http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2416112-C
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_137ad4f406af5b0333fbe8694f2ed4a9 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B49-008 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B49-003 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B49-00 |
| filingDate | 2001-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2009-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a8f59476d69c74d96950093e59944b00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_80c0a648bbc0e796f366f7cc151fc2c7 |
| publicationDate | 2009-12-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2416112-C |
| titleOfInvention | A method of determining properties relating to an underbalanced well |
| abstract | There is a method of determining properties relating to an underbalanced wel l, comprising inducing pressure variations in a fluid within a well, measuring the pressure variations, and calculating pore pressure of at least one fluid - producing formation. The pressure variations cause a change in flow rate fro m formations along a length of borehole, and as such a change in the productio n flow rate of the well. The variations in pressure are used to calculate the pore pressure. Variations in annular bottomhole pressure are induced by altering the flow rate of drilling fluid, or the density of drilling fluid o r by acoustic pulsing downhole. The pore pressure, permeability and porosity o f the formations is derived as a real time profile along the length of the borehole. |
| priorityDate | 2000-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID451417045 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID3083360 |
Total number of triples: 16.