Assertion: riser | /r/AtLocation | riser porches
Facets:
value: for fpsos
type: TRANSITIVE-OBJECT
value: for semisubmersible platform
type: PURPOSE
Source sentences:
text: The risers are secured at the surface platform with hydraulic tensioners for SPAR platforms and TLPs or are attached to riser porches for semisubmersible platform and FPSOs.