Environmental Engineering Reference
In-Depth Information
isolation of gas-bearing formations and wet zones from primary oil-producing horizons
and isolation of shallow drinking-water aquifers from deeper saltwater formations.
Cements themselves are classifi ed by API classifi cation letters A-J. Table
12.1
details the well depths, temperatures, and slurry weights for these cements. For
further details, refer to service company handbooks.
Fig. 12.1
Primary cementing
procedures. Courtesy
Halliburton Services
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