| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_02f51cb8926abc0ddf450ab7093815ae
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9a456f61c4a3b57ab683dcd77b2123af
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_3301c1d8714c2597791149af5ee5015a
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_be2258efa1dd0212d91e87b0487f4ede
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_6dc1a7b155e189685316f0c59553feb8
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7a76fb07c14a79cc554841928fb2989d |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S507-922 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-703 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K8-70 |
| filingDate |
2004-10-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_73a2d587f54c9e5799f9024e844d7ced
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_facb276a3e4e78af442d6a1907d132e9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_807c08c3ce422f3ece6d99aecbfa4f51
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_de6e731dbab5607bc1f8435a9d0c87e0 |
| publicationDate |
2005-04-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2005035941-A2 |
| titleOfInvention |
Methods of fracturing a subterranean formation using a ph dependent foamed fracturing fluid |
| abstract |
Methods of fi-acturing a subterranean formation include providing a ftacturing fluid having a first pH. The fracturing fluid may be made by combining a gelling agent, a surfactant, and a proppant. The surfactant is capable of facilitating foaming of the fracturing fluid at the first pH and defoarning of the fi-acturing fluid when its pH is changed to a second pH. The methods of fracturing the subterranean formation further include foaming the fracturing fluid having the first pH and subsequently purnping it to the subterranean formation to fracture the formation. The pH of the fracturing fluid changes to a second pH, for example via in situ contact with an acidic material, causing the level of foam in the fracturing fluid to be reduced. As a result of the reduction of the foam, the fracturing fluid deposits the proppant into the fractures formed in the subterranean formation. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110452678-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110452678-A |
| priorityDate |
2003-10-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |