pyramid inspection procedure - rev 0 - 010305

MH-Pyramid, Inc.28377 FM 529Katy, TX 77493

Tel 281-371-2424Fax [email protected]

A member of Kvaerner Group

Field Inspection and Repair Procedure forDrilling and Well Servicing Structures

Revision HistoryRev. No. Issue Date Description Drafted By: Approved By:

0 1/3/05 First Document Issue MLM PLA





Table of Contents

1.0 Purpose 1

2.0 Scope 1

3.0 References 1

4.0 General Principles 1

5.0 Inspection 4

6.0 Repair 10

7.0 Modifications/Upgrades 11

8.0 Materials 11

Appendix A Mast Visual Inspection Form 13

Appendix B Derrick Visual Inspection Form 26

Appendix C Substructure Visual Inspection Form 35





1.0 Purpose

The purpose of this document is to establish a standard procedure for the inspection and repair of drillingand well servicing structures. It is intended for use during all inspections, whether conducted by MH-Pyramid, Inc. (MHPI) personnel, owner/operator personnel or third party inspectors.

2.0 Scope

This document is applicable to all MHPI masts, derricks, substructures and accessories.

3.0 References

The basis for this procedure, as well as the inspection categories and personnel qualifications, areprovided by API RP 4G – Recommended Practice for Use and Procedures for Inspection, Maintenanceand Repair of Drilling and Well Servicing Structures.

In addition, the following standards are listed as references by which to supplement this document:

• API Spec 4F – Specification for Drilling and Well Servicing Structures.

• API Spec 9A – Specification for Wire Rope.

• AWS D1.1 – Structural Welding Code – Steel.

• AISC S303 – Code of Standard Practice for Steel Buildings and Bridges.

• Wire Rope Technical Board – Wire Rope Users Manual.

4.0 General Principles

4.1 INSPECTION CATEGORIES

4.1.1 Category I

A visual observation of the mast/derrick and substructure by rig personnel during operations for indicationof defects or inadequate performance.

Category I inspections should be performed daily.

4.1.2 Category II

A Category I inspection, plus a more thorough inspection of, but not limited to, load bearing areas andsheaves for cracks, damage corrosion, loose or missing components and premature wear.




Category II inspections should be performed during rig-up operations.

4.1.3 Category III

A thorough visual inspection of all load bearing components and members should be conducted todetermine the condition of the mast/derrick and substructure and documented on the appropriateinspection form. The completed and signed inspection form, as well as any repairs completed, are to bedocumented in the permanent rig file. Inspections of well servicing, truck or trailer mounted masts shouldinclude observation of rig-up /rig-down operations.

Category III inspections should be performed every 730 operating days (every 2 calendar years for wellservicing rigs). This inspection interval is the maximum recommended. More frequent inspections shouldoccur for rigs operating in harsh environments, extreme conditions or subject to twelve or more rig movesin a 2 year period.

4.1.4 Category IV

A Category III inspection, plus the equipment should be disassembled and cleaned to the extentnecessary to conduct non-destructive testing (NDT) of all defined critical areas. An ultrasonic thicknesstest is recommended on all tubular or closed section members to test for internal corrosion. Internalcameras, usually run on cable, may also be used to visually inspect for internal corrosion.

All welds to be 100% visually examined. All welds in critical areas should be inspected using a magneticparticle (MPI) or liquid penetrant (PT) method in accordance with Section 6 of AWS D1.1. Ultrasonictesting (UT) should be used for all through thickness welds. Welds on galvanized structures may requiredifferent inspection techniques and intervals. Cracks are generally identified through visual inspection ona galvanized mast/derrick.

Masts, derricks and substructures on mobile offshore drilling units or fixed offshore platforms are exemptfrom the requirements of a Category IV inspection only if the structure is in compliance with theregulations of an internationally recognized class society or flag state.

Category IV inspections should be performed every 3650 operating days (every 10 calendar years forwell servicing rigs). This inspection interval is the maximum recommended. More frequent inspectionsshould occur for rigs operating in harsh environments, extreme conditions or average twelve or more rigmoves in a 2 year period.

4.2 STRUCTURAL DAMAGE CLASSIFICATIONS

4.2.1 Major Damage

Significant geometrical distortion or structural damage to primary load carrying components including theraising assembly, main legs, hinge points and crown.

4.2.2 Secondary Damage

Damage or distortion to non-primary load carrying components.

4.2.3 Minor Damage

Damage or distortion to ancillary equipment (e.g., ladders, monkey board, walk arounds, tong hangers,etc.).

4.3 PERSONNEL QUALIFICATIONS




4.3.1 General

Inspection, maintenance and repairs should be carried out by a person designated by MHPI who, bypossession of a recognized degree, certificate or professional standing or who by knowledge, training orexperience, has successfully demonstrated the ability to solve or resolve problems relating to the subjectmatter or scope of work. Furthermore, inspectors should be familiar with the type of equipment to beevaluated.

4.3.2 Welder Qualification

Welders on mast and derrick repairs shall be qualified in accordance with an internationally recognizedstandard (preferably AWS D1.1 or equivalent) and should have experience in mast/derrick andsubstructure repair. The following guidelines will assist in determining that a welder’s qualification isacceptable:

• Verify that the welder has successfully completed a performance test.

