12/5/2016 Gaskets Seals And We ll heads Api Type R Ri ng Join t Gasket - We ll Co ntro l ht tp: //www.netwa sgr oup.us/we ll - contro l-2/ gask et s -seals-a nd- well heads -api-t y pe- r-rin g-join t -g ask et. html 1/14 Netwas Group Oil » Well Control Gaskets Seals And Wellheads Api Type R Ring Joint Gasket Last Updated on Mon, 11 Apr 2016 | Well Control The type 'R' ring joint gasket is not energised by intern al pres sure. Sealing takes place along small bands of contact between the grooves and the gasket, on both the OD and ID of the gasket. The gasket may be either oct agonal or oval in cross section. The type 'R' design does not allow face-to-face con tact between the hubs or flanges, so external loads are transmitted through the sealing surfaces ofthe ring. Vibration and external loads may cause the small band s of contact between the ring and the ring grooves to deform the plastic, so that the joint may develop a leak unless the flange bolting is periodically tightened. Standard procedure with type 'R' joints in the BOP stackis to tighten the flange bolting weekly. Figure 6.4.1 Figure 6.4.1 ENERGISED Review Seismic Isolation Designers Popular Articles Table Example Calculation Derrick Contract Types Drilling Operations Operational procedure stripping Carbonate Bicarbonate Electric Motors Shale Shakers Circle Uncertainty Oil Well Combination Traps Drilling Services Magnetic Declination Angle Fundamental Principles Well Differential Hydrostatic Pressure Lubinskfs Maximum Permissible Constant Bottom Hole Pressure Kill Critical Rotary Speeds Oil Well Pressure Column Drilling Catenary Curve Well Plan Drilling Categories Oil Well Drilling Drilling Fluids Drilling Guide Drilling Engineering Drilling Procedures Drilling Engineering Drilling Operations Drilling Services Directional Drilling Drilling Fluids Well Control Offshore Drilling Well Control Horizontal Directional Drilling Petroleum Engineering Formulas and Calculations Drilling Fluid Systems Air and Gas Drilling Drilling Risers Systems Formulas and Calculations Waste Management Drilling Engineering Health Risk Management
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'CIW' Type 'CX' Pressure-Energised Ring Joint Gasket
The 'CX' pressure-energised ring joint gasket was developed by Cameron Iron
Works. Sealing takes place along small bands of contact between the grooves and
the OD of the gasket. The gasket is made slightly larger in diameter than the
grooves, and is compressed slightly to achieve initial sealing as the joint is
tightened. The gasket is patterned after the 'AX' and 'VX' gasket, but is recessed,
rather than being flush with the well bore, for protection against keyseating. The
gasket seals on approximately the same diameter as do the 'RX' and 'BX' gaskets.
The belt at the centre of the gasket keeps it from buckling or cocking as the joint
is being made up. Since the 'CX' gasket is protected from keyseating, it is suitable
for use through the BOP and riser system, except at the base of the wellhead and
riser connectors. The gasket design allows face-to-face contact between the clamp
hubs or flanges to be achieved with minimal clamping force. External loads are
transmitted entirely through the hub faces and cannot damage the gasket.
Figure 6.4.15 Figure 6.4.16
Figure 6.4.15 Figure 6.4.16
section 6 : WELL CONTROL EQUIPMENT
Application of Type 'AX', 'VX' and 'CX' Pressure-Energised Ring Joint Gaskets
The 'AX', 'VX' and 'CX' face-to-face pressure-energised ring gaskets allow face-to-
face contact between the hubs to be achieved with minimal clamping force. The
'AX' and 'VX' gasket is used at the base of the wellhead and riser connector when
the hubs are separated. The 'AX'/'VX' design ensures that axial pressure loadingon the connector is held to an absolute minimum. The 'AX' gasket also is suitable
for side outlets on the BOP stack, since these outlets are not subject to
keyseating. The 'CX' gasket is recessed for protection against keyseating. The 'CX'
gasket is suitable for use throughout the BOP and riser system, except at the
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Responses
0 0
4 years ago
Where do rx gaskets seal?
Alex
Reply
4 years ago
What are the sealing areas of ring gasket and ring grove?
olga
Reply
3 years ago
What is the benifit of cameron cx gaskets?
Robel
Reply
3 years ago
What is the external pressure rating of a VX vetco ring gasket?