Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Operators wary: Stack that rig correctly

Journal Article · · Drilling-DCW; (United States)
OSTI ID:6130622
This article points out that reasons for planned, scheduled preservation of offshore rigs and equipment are as varied as the owner's interest in them. As a result, no single plan or procedure can meet the requirements of every rig owner. Each rig and its equipment must be treated individually for a number of reasons. The most effective and economical rig preservation program is the result of both the owner and preservation contractor understanding all the objectives and the time frame involved. Numerous questions should be answered up front. How long will preservation measures be required. Is the rig to be maintained in an operational state. Will there be frequent trips to the rig. Will the unit be kept intact, or equipment removed as needed for operation of other rigs. Is the whole unit or any of its components for sale. Will insurance and certifications be affected by the preservation methods used. Perhaps most important is the time period. If the rig is to be stacked for an extended length of time, the owner will likely opt for ''cold,'' or inoperable, preservation. In this condition, engines are treated to protect cylinders, cooling systems and drive components in a static condition.
Research Organization:
Stewart and Stevenson Services Inc.
OSTI ID:
6130622
Journal Information:
Drilling-DCW; (United States), Journal Name: Drilling-DCW; (United States) Vol. 48:4; ISSN DRDCD
Country of Publication:
United States
Language:
English