• Verify that the contractor or welder has documented welding procedures (WPS).

• If the WPS are not AWS prequalified, verify that each procedure is supported by a ProcedureQualification Record (PQR).

4.3.3 NDT Technician Certification

NDT technicians shall be certified in accordance with an internationally recognized standard (preferablyASNT Level II Technician or equivalent). The following guidelines will assist in determining that an NDTtechnician’s certification is acceptable:

• Verify that the NDT technician has documentation that supports certification in accordance with aninternationally recognized standard .

• Request evidence of NDT equipment calibration and verify serial numbers certificates match those ofthe equipment being utilized.

• Request documented procedures from the NDT technician in order to verify that NDT contractor isadhering to their own requirements.

4.3.4 Category I and II Inspections

Category I and II inspections should be conducted by individuals who possess adequate experience andknowledge of masts/derricks and substructures (e.g., experienced field superintendents, engineers, rigsupervisory personnel).

4.3.5 Category III Inspections

Category III inspections should be conducted by individuals who possess adequate experience andknowledge in the inspection criteria specified in Section 4.1.3 and as set forth in Section 4.3.1.

Category III inspections should be supervised by individuals who also possess adequate experience andknowledge. Typical persons qualified to supervise the inspection could be an engineer, NDT technician,ASNT Level II Technician or senior level operations person designated by MHPI (e.g., RigSuperintendent, Rig Manager, Operations Manager).

4.3.6 Category IV Inspections




Category IV inspections should be conducted by or closely supervised by an MHPI representative. Inaddition, Category IV inspectors should satisfy the requirements of Category III inspectors.

Personnel performing the Category IV visual inspection of welds should be certified or qualified asfollows:

• AWS certified welding inspector or equivalent.

OR

• An engineer or NDT technician, who by training, experience or both, in metals fabrication, inspectionand testing, is qualified to perform inspection of the welds. NDT technicians for a Category IVinspection shall, at a minimum, be certified as an ASNT Level II Technician or equivalent.

5.0 Inspection

5.1 GENERAL

The objective of the inspection is to identify defects in the structure so that they may be repaired inaccordance with this procedure. Any area on a structure that is deemed defective through inspectionshall be marked with brightly colored spray paint or similarly indicated with available resources.

The inspection results shall be documented on the appropriate inspection form located in the appendicesof this document. Inspection reports shall be filed with the MHPI Service Manager in accordance withapplicable quality system requirements.

5.2 ROUTINE CHECKS

The following routine checks, as applicable, should be performed at appropriate intervals:

• Inspect all welds, especially those in erecting mechanism, for cracks.

• Inspect erecting mechanism for any other signs of deformity.

• Ensure there is an adequate supply of hydraulic fluid in the hydraulic system. Precautions should betaken to remove all air from the hydraulic system.

• Inspect all wire rope, including raising lines, for damage (see Section 5.5).

• Inspect load transfer mechanisms, guides and scoping ram stabilizers in telescoping masts for freeoperation, good condition, cleanliness and proper lubrication before raising and lowering operations.Ensure scoping ram stabilizers move into proper position and fully engage after top section is scopedinto operating position.

• Ensure unit is level and foundation and supports are correctly placed before erecting operation.

• Check for wear and proper lubrication of crown sheaves.

• Ensure all erection mechanism sheave bearings, sprockets, pins, etc. are in good working conditionand properly lubricated.

• Check folding ladders for proper position prior to access by personnel and free operation beforelowering operation.

• Inspect all bolted connections to ensure they are tight.

• Load transfer mechanisms should be checked frequently for proper locking position, preferably oneach tour during operations.




5.3 VISUAL WELD INPSECTION

• The equipment to be inspected should be arranged in a manner that allows the field servicetechnician to access it safely.

• All welds should be visually inspected. A proper visual inspection requires that all coatings areremoved and that the weld surface is free of foreign matter. Care should be taken when any cleaningmethod such as shotblasting is used. Fine cracks and similar imperfections may be sealed on thesurface and rendered invisible to visual inspection.

• Welds located in critical load bearing areas should be non-destructively tested using the magneticparticle method.

• Welds on a galvanized structure are generally inspected visually with the coating left on. Cracks willoften propagate through the zinc and appear on the surface. However, care should be taken todocument the fact that the inspection was done with the coating left in place. Any areas of thegalvanized structure that appear to be covering weld or base metal defects should have the zinccoating removed for further evaluation.

5.4 STRUCTURAL MEMBER INSPECTION

5.4.1 General

All structural member inspection findings should be classified in accordance with Section 4.2 of thisdocument.

5.4.2 Acceptance Criteria

All structural components that fail to meet the acceptance criteria outlined in Table 5.1 should be repairedor replaced.




Table 5.1 *See Figure 5.1

Component or Condition Acceptance Criteria

Assembled structures Top surface of assembled substructures that supportmachinery should be flat within ±1/16".

Diagonal check dimensions should be within 1/4"

Shoe settings should be within ±1/16” (all dimensions).

Legs 1/4" maximum camber or sweep* along total stem length.

