CHEMICAL OXIDATION OR ELECTROMAGNETIC TREATMENT IN SAGD OPERATIONS
First Claim
1. A process for treating produced water for re-use comprising a step of degrading organics in the produced water by way of chemical oxidation or electromagnetic treatment.
2 Assignments
0 Petitions
Accused Products
Abstract
A system for treating produced water, for example from a SAGD bitumen production operation, has a treatment unit using chemical oxidation (CO) or electromagnetic treatment (ET) to destroy or degrade organics in the produced water. The treatment module may use CO or ET in combination with biological treatment or sorption processes or both. When the treatment module is used upstream of a steam generator, it reduces fouling in the steam generator and in any blowdown water treatment device. A brine concentrator or a crystallizer may be used to treat the blowdown water. The treatment module may be used in combination with a nanofiltration (NF) or reverse osmosis (RO) membrane filter. Optionally, the produced water may be treated with an ET process such as microwaves directly upstream of a steam generator or upstream of a concentrator or crystallizer in a blowdown water stream.
27 Citations
20 Claims
- 1. A process for treating produced water for re-use comprising a step of degrading organics in the produced water by way of chemical oxidation or electromagnetic treatment.
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17. A system for treating produced water from a steam assisted gravity drainage production well to produce steam for injection into the ground above the production well comprising:
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a) a once through steam generator; b) a crystallizer connected to receive blowdown water from the once through steam generator; and
,c) a chemical oxidation or electromagnetic treatment module located upstream of the once through steam generator or so as to intercept the blowdown water upstream of the crystallizer. - View Dependent Claims (18)
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19. A system for treating produced water from a steam assisted gravity drainage production well to produce steam for injection into the ground above the production well comprising:
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a) a once through steam generator; b) a chemical oxidation or electromagnetic treatment module located upstream of the once through steam generator or so as to intercept the blowdown water upstream of the crystallizer; and
,c) a nanofiltration or reverse osmosis membrane filter downstream of the chemical oxidation or electromagnetic treatment module. - View Dependent Claims (20)
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Specification