Wells – Processes – Placing or shifting well part
Reexamination Certificate
2005-11-15
2005-11-15
Gay, Jennifer H (Department: 3672)
Wells
Processes
Placing or shifting well part
C166S089200, C166S097500, C166S368000, C166S242300
Reexamination Certificate
active
06964306
ABSTRACT:
A manifold device connects in series between the wellhead and the outer casing of a well for providing access to the outer casing of the well without removing the wellhead. The device includes a tubular body for receiving the tubing string of the well therethrough. Plural access passages are formed in the tubular body to extend generally in the longitudinal direction of the body between an external end which is spaced radially from the hollow interior of the tubular body and an internal end converging in communication with the hollow interior at the bottom end of the manifold device. Well servicing tools can be inserted into the casing annulus defined between the outer casing and the tubing string of the well through one of the access passages formed in the tubular body of the manifold device.
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Battison Adrian D.
Dupuis Ryan W.
Gay Jennifer H
Williams Michael R.
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