Modular Head for Well Tubulars

Abstract

A head for a well tubular. The well tubular head includes features that may be applied to a casing head or a tubing head. The well tubular head includes a bowl tubular reversibly connected with a casing connector. The bowl tubular is adapted for connecting with an uphole component of an equipment stack or other system. The bowl tubular includes a hanger profile for receiving a casing hanger or tubing hanger. The casing connector is adapted for connecting with the casing. The bowl tubular and the casing connector may be replaced independently of each other. Removable connection points for flow lines may be includ-ed on the well tubular head to facilitate changing flow lines or flow line connection points. The bowl tubular may include a dri-ve system for rotating tubing.

1 - 83 . (canceled) 
     
     
         84 . A modular well tubular head comprising:
 a bowl tubular for connecting with an uphole component, the bowl tubular comprising a bowl body;   a casing connector for reversibly connecting with the bowl tubular and for sealingly connecting with casing, the casing connector comprising a connector body, wherein a flow path is defined through the connector body and the bowl body;   a port defined in the well tubular head for providing fluid communication between the flow path and a flow line; and   a removable connection point reversibly connected with the well tubular head at the port, the removable connection point comprising a threaded box end for connecting with the flow line;   wherein the bowl tubular comprises an uphole component connection point on the bowl body for connecting with the uphole component, a first modular connection point on the bowl body for reversibly connecting with the casing connector, and a hanger profile defined on an inside surface of the bowl body; and   the casing connector comprises a casing connection point on the connector body for sealingly connecting with the casing, and a second modular connection point on the connector body for reversibly connecting with the bowl body.   
     
     
         85 . The well tubular head of  claim 84 , further comprising a bowl tubular extended gripping surface on the bowl body for gripping with power tongs. 
     
     
         86 . The well tubular head of  claim 84 , wherein the port comprises a bowl tubular port defined in the bowl body for providing fluid communication between the flow path and the flow line; and
 the removable connection point is connected with the bowl body at the bowl tubular port.   
     
     
         87 . The well tubular head of  claim 86 , wherein the removable connection point comprises a plurality of bolt holes for connecting with the bowl body. 
     
     
         88 . The well tubular head of  claim 86 , wherein the removable connection point comprises a flanged plug or a flanged ring. 
     
     
         89 . The well tubular head of  claim 84 , further comprising a bowl tubular access port defined in the bowl body for establishing fluid communication between the flow path and coiled tubing. 
     
     
         90 . The well tubular head of  claim 84 , further comprising a casing connector extended gripping surface on the connector body for gripping with power tongs. 
     
     
         91 . The well tubular head of  claim 84 , wherein the port comprises a casing connector port defined in the connector body for providing fluid communication between the flow path and the flow line; and
 the removable connection point is connected with the casing body at the casing connector port.   
     
     
         92 . The well tubular head of  claim 91 , wherein the removable connection point comprises a plurality of bolt holes for connecting with the connector body. 
     
     
         93 . The well tubular head of  claim 91 , wherein the removable connection point comprises a flanged plug or a flanged ring. 
     
     
         94 . The well tubular head of  claim 84 , further comprising a casing connector access port defined in the connector body for establishing fluid communication between the flow path and coiled tubing. 
     
     
         95 . The well tubular head of  claim 84 , further comprising an adaptor tubular connected with the bowl body and with the connector body; and
 wherein the flow path is further defined through the adaptor tubular.   
     
     
         96 . The well tubular head of  claim 95 , further comprising an adaptor extended gripping surface on the adaptor tubular for gripping with power tongs. 
     
     
         97 . The well tubular head of  claim 95 , wherein the port comprises an adaptor port defined in the adaptor tubular for providing fluid communication between the flow path and the flow line; and
 the removable connection point is connected with the adaptor tubular at the adaptor port.   
     
     
         98 . The well tubular head of  claim 97 , wherein the removable connection point comprises a plurality of bolt holes for connecting with the adaptor tubular. 
     
     
         99 . The well tubular head of  claim 97 , wherein the removable connection point comprises a flanged plug or a flanged ring. 
     
     
         100 . The well tubular head of  claim 95 , further comprising an adaptor access port defined in the adaptor tubular for establishing fluid communication between the flow path and coiled tubing. 
     
     
         101 . The well tubular head of  claim 95 , wherein the flow path has a uniform inside diameter through the adaptor tubular and the connector body. 
     
     
         102 . The well tubular head of  claim 84 , wherein the flow path has a uniform inside diameter through the connector body. 
     
     
         103 . The well tubular head of  claim 84 , wherein an inside diameter of the flow path within the connector body is equal to an inside diameter of the casing. 
     
     
         104 . The well tubular head of  claim 84 , wherein the hanger profile is configured to support a tubing hanger and tubing string; and
 the bowl tubular further comprising a rotation drive connected with the bowl body for rotating the tubing string hanging on the hanger profile.   
     
     
         105 . A method of establishing fluid communication with a well including casing, the method comprising:
 providing a modular well tubular head comprising a bowl tubular and a casing connector, the bowl tubular having a hanger profile;   sealingly securing the casing connector to the casing;   reversibly connecting the bowl tubular with the casing connector, providing a flow path from the casing, through the casing connector and through the bowl tubular; and   receiving a string through the casing connector and the bowl tubular, the string having a hanger profiled to match the hanger profile;   wherein the well tubular head comprises a port defined in the well tubular head for providing fluid communication between the flow path and a flow line; and   a removable connection point reversibly connected with the well tubular head at the port, the removable connection point comprising a threaded box end for connecting with the flow line.   
     
