BOP single-piece replaceable insert
OwnerSudhir Shrivallabh Puranik, Mansing Mohan Phase +1inventors
InventorsSudhir Shrivallabh Puranik, Mansing Mohan Phase, Kauntey Suresh Angal
Life of this patent
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Abstract
A replaceable seat seal is used to form a replaceable portion of the ram cavity in a BOP that allows the upper central portion of the ram cavity to be replaced when wear occurs. A method is provided to produce a BOP that with a replaceable portion of the ram cavity. The single piece insert, also referred to as a single insert, utilizes only the single insert to repair the BOP as compared to another design that comprised a top insert, bottom insert, and two side inserts. The top insert of the prior art is comparable in construction and mounting position to the single insert.
Claims18
A method for producing a BOP, said BOP comprising a throughbore and a ram cavity that intersects said throughbore, said method comprising the steps of:
- machining a recess at an intersection of said throughbore and said ram cavity, said recess comprising a throughbore portion and a cavity portion;
- providing that when said BOP is in an operating position then said recess is positioned at an upper intersection of said ram cavity and said throughbore;
- inserting an insert into said recess, said insert comprising a body and a neck extending from said body, providing that said insert is mounted in said BOP without a side insert or bottom insert;
- providing a neck seal ring on said neck that seals with said throughbore portion of said recess;
- providing a cavity seal ring on said insert that seals with said recess in said cavity portion of said recess;
- and
- providing fasteners that mount in said neck that engage said throughbore portion of said recess.
A replaceable seat seal assembly comprising:
- a BOP defining a throughbore and a ram cavity that intersects said throughbore;
- a recess at an intersection of said throughbore and said ram cavity, when said BOP is in an operating position then said recess is positioned at an upper intersection of said ram cavity and said throughbore;
- said recess comprising a throughbore portion of said recess in said throughbore;
- said recess comprising a cavity portion of said recess in said ram cavity;
- an insert that fits into said recess, said insert comprises a body and a neck extending from said body, said insert is mounted in said BOP without a side insert or bottom insert;
- said neck further comprises a neck seal ring that seals with said throughbore portion of said recess;
- said insert further comprising a cavity seal ring on a surface of said body that seals with said cavity portion of said recess;
- and
- fasteners that engage a surface of said throughbore portion of said recess that secure said neck of said insert within said throughbore portion of said recess.
A method for producing a BOP, said BOP comprising a throughbore and a ram cavity that intersects said throughbore, said method comprising the steps of:
- machining a recess at an intersection of said throughbore and said ram cavity, said recess comprising a throughbore portion and a cavity portion;
- providing that said cavity portion of said recess does not extend around a circumference of said ram cavity;
- providing that said throughbore portion of said recess extends around a circumference of said throughbore;
- inserting an insert into said recess, said insert comprising a body and a neck extending from said body;
- providing a neck seal ring on said neck that seals with said throughbore portion of said recess;
- providing a cavity seal ring on said insert that seals with said recess in a cavity portion of said recess;
- and
- providing fasteners that mount in said neck that engage a surface of said throughbore portion of said recess.
Dependencies are inferred from the claim text.