Through Tubing gas lift mandrel

Abstract

This mandrel places injection gas at the optimum production depth. It has been proven successful and could increase production in America and the world by bringing back into production wells that are not economical any other way. One well at a time, or entire fields can be produced with a single compressor. There is no need for additional packers or valves. Stripper wells account for 40% of total domestic production. There are 1000s of wells not being produced. Huge production OPEC type wells could be produced with this system better, faster, and less expensive than any other system. Using air, or gas in a closed loop this system outperforms every system like it or any other system. The key is to optimize compression with depth beneath the fluid level and reservoir abilities. Waiting to try this and prove it since graduate school seems extreme, but several devices are not allowed or kept from use in the oilfield for whatever reason. The key is to help the small guys compete, and this innovation is ready.

I claim: 
     
         1 . A gas lift oil production enhancement system mandrel, comprising:
 A trunk portion which is sized to uniquely and efficiently deliver enough gas through the production tubing, at sufficient pressure, to a sufficient depth from the surface to produce oil/water/gas.   A jet portion which receives the high pressure gas from the trunk and directs its delivery into the oil at sufficient pressure, velocity and volume to transport the oil/water/gas to the separator or the storage tank.   
     
     
         2 . Device according to  claim 1 , wherein the gas lift mandrel with trunk and jets in specific configuration and shape to position the mandrel in a certain place for instance centered or to one side which ensures precise and even delivery of gas into the produced fluid for optimum production. 
     
     
         3 . The device according to  claim 1 , wherein if tubing is present the mandrel is installed completely through the tubing and does not affect the annular space between the tubing and casing or open hole in any way. 
     
     
         4 . The device according to  claim 1 , wherein the through tubing gas lift mandrel is placed within an additional outer tubing section which acts as a smaller diameter tubing to assist production in wells with large production tubing diameters but very low flow characteristics, or where there is no tubing at all. When the depth of the fluid is extremely far from the surface this is necessary. 
     
     
         5 . The device according to  claim 1 , wherein the jets have preset orifices and not pressure relief valves. 
     
     
         6 . The device according to  claim 1 , where the depth can be changed by adding or subtracting trunk segments as production continues to drop. 
     
     
         7 . The device according to  claim 1 , where the pressure exerted on the mandrel from the surface can be increased or decreased with the usage of various compression sources or pressure/flow control valves in the injection system upstream of the well. 
     
     
         8 . The device according to  claim 1 , where the flow rate of the high pressure gas can be controlled from the surface compression or from pressure/flow control valves in the injection system upstream of the well. 
     
     
         9 . The device according to  claim 1 , where the number of jets can be increased or decreased. 
     
     
         10 . The device according to  claim 1 , where the size of the orifice of the jets can be changed. 
     
     
         11 . The device according to  claim 1 , where the configuration of the jets can be set to point straight up to simulate a controlled blowout to maximize flow up the original tubing or into the replacement mandrel/tubing system. 
     
     
         12 . The device according to  claim 1 , where the reservoir production limits and content can be determined by changing any or all of the design variations simply by pulling the mandrel out of the well, and not the tubing. 
     
     
         13 . The device according to  claim 1 , wherein any or all of these variations can be changed quickly by retrieving the tubing and mandrels onto a spool. 
     
     
         14 . The device according to  claim 1 , wherein the device can be used to test the well upon permit approval and actually produce the well in a matter of hours, with portable equipment. 
     
     
         15 . The device according to  claim 1 , wherein the jets can be placed at intervals up the mandrel to the surface to boost production with highest pressure valves at the top and the lowest pressure at the bottom to unload the well manually by pressure regulation. The bottom most valve will be working at continuous operating pressure and production will be optimized. 
     
     
         16 . The device according to  claim 1 , this system can retrofit the well using the packing box used to seal the polished rod of the pump jack as a seal, in much shorter time and much less the cost of any other current art. 
     
     
         17 . The device according to  claim 1 , wherein the mandrel depends only on the researched and tested physics and nature of the injected gas to assist in producing the reservoir fluids. There are no standing valves to load the well and no packers required. 
     
     
         18 . The device according to  claim 1 , wherein the mandrel can be used to transfer fluid from one source to one or more destinations over land as long as the elevation change is positive. 
     
     
         19 . The device according to  claim 1 , wherein the mandrel can be used on multiple wells with a single compressor by adding control valves at the surface injection point, which regulate injection pressure and volume. 
     
     
         20 . The device according to  claim 1 , wherein the mandrel can be enhanced to unload a well by using preset pressure relief valves that are decreasing in pressure as the depth increases.