Pneumatic gas booster operating on a remote wellsite

Abstract

A device may include a remote pump jack configured to lift reservoir fluids from underground. A device may include an oil tank connected to the remote pump tank, the oil tank being configured to store the reservoir fluids and allow the reservoir fluids to separate into one or more of oil and a headspace vapor. A device may include a pneumatic gas booster connected to the oil tank, wherein the pneumatic gas booster is configured to draw in the headspace vapor during a vapor recovery operation. A device may include the pneumatic gas booster being connected to a liquid nitrogen tank that provides a motive gas to the pneumatic gas booster such that as the pneumatic gas booster draws in the headspace vapor, the motive gas furnishes a stable drive pressure during the vapor recovery operation.

What is claimed is: 
     
         1 . A remote wellsite system comprising:
 a remote pump jack configured to lift reservoir fluids from underground;   an oil tank connected to the remote pump tank, the oil tank being configured to store the reservoir fluids and allow the reservoir fluids to separate into one or more of oil and a headspace vapor;   a pneumatic gas booster connected to the oil tank, wherein the pneumatic gas booster is configured to draw in the headspace vapor during a vapor recovery operation; and   the pneumatic gas booster being connected to a liquid nitrogen tank that provides a motive gas to the pneumatic gas booster such that as the pneumatic gas booster draws in the headspace vapor, the motive gas furnishes a stable drive pressure during the vapor recovery operation.   
     
     
         2 . The remote wellsite system of  claim 1 , wherein the motive gas is a nitrogen gas. 
     
     
         3 . The remote wellsite system of  claim 2 , wherein the nitrogen gas is stored as a liquid in the liquid nitrogen tank. 
     
     
         4 . The remote wellsite system of  claim 3 , wherein the liquid nitrogen tank includes a vaporizer configured to draw the liquid nitrogen out of the liquid nitrogen tank as the nitrogen gas, such that the nitrogen gas can be provided to the pneumatic gas booster. 
     
     
         5 . The remote wellsite system of  claim 1 , wherein the pneumatic gas booster includes a reciprocating piston system, where the reciprocating piston system creates a vacuum within the pneumatic gas booster during a receding movement to draw in the headspace vapor into the vacuum. 
     
     
         6 . The remote wellsite system of  claim 5 , wherein the reciprocating piston system is further configured to compress the headspace vapor after the headspace vapor is drawn into the vacuum. 
     
     
         7 . The remote wellsite system of  claim 6 , wherein the compressed headspace vapor can be transferred to one or more of a recovery pipeline or a storage tank. 
     
     
         8 . The remote wellsite system of  claim 1 , wherein the headspace vapor is one or more of methane, ethane, propone, or isobutane. 
     
     
         9 . The remote wellsite system of  claim 1 , wherein by using the pneumatic gas booster with the motive gas, an amount of the motive gas consumed is reduced to only the motive gas needed to drive the pneumatic gas booster. 
     
     
         10 . The remote wellsite of  claim 1 , wherein the liquid nitrogen tank includes a sensor that can provide an alert when a status of the liquid nitrogen tank changes. 
     
     
         11 . The remote wellsite of  claim 10 , wherein the status can be one or more of an empty tank and a decreased flow rate. 
     
     
         12 . The remote wellsite of  claim 1 , wherein the pneumatic gas booster is a single stage, single acting pneumatic gas booster. 
     
     
         13 . The remote wellsite of  claim 1 , wherein the pneumatic gas booster is configured to provide a recovered gas to an end-device for an operation by the end-device on the remote wellsite. 
     
     
         14 . The remote wellsite of  claim 1 , wherein the pneumatic gas booster is configured to provide a recovered gas to one or more of a recovery pipeline or a storage tank. 
     
     
         15 . A pneumatic gas booster system positioned in a remote wellsite operation, the pneumatic gas booster system comprising:
 a nitrogen piston configured to receives a drive gas from a liquid nitrogen tank, the drive gas being a nitrogen gas admitted through a nitrogen drive inlet port;   a connecting rod actuated by the nitrogen piston;   a gas piston that is actuated by the connecting rod to cause a receding movement;   a compression chamber connected to the gas piston, wherein a vacuum is formed in a compression chamber during the receding movement by the gas piston as the nitrogen piston is operated, wherein as the vacuum is formed a working gas is drawing in to the compression chamber and the working gas is compressed; and   a booster outlet is connected to the compression chamber, wherein the compressed working gas exits out of the booster outlet and is provided to an end-device to assist in an operation of a remote wellsite.   
     
     
         16 . The pneumatic gas booster system of  claim 15 , wherein the working gas is received from an oil tank. 
     
     
         17 . The pneumatic gas booster system of  claim 16 , wherein the working gas is methane. 
     
     
         18 . The pneumatic gas booster system of  claim 15 , wherein the end-device is a device that previously operated using a propone storage tank. 
     
     
         19 . The pneumatic gas booster system of  claim 15 , wherein liquid nitrogen tank includes a vaporizer to provide the drive gas. 
     
     
         20 . The pneumatic gas booster system of  claim 15 , wherein the end-device is a storage tank and the compressed working gas is a methane gas that has been captured during the operation of the remote wellsite to reduce a methane emission at the remote wellsite.