3/32” maximum camber or sweep* within any one panel.

Spreaders/girts/braces Wide flange shapes

Maximum camber or sweep*for lengths ≤30’:

10

,"8/1 ftlengthx

3/8” maximum camber orsweep* for lengths >30’.

All other structural shapes

Maximum camber or sweep*for lengths ≤15’:

5

,"8/1 ftlengthx

3/8” maximum camber orsweep* for lengths >15’.

Pins Diameter not more than 1/16” under specified diameter.

Pin holes Diameter not more than 1/16” over specified diameter.

Corrosion Maximum 10% reduction in cross sectional area.

Sharp kink or local bends Replace component.

Missing members Replace component.

Missing bolts, pins or safety keys Replace component.

Sheaves, rollers, etc. Groove radii to be in compliance with API Spec 8C Table 5

Groove depth not to exceed 1.75 x wireline diameter.

Repair/replace components that do not turn freely or havecracks detected.

Shafts 7.999” (+0.000”, -0.001”)

9.998” (+0.000”, -0.001”)

11.999” (+0.000”, -0.001”)

Wireline cuts on members Replace component.

Heat exposure Components exposed to extreme temperatures should beinspected for distortion and repaired or replaced, if necessary.

Note: This acceptance criteria does not apply to localizedheat applied for straightening members, if in accordance withSection 6.6 of this document.




Reference: AISC – Manual of Steel Construction

5.5 WIRE ROPE INSPECTION

5.5.1 General

Wire rope should be inspected and maintained regularly by the owner/operator of the equipment. It is acomponent of critical importance and should be included in a standard rig inspection. Determination as towhether a wire rope is in need of replacement will largely be determined by the equipmentowner/operator, and not the field service technician. The following sections briefly covers some of themore critical factors involved in wire line inspection and rejection criteria.

5.5.2 Definitions Related to Wire Rope

• Bird Cage – A description of the appearance of a wire rope forced into compression. The outerstrands form a cage and at times displace the core.

• Lay – The manner in which the wires in a strand in a rope are helically laid or the distance measuredparallel to the axis of the rope (or strand) in which a strand (or wire) makes a complete helicalconvolution about the core.

• Strand – A plurality of round or shaped wires helically laid about an axis.

5.5.3 Abrasion

Wire rope should be replaced if the outer wire wear exceeds 1/3 of the original wire diameter.

5.5.4 Wire Rope Stretch

CAMBER CAMBER/SWEEPSWEEP

FIGURE 5.1CAMBER AND SWEEP FOR STRUCTURAL SHAPES




Wire rope stretches at varying rates over the course of its service life. Determination as to whether a ropehas stretched to the point where it is in need of replacement will largely be determined by the equipmentowner/operator, and not the field service technician. For informational purposes, however, if the wirerope has been in service, is not new and is stretching at a more than normal rate, the field servicetechnician should advise the equipment owner/operator to replace it.

5.5.5 Corrosion

Corrosion often occurs internally before there is any visible external evidence. Severe discoloration dueto rusting is a sign that the rope needs to be replaced. Slight discoloration due to rusting usually indicatesa need for lubrication.

5.5.6 Kinking, Crushing and Bird Caging

Wire rope that exhibits damage due to kinking, crushing, bird caging or any other type of distortion shouldbe replaced immediately.

5.5.7 End Fittings

Cracked, bent or broken end fittings on a wire rope should be replaced immediately.

5.5.8 Heat Damage

Discoloration from excessive heat is evidence that the rope has suffered irreparable damage and shouldbe replaced immediately.

5.5.9 Broken Wires

Different standards such as ANSI and ASME often contain varying criteria for replacement of wire ropebased on the rope application. As an MHPI standard, any wire rope with more than six (6) broken wiresin one rope lay or three (3) broken wires in one strand should be immediately removed from service andreplaced.

5.6 GALVANIZING AND PAINT SYSTEM INSPECTION

5.6.1 Galvanizing

The following conditions resulting from hot dip galvanizing should be repaired, if deemed necessary:

• Bare spots.

• Flux inclusions.

• Ash inclusions.

It is not necessary to repair the following conditions exhibited in components that are galvanized, exceptas noted:

• General roughness.

• Dross pimples (unless dross contamination is heavy).

• Blisters (if due to steel composition).

• Lumpiness and runs.

• Dull gray coating (if due to steel composition or condition or limited to occasional areas).




• Rust stains.

• Wet storage stains.

5.7.1 Paint Systems

The following conditions should be repaired if observed in the paint system:

• Cracking.

• Flaking.

• Bubbling.

• Peeling.

• Rust spots.

5.7 LUBRICATION

5.7.1 Weekly Lubrication

It is recommended that the following components are lubricated on a weekly basis. Alemite fittings for allcomponents are located at the ends of the shafts for lubrication through the shafts. The crown blockcluster shaft has alemite fittings at both ends of the shaft. Use a high quality alemite gun lubricant.

• Crown block sheave bearings.

• Coreline sheave bearing.

• Catline sheave bronze bushing.

• Air tugger sheave bronze bushing.

• Mast boom kit sheaves bronze bushing.

• Guide dolly wheel bearings (traveling equipment guide).

