Blowout preventer with port for entry between casing and tubing string and/or port for entry into tubing string

Abstract

An improved blowout preventer for a well having a casing extending into an underground formation. The blowout preventer has a pair of opposed ram members received within a pair transverse bores within the main housing. The ram members move between an engaged position wherein they engage the pump rod and each other when a pump rod is received through the longitudinal bore in the housing, and a disengaged position where they are retracted from engaging either the pump rod or each other. There are one or more side entry ports within the main housing which permit a fluid or elongate member to be inserted into the casing.

1 . An improved blowout preventer for a well having a casing extending into an underground formation, the improved blowout preventer comprising:
 a main housing having a generally longitudinally oriented bore therethrough for releasably receiving a pump rod therein;   a pair of opposed ram members received within a pair of generally transverse bores within the main housing, the ram members moveable between an engaged position wherein they sealingly engage the pump rod and each other when a pump rod is received through the longitudinal bore, and a disengaged position wherein they are retracted from engaging either the pump rod or each other;   one or more side entry ports within the main housing, the side entry ports permitting a fluid or elongate member to be inserted into the casing; and   an attachment for a tubing string within the main housing.   
     
     
         2 . The improved blowout preventer as claimed in  claim 1 , wherein the attachment for a tubing string is a tubing hanger 
     
     
         3 . The improved blowout preventer as claimed in  claim 1  wherein the casing includes a tubing string supported by the attachment for the tubing string, the fluid or elongate member being inserted into the annulus between the casing and the tubing string. 
     
     
         4 . The improved blowout preventer as claimed in  claim 1  wherein the casing includes a tubing string supported by the attachment for the tubing string, the fluid or elongate member being inserted into the hollow interior of the tubing string. 
     
     
         5 . The improved blowout preventer as claimed in  claim 1 , wherein the casing includes a tubing string extending at least partially therethrough, the blowout preventer including two or more side entry ports within the main housing, the side entry ports permitting fluid or an elongate member to be inserted into the annulus between the casing and the tubing string, and fluid or an elongate member to be inserted into the tubing string. 
     
     
         6 . The improved blowout preventer as claimed in  claim 1  wherein the elongate member is a hose, cable, tube or coiled tubing. 
     
     
         7 . An improved blowout preventer for a well having a casing extending into an underground formation, the improved blowout preventer comprising:
 a main housing having a generally longitudinally oriented bore therethrough for releasably receiving a pump rod therein;   a pair of opposed ram members received within a pair of generally transverse bores within the main housing, the ram members moveable between an engaged position wherein they sealingly engage the pump rod and each other when a pump rod is received through the longitudinal bore, and a disengaged position wherein they are retracted from engaging either the pump rod or each other; and   an attachment for a tubing hanger within the main housing.   
     
     
         8 . The improved blowout preventer as claimed in  claim 7 , further comprising one or more side entry ports within the main housing, the side entry ports permitting a fluid or elongate member to be inserted into the casing. 
     
     
         9 . The improved blowout preventer as claimed in  claim 7 , wherein the attachment for a tubing string is a tubing hanger. 
     
     
         10 . The improved blowout preventer as claimed in  claim 8 , wherein the casing includes a tubing string supported by the attachment for the tubing string, the fluid or elongate member being inserted into the annulus between the casing and the tubing string 
     
     
         11 . The improved blowout preventer as claimed in  claim 7 , wherein the casing includes a tubing string supported by the attachment for the tubing string, the fluid or elongate member being inserted into the hollow interior of the tubing string. 
     
     
         12 . The improved blowout preventer as claimed in  claim 8 , wherein the casing includes a tubing string extending at least partially therethrough, the blowout preventer including two or more side entry ports within the main housing, the side entry ports permitting fluid or an elongate member to be inserted into the annulus between the casing and the tubing string, and fluid or an elongate member to be inserted into the tubing string. 
     
     
         13 . The improved blowout preventer as claimed in  claim 8  wherein the elongate member is a hose, cable, tube or coiled tubing.