     
         106 . The method of  claim 105 , further comprising securing a flow line with the removable connection point to provide fluid communication between the flow path and the flow line. 
     
     
         107 . The method of  claim 105 , further comprising replacing the removable connection point. 
     
     
         108 . The method of  claim 107 , wherein replacing the removable connection point comprises replacing the removable connection point with a replacement removable connection point; and
 the replacement removable connection point has a flow path diameter or other property that differs from a corresponding flow path diameter or other property of the removable connection point.   
     
     
         109 . The method of  claim 105 , wherein the port is defined in the bowl tubular; and
 the method further comprises securing a flow line with the removable connection point at the bowl tubular to provide fluid communication between the flow path and the flow line.   
     
     
         110 . The method of  claim 105 , further comprising replacing the bowl tubular. 
     
     
         111 . The method of  claim 110 , wherein replacing the bowl tubular comprises replacing the bowl tubular with a replacement bowl tubular; and
 the replacement bowl tubular has a flow path diameter, hanger profile or other feature that differs from a corresponding flow path diameter, hanger profile or other property of the bowl tubular.   
     
     
         112 . The method of  claim 111 , wherein replacing the bowl tubular comprises replacing the bowl tubular with a seal plug. 
     
     
         113 . The method of  claim 105 , wherein the port is defined in the casing connector; and
 the method further comprises securing a flow line with the removable connection point at the casing connector to provide fluid communication between the flow path and the flow line.   
     
     
         114 . The method of  claim 105 , further comprising replacing the casing connector. 
     
     
         115 . The method of  claim 114 , wherein replacing the casing connector comprises replacing the casing connector with a replacement casing connector; and
 the replacement casing connector has a weld size, flow path diameter or other feature that differs from a corresponding weld size, flow path diameter or other feature of the casing connector.   
     
     
         116 . The method of  claim 105 , wherein securing the casing connector to the casing comprises connecting the casing connector to the wellhead while the bowl tubular is connected with the casing connector. 
     
     
         117 . The method of  claim 105 , wherein securing the casing connector to the casing comprises connecting the casing connector to the wellhead while the casing connector is disconnected from the bowl tubular. 
     
     
         118 . The method of  claim 105 , wherein the well tubular head further comprises a first access port defined in the well tubular head; and
 the method further comprises running a first coiled tubing string through the first access port for establishing fluid communication between the well and the first coiled tubing string.   
     
     
         119 . The method of  claim 118  wherein the first access port comprises a bowl tubular access port defined in the bowl tubular; and
 running the first coiled tubing string through the first access port comprises running the first coiled tubing string through the bowl tubular access port. 
 
     
     
         120 . The method of  claim 119 , wherein the string comprises a tubing string; and
 running the first coiled tubing string through the bowl tubular access port comprises running the first coiled tubing string into the tubing string.   
     
     
         121 . The method of  claim 119 , wherein the string comprises a tubing string; and
 running the first coiled tubing string through the bowl tubular access port comprises running the first coiled tubing string into an annulus between the tubing string and the casing.   
     
     
         122 . The method of  claim 119 , wherein the string comprises a tubing string;
 the well tubular head further comprises a second access port defined in the well tubular head; and   the method further comprises running a second coiled tubing string through the second access port and into an annulus between the tubing string and the casing for establishing fluid communication between the well and the second coiled tubing string.   
     
     
         123 . The method of  claim 122  wherein the second access port comprises a bowl tubular access port defined in the bowl tubular. 
     
     
         124 . The method of  claim 122 , wherein the second access port comprises a casing connector access port defined in the casing connector. 
     
     
         125 . The method of  claim 118 , wherein the first access port comprises a casing connector access port defined in the casing connector; and
 running the first coiled tubing string through the first access port comprises running the first coiled tubing string through the casing connector access port and into an annulus between the string and the casing.   
     
     
         126 . The method of  claim 105 , wherein the string comprises a tubing string; and
 the bowl tubular comprises a rotation drive for rotating the tubing string.   
     
     
         127 . The method of  claim 126 , further comprising replacing the bowl tubular with a bowl tubular lacking a rotation drive. 
     
     
         128 . The method of  claim 126 , further comprising replacing the rotation drive. 
     
     
         129 . The method of  claim 105 , further comprising connecting an adaptor tubular with the bowl tubular and with the casing connector. 
     
     
         130 . The method of  claim 129 , wherein the port is defined in the adaptor tubular; and
 the method further comprises securing a flow line with the removable connection point at the adaptor tubular to provide fluid communication between the flow path and the flow line.   
     
     
         131 . The method of  claim 129 , wherein the adaptor tubular further comprises an adaptor tubular access port defined in the adaptor tubular for establishing fluid communication between the well and a coiled tubing string; and
 the method further comprises running a coiled tubing string through the adaptor tubular port for establishing fluid communication between the well and the coiled tubing string.   
     
     
         132 . The method of  claim 129 , wherein the flow path has a uniform inside diameter through the adaptor tubular and the casing connector. 
     
     
         133 . The method of  claim 105 , wherein the flow path has a uniform inside diameter through the casing connector. 
     
     
         134 . The method of  claim 105 , wherein the inside diameter of the casing connector has an inside diameter equal to an inside diameter of the casing.