5.7.2 Before Raising or Lowering Mast

Before each raising or lowering of the mast, the following components should be lubricated. Alemitefittings are generally located in the hub of the sheave and at the end of the roller. Use a high qualityalemite gun lubricant.

• Slingline sheave bronze bushing.

• Slingline equalizer sheave bronze bushing.

• Fastline breakover floating sheave shaft.

• Roller bushing on mast just above bottom section.

• Mast front shoe (hinge).

5.7.3 Before Each Casing Run

The casing stabbing platform unit should be serviced as follows before each casing run:

• Lubricate track wheels – four (4) alemite fittings total. Use a high quality alemite gun lubricant.




• Lubricate air motor for winch – it is recommended that an oiler be added into the air supply line to theair motor. If an oiler is not provided, then remove two (2) knurled aluminum screws located on top ofthe air motor and add a few drops of SAE 10 or light oil into the screw holes.

• Check level of oil bath for worm gear.

• Add oil to the outboard end of the winch drum shaft.

• If equipped with a sealed electric motor for winch, it does not need lubrication.

6.0 Repair

6.1 PRIMARY MEMBERS

All damage may be repaired in the field; however, MHPI Engineering or Field Services will recommendwhether repairs to primary members with major damage can be made in the field or should be repaired inan approved facility. MHPI will determine if a formal repair procedure should be developed for primarymembers based on the extent of the damage.

6.2 SECONDARY MEMBERS

When replacing secondary members, such as girts and braces, adequate support shall be provided sothat the original dimensional tolerances of the structure are maintained throughout the repair.Replacement member shall be welded with the same type/size of weld (e.g., fillet, partial penetration, fullpenetration) that was originally specified for that connection.

6.3 PADEYES AND LIFTING LUGS

Padeyes and lifting lugs require special attention due to the loads they are designed to handle. Whenreplacing these items, ensure that the grade of material of the replacement parts is equivalent to orsuperior to that which it is replacing. Any material substitutions should be approved by MHPIEngineering. It is also important that the field service technician oversee the stamping of the padeye orlifting lug Safe Working Load (SWL) on or near the lift point. The SWL shall only come from MHPIEngineering.

6.4 WELD REPAIR

Unacceptable welds or portions of welds shall be repaired as follows. Rewelding shall be done by meansof the same procedure specified on the original weld.

• Removal of unacceptable weld metal may be done through machining, grinding, chipping, thermalmeans, carbon arc gouging or any combination of these methods. Surfaces prepared for repair shallbe thoroughly cleaned before welding.

• Any weld found to be unacceptable by non-destructive methods shall be repaired and retested usingthe same method that initially discovered the defect.

• Overlap, excessive convexity or excessive reinforcement shall be repaired by removing the excessweld metal.

• Excessive concavity, undersize welds and undercutting shall be repaired by removing the excessweld metal.

• Excessive porosity, slag inclusions or areas of incomplete fusion shall be repaired by removing theunacceptable portions and rewelding.




• Cracks in the weld or base metal shall be explored to ascertain the extent of cracking. The crack andsound metal 2” beyond the extremeties shall be removed and rewelded.

6.5 CORROSION

Corrosion damage resulting in the reduction in area of a member more than 10% should be consideredfor repair. Corroded areas should be cleaned thoroughly to sound metal, repaired by one of the followingmethods and re-coated:

• Fill pits, pockets, and cavities with weld metal and grind flush.

• Fish plate the damaged region and seal weld.

• Remove the damaged area and re-plate.

• Replace the entire member.

6.6 HEAT STRAIGHTENING

Distorted members can often be repaired by applying a small amount of localized heat. Heatstraightening is acceptable so long as the amount of heat does not exceed 1100°F (600°C).Measurement of heat input should be done by calibrated instruments or by heat sensitive (TEMPIL) typesticks. If these items are unavailable it is generally accepted that 1100°F (600°C) is the temperature atwhich steel becomes a dull orange or reddish color (AWS D1.1, Section 5.26.2).

Note: Refer to Section 5.4.2 – Acceptance Criteria, Heat Exposure.

7.0 Modifications/Upgrades

Structural modifications or upgrades of the drilling structure are to be in accordance with the currentedition of API Spec 4F and require the approval of MHPI Engineering.

8.0 Materials

8.1 STEEL

Materials selected for rig modifications/upgrades shall be traceable and have a corresponding MaterialTest Report (MTR). The field service technician supervising the modification should review all MTR’s toensure that they are in accordance with identified material requirements.

8.2 WELDING ELECTRODES AND FILLER METALS

Filler metal selection shall be subject to MHPI engineering approval, but in most cases will fall under AWSD1.1, Table 3.1 – Pre-qualified Base Metal-Filler Metal Combinations for Matching Strength. Thefollowing excerpt from the table lists some of the more common combinations used on MHPI products:




Table 8.1

Base Metal Filler Metal

ASTM A 36 (<3/4in or 120mm) SMAW E60XX, E70XX, or E70XX-X

ASTM A-53 Grade B SMAW E60XX, E70XX, or E70XX-X

ASTM A106 Grade B SMAW E60XX, E70XX, or E70XX-X

ASTM A500 Grade A, B, or C SMAW E60XX, E70XX, or E70XX-X

ASTM A572 Grade 50 SMAW E60XX, E70XX, or E70XX-X

ASTM A588 (<4in or 100mm) SMAW E60XX, E70XX, or E70XX-X

When low hydrogen electrodes are used special care shall be taken to ensure that they are handled andstored in accordance with applicable industry standards. The following from AWS D1.1 providesguidelines for the storage and use of low hydrogen electrodes:

• Low hydrogen electrodes shall be purchased in hermetically sealed containers or shall be baked priorto use, according to manufacturer’s recommendations.

