US 5,176,216 A · Bypass seating nipple

Abstract

A downhole or subterranean tool for use with a subsurface strata producing both hydrocarbon gas and water in which the gas and water are separated downhole by gravity and the gas is produced to the surface through one channel, and the water is disposed into a lower subterranean disposal zone. A production tubing is suspended within a casing which lines a well bore drilled through the two zones. A sucker rod actuated reciprocating pump is located in the production tubing. A seating nipple bypass tool with longitudinal holes and side ports in the wall thereof surrounds the pump. This bypass tool is positioned between the producing zone and a lower zone which is to be used as a disposal zone for the salt water. Gas is produced upwardly through the annulus between the tubing and the casing, and the salt water is flowed down through the longitudinal tubes in the sleeve to be disposed in the lower zone.

Claims3

Dependent claims

An apparatus for use in a subterranean well producing fluids such as hydrocarbon gas and water from a producing stratum, said well includes a water disposal stratum separated from said producing stratum which comprises:

a casing lining said well;
a tubing within said casing forming an annulus between it and said casing;
packing means sealing the annulus between said production stratum and said water disposal stratum;
a pump located in and arranged to discharge fluid into said tubing;
means to actuate said pump;
a seating nipple bypass attached to the lower end of said tubing string, said bypass nipple having a) means to close said lower end, b) at least one longitudinal hole in its wall, and c) side port means establishing fluid communication between the annulus and the interior of said nipple bypass, the upper end of said longitudinal passage in fluid communication with the interior of said tubing and the lower end of said longitudinal passage opening into and in fluid communication with the space beneath said packer means whereby water pumped by said pump flows downwardly in said passage into said space and into said disposal stratum.

3 more elements

Dependencies are inferred from the claim text.

Bypass seating nipple

Life of this patent

Bypass seating nipple

Life of this patent

Abstract

Claims3