http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2512841-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8cac4ca8509c3ca45aca9a0274628c6e |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K2208-18 |
| classificationCPCInventive | 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/C09K- http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-36 |
| filingDate | 2004-08-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a1faeebfda835390cf6ed01d40430d5f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4ced524c7961f004dd9069f2a4c8c7de http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff9a3e3a9f043bf0786cfd4d5fa9ea8c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_dfdb72690823de9f69337ff8a4417eba |
| publicationDate | 2005-03-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2512841-A1 |
| titleOfInvention | Flat rheology drilling fluid |
| abstract | A drilling fluid an oleaginous fluid that forms the continuous phase; a non-oleaginous fluid, which is the discontinuous phase; a primary emulsifier in sufficient concentration to stabilize the invert emulsion; and a rheology modifier, which serves to moderate the rheology change across a temperature range of 40 to 150 C. The rheology modifier may be a dimer poly-carboxylic C12 to C22 fatty acid, trimer poly-carboxylic C12 to C22 fatty acid, tetramer poly-carboxylic C12 to C22 fatty acid, mixtures of these acids, or a polyamide wherein the polyamide is the condensation reaction product of a C12-C22 fatty acid and a polyamine selected from the group consisting of diethylenetriamine, triethylenetetramine; and pentaethylenetetramine. The drilling fluid preferably includes a weighting agent or bridging agent which may be selected from galena, hematite, magnetite, iron oxides, illmenite, barite, siderite, celestite, dolomite, calcite as well as combinations and mixtures of these and similar compounds. Optionally organophillic clay, fluid loss agents, alkali reserve materials, and other conventional invert emulsion drilling fluid components may be added to the drilling fluid. |
| priorityDate | 2003-08-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 29.