• Immediately after opening hermetically sealed containers, low hydrogen electrodes shall be stored inovens held at a temperature of at least 250°F (120°C).

• Electrodes shall be baked no more than once and electrodes that have been wet shall not be used.

• After sealed containers are opened or after they are removed from ovens, they shall not be exposedto the atmosphere for more than four (4) hours.

• Electrodes may be re-baked one (1) time in an oven with a temperature between 500°F (260°C) and800° (430°C) for a period of at least two (2) hours.

8.3 BOLTS/PINS

All replacement bolts/pins shall be approved by MHPI Engineering and shall meet the minimumrequirements of the original manufactured equipment. MTR’s for bolts/pins should be reviewed by thefield service technician to ensure they meet design requirements.




Appendix A – Mast Visual Inspection FormPURPOSE & SCOPE OF INSPECTION: This report form and inspection procedure was developed as aguide for making and reporting field inspection in a thorough and uniform manner. The procedure isintended for use by personnel designated by MHPI to the extent that its use satisfies conditions for whichan inspection is intended. More detailed and critical inspections may be scheduled periodically, orordered to supplement a program of these inspections; if derricks are used in the upper range of theirload limits, or if structures may have been subjected to critical conditions which could effect safeperformance. This form is provided strictly as a guide and MHPI accepts no liability whatsoever for itsuse or scope.

MARKING DAMAGE: At the time of inspection, damaged sections or equipment must be clearly andvisibly marked so that needed repairs may be made. A bright, contrasting spray paint is suggested forthis. When repairs are made, the visible markings should be removed by painting over them. It is alsonecessary for the inspector to write “None” when no damage markings are needed, as this is hisindication that the item has passed inspection. It is recommended that inspection be made withassistance of manufacturer’s assembly drawing and operating instructions. For items not accessible orthat do not apply, draw a line through the item pertaining to the component.

Company: Rig #:

Inspection Category: Date:

Location: Mast Manufacturer:

Date of Manufacture:

Manufacturer’s Drawing Available for Use in Inspection: Yes: No:

Manufacturer’s Rating: Height:

Mast Serial #:

Mast Type: Telescoping: Cantilevered:

Mast Position: Disassembled: Standing: Lying down:

Mast Nameplate on Structure: Yes: No:

Component Numbers Present: Yes: No:

Inspected By: Representing:




MAST

Items that do not need attention should be checked to indicate that the item was inspected. Items that are not applicableshould be marked in the box as “NA” (not applicable). Items that are warped, worn, damaged, cracked welds, rusted,bent, in need of repair or replacement, or otherwise in need of further attention, mark an “X” in the box and providecomments on the inspected items.

P If okay

NA If not applicable

X If attention is needed “Provide Comments Regarding Inspected Items.”

1.0 CROWN ASSEMBLY:Make/Model:

1.1 SheavesNumber of Sheaves: Main Cluster Sheave Diameter:

Fastline Sheave Diameter:

Deadline Sheave Diameter:

Comments Regarding Inspected Items:Sheaves:

Grooves in Gage:

Shaft ∅ (Cat. IV Only)

Spacers or Seals:

Grease Fittings:

Bearings:

Drilling Line Guards:

1.2 Crown PlatformDecking:

Holes Covered:

Safety Gate:

Ladder Access:

Handrails:

Frame Straight

Welds:

Bolts and Nuts:

1.3 Crown Support BeamsBeam Straight:

Pins & Bolts:

Safety Pins/Keepers:

Welds:




1.4 Additional Sheave Assemblies in CrownName:

Comments Regarding Inspected Items:Condition:

1.5 Pad-eyes Under the Crown Platform:SWL Marked:

Welds:

Pin Holes:

1.6 Fall Arrest/Climbing Assist Device Mounting:Support Pole:

Base:

Sheave Attachment:

Weight Bucket Attach:

Welds:

1.7 Crown Saver Block(s):Safety Mesh:

Safety Cable:

Block(s) Condition:

Attachment Strapping:

Strapping Welds:

Number of Visible Marks Applied:

2.0 MAST LEGS:

2.1 Front Leg, Drillers Side:Leg Straight:

Pin Connections:

Pin Hole(s):

Pins:


Welds:




2.2 Front Leg, OffDrillers Side: Comments Regarding Inspected Items:Leg Straight:

Pin Connections:

Pin Hole(s):

Pins:


Welds:

2.3 Rear Leg, Drillers Side:Leg Straight:

Pin Connections:

Pin Hole(s):

Pins:


Welds:

2.4 Rear Leg, Off Drillers Side:Leg Straight:

Pin Connections:

