expected results is observed.
  • Ensure all relevant safety procedures and practices are adhered to during drilling operations, in accordance to the Company HS manual.
  • Report any incidents, potential hazards or abnormal situations to the Driller or Toolpusher.
  • Actively participate in weekly safety meetings and pre-tour meetings as required, FOCUS Improvement Process, and all other Company safety management systems.
  • Assist in conducting drilling operations safety drills as and when required.
  • Demonstrate commitment to the Company's safety policies through leadership and guidance. 
  • Ensure that a high standard of hygiene and housekeeping is maintained onboard the rig.
  • Meet the training requirements according to the applicable training matrix.
  • Participate in the annual performance appraisal process.
  • Mentor, coach, develop and train crew members to ensure that they are competent to work at their next job level.
  • Provide leadership and motivation to rig personnel; Apply continuous improvement process.
  • Assist in training to ensure that all personnel are competent to perform their allocated jobs.
  • Promote and maintain a good working relationship with other departments, third-party personnel and Customer Representatives.
  • Promote and maintain a good working relationship with other departments, third-party personnel and Customer Representatives.

If you want to push yourself to great achievement, let Transocean develop your career.

No matter where in the world Transocean people are working, we are all pioneers at heart. We don’t shrink from challenges. They inspire us. Which is why we’ve been a company of firsts since our inception. Although we come from different countries, cultures and backgrounds, we’re united by our shared pursuit of excellence. We value the different perspectives represented throughout our organization, recognizing that our people are our most valuable asset. 


In today’s competitive environment, when Transocean has asked our employees to embrace a performance culture that requires us to constantly seek improvement no matter how productive we are, our team has risen to the occasion. And in fact, they are changing the way we operate. If you are motivated by a work environment that consistently challenges you, one where you can have an impact that is felt on every rig and on the bottom lines of both Transocean and our customers, we encourage you to browse our available positions below and at


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