| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_07fc1afa14aab4e37dc5427e7ce1f89c |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-80 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-267
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-80 |
| filingDate |
1989-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a6d7f4e91e3cb2017483148d5038efa8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_12e8af33c658034ca84001073b31dbc6 |
| publicationDate |
1990-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0353740-A1 |
| titleOfInvention |
Low density proppant and methods for making and using same |
| abstract |
A lightweight oil and gas well proppant made by simultaneously mixing and compacting a mixture of kaolin clay which has been calcined at a temperature low enough to prevent the formation of mullite and crystobalites to an LOI of 12 or less when tested at 1400° C, and amorphous to microcrystalline silica both of which have been milled to an average agglomerated particle size of 7 µm or less to form green pellets, and then drying, screening and sintering the pellets to form proppant pellets having a specific gravity of 2.7 or less, the proppant having a conductivity of at least [2.9610 x 10⁻⁸ cm] x 30.48 cm (3,000 millidarci-feet) as measured by the Stim-Lab Technique after 50 hours at 552 bar (8,000 psi) and 135°C (275°F.) in the presence of deoxygenated aqueous 2% solution of KCl using sandstone shims. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10344204-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/ES-2186492-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10982520-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10012064-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7845409-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385257-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10385258-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-115678533-A |
| priorityDate |
1988-08-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |