Assistant Driller

1. General Security

At the start of each shift, a safety meeting will be held and organized in turn by all the staff. This safety meeting will be written and recorded in the notebook provided for this purpose in order to have support for procedural changes.

1.1 Safety meeting

At the start of each shift, a safety meeting will be held and organized in turn by all the staff. This safety meeting will be written and recorded in the notebook provided for this purpose in order to have support for procedural changes.

1.2 Attitude of the Assistant to the Driller

• Be an example and remind your team that the SAR method is a guarantee for everyone's safety.

• Pass on his professional knowledge to his entire team.

• Familiarize yourself with the operational program to prepare and anticipate future operations.

• Take responsibility for the readings of the equipment lowered into the well.

Systematically record these readings in the sketchbook.

You must be present on the floor for maneuvers as soon as you arrive at the BHA. Ensure the smooth running of the stacking and unstacking of the BHA.

• Supervise and take part in maintaining the cleanliness and tidying of the site.

Ensure that the instructions given by the Head of Shift are carried out during the shift.

- Be able, with the authorization of the management of the device, to replace the Chief of Post on the brake during maneuvers of the drill string in the casing or during drilling outside the risk zone.

- Make his team respect the instructions and safety rules.

- Assist the Head of Post in the conduct of the work in drilling and/or work over.

1.3 Work Permit

The purposes of the work permit are:

- To prepare an operation with all the entities of the construction site

• Analyze the risks before starting an operation

• To ensure that the work to be carried out does not interfere with other operations / work

• To make the people involved aware of their roles and responsibilities in carrying out the said operation.

For all the following works (non-exhaustive list), an internal work permit will be issued:

• Installation of the SUB.

• Greasing of the crown-block (when the mast is raised).

• Weekly check of the mast.

• Mast lifting.

• Installation of the TDS.

• Implementation of BOPs.

• Spinning and cutting of the drill cable.

• Manufacture of drilling mud.

• Emptying of a barrel with a transfer pump.

• BOP test (on stump).

• Hot work (followed by a fire permit from the company when required).

• Fuel delivery.

• Installation of selective sorting skips (DIB, FER, fatty waste).

• Cleaning of a basin (with penetration).

• Withdrawal of the TDS.

• Sleeping of the mast.

• Removal of the BOP.

• Withdrawal of the SUB.

• Removal of dumpsters.

Work in the mast.

It is imperative to close each work permit at the end of the intervention

2. Work organization

At the beginning of each shift, the Driller and/or the assistant to the Driller must carry out a round and check in particular (daily check list):

• Accumulation unit pressures (KOOMEY unit)

• The ponds

• The positions of the choke manifold, kill line, choke line and stand pipe manifold valves

• Pulse damper pressure

• Watering pump pistons

• The play of the sheave sensor = 5/8''

The assistant driller will be obligatorily present on the floor for the maneuvers as soon as one arrives at the BHA. He will ensure the smooth running of the stacking and unstacking of the BHA.

REMINDERManeuvering times are an important point for most of our customers. However client has security standards which are as follows:

• Time is saved by preparing the equipment for future operations and not by taking risks with raising and lowering the trim too quickly.

• The BHAs will be prepared in advance so as not to waste time stacking.

The organization and distribution of tasks between the sounders guarantee an efficient and safe operation.

3. Maintenance

Regular maintenance of all our equipment is a guarantee for the smooth running of operations and therefore a good image of our company vis-à-vis our customers. It is everyone's responsibility to take care of the maintenance and the general and functional condition of our equipment.

3.1 Lubrication

A lubrication book is available in the office of the shift manager. This book indicates which parts must be lubricated and the lubrication frequencies. This notebook is also intended to note the date of the lubrication carried out on the equipment.

3.2 Regular precautions

• Check that the kelly valve key is present and clearly identified on the drilling floor.

• Report immediately to the Site Manager any anomaly(s) or non-operation from the crown-block to the basins via the attachment bridge and the shift manager's console.

• Check the condition of the floor material every day: shims, safety collars, screwing key, etc.

• Respect the current safety color code on all slings and shackles used.

• Ensure that once a week, when lubricating the crown block, the rigger carries out a meticulous inspection of the mast and all its component parts (cables, bolts, pins, safety devices and daisy chain). hooking). This operation will be carried out under cover of a work permit.

Ensure that the vibrators are cleaned as soon as the re-drilling or milling operations stop. Once clean, vibrators should be shut down until operations resume. At the DTM, the vibrator canvases will be dismantled and cleaned, a light veil of diesel fuel will be sprayed on them to prevent any corrosion.

• Ensure the daily cleaning of pump suction strainers during drilling or milling operations and weekly during workover operations.

• Check, before each operation, the general condition of the operating tools (example: combs of the drill key, combs of the wedges, etc.) as well as the compatibility between the threads of the internal plugs and the gasket used.

Inspect, at the end of each well having required re-drilling, milling or granite-calcium pumping operations, the opening of the BOP doors and the cleaning of the interior elements. Check the linings of the various shutters. This control will make it possible to ensure a permanent functional state of this safety equipment.