Pin Hole(s):

Pins:


Welds:


3.0 SPREADERS (BACK PANEL TRUSSES):Members Straight:

Bolts:

Pin/Bolt Hole(s):

Pins:


Welds:





4.0 GIRT(S) AND BRACING: Comments Regarding Inspected Items:Members Straight:

Welds:


5.0 MAST FEET OR PIVOTS:Condition:

Pin Hole(s):

Pins:

Safety Pins/Keeper:

Welds:


6.0 DEADLINE ANCHOR MOUNTING: (Reference API RP 8B)Supports:

Bolts:

Anchor Mount Welds:

Brass Inserts:


7.0 A-FRAME/GIN POLE:

7.1 Drillers Side Legs:Leg Straight:

Pin Hole(s):

Pins:


Welds:

7.2 Off Drillers Side Legs:Leg Straight:

Pin Hole(s):

Pins:


Welds:




7.3 Spreaders or Trusses: Comments Regarding Inspected Items:Members:

Welds:

7.4 Upper Connections:Members:

Welds:

7.5 Lower Connections:Pin Connections:

Pin Hole(s):

Pins:


Welds:


See Section 10.0 for Raising Sheave Checklist.

8.0 WORKING PLATFORMS:

8.1 Pipe Racking Platform:Frame Straight:

Pin Hole(s):

Pins:


Frame Welds:

Working Platform:

Landing Platform:

Handrails:

Ladder Access:

Fingers Straight:

Finger Welds:

Finger Safety Line(s):

Hoist Mounting:





8.2 Casing Stabbing Board: Comments Regarding Inspected Items:Frame Straight:

Welds:

Handrails:

Working Platform:

Hoisting Assembly:

Hoist Mounting:

Lower Travel Stops:

Pin or Bolt Holes:

Pins or Bolts:



8.3 Tubing Support/Belly Board:Frame Straight:

Welds:

Handrails:

Pin Holes:

Pins:


Support Cables:

Cable Connections:


9.0 LADDERS:Vertical Rails Straight:

Rails in Alignment:

Ladder Stand Offs:

Stand Off Connections:

Rail Welds:

Rungs:

Rung Welds:

Rung Spacing:

Access at Rig Floor:

Cage:

Toe Clearance:





10.0 RAISING AND TELESCOPING SYSTEM:

10.1 Raising Line System:(Refer to API Spec 9B,for Specifications) Comments Regarding Inspected Items:Wireline:

Wireline – Sockets:

Pins:


Sheaves Turn Freely:

Sheaves:

Grooves in Gage:

Spacers or Seals:

Grease Fittings:

Bearings:

Line Guards:

Welds:

Equalizer Assembly:


10.2 Hydraulic or Telescoping System:Hydraulic Cylinder(s) – Raising:Seals:

Main Ram:

Cylinder Hinge Points:

Hinge Pin Hole(s):

Hinge Pins:


Hydraulic Hoses:

Hose Connections:

Bleed Valve:




Hydraulic Cylinder(s) –Telescoping: Comments Regarding Inspected Items:Seals:

Main Ram:

Cylinder Hinge Points:

Pin Hole(s):

Pins:


Hydraulic Hoses:

Hose Connections:

Cylinder Stabilizers:

Bleed Valve:

Lubrication:

Mast Guides:Cleaned:

Lubricated:


11.0 LOCKING DEVICE & SEATS – TELESCOPING MASTS:Pin Hole(s):

Pins:


Bars/Dogs or Pawls:

Seats:

Mechanism:


12.0 TONG COUNTERWEIGHTS:Guides:

Weight Device:

Sheaves/Shafts:

Wirelines:

Cable Clamps:

Welds:





13.0 MISCELLANEOUSSHEAVE ASSEMBLIES: Comments Regarding Inspected Items:

Clevis/Shackle:

Mast Padeye:

Sheaves:

Bearings:

Shafts:

Sheave Bolt:

Side Plate Bolts:

Bolt Safety Pins:

Grease Fittings:

Safety Line:

14.0 MAST BOOM ASSEMBLY:Mounting Brackets:

Sheaves:

Boom Pole:

Support Cable/Clamps:

Bolts/Nuts:

Sheave Shaft:

Bolt Safety Pins:

Grease Fittings:


15.0 ANCILLARY EQUIPMENT:15.1 Mud Line Clamps:

Pipe Clamps:

Leg Clamps:

Welds:

Bolts/Nuts:

15.2 Gas Vent LineClamps:Pipe Clamps:

Leg Clamps:

Welds:

Bolts/Nuts:




Comments Regarding Inspected Items:15.3 Climber Assist System: (See User’s Manual for Specific Inspection Requirements)

Cable:

Cable Attachments:

Counter Weight:

Sheave/ControlDescent Device:

15.4 Fall Arrest System: (See User’s Manual for Specific Inspection Requirements)Cable:

Cable Attachments:

Counter Weight:

Sheave/ControlDecent Device:

15.5 Derrick Escape Device: (See User’s Manual for Specific Inspection Requirements)Derrick Attachment:

Cable:

Device Condition:

15.6 Windwalls/Frames and Attachments:Frame Condition:

Frame Welds:

