API 7G-2 : 2009

RECOMMENDED PRACTICE FOR INSPECTION AND CLASSIFICATION OF USED DRILL STEM ELEMENTS

American Petroleum Institute

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API Foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
   4.1 Symbols
   4.2 Abbreviated terms
5 Conformance
   5.1 Basis for inspection
   5.2 Repeatability of results
   5.3 Ordering information
6 Quality assurance
   6.1 General
   6.2 Standardization and operating procedures
   6.3 Equipment description
   6.4 Personnel qualification
   6.5 Dynamic test data demonstrating the system
         capabilities for detecting the reference
         indicators
   6.6 Reports
7 Qualification of inspection personnel
   7.1 General
   7.2 Written procedure
   7.3 Qualification responsibility and requirements
   7.4 Training programmes
   7.5 Examinations
   7.6 Experience
   7.7 Re-qualification
   7.8 Documentation
   7.9 NDT personnel certification
8 General inspection procedures
   8.1 General
   8.2 Owner/operator work site requirements for quality
         inspection
   8.3 Documents at job site
   8.4 Pre-inspection procedures
   8.5 Drill-pipe and tool-joint classification markings
   8.6 Post-inspection procedures
9 General non-destructive inspection method requirements
   9.1 General
   9.2 Equipment
   9.3 Illumination
   9.4 Magnetic-particle-inspection equipment
   9.5 Ultrasonic
   9.6 Electromagnetic inspection units
10 Drill stem element inspection and classification
   10.1 Pipe body - Full-length visual inspection
   10.2 Drill body - Outside diameter gauging
   10.3 Pipe body - Ultrasonic wall-thickness gauging
   10.4 Pipe body - Full-length electromagnetic inspection
         (EMI)
   10.5 Pipe body - Full-length ultrasonic transverse and
         wall thickness
   10.6 Pipe body - Full-length ultrasonic transverse, wall
         thickness and longitudinal inspection
   10.7 Drill-pipe body - External magnetic-particle inspection
         of the critical area
   10.8 Drill-pipe body - Bi-directional external magnetic-particle
         inspection of the critical area
   10.9 Pipe body - Full-length wall-loss inspection
   10.10 Pipe body - Ultrasonic inspection of the critical area
   10.11 Pipe body - Calculation of cross-sectional area
   10.12 Pipe body - Document review (traceability)
   10.13 Pipe body - Evaluation and classification
   10.14 Tool joints
   10.15 Tool joints - Check for box swell and pin stretch
   10.16 Repair of rejected tool joints
   10.17 Tool joints - Check tool-joint pin and box outside
         diameter and eccentric wear
   10.18 Tool joints - Measure tool-joint pin and box outside
         diameter and check for eccentric wear
   10.19 Tool joints - Check tool-joint pin and box tong space
   10.20 Tool joints - Measure tool-joint pin and box tong space
   10.21 Tool joint - Magnetic-particle inspection of the pin
         threads
   10.22 Tool joint - Magnetic-particle inspection of box threads
   10.23 Tool joints - Measure tool-joint pin inside diameter
   10.24 Magnetic-particle inspection of the connection OD for
         heat-check cracking
   10.25 Bi-directional wet magnetic-particle inspection of the
         connection OD for heat-check cracking
   10.26 Tool joints - Measure the tool-joint counterbore depth,
         pin-base length and seal width
   10.27 BHA connection - Visual inspection of bevels, seals,
         threads and stress-relief features
   10.28 BHA - Measure box outside diameter, pin inside diameter,
         counterbore diameter and benchmark location if a benchmark
         is present
   10.29 BHA - Check bevel diameter
   10.30 BHA - Measure bevel diameter
   10.31 BHA - Magnetic-particle inspection of the pin and box
         threads
   10.32 BHA connection - Liquid-penetrant inspection of the pin
         and box threads
   10.33 BHA - Dimensional measurement of stress-relief features
   10.34 Length measurements of the counterbore, pin and pin neck
   10.35 Drill collar - Visual full-length OD and ID, markings,
         fish-neck length and tong space
   10.36 Drill-collar elevator groove and slip-recess
         magnetic-particle inspection
   10.37 Drill-collar elevator-groove and slip-recess measurement
   10.38 Subs (full-length visual OD and ID), fish-neck length,
         section-change radius and markings
   10.39 Float-bore recess measurements
   10.40 Magnetic-particle inspection of subs - Full-length,
         internal and external
   10.41 HWDP - Visual full-length OD and ID, markings and tong
         space
   10.42 Visual inspection and wear pattern report for kelly
   10.43 Magnetic-particle evaluation of critical areas on kellys
   10.44 Magnetic-particle evaluation, full length, of the drive
         section on kellys
   10.45 Stabilizer (full-length visual OD and ID), fish-neck
         length, blade condition, ring gauge and markings
   10.46 Magnetic-particle inspection of the base of stabilizer
         blades for cracking
   10.47 Function test
   10.48 Bi-directional, wet magnetic-particle inspection of the
         base of stabilizer blade for cracking
   10.49 Visual inspection of jars (drilling and fishing),
         accelerators and shock subs
   10.50 Maintenance review
   10.51 Dimensional measurement of wear areas as specified by OEM
         requirements
   10.52 Original equipment manufacturer designated testing for used
         equipment
   10.53 MWD/LWD - Visual, full-length OD and ID, and markings,
         including visual inspection hard-banding and coatings
   10.54 Motors and turbines - Visual, full-length OD and ID and
         markings, including visual inspection of hard-banding and
         coatings
   10.55 Reamers, scrapers, and hole openers - Visual, full-length
         OD and ID and markings, including visual inspection of
         hard-banding and coatings
   10.56 Rotary steerable - Visual, full-length OD and ID and
         markings, including visual inspection of hard-banding
   10.57 Full-length drift
   10.58 Proprietary equipment inspection
   10.59 Hard-banding inspection
   10.60 Transverse magnetic-particle inspection of tool-joint OD
         and ID under the pin threads
   10.61 Drill-pipe body - Internal magnetic-particle inspection of
         the critical area
   10.62 Drill-pipe body - Bi-directional, internal magnetic-particle
         inspection of the critical area
   10.63 API external upset-thread connection inspection
Annex A (normative) - Original equipment manufacturer (OEM)
        requirements
Annex B (normative) - Required and additional inspections by
        product and class of service
Annex C (normative) - SI units
Annex D (informative) - USC units
Annex E (informative) - Inspection-level guidelines
Annex F (informative) - Proprietary drill stem connection inspection
Annex G (informative) - Used work-string tubing proprietary-connection
        thread inspection
Bibliography