Terms

Lay Barge - or Pipe Laying Barge vessel laying pipelines on the seabed.
Liner Pipe - casing which does not reach quite up to the well-head.

Abbreviations

LAFTA - Latin America Free Trade Association
LLMC - International Convention on Limitation of Liability for Maritime Claims
LOF'90 - Lloyd's Open Form 1990 - standard form of salvage agreement.
LR - Lloyd's Register of Shipping - British classification society.