Downhole apparatus

Wells – Processes – Placing or shifting well part

Reexamination Certificate

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Details

C166S290000, C166S291000, C166S384000

Reexamination Certificate

active

10831882

ABSTRACT:
Apparatus (10) for facilitating coupling and cementing of downhole tubulars (12, 28) comprises a tubing section (12, 10) for use in lining a bore. The tubing section has upper and lower ends and defines a tubing wall having cement outlets (20) spaced from the lower end of the tubing. The lower end of the tubing is selectively closed, and swab cups (22) are provided externally of the lower end of the tubing below the cement outlets (20) for restricting passage of cement.

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