Frame Bolts/Pins:

Metal Wall Sections:

15.7 Top Drive Mounting System:Rail(s):

Padeyes:

Mounting Brackets:

Pins/Bolts:


Cables:

Block Dollies:

Welds:




16.0 PAINT/COATING:Comments Regarding Inspected Items:

Condition:




17.0 COMMENTS, SKETCHES AND/OR PICTURES:

Inspector’s Signature: Date:

Owner Representative Signature: Date:




Appendix B – Derrick Visual Inspection FormPURPOSE & SCOPE OF INSPECTION: This report form and inspection procedure was developed as aguide for making and reporting field inspection in a thorough and uniform manner. The procedure isintended for use by personnel designated by MHPI to the extent that its use satisfies conditions for whichan inspection is intended. More detailed and critical inspections may be scheduled periodically, orordered to supplement a program of these inspections; if derricks are used in the upper range of theirload limits, or if structures may have been subjected to critical conditions which could effect safeperformance. This form is provided strictly as a guide and MHPI accepts no liability whatsoever for itsuse or scope.


Company:Rig #:


Location: Derrick Manufacturer:


Manufacturer’s Drawing Available for Use in Inspection: Yes: No:


Derrick Serial #:

Derrick Type: Bolted: Welded:

Type Rig: Platform: Jackup: Submersible:

Semi-submersible: Drill Ship:

Nameplate on Structure: Yes: No:






DERRICK


P If okay



1.0 CROWN ASSEMBLY:Make/Model:

1.1 SheavesNumber of Sheaves: Main Cluster Sheave Diameter:

Fastline Sheave Diameter:

Deadline Sheave Diameter:

Comments Regarding Inspected Items:Sheaves:

Grooves in Gage:

Shaft ∅ (Cat. IV Only)

Spacers or Seals:

Grease Fittings:

Bearings:

Drilling Line Guards:

1.2 Crown PlatformDecking:

Holes Covered:

Safety Gate:

Ladder Access:

Handrails:

Frame Straight

Welds:

Bolts and Nuts:

1.3 Crown Support BeamsBeam Straight:

Pins & Bolts:


Welds:




1.4 Additional Sheave Assemblies in CrownName:

Comments Regarding Inspected Items:Condition:

1.5 Padeyes Under the Crown Platform:SWL Marked:

Welds:

Pin Holes:

1.6 Fall Arrest/Climbing Assist Device Mounting:Support Pole:

Base:

Sheave Attachment:

Weight Bucket Attach:

Welds:

1.7 Crown Saver Block(s):Safety Mesh:

Safety Cable:

Block(s) Condition:

Attachment Strapping:

Strapping Welds:

1.8 A-Frame/Gin Pole:Frame Legs:

Bolt Connections:

Welds:

Access Platform:

Ladder:

Padeyes:

1.9 Top Beams/Water Table:Frame:

Welds:

Bolt Connections:





2 DERRICK LEGS:

2.1 Front Leg, Drillers Side: Comments Regarding Inspected Items:Leg Straight:

Bolt Connections:

Splice Connections:

Welds:

2.2 Front Leg, Off Drillers Side:Leg Straight:

Bolt Connections:

Splice Connections:

Welds:

2.3 Rear Leg, Drillers Side:Leg Straight:

Bolt Connections:

Splice Connections:

Welds:

2.4 Rear Leg, Off Drillers Side:Leg Straight:

Bolt Connections:

Splice Connections:

Welds:


3 GIRT(S) AND BRACING:Members Straight:

Bolt Connections:

Welds:


4.0 PEDESTALS, BASE PLATES :Condition:

Anchor Bolts:

Welds:





5.0 WORKING PLATFORMS

5.1 Pipe Racking Platform: Comments Regarding Inspected Items:Frame Straight:

Pin Hole(s):

Pins:


Frame Welds:

Working Platform:

Landing Platform:

Handrails:

Ladder Access:

Fingers Straight:

Finger Welds:

Finger Safety Line(s):

Hoist Mounting:


5.2 Casing Stabbing Board: (* See user’s manual for specific inspection requirements.)Frame Straight:

Welds:

Handrails:

Working Platform:

Hoisting Assembly*:

Hoist Mounting:

Lower Travel Stops:

Pin or Bolt Holes:

Pins or Bolts:


Ladder Access:


5.3 Tubing Support/Belly Board:Frame Straight:

Welds:

Handrails:

Pin Holes:

Pins:






5.4 Fourble Platform: Comments Regarding Inspected Items:Handrails:

Decking:

Bolt Connections:

Welds:

Safety Gates:


6.0 LADDERS:Vertical Rails Straight:

Rails in Alignment:

Ladder Stand Offs:

Stand Off Connections:

Rail Welds:

Rungs:

Rung Welds:

Rung Spacing:

Access at Rig Floor:

Cage:

Toe Clearance:


7.0 TONG COUNTERWEIGHTS:Guides:

Weight Device:

Sheaves:

Wirelines:

Cable Clamps:

Welds:





8.0 MISCELLANEOUS SHEAVEASSEMBLIES: Comments Regarding Inspected Items:

Clevis/Shackle:

Derrick Padeye:

Sheaves:

