| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9e183b88ffc72e64d1b805a946af58de |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-502
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-32
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-36 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-12
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-32 |
| filingDate |
2004-09-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_74ddc6739c6ad862c17252095535d475
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ca43f40d1be526bf23c271e2ae75c7f3
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_15fc9a9205f65419bfd055fa18d00b5a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e1df180435d32a99e4bcb9e16227b3a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_64d79267b1aefc2147005d96f8e2d272 |
| publicationDate |
2006-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-1670871-A1 |
| titleOfInvention |
Fluid loss control and sealing agent for drilling depleted sand formations |
| abstract |
An oil-based drilling fluid having a polymer latex capable of providing a deformable latex film on at least a portion of a subterranean sand formation has been discovered to inhibit or control fluid loss and act as a sealing agent when used to drill in sand formations for hydrocarbon recovery operations. Typically, the polymer latex is an aqueous suspension of particles formed by emulsion polymerization that is in turn emulsified into a hydrocarbon base fluid. The polymer particles of suitable size precipitate onto the pores of a subterranean sand formation to at least partial seal the formation with a deformable polymer film. |
| priorityDate |
2003-09-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |