Fracture Characterization with NMR Spectroscopic Techniques

✍ Scribed by C.T.Philip Chang; Jinli Qiao; Songhua Chen; A.Ted Watson

• Publisher: Elsevier Science
• Year: 1997
• Tongue: English
• Weight: 212 KB
• Volume: 126
• Category: Article
• ISSN: 1090-7807
• DOI: 10.1006/jmre.1997.1175

✦ Synopsis

Determination of suitable techniques and analyses that can be investigate the feasibility for detecting and characterizing implemented by NMR well logging can greatly improve the charfractures by NMR spectroscopic measurements.

acterization of underground petroleum reservoirs and aquifers. In

Fractures are necessary for economical production of pethis paper, the feasibility for using various NMR methods for troleum from many low permeability reservoirs. The characdetection and characterization of fractures is explored. Analyses terization of fractures and microfractures is highly desirable of experimental data obtained with a variety of samples are presince it can provide valuable information for assessing resersented. It is shown that relaxation contrasts are useful for separatvoir producibility or monitoring fracture treatments or other ing the signal contributions from fluids in the fractures and the methods for enhancing production. It is generally true that porous matrix, and that relaxation weighting can be used in combino conventional tool has the capability for direct observation nation with other NMR techniques for enhancing fracture characof fluids in fractures which can be used to characterize fracterization. ᭧ 1997 Academic Press tures or fissures. We believe NMR techniques have the potential to provide that information. Investigations of the use of NMR imaging techniques for BACKGROUND AND THEORY vate and lead hardware and software development. Here we Lineshape Analysis in Fractured Systems Inhomogeneous line broadening in porous media arises * Now at Syntron, Inc.