Bearings:

Shafts:

Sheave Bolt:

Side Plate Bolts:

Bolt Safety Pins:

Grease Fittings:

Safety Line:


9.0 ANCILLARY EQUIPMENT:

9.1 Mud Line Clamps:Pipe Clamps:

Leg Clamps:

Welds:

Bolts/Nuts:

9.2 Gas Vent Line Clamps:Pipe Clamps:

Leg Clamps:

Welds:

Bolts/Nuts:

9.3 Climber Assist System: (See User’s Manual for Specific Inspection Requirements)Cable:

Cable Attachments:

Counter Weight:


9.4 Fall Arrest System: (See User’s Manual for Specific Inspection Requirements)Cable:

Cable Attachments:

Counter Weight:





Comments Regarding Inspected Items:9.5 Derrick Escape Device: (See User’s Manual for Specific Inspection Requirements)

Derrick Attachment:

Cable:

Device Condition:

9.6 Windwalls, Heat Shields, Frames and Attachments:Frame Condition:

Frame Welds:

Frame Bolts/Pins:

Metal Wall Sections:

9.7 Top Drive Mounting System:Rail(s):

Pad-eyes:

Mounting Brackets:

Pins/Bolts:


Cables:

Block Dollies:

Welds:

9.8 V-door Rollers/Guides:Rollers:

Grease Fittings:

Welds:

Bolts & Nuts:

Brackets:

10.0 PAINT/COATING:Condition:




11.0 COMMENTS, SKETCHES AND/OR PICTURES:






Appendix C – Substructure Visual Inspection FormPURPOSE & SCOPE OF INSPECTION: This report form and inspection procedure was developed as aguide for making and reporting field inspection in a thorough and uniform manner. The procedure isintended for use by personnel designated by MHPI to the extent that its use satisfies conditions for whichan inspection is intended. More detailed and critical inspections may be scheduled periodically, orordered to supplement a program of these inspections; if derricks are used in the upper range of theirload limits, or if structures may have been subjected to critical conditions which could effect safeperformance. This form is provided strictly as a guide and MHPI accepts no liability whatsoever for itsuse or scope.


Company:Rig #:


Location: Manufacturer:



Substructure Serial #:

Substructure Type: Box on Box: Self Elevating:

Telescoping: Offshore:

Substructure Position: Elevated: Lowered: Disassembled:

Manufacturer’s Drawing Available: Yes: No:

Assembly Drawings Used in Inspection: Yes: No:

Nameplate on Structure: Yes: No:






SUBSTRUCTURE


P If okay



1.0 SHOES, PEDESTALS: Comments Regarding Inspected Items:Pin Connections:

Pin Holes:

Bolt Connections:

Bolt Holes:

Pins/Bolts:

Safety Pins:

Support Beams:

Welds:


2.0 FLOOR AREA:Floor Plates:

Handrails & Toe Boards:

Handrail Connections:

Setback Material:

Floor Bracing:

Welds:


3.0 SUB-SPREADERS AND ROTARY BEAMS:Rotary Beams:

Spreaders:

Pin Connections:

Pin Holes:

Pins:

Pad-eyes:

Welds:Number of Visible Marks Applied:




4.0 DEADLINE ANCHORMOUNTING: Comments Regarding Inspected Items:

Supports:

Bolts:

Flooring:

Breakover Assembly:

Handrails:

Welds:


5.0 SUBSTRUCTURE COMPONENTS:Beams Straight:

Cross Braces:

Pin/Bolt Holes:

Safety Pins:

Pull Back Posts:

Drawworks Tiedowns:

Welds:

BOP Anchor Pad-eyes:

Pad-eyes:


6.0 ENGINE FOUNDATION:Support Beams:

Cross Braces:

Pin/Bolt Holes:

Pins/Bolts:

Safety Pins:

Pad-eyes:





7.0 ENGINE FOUNDATIONSPREADERS: Comments Regarding Inspected Items:

Beams:

Cross Braces:

Pin/Bolt Holes:

Pins/Bolts:

Safety Pins:

Welds:


8.0 BOP TROLLEY BEAMS:Guides:

Weight Device:

Sheaves:

Wirelines:

Cable Clamps:

Welds:


9.0 RAISING EQUIPMENT:Pin Connections:

Pin Holes:

Pins:

Wirelines:

Sheaves:

Bearings:

Seals:

Grease Fittings:

Hydraulic Winches:

Hydraulic Cylinders:

Hydraulic Hoses:

Cylinder Hinge:





10.0 STAIRS/LANDINGS/FLOORING/HANDRAILS: Comments Regarding Inspected Items:

Welds:

Pin/Bolt Holes:

Pins/Bolts:

Floor Plating:

Stair Tread Spacing:

Handrail Sockets:


11.0 PAINT/COATING:Condition:

12.0 SKIDDING EQUIPMENT:Pad-eyes:

Pins:

Beam Clamps:

Jacks:

Jacking Motors:

Jacking Rack:




13.0 COMMENTS, DRAWINGS, AND/OR PICTURES:



pyramid inspection procedure - rev 0 - 010305

Documents

internationally

excess weld

possess adequate

38 maximum

category iv

category iii

field service

category iv