| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3d28d01b883dbe52d61e04f769dcbebd |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-16 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-16 |
| filingDate |
1991-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1993-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3d84e576f1e65d61334dc63a7e48222 |
| publicationDate |
1993-05-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-5209297-A |
| titleOfInvention |
Method of drilling through a high temperature formation |
| abstract |
An improved drilling fluid for use in a drilling operation. A drilling rig has a drill string for forming a borehole while drilling fluid flows down the drill string to a drill bit and back up the borehole annulus to a mud pit. The improved drilling fluid of this method enables the borehole to be extended through a geothermal formation having a temperature up to 500 degrees F. The drilling fluid has a highly viscous thixotropic fluid added thereto during a drilling operation in order to achieve a mixture having at least 1/2% polymerized alkali metal silicate that is formed by combining an aqueous acid solution with an aqueous alkali metal silicate solution, whereby a polymerized alkali metal silicate gel is produced followed by shearing of the gel to impart thixotropic properties thereto. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9726157-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5355954-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2540304-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2008190614-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6642183-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7740068-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11149519-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5361842-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2023114197-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5358044-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5361841-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10208561-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11732929-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015153419-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014190226-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5398758-A |
| priorityDate |
1991-09-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |