Patent ID: 7021373

Claim:
A downhole hydraulic ram pump for lifting formation fluids out of a wellbore being an open hole, comprising: a main body having an axial bore; a formation fluid inlet connected to said axial bore at one end of said main body; means forming a formation fluid outlet for conducting fluid flow from the other end of said main body; a normally open valve means axially aligned with said main body located within the fluid passageway for permitting fluid flow conducted out of said formation fluid outlet end, and into a formation external of the pump; a chamber means having a normally closed inlet means axially aligned with said main body; means for receiving, landing, sealing, and securing said chamber means within said main body axial bore; an annulus formed between said chamber means and said main body, means forming a flow passageway such that formation fluid can flow into said formation fluid inlet end of said main body, into said formed annulus, to said normally open valve means, whereas the formation fluid flow is permitted from said normally open valve means, into said formation fluid outlet, such that formation fluid flow passes from the said formation fluid outlet as discharge fluid; said chamber means, wherein said normally closed inlet means is comprised of at least one normally closed valve means axially aligned with the said chamber means being located in the fluid inlet passageway for permitting fluid flow to said chamber means; said chamber means, wherein said normally closed inlet is extended axially, aligned with said chamber means, having at least one side port for formation fluid flow to said normally closed valve means, forming a landing profile with restrictive shoulders and seal system to interact with said main body; said chamber means having a normally closed inlet at one end, means forming a connection adapted for chamber tubing on said chamber means other end, said chamber tubing being added to said chamber means for desired chamber volume, having a tubing capping means affixed to the open chamber tubing end; said chamber means, further including said chamber tubing and said affixed capping means, wherein an intrusive tubing means parallel or axially aligned with the said chamber means, through which at least one fluid outlet end adapted for tubing connection is provided, said intrusive tubing means penetrating and sealing against said affixed capping means; said intrusive tubing means providing a fluid passageway such that formation fluid can flow from said chamber means near said normally closed inlet means end, through said affixed capping means, to said adapted outlet end; said chamber means, wherein an annular chamber is formed between said chamber means and said intrusive tubing means, provides an annular collecting chamber for a gaseous substance; a conduit means having at least one formation fluid inlet means, providing a fluid passageway for conducting said formation fluid downward is connected to said formation fluid inlet.