Treatment method for recycling oil-field oily sludge
A treatment method and a resource-recycling technology, which are applied in the field of oil-containing sludge recycling in oil fields, can solve the problems that oil and sediment are not easily peeled off, cannot be operated, and the extraction phase and sediment are not easily separated, so as to achieve easy separation, recovery and elimination. Environmental pollution, sufficient extraction effect
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[0029] Example 1
[0030] A treatment method for resource utilization of oily sludge in an oil field. The treatment equipment includes an oil sludge lifting device, a vibrating screen, an extraction tank, a three-phase separation tank, a distillation tower, and an electric flotation device;
[0031] Specific steps:
[0032] 1) The oily sludge lifting device lifts the oily sludge to the vibrating screen, in which the oily sludge is larger than 0.5cm in size;
[0033] 2) Put oily sludge 1 m 3 Placed at 5 m 3 In the extraction tank, pump 1m 3 , After stirring for 90min to dissolve the oil completely, inject 1m 3 After the oil field produced water is stirred and settled for 10 minutes, the extract phase is pumped into the three-phase separation tank to separate the solid phase, water phase, and oil phase; # A mixture of mineral spirits as the main agent, the extraction temperature is 35 ℃ by batch extraction method;
[0034] 3) The oil phase is pumped into the solvent fractionation tower to...
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[0037] Example 2
[0038] A treatment method for resource utilization of oily sludge in an oil field. The treatment equipment includes an oil sludge lifting device, a vibrating screen, an extraction tank, a three-phase separation tank, a distillation tower, and an electric flotation device;
[0039] Specific steps are as follows:
[0040] 1) The oily sludge lifting device lifts the oily sludge to the vibrating screen, in which the oily sludge is larger than 0.5cm in size;
[0041] 2) Put 1m of oily sludge 3 Put 1 # In the extraction tank, pump 2m 3 After stirring to dissolve the oil completely, inject 1 m 3 After the oil field produces water and stirs and settles for 10 minutes, the extract phase is pumped into a three-phase separation tank to separate the solid phase, water phase, and oil phase; the extractant is a mixture of oil field condensate oil and petroleum ether as the main agent. The extraction method, the extraction temperature is 55 ℃.
[0042] 3) The oil phase is pumped in...
Example Embodiment
[0045] Example 3
[0046] A treatment method for resource utilization of oily sludge in an oil field. The treatment equipment includes an oil sludge lifting device, a vibrating screen, an extraction tank, a three-phase separation tank, a distillation tower, and an electric flotation device;
[0047] Specific steps are as follows:
[0048] 1) The oily sludge lifting device lifts the oily sludge to the vibrating screen, in which the oily sludge is larger than 0.5cm in size;
[0049] 2) Put oily sludge 1 m 3 Put it in 1# extraction tank, pump 3m 3 , After stirring for 50min to completely dissolve the oil, inject 3 m 3 After producing water from the oilfield and settling for 60 minutes, the extract phase is pumped into a three-phase separation tank to separate the solid phase, water phase, and oil phase; # A mixture of mineral spirits, aromatic hydrocarbons, and oilfield condensate as the main agent. The extraction process adopts a batch extraction method and the extraction temperature is ...
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