3.3 Borehole Pumps

During long-term pumping operations, borehole pumps should be 'listened' to and inspected regularly. Special attention must be paid to abnormal noises (knocks and whistles) and to ensure that the lubrication of the liners is carried out correctly.

Finally, the pre-charge pressure of the pulsation damper must be checked daily.

The minimum pressure read, pump stopped and purge open, must be 700 Psi. Otherwise, the Site Manager should be notified to rectify this degraded situation which could lead to deterioration of our pumps.

4. Report, readings and instructions

• The IADC drilling report is an important and official document. Only the IADC report will prevail in the event of a dispute. It must be clean, well written, without erasures or overloading and complete.This document must be completed systematically at the end of each shift.

• To do this, don't forget to fill in the mud and safety meeting sections as a comment.

• The written instructions of the Site Manager and client must be respected. They can always talk to each other. This is to avoid using shortcuts. In the slightest doubt, you must inform your superior.

• Never let a situation deteriorate.

• The DC, DP, HWDP trim book must be kept clean and up to date at the end of each shift.

• All tubular stock lowered into the shaft including that of the customer and service companies must be sketched with OD, ID, numbers, length and thread type. The Assistant driller is responsible for this operation.

• The Head of Shift must know and respect the instructions concerning the maximum and minimum pulls and poses in drilling and maneuvering. These instructions will be given by our customers and/or by the supervisor according to the standards of our company or the customer company.

5. Well Safety

5.1 Alert

All alerts given by the safety instruments (lamp, siren, etc.) must result in a stoppage of the operations in progress.

Types of sound alerts:

• Continuous siren = H gas alert2S or CH4

Siren lasting 5 seconds = Fire Alert

Do not take any alarm lightly and in any case notify the Site Manager.

The safety instructions relating to the two previous alerts are as follows

❖ For the H gas alert2S or CH4(continued), the safety instruction is as follows:

The Chief of Post, the assistant driller and a sounder secure the shaft and return to the assembly point.

• Free yourself from the bottom and position the attached tool 1 meter above the rotation table.

• Stop rotation.

• Place the drill string on wedges.

• Stop the drilling pumps.

• Close the annular BOP.

• Close automatic IBOP.

• Switch off all heat engines by activating the emergency stop at the dog house.

• Watch the direction of the wind using the windsock on the roof of the Site Manager's office.

• Go to the assembly point opposite the direction of the wind.

Proceed to the call of the personnel appearing on the attendance panel to ensure that all the personnel are present.

❖ For the fire alarm (1 blast of 5 seconds on the horn):

The Driller / the assistant driller / a sounder secure the well and return to the assembly point.

Drilling well safety procedure

• Free yourself from the bottom and position the tool joint 1 meter above the rotation table.

• Stop rotation.

• Stop the drilling pumps.

• Close the annular BOP.

• Place the drill string on wedges.

• Close automatic IBOP.

• Stop the main engines by activating the emergency stop at the dog house.

• Watch the direction of the wind using the windsock on the roof of the Site Manager's office.

• Go to the assembly point opposite the direction of the wind.

• Proceed to the call of the personnel appearing on the attendance panel to ensure that all the personnel are present.

Safety procedure for the well in operation

• Position the joint 1 meter above the table.

• Place the trim on wedges.

• Close the annular BOP.

• Fit the kelly valve.

• Close the Kelly valve.

• Stop the main engines by activating the emergency stop at the dog house.

• Watch the direction of the wind using the windsock on the roof of the Site Manager's office.

• Go to the assembly point opposite the direction of the wind.

Proceed to the call of the personnel appearing on the attendance panel to ensure that all the personnel are present.

The team members of 1timeintervention bring fire extinguishers to contain the fire. Teammates of 2thintervention equip themselves with specific PPE and use the fire engine motorbike to contain the fire.

5.2 Prevention of blowouts

The instructions in case of coming must be displayed in the dog house.

Exercises for maneuvering or drilling must be carried out in accordance with the instructions displayed in the dog house.

5.3 Equipment permanently required at the drilling floor

It must be ensured that the following safety devices are present and operational at the drilling floor.

• Gray valve (thread compatible with BHA or gasket)

• Kelly valve (thread compatible with BHA or gasket)

• Kelly valve keys

Dart sub (adapted to the landing sub lowered into the well).

6. General site maintenance

• Keep the work floor clean and tidy. Make sure and take the necessary steps to ensure that the access and passageways are never cluttered with equipment.

• Between each operation or different phases of the program, clean, remove and store in its original place the equipment that will no longer be used.

• Clean and visually check the threads and bearing surfaces of all unloaded reductions or tubulars. Grease the threads of this equipment and protect them with screwed protectors. Notify the Site Manager if protectors are missing.

• Keep the dog house clean.

• Keep the various notebooks up to date. Keep a notebook for each use and do not mix genres.

• Keep the shift manager's console and the pressure gauges clean and free of tools.

• Leave the workplace clean and tidy for the relief worker.

• Leave work tools clean and tidy. Do not forget to return the tools to the mechanics or electricians after borrowing.

• Throw used parts, rags, used gloves, empty bottles in the trash. Selective sorting of waste if the means are made available on the site.

• Keep clean and tidy the changing rooms, the mess and the various equipment (microwave oven, fridges, etc.).

Empty the trash cans once a day