No.
Instructions
Comments and recorded
values
Standards and instructions
Rig's
Ram Preventers Drift tests
7.1.1The drift test is required on Ram BOP, Annular BOP, Hydraulic connectors, drilling spools and adapters.
API Spec 16A chapter 7.5.8.47.1.2
The equipment size and rated working pressure: TABLE 1-API 16A
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API Spec 16A chapter 4.2.2
7.1.3Pass a drift mandrel through the bore of the asmbly after all pressure testing
API Spec 16A chapter 7.5.8.4.17.1.4The drift mandrel diameter shall be in accordance with the drift diameter in Table 1 with a tolerance of plus 0.010 inch and minus 0.000 inch
API Spec 16A chapter 7.5.8.4.1.1
7.1.5
The drift mandrel gauge length shall be at least 2 inches longer than any cavity that intercts the bo
re, but no less than 12 inches.
API Spec 16A chapter 7.5.8.4.1.2
Temperature ratings
7.1 GENERAL
Contents of substraction from API Specification 16A Specification for Drill Through Equipment
7.1 GENERAL
values
白菜粉丝汤的做法API Spec 16A chapter 4.2.2 7.1.6The minimum temperature is the lowest ambient temperature the
equipment may be subjected.
API Spec 16A chapter 4.2.2 7.1.7The maximum temperature is the highest temperature of the fluid which
may flow through the equipment
API Spec 16A chapter 4.2.2.1 7.1.8Equipment shall be designed for metallic parts to operate with the
temperature shown in Table 2
API Spec 16A chapter 8.3.4.2 7.1.9The temperature class of the welfare non metallic components shall be as
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follows:
7.1.10Temperature Rating Metallic Materials API Spec 16A chapter 8.4.2.4
values
7.1.11Dimensions for the type 16B integral hubs shall be conform to table 5 of page 10 API Spec 16A
雾凇岛API Spec 16A chapter 4.3.4.2.2.2.1
7.1.12
Dimensions for the type 16B hubs blind hubs shall be conform Figure 3page 9 API Spec 16A
API Spec 16A chapter 4.3.4.2.2.2.1
7.1.13Dimensions for the type 16BX integral hubs shall be conform to table 6.7 or 8 of API Spec 16A
API Spec 16A chapter 4.3.4.2.3.2.1
7.1.14Dimensions for the type 16BX blind l hubs shall be conform to fig 3 of API Spec 16A
API Spec 16A chapter 4.3.4.2.3.2.1
7.1.15Dimensions for all ring groves shall conform to Tables 6,7, or 8 of API Spec 16A
API Spec 16A chapter 4.3.4.2.3.2.1
7.1.16
Type BX hubs may be manufactured with corrosion resistant overlays in the ring grooves. Prior to overlay the ring grooves shall conform to API Specification 6A
API Spec 16A chapter 4.3.4.2.3.4
七夕感言7.1.17All clamps shall have grooves in their bores with 25 (+/-0.25) degree angles to fit API 16B and 16BX hubs
API Spec 16A chapter 4.3.5.2.3.3
7.1.18All 25 degree surfaces in clamp grooves shall have a surface finish of 32RMS or less
API Spec 16A chapter 4.3.5.2.3.4
7.1.19
The clamp bore shall provide a minimum of 0.125 inch radial clearance around the hub neck in the made up condition on all hubs it is designed to fit
API Spec 16A chapter 4.3.5.2.3.6
7.1.20
Spherical face heavy nuts or spherical washers shall be ud to minimize potential bending in bolts.
API Spec 16A chapter 4.3.5.2.3.8
7.1.21
Type R, RX and BX ring-joint gaskets are ud in flanged, studded and hub connections. Type R and RX gaskets are interchangeable in type R ring grooves. Only type RX gaskets are to be ud with SR ring grooves. Only type BX gaskets are to be ud with 6BX grooves. Type RX and BX gaskets are not interchangeable.
API Spec 16A chapter 4.3.7.1
7.1.22Hydrostatic proof testing shall be as shown in Table 18 of API Spec 16A API Spec 16A chapter 7.5.8.6.2.2.
7.1.22
Table 18 - Hydrostatic Test Pressure (psi)
API Spec 16A chapter 7.5.8.6.3.1
Clamps
U of gaskets
Hydrostatic Proof Testing
16B hubs
16BX hubs
values
7.1.23The hydrostatic proof test shall consist of three steps:API Spec 16A chapter 7.5.8.6.4
a) the initial pressure-holding period of not less than 3 minutes.
b) the reduction of the pressure to zero
c) The cond pressure-holding period of not less than 15 minutes
7.1.24The timing of the test shall not start until the test pressure has been
stabilized within the manufacturer's specified range and the external
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surfaces have been thoroughly dried.API Spec 16A chapter 7.5.8.6.4.1
7.1.25The hydraulic operating chamber shall be tested at a minimum test
pressure equal to 1.5 times the operating chambers rated working
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pressure.API Spec 16A chapter 7.5.8.6.3.2
7.1.26Each ram and annular blow out preventer shall be subjected to a clod
preventer test after the hydraulic proof test. The hydraulic operating system
pressure ud shall be equal to or less than the manufacturer's specified
operating pressure.API Spec 16A chapter 7.5.8.7.1.1关于黄山的古诗
7.1.27The timing of all clod preventer tests shall not start until the test pressure
has stabilid .API Spec 16A chapter 7.5.8.7.1.2
7.1.28Clod preventer tests shall be performed at low and high pressure with the
low pressure tests always preceding the high pressure test API Spec 16A chapter 7.5.8.7.1.3
7.1.29 A pressure of 200 to 300 psi shall be applied and held below the clod
ram or annular packing unit for a time period of not less than 10 minutes
after stabilization API Spec 16A chapter 7.5.8.7.1.3.1
Hydraulic Operating Chamber Test Clod Preventer Test
values
