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1. This category involves observing the equipment during operation for indications of inadequate performance When in use equipment shall be visually inspected on a daily basis for cracks loose fits or connections elongation of parts and other signs of wear corrosion or overloading Any equipment found to show cracks excessive wear etc shall be removed from service for further examination The equipment shall be visually inspected by a person knowledgeable in that equipment and its function Category Il This is Category inspection plus further inspection for corrosion deformation loose or missing components deterioration proper lubrication visible external cracks and adjustment Category Ill This is Category II inspection plus further inspection which should include NOT of critical areas and may involve some disassembly to access specific components and to identify wear that exceeds the manufacturer s allowable tolerances Category IV This is Category III inspection plus further inspection for which the equipment is disassembled to the extent necessary to conduct NDT of all primary load carrying components as defined by manufacturer Equipment shall be Q disassembled in a suitably equipped facility to the extent necessary to permit full inspection of all primary load carrying components and other components that are critical to the equipment a inspected for excessive wear cracks flaws and deformations Corrections sha2. ARCO Document number 203200 345 MAN 001 Revision G Page 31 of 94 3 Lubrication and maintenance Weekly maintenance Weekly maintenance Perform the cylinder adjustment test Monthly maintenance Procedure Preservation Use prescribed grease only Fill space between springs and pins with grease Six monthly inspection cat III Procedure Six montly inspection Check orientation of elevator doors and latch no visible drop allowed Check easy and full closing of latch onto its lug contact surface without touching bottom or top of lug Six monthly inspection cat III on RIG Procedure Procedure on rig MPT exposed critical areas according drawings CA e51 252 255 and 254 Check if indications are out of acceptance standard If indications out of acceptance standard remove elevator of service The elevator needs repair at the nearest authorized repair facility Please contact Varco BJ for guidance Annual 1 year inspection cat IV Procedure Annual 1 year Inspection cat IV Follow procedures according chapter Repair Magnetic Particle Inspection please comact a Varco BJ repalr center for guidance Check for correct condition of cylinder seals Attachment to PIB No 129 Page 1 of 4 www nov com NATIONAL OILWELL VARCO Document number 2OS200 345 MAN 001 Revision E F age a2 of 94 3 Lubrication and maintenance Maintenance procedures API recommended practice according t
3. he latch indication is on and off every time the elevator is latched and unlatched The frequency of checking for proper functioning of the latch should be at least daily and at the beginning of every trip Procedure www nov com f eos a I 12 Check that the elevator pipe lifting tool links and link adapter are all properly loaded and aligned to prevent unequal loading of any of these parts Especially in case of increasing loads this may become critical when the load is ditributed in an uneven way the stress pattern in the elevator may change This might affect the load rating of the elevator Ensure the latch feedback indication is on and off everytime the driller latches or unlatches the elevator This test should be carried out at least daily and at the beginning of every trip Never attemp to hoist a pipe without having received a positive signal elevator closed Never give the command open elevator while there is still load suspended in the elevator Never give the command open slips while there is still load suspended in the slips Use preferably a system interlocking the BX elevator with the Slips in the rotary in order to prevent the slips to open when the elevator is open and vice versa Releasing a load from the elevator into the Slips a Ensure the slips in the rotary are set Verify the presence op Slips Set signal b Lower the elevator Observe hook load decrease an ensure load is tran
4. ied personnel S22 Procedures In addition to the procedures deyeloped in accordance with 4 1 the manufacturer should define any special tools materials measuring and inspection equipment and personnel qualifications necessary to perform the maintenance The manufacturer should alsa specify those procedures that should be performed solely by the manufacturer either within the manufacturer s facility or Within another approved facility 5 2 Inspection 5 2 1 General The existence of cracks can indicate severe deterioration and impending failure Their detection identification and evaluation require accurate inspection methods Prampt attention is then required either to remove the equipment from service immediately or to provide appropriate service andor repair Cation shall be exercised to take into account the increased susceptibility to brittle fracture of many steels when operating at low temperatures If any manufacturing defects are discovered they should be reported ta the manufacturer or supplier Attachment to PIB No 129 Page 2 of 4 www nov com amp NATIONAL OILWELL VARCO Document number 203200 345 MAN 001 3 Lubrication and maintenance www nov com Revision G Page 33 of 94 5 3 2 Inspection categories 5 3 2 1 General The objective of these inspections is to detect service defects and possible hidden manufacturing defects Inspection results shall be reported on equipment files and drawings Category I
