초록 ▼

An apparatus and method for inserting flow control means into a well casing is disclosed. A receptacle having portions adapted to receive check valve means is mounted within said well casing and said well casing is inserted into a well. Check valve means may be pumped down into engagement with said

An apparatus and method for inserting flow control means into a well casing is disclosed. A receptacle having portions adapted to receive check valve means is mounted within said well casing and said well casing is inserted into a well. Check valve means may be pumped down into engagement with said receptacle to regulate the flow of fluid through the well casing. Alternatively, choke valve means may be pumped down into engagement with said receptacle instead of check valve means. The choke valve means may be constructed having portions adapted to receive check valve means so that check valve means may be pumped down into engagement with said choke valve means to regulate the flow of fluid through the well casing.

대표청구항 ▼

A method for inserting flow control means into a well casing during cementing operations comprising the steps of: releasably securing a check valve into a check valve housing, said check valve housing having portions forming a first passageway through said check valve housing into which said check v

A method for inserting flow control means into a well casing during cementing operations comprising the steps of: releasably securing a check valve into a check valve housing, said check valve housing having portions forming a first passageway through said check valve housing into which said check valve may be releasably secured; mounting a receptacle within a receptacle housing, said receptacle having portions forming a second passageway through said receptacle, said receptacle adapted to receive said check valve housing within said second passageway; mounting said receptacle housing containing said receptacle within said well casing; inserting said check valve housing containing said check valve into said receptacle; and placing said well casing containing said receptacle housing, said receptacle, said check valve housing and said check valve into a well. An apparatus for inserting flow control means into a well casing in a well during cementing operations comprising: check valve means adapted to be positioned within said casing to permit fluid flow down the well and to block fluid flow up the well; choke valve means adapted to be positioned within said casing below said check valve means to restrict fluid flow; and receptacle means mounted within said well casing, said receptacle means adapted to receive said choke valve means and said check valve means.