Method for using a multipurpose unit with multipurpose tower and a surface blow out preventer
First Claim
1. A method of drilling and completing an underwater well, wherein the method comprises the steps of:
- a. installing conductor casing from a floating vessel into a seabed and wherein the floating vessel has a mooring system that can limit excursions to a point that there is no risk of damage to a casing riser;
b. drilling a bore through the conductor casing to a defined depth in the seabed;
c. installing surface casing through the conductor casing, wherein the surface casing comprises a first end and a second end,d. disposing on a first end of the surface casing, a wellhead and a mudline suspension system;
e. connecting the wellhead to a connector which is then connected to a lower stress joint;
f. connecting the lower stress joint to a lower end of a tubular riser;
g. connecting the tubular riser to an upper stress joint;
h. connecting the upper stress joint to a surface wellhead in fluid communication with a surface blow out preventer;
i. connecting the surface blow out preventer and the surface wellhead to a tensioning system on the floating vessel; and
j. using a telescoping joint comprising a first joint end and a second joint end, wherein the first joint end connects to the surface blow out perventer and the second joint end connects to the floating vessel.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of drilling and completing an underwater well entails installing conductor casing from a floating vessel into a seabed; drilling a bore through the conductor casing to a defined depth in the seabed; and installing surface casing through the conductor casing. A high pressure wellhead and mudline suspension system engages the surface casing and are disposed on the first end. The lower stress joint is connected to a lower saver sub that connects to the casing riser'"'"'s lower end. The casing riser on an upper end is connected to an upper saver sub that engages a upper stress joint. The method ends by connecting the upper stress joint to a surface wellhead in fluid communication with a surface BOP; and connecting the surface BOP and the surface wellhead to a tensioning system on the floating vessel; and using a telescoping joint.
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Citations
33 Claims
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1. A method of drilling and completing an underwater well, wherein the method comprises the steps of:
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a. installing conductor casing from a floating vessel into a seabed and wherein the floating vessel has a mooring system that can limit excursions to a point that there is no risk of damage to a casing riser; b. drilling a bore through the conductor casing to a defined depth in the seabed; c. installing surface casing through the conductor casing, wherein the surface casing comprises a first end and a second end, d. disposing on a first end of the surface casing, a wellhead and a mudline suspension system; e. connecting the wellhead to a connector which is then connected to a lower stress joint; f. connecting the lower stress joint to a lower end of a tubular riser; g. connecting the tubular riser to an upper stress joint; h. connecting the upper stress joint to a surface wellhead in fluid communication with a surface blow out preventer; i. connecting the surface blow out preventer and the surface wellhead to a tensioning system on the floating vessel; and j. using a telescoping joint comprising a first joint end and a second joint end, wherein the first joint end connects to the surface blow out perventer and the second joint end connects to the floating vessel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification