http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-2013359857-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c85d78c6a4459b5dbbc49c82a4c5c107 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-467 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B33-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B28-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-383 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C04B24-22 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-487 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B28-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C04B24-38 |
| filingDate | 2013-12-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6d2916e552b977d3ab4c4c57795c540 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_47a29b2938c0caa0561aba4424297ea6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0ca9e4af546eeb48d6b34008309ce62f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_873ca5647bab7d32d753cce84654d95c http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_60b78a659dc24f475c217568819c9adf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c548ea64c9b1d4dec490a6b81a249249 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5d4fde6893d982d06dd1cad38f43921b |
| publicationDate | 2015-07-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | AU-2013359857-A1 |
| titleOfInvention | Cementing composition comprising nonionic hydrophobically-modified cellulose ethers and its use |
| abstract | Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) a hydrophobically modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the hydrophobically modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, and a weight- average molecular weight of from 500,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumped upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets. |
| priorityDate | 2012-12-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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