Downhole Hydrogen Sulfide Capture and Measurement

Abstract

Disclosed herein are methods and systems for capture and measurement of a target component. A fluid sampling tool for sampling fluid from a subterranean formation may include a sample chamber having a fluid inlet, wherein the sample chamber is lined with a coating of a material that can reversibly hold a target component.

What is claimed is: 
     
         1 . A system comprising:
 a chamber housing comprising a chamber receptacle for receiving a sample chamber;   a pump in fluid communication with the chamber housing for creating a pressure to drive a target component from the sample chamber to an analytical technique; and   a processor operable to receive inputs from the analytical technique to determine a concentration of the target component.   
     
     
         2 . The system of  claim 1 , wherein the analytical technique is a fluid analyzer. 
     
     
         3 . The system of  claim 2 , wherein the fluid analyzer is selected from a mass spectrometer, a gas chromatograph, an optical sensor, and combinations thereof. 
     
     
         4 . The system of  claim 1 , wherein the analytical technique measures a desorbed component. 
     
     
         5 . The system of  claim 1 , wherein the analytical technique is a gas chromatography, a mass spectrometry, or an optical sensor. 
     
     
         6 . The system of  claim 1 , further comprising a heating element disposed in the chamber housing arranged to heat the sample chamber. 
     
     
         7 . The system of  claim 6 , wherein the heating element provides heat electrically or chemically. 
     
     
         8 . The system of  claim 1 , wherein the pump is a vacuum pump or a low volume pump. 
     
     
         9 . The system of  claim 1 , wherein the sample chamber holds micro-samples. 
     
     
         10 . The system of  claim 1 , wherein the target component is desorbed in the sample chamber. 
     
     
         11 . A method comprising:
 inserting a target component into a sample chamber;   driving the target component from the sample chamber to an analytical technique using a pump; and   identifying a concentration of the target component using a processor; and   extrapolating a quantity of the target component to a reservoir concentration.   
     
     
         12 . The method of  claim 11 , further comprising desorbing the target component in the samples chamber. 
     
     
         13 . The method of  claim 11 , wherein the analytical technique is a fluid analyzer. 
     
     
         14 . The method of  claim 13 , wherein the fluid analyzer is selected from a mass spectrometer, a gas chromatograph, an optical sensor, and combinations thereof. 
     
     
         15 . The method of  claim 11 , wherein the analytical technique measures a desorbed component. 
     
     
         16 . The method of  claim 11 , wherein the analytical technique is a gas chromatography, a mass spectrometry, or an optical sensor. 
     
     
         17 . The method of  claim 11 , further comprising a heating element to heat the sample chamber. 
     
     
         18 . The method of  claim 17 , wherein the heating element provides heat electrically or chemically. 
     
     
         19 . The method of  claim 11 , wherein the pump is a vacuum pump or a low volume pump. 
     
     
         20 . The method of  claim 11 , wherein the sample chamber holds micro-samples.