Fluid Line Exit Block With Dual Metal-to-Metal Sealing

Abstract

A termination block assembly for fluidly coupling a fluid line at a hydrocarbon production device includes a fluid line block with an inner surface selectively mated to a corresponding surface of the hydrocarbon production device. The fluid line block has a protruding member extending from the inner surface. A primary seal is located at an end of the protruding member. The primary seal has an inner diameter selectively circumscribing the fluid line extending from the hydrocarbon production device, and an outer diameter selectively engaging a sidewall passage surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device. A secondary seal circumscribes the protruding member, engaging both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device.

What is claimed is: 
     
         1 . A termination block assembly for fluidly coupling a fluid line at a hydrocarbon production device, the termination block assembly comprising:
 a fluid line block with an inner surface selectively mated to a corresponding surface of the hydrocarbon production device, the fluid line block having a protruding member extending from the inner surface;   a primary seal located at an end of the protruding member, the primary seal having an inner diameter selectively circumscribing the fluid line extending from the hydrocarbon production device, and an outer diameter selectively engaging a sidewall passage surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device; and   a secondary seal circumscribing the protruding member, engaging both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device.   
     
     
         2 . The termination block assembly of  claim 1 , wherein the primary seal includes a flexible end portion of the protruding member selectively forming a metal to metal seal with the sidewall passage surface of the hydrocarbon production device. 
     
     
         3 . The termination block assembly of  claim 1 , wherein the secondary seal is a metal seal ring with a base and a leg that extends from the base and engages both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device. 
     
     
         4 . The termination block assembly of  claim 1 , wherein the fluid line block has a test port and wherein the primary seal and the secondary seal are testable with the test port. 
     
     
         5 . The termination block assembly of  claim 1 , further comprising an anchor fitting attached to the fluid line retaining the fluid line in position relative to the hydrocarbon production device. 
     
     
         6 . The termination block assembly of  claim 1 , wherein the fluid line block includes an inlet port and a fluid passage between the inlet port and the fluid line. 
     
     
         7 . The termination block assembly of  claim 6 , wherein the fluid line block includes at least one needle valve assembly with a needle end that engages a needle seat within the fluid passage, selectively sealing the fluid passage. 
     
     
         8 . The termination block assembly of  claim 6 , wherein the inlet port is in fluid communication with an annulus between tubular members of a wellbore. 
     
     
         9 . The termination block assembly of  claim 6 , wherein the inlet port is in fluid communication with a non-annular bore of a hydrocarbon well. 
     
     
         10 . A termination block assembly for fluidly coupling a fluid line at a hydrocarbon production device, the termination block assembly comprising:
 a fluid line block with an inner surface selectively mated to a corresponding surface of the hydrocarbon production device, the fluid line block having a protruding member extending from the inner surface;   a flexible seal located at an end of the protruding member, the flexible seal having an inner diameter selectively circumscribing the fluid line extending from the hydrocarbon production device, and an outer diameter selectively engaging a sidewall passage surface of the hydrocarbon production device and forming a first metal to metal seal between the fluid line block and the hydrocarbon production device;   a metal seal ring circumscribing the protruding member, the metal seal ring having a base and a leg that extends radially outward from the base and selectively engages both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device forming a second metal to metal seal between the fluid line block and the hydrocarbon production device.   
     
     
         11 . The termination block assembly of  claim 10 , further comprising a test port located in the fluid line block, the test port being in selective fluid communication with the flexible seal and the metal seal ring for testing an integrity of the first and second metal to metal seals. 
     
     
         12 . The termination block assembly of  claim 10 , wherein the fluid line block includes:
 an inlet port;   a fluid passage between the inlet port and the fluid line; and   at least one needle valve assembly with a needle end that engages a needle seat within the fluid passage, selectively sealing the fluid passage.   
     
     
         13 . The termination block assembly of  claim 10 , wherein the fluid line block includes:
 a plurality of inlet ports;   a fluid passage between each of the inlet ports and the fluid line; and   at least one needle valve assembly associated with each fluid passage, each needle valve assembly having a needle end that engages a needle seat within such fluid passage, selectively sealing such fluid passage.   
     
     
         14 . The termination block assembly of  claim 10 , wherein the fluid block includes an inlet port in fluid communication with the fluid line, the fluid line extending into a pressure containing portion of the hydrocarbon production device. 
     
     
         15 . The termination block assembly of  claim 10 , further comprising an anchor fitting attached to the fluid line retaining the fluid line relative to the hydrocarbon production device. 
     
     
         16 . A termination block assembly for fluidly coupling a fluid line at a hydrocarbon production device, the termination block assembly comprising:
 a fluid line block with an inner surface selectively mated to a corresponding surface of the hydrocarbon production device, the fluid line block having a protruding member extending from the inner surface;   a primary seal located at an end of the protruding member, the primary seal having an inner diameter selectively circumscribing the fluid line extending from the hydrocarbon production device, and an outer diameter selectively engaging a sidewall passage surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device;   a secondary seal circumscribing the protruding member, engaging both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device and sealing between the fluid line block and the hydrocarbon production device, the primary seal and the secondary seal defining an annular cavity between the fluid line block and the hydrocarbon production device; and   a test port in fluid communication with the annular cavity for monitoring pressure within the annular cavity.   
     
     
         17 . The termination block assembly of  claim 16 , wherein:
 the primary seal includes a flexible end portion of the protruding member selectively forming a metal to metal seal with the sidewall passage surface of the hydrocarbon production device; and   the secondary seal is a metal seal ring with a base and a leg that extends from the base and engages both the inner surface of the fluid line block and the corresponding surface of the hydrocarbon production device.   
     
     
         18 . The termination block assembly of  claim 16 , further comprising an anchor fitting located at an end of the fluid line, retaining the fluid line in position relative to the hydrocarbon production device. 
     
     
         19 . The termination block assembly of  claim 16 , wherein the fluid block includes an inlet port in fluid communication with the fluid line, the fluid line extending into an annular pressure containing portion of the hydrocarbon production device. 
     
     
         20 . The termination block assembly of  claim 16 , wherein the fluid block includes an inlet port in fluid communication with the fluid line, the fluid line extending into a main central bore of the pressure containing portion of the hydrocarbon production device.