Universal tubing hanger suspension assembly and well completion system and method of using same
AssigneeArgus Subsea, Inc.
InventorEarl Broussard
Life of this patent
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Abstract
A tubing hanger suspension assembly for an oil and gas well completion system and a method of installing same. The tubing hanger suspension assembly includes a tubing hanger housing which is positioned in the wellhead housing. The tubing hanger assembly includes a sealing and lockdown mechanism capable of providing sealing and load support of the production tubing in the production casing string. A stab sub assembly connected to the upper end of the tubing hanger suspension assembly and lower end of the Christmas tree assembly provides downhole hydraulic and electric functionality and annulus access to the production tubing.
Claims32
In a well assembly having a wellhead housing (14) defining a wellhead bore, a production casing string (18) extending down a well bore (B) to a production zone and coupled to the wellhead housing, and a production tubing string (22) connected to a tubing hanger housing (24), the improvement comprising:
- a lower assembly (32) coupled to a lower end of the tubing hanger housing and having a bore therethrough, the production tubing string extending through said lower assembly bore and defining a lower assembly production annulus (32a) between said lower assembly and the production tubing string, and said lower assembly including a movement prevention locking apparatus (40) locking said lower assembly to a non-profiled surface of the production casing string.
In a well assembly having a wellhead housing (14) defining a wellhead bore, a production casing string (18) extending down a well bore (B) and coupled to the wellhead housing, and a production tubing string (22) connected to a tubing hanger housing (24), the improvement comprising:
- a lower assembly (32) coupled to a lower end of the tubing hanger housing and having a bore therethrough, the production tubing string extending through said lower assembly bore and defining a lower assembly production annulus (32a) between said lower assembly and the production tubing string, and said lower assembly including a movement prevention locking apparatus (40) locking said lower assembly to the production casing string,
- wherein a production casing hanger (18a) is coupled to the production casing string (18) and a stop apparatus (80) is attached to the tubing hanger housing (24), said stop apparatus cooperating with the casing hanger to limit downward movement of the tubing hanger housing.
In a well assembly having a wellhead housing (14) defining a wellhead bore, a production casing string (18) extending down a well bore (B) and coupled to the wellhead housing, and a production tubing string (22) connected to a tubing hanger housing (24), the improvement comprising:
- a lower assembly (32) coupled to a lower end of the tubing hanger housing and having a bore therethrough, the production tubing string extending through said lower assembly bore and defining a lower assembly production annulus (32a) between said lower assembly and the production tubing string, and said lower assembly including a movement prevention locking apparatus (40) locking said lower assembly to the production casing string;
- the tubing hanger housing (24) having a production bore (24a) and an annulus bore (24b);
- a tree assembly (60) having a production bore (62) and an annulus bore (70), said tree assembly mounting to the wellhead housing (14);
- and
- a stab sub assembly (74) having a first end connected to said tree assembly and a second end connected to the tubing hanger housing, said stab sub assembly having a production bore (74a) providing fluid communication between said production bores of said tree assembly and the tubing hanger housing, and said stab sub assembly having an annulus bore (74b) providing fluid communication between said annulus bores of said tree assembly and the tubing hanger housing.
In a well assembly having a wellhead housing (14) defining a wellhead bore, an inner casing string (18) coupled to the wellhead housing and extending down a well bore (B) to a producing zone (Z), and a production tubing string (22) connected to a tubing hanger housing (24), the improvement comprising:
- a lower assembly (32) coupled to a lower end of the tubing hanger housing and having a bore therethrough, the production tubing string extending through said lower assembly bore and defining a lower assembly production annulus (32a) between said lower assembly and the production tubing string, and said lower assembly including a movement prevention locking apparatus (40) locking said lower assembly to the inner casing string.
In a well assembly having a wellhead housing (14) defining a wellhead bore, a string of production casing (18) extending down a well bore (B) and connected to a production casing hanger (18a) coupled to the wellhead housing, and a production tubing string (22) connected to a tubing hanger housing (24), the improvement comprising:
- a lower assembly (32) connected to the tubing hanger housing and having a bore therethrough, the production tubing string extending through said lower assembly bore and defining a lower assembly production annulus (32a) between said lower assembly and the production tubing string, and said lower assembly including a movement prevention locking apparatus (40) locking said lower assembly to a non-profiled surface of the production casing.
Dependencies are inferred from the claim text.