5. ll be made in accordance with the manufacturer s recommendations Prior to Category Ill and Category IV inspections all foreign material such as dirt paint grease oil scale etc shall be removed from the concerned parts by a suitable method e g paint stripping steam cleaning grit blasting 5 3 3 Frequency 5 3 3 1 Periodic inspection The user owner of the equipment should develop schedules of inspection based on experience the manufacturer s recommendations and one or more of the following factors environment load cycles regulatory requirements operating time testing repairs remanufacture As an alternative the user owner may use Table 1 guidelines Long term planning shall be adjusted in order not to interfere unnecessarily with the running operations 5 3 3 2 Non periodic inspection A complete on job shut down inspection equivalent to the periodical Category Ill or Category IV for the concerned equipment should be made before if anticipated and after critical jobs e g running heavy casing strings jarring pulling on stuck pipes and or operating at extreme low temperatures Attachment to PIB No 129 Page 3 of 4 a a NATIONAL OILWELL VARCO 5 Operation Document number 203200 345 MAN 001 Revision G Page 63 of 94 Operations ag WARNING Never exceed the load rating of the elevator bushings and pipe at any given time in any situation I WARNING The Driller should be checking t
6. o API RP 8B MOTE MOY recommends maintenance ace to API APSE Recommended inspections The userfowner of the equipment should dewelop schedules of inspection based an experiance the manufacturer s recommendations and one or more of the following factors erviranment load cycles regulatory requirements operating time testing repairs remanutacture Alternatively HOY recommends using the Periodic inspection and maintenance Categories and Frequencies as mentionedin API AP amp B Table 1 Long term planning shall be adjusted in order notte interfere unnecessarily with the running operations 5 inspection and maintenance 5 1 General 5 1 1 Criteria Inspection and maintenance are closely linked Inspection and maintenance actions may be initiated based on but not limited to one or more of the following criteria specific time intervals measurable wear limits load cycle accumulation non perfarmance of equipment environment experience history regulatory requirements 5 1 2 Safety considerations Operators shall review safety considerations applicable ta the site where the maintenance activity is performed 5 2 Maintenance 5 2 1 General Maintenance of equipment consists of actions such as adjustments cleaning lubrication and replacement of expendable parts The complexity of these activities and ihe safety risks involyed shall be considered inthe assignment of appropriate resources such as facilities equipment and qualif
7. rly to fully latch Also ensure the latch signal is functioning properly to turn on the elevator latched indicator at the Drillers console when the elevator is latched and to switch off the indicator when the elevator is open NOV recommends the Driller checks this elevator latched indicator every time the elevator is closed and opened Any elevator found to not be functioning properly or found to show cracks excessive wear etc shall be removed from service for further examination PIB No 129 Page 1 of 2 www nov com S NATIONAL OILWELL VARCO NOV recommends that you ensure the various daily weekly monthly six month and annual inspections are carried out as detailed in the user manual A part of the maintenance and operations section is attached to this bulletin for reference The complete manual and product information is available through the below listed Internet page Operators should also refer to previous NOV Product Information Bulletins and Safety Alerts at http Awww nov com drilling for additional information regarding safe operation maintenance and inspection criteria Please contact your local National Oilwell Varco NOV Service Center if you have any questions regarding this Product Information Bulletin Failure to follow the recommendations and or guidance in NOV Product Bulletins may result in death bodily injury or property damage PIB No 129 Page 2 of 2 www nov com amp NATIONAL OILWELL V
8. sferred to slips completely c Slightly lower hook 2 inch max in order to release latch lock pin from elevator d Command elevator to open Picking up a load with the elevator a Ensure elevator is commanded armed to close b Engage pipe with elevator c Elevator closes automatically d Observe indication elevator closed e Pick up weight of pipe Observe hook load to ensure this happens Now open slips and handle the pipe The sum of the static and dynamic load in the elevator shall never exceed the lowest value of o the load rating of the elevator verify load rating plate of elevator o the load rating of the bushing verify load rating stamped in bushing Verify pipe load shoulder area for maximum contact stresses verify according to examples in chapter SPECIFICATION Load ratings Ensure the heave compensating system if applicable is in good working order Attachment to PIB No 129 Page 4 of 4 NATIONAL OILWELL VARCO
9. wi 5 Ey J J T g h ra z day y b fi j a F k i j D H y r Fy d ay he tink NATIONAL OILWELL VARCO SAFETY ALERT Product Information Bulletin No 129 Release Handling Tools Date July 24 2009 Subject Dropped pipe incident using BX5 with square shoulder Riser Bushing Product All BX5 Hydraulic Elevators part no 50004000Y30 amp Y10 Objective To inform the industry of a dropped pipe incident Issue This is a notice only NOV recently received a dropped pipe incident report This incident occurred while the operator was using a BX5 elevator when handling square shoulder riser NOV is collecting all data and information that possibly relates to the incident At this time it is not clear if the root cause is related to the BX5 or the operating process NOV has sold over 130 BX5 elevators since March 2004 The majority of these units have been in use for several years and NOV has not received any reported failures on any of these units Depending on our findings we will inform the industry and provide information on what corrective action if any is necessary NOV further recommends that when in use the elevator be visually inspected on a daily basis for cracks loose fits or connections elongation of parts and other signs of wear corrosion or overloading In addition to this NOV recommends that the elevator be inspected on a daily basis and before every trip to ensure the latch is functioning prope
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