Replaceable seat seal assembly

A replaceable seat seal assembly for a BOP comprising:

• a BOP defines a throughbore and ram cavity that intersects said throughbore;
• a first insert centrally positioned in said BOP around said throughbore that forms a first surface of a replaceable portion of said ram cavity for said BOP;
• and
• a second insert centrally positioned in said BOP around said throughbore that forms a second surface of said replaceable portion of said ram cavity.

A replaceable seat seal assembly for a BOP comprising:

• a BOP defining a throughbore and a ram cavity that intersects said throughbore;
• at least one pocket formed in an upper surface of said ram cavity surrounding said throughbore;
• a non-metallic insert that fits into said at least one pocket and forms an upper surface of a replaceable portion of said ram cavity for said BOP when said BOP is oriented for operation, said non-metallic insert on said upper surface surrounds said throughbore;
• a neck of said non-metallic insert that extends into said throughbore;
• and
• rams that slide with respect to said non-metallic insert to open and close said BOP.

A replaceable seat seal assembly for a BOP comprising:

• a BOP defining a throughbore and a ram cavity that intersects said throughbore;
• at least one pocket formed in said throughbore;
• an insert that forms an upper surface of a replaceable portion of said ram cavity for said BOP when said BOP is oriented for operation, said insert on said upper surface surrounds said throughbore;
• a neck of said insert that extends into said at least one pocket formed in said throughbore;
• and
• rams that slide with respect to said insert to open and close said BOP.