In-situ detection and analysis of methane in coal bed methane formations with spectrometers
US8760657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V8/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a system for measuring a chemical in a subsurface formation comprising housing component traversable within the well, a guide extending down the well from a fixed location being operatively connected to the housing, a radiation source, and an optical pathway between a sample and detector wherein the detector is located at the ground surface. Also disclosed is a method for reducing long distance transmission of radiation comprising placing a radiation source in a housing, placing a housing down in a well bore, lowering a spectrometer down the well bore, and controlling movement of a spectrometer by a guide wire controller at the ground surface. Further disclosed is a method of radiating a sample comprising, transmitting the radiation through at least one optical pathway, interacting a sample with the radiation, producing characteristic radiation from the sample, and transmitting by an optical pathway to a detector located in a spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.