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U.S. Department of Energy
Office of Scientific and Technical Information

Wellbore fluid sampling apparatus

Patent ·
OSTI ID:7263365
This patent describes a wellbore fluid sampling apparatus. It comprises: an elongated barrel member including a passage extending therein and defining a fluid sample chamber; spaced apart valve closure members supported on the barrel member and operable, respectively, to be moved from open positions permitting flow of fluid into and through the chamber to closed positions to trap a sample of fluid in the chamber; and means for moving the closure members between open and closed positions to trap of wellbore fluid in the chamber.
Assignee:
Atlantic Richfield Co., Los Angeles, CA
Patent Number(s):
US 4871019
Application Number:
PPN: US 7-241535A
OSTI ID:
7263365
Country of Publication:
United States
Language:
English