| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_913b9b1f4325067656379f88cd47a0c2
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_35c6a61406902c4c3adc026f9f09c277
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_628bb73538e6f6964695f6e90660e637 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10N2030-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E10-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-127
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M2209-062 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-887
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-882
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-25
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-127
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10M173-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-121
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/E21B43-128
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09K8-588 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/E21B43-00 |
| filingDate |
2008-06-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_428395e1dc0bd9baca78da97752b7c54
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f79736086e4d93dd807b3ef7c24b3806
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_933b5f0aac346f542330cdbbc4fca627 |
| publicationDate |
2010-07-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2010186966-A1 |
| titleOfInvention |
Hydrocarbons |
| abstract |
An oil well includes a wellbore ( 2 ), below ground level ( 4 ), which extends to an oil reservoir ( 6 ). The wellbore includes a casing ( 8 ) within which is arranged a progressing cavity pump (PCP) 10 which includes an inlet ( 12 ) at its lower end and is connected at its upper end to production tube ( 14 ). An annulus ( 16 ) is defined between the pump ( 10 )/tube ( 14 ) and the casing ( 8 ). The annulus communicates with the reservoir and includes a head ( 20 ) of reservoir fluid. A water based formulation which comprises an optionally cross-linked polyvinylalcohol can be poured down the annulus ( 16 ) and pass under gravity to the reservoir ( 6 ), immediately upstream of inlet ( 12 ). The formulation may improve the performance and efficiency of the pump ( 10 ) due to its ability to increase the mobility of the oil in the reservoir immediately upstream of the pump ( 10 ) and/or enhance the ability of the oil to enter the pump inlet. Furthermore, by improving mobility and/or reducing the level of back pressure when the oil enters the pump inlet (or any other constriction) the rate of flow of oil from the reservoir into the wellbore may be increased resulting in an increased rate of oil production. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012222867-A1 |
| priorityDate |
2007-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |