[Ask] Wellhead Design

[akmal_tm05]

Dear Sir/Madam,

I have a question about wellhead specification
I want to choose specs for casing head housing
What I have for my casing are 20"(driven), 13-3/8", 9-5/8".
the question is
Does it ok not to hang 13-3/8" to casing head housing ?
or is it a must to hang 13-3/8" casing to casing head housing.
(I intend to choose casing head for 9-5/8" casing only, casing head 9-5/8" x 11" x 3000 rather than 13-3/8" x 13-5/8" x 3000-> but this is what I see in normal design)


I really appreciate if anyone could help.

[Ayhan]

ıt ıs possible to see any pressure in 20" section (when drilling with 26" bit) ? and how much pressure (if it is not wildcat)?
if yes, u can use;

21 1/4” 2 M CHH
21 1/4” x 2M -13 5/8” 3M Casing Hanger Spool
13 5/8"3M-11"5M Spool

or ıf no,
u can cut 20" csg and u can start from directly 13 5/8” 3M CHH after 17 1/2" section.

U have various alternatives. If u write clearly what u want, ı can help u.

Regards,