Maintenance drilling equipment

Drawworks 525. Drilling and Production Hoisting Equipment 530. Inspection 540. Hoist Tool Inspection and Maintenance Procedures 542. Wire Rope 544. 

Sentinel holes are used as a simple form of thickness testing. A small hole of about I - 6 mm diameter is drilled from the outer wall of the piece of equipment to within a distance from the inner wall (in contact with the corrodent) equal to the corrosion allowance on the equipment (Fig. 9.11). The technique has been used even in cases where the corrodent spontaneously ignites on contact with the atmosphere. The philosophy is that it is better to have a little fire than a big one which would follow a major leak from corrosion through the wall. When the sentinel hole begins to weep fluid a tapered plug is hammered into the hole and remedial maintenance planned. Siting the sentinel holes is somewhat speculative although erosion at the outside of a pipe bend is often monitored in this way. 

Drill site construction and rigging-up This involves the use of heavy equipment, which should be well maintained to reduce the potential for fuel and lubricating oil leaks that may contaminate the site. Preventative maintenance during the construction phase can help prevent the generation of contaminated soil and water. For example, secondary containment beneath fuel storage drums can prevent releases to soil and water. 

At any one time worldwide, up to 1000 000 workers are employed in crude oil exploration, production, and refining. Workers employed in these fields can be exposed to crude oil. Activities associated with exposure include drilling, pumping, and transportation of crude oil as well as the cleaning and maintenance of the equipment used in these activities. 

The capital, operating and maintenance costs of primary fragmentation of the rock are low in relation to those of the subsequent operations to produce saleable limestone products. It is essential, therefore, to design the drilling and blasting operations to produce optimum fragmentation of the rock and a rock pile profile suitable for the loading equipment [4.11]. 

Facility and equipment maintenance should be provided so that hazardous breakdown is prevented. Plan and prepare for emergencies and conduct training and drills as needed so that the response of all parties to emergencies becomes second nature. Establish a medical program that includes first aid available on-site, with physician and emergency medical care nearby, to minimize harm if any injury or illness does occur. 

Equipment for Major Maintenance or Fabrication Optional additional purchases If more funds are available, one may procure drilling machine, lathes, grinders, shapers, band saws if more repair jobs are to be taken up in house. These can be used for minor fabrication work in-house and hence can be useful for future expansion work also. However, pressure vessels may not be fabricated in-house as this would require special expertise and statutory licence. 

Maintenance and testing of fire-fighting equipment, fire drills and evacuation procedures... 

There are a variety of power tools that are needed on an oil and gas drdlhng site. Rigging up and down would certainly require some power tools to be used. Plus, the day-to-day drilling operations require maintenance and upkeep of the rig and associated equipment. 

Oil and gas drilling rigs, and the ancillary equipment located on the site, are designed to perform at top-notch efficiency. When that machinery isn t running as it should, oil and gas production will suffer. In addition, there are numerous hazards that can result from improper installation, testing, inspection, and maintenance. 

Records should include reviews of the fire risk assessment [9(3)], fire safety policy, procedures or arrangements [11.(1)(c)], training records, drills, certificates for the Installation and maintenance of any fire safety systems or equipment. The inspector can demand to see the records. 

An emergency fire and evacuation procedure must be produced for every contract the procedure will be continuously reviewed and updated as required. Emergency evacuation drills must be devised and practised. Exit routes must be clear of obstructions. Hot work must be strictly controlled, and work areas inspected 30 minutes after completion of the work to check for possible fire hazards. All work areas and site buildings must be inspected on completion of works for potential fire hazards. Quantities of highly flammable liquids and LPG within work areas must be restricted and suitable storage facilities provided. Records must be maintained of routine fire inspections and the maintenance and testing of fire fighting equipment. 

Example (continued) The total analysis predicted the occurrence of on average 16 injuries per year at the new installation, Table 25.4. There was a 2 per cent reduction in relation to the historical data from the reference installations. Maintenance accounted for the largest reduction and this was explained by reduced maintenance due to improved planning and improved access to equipment during inspections and material handling. Increases were expected in drilling due to more extensive work and more handling of heavy materials. 

Work similar to that carried out on Ymer is found in land-based industry as well. The operation and maintenance crew (23 persons) has similar responsibilities to those of e.g. an oil refinery. Drilling involves the hancUing of heavy tools and equipment and is to some extent comparable to construction work. The catering crew s responsibilities are very similar to those of the employees of an ordinary hotel. 

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