Predicate |
Object |
assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_dfee4d7ae50dfd9fcf3a6fc25019b94a |
classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07K14-4741 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B21-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-38 |
classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B21-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-40 |
filingDate |
2008-04-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75e1db9516143ea5d9735b9a45bf402b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_cc7392d5db1beef87ca49f6d7bbe6c04 |
publicationDate |
2008-10-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber |
CA-2629177-A1 |
titleOfInvention |
Foamed fluid additive for underbalance drilling |
abstract |
A method of drilling or gas-lifting is disclosed where the methods including the use of a foaming agent and a gas, where the foaming agent is a keratin and the hydrostatic pressure of the fluid in the well is for a portion of the drilling or gas-lift operation less than an hyrdrostatic pressure of the formation being drilled or under production. |
isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9631133-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2010054476-A1 |
priorityDate |
2007-04-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type |
http://data.epo.org/linked-data/def/patent/Publication |