CN100582031C - Process processing and utilizing for oil field oil-containing sewage sludge - Google Patents
Process processing and utilizing for oil field oil-containing sewage sludge Download PDFInfo
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- CN100582031C CN100582031C CN200610099066A CN200610099066A CN100582031C CN 100582031 C CN100582031 C CN 100582031C CN 200610099066 A CN200610099066 A CN 200610099066A CN 200610099066 A CN200610099066 A CN 200610099066A CN 100582031 C CN100582031 C CN 100582031C
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Abstract
The invention relates to the process and utilization method of the oily sludge, in particular to the process and utilization of the oily sludge produced by the oilfield extraction sludge, the sewage disposal plant and the storage terminal. The scheme is that the oily sludge enters a swirler oil eliminator and is added with oil removal agents, releases the oil and enters a dirty oil tank; the deoiled sludge enters a sludge concentrating tank; sludge dehydrating agents are added in the concentrating tank based on the proportion and enter horizontal centrifuge via a secondary lift pump to dehydrate; the dehydrated water enters the coming liquid pipeline of the sewage disposal system; the dehydrated sludge is mixed with slack coal based on the proportion; the binder is added to form the coal which enters a shape coal machine to make the shape coal. The oil removal agents effectively recycle the sludge oil; the binder enhances the anti-extrusion strength and reduces the energy consumption; the shape coal has the advantages of high heat value, low burning point and low production cost, which improves the utilization of the residual value and reduces the utilization of the clay. Meanwhile, the ash and slag of the shape coal reaches the discharge standard of the sludge for agricultural use and avoids the environmental protection.
Description
Technical field
The present invention relates to a kind of processing of oily sludge and utilize method, particularly the processing and the utilization of the oily sludge of oil production sludge of oilfield, sewage work and tank station generation.
Background technology
At present aspect the processing of oil field sludge and utilizing, oil play, institute have done a lot of trials both at home and abroad, can be summed up as following several:
Solidify and make building materials, method is with after the oily sludge oil removing dehydration, adding certain solidifying agent, filler and cement in proportion is cured, studies show that, sludge curing is made building materials the pre-treatment of mud is required height, after the pre-treatment mud oil-containing and moisture all must fall very low, operation processing costs height, floor space is big, may cause secondary pollution after the curing.
Sintering make material of construction be with oil field sludge after the desalinization of soil by flooding or leaching, oil removing and processed, mix the back sintering with clay by a certain percentage and make material of construction, Wuhan University of Technology has carried out studies show that of this respect: at the mud proportion less than 30% o'clock, made sample can satisfy the building material quality requirement substantially, but this method pre-treatment complexity, the processing costs height, the investment cost height.
Mud catalytic cracking treatment technology belongs to thermal chemical reaction, and promptly under conditions such as high temperature, high pressure, catalyzer, the polymer substance in the mud becomes low molecule oily matter by adding series reaction such as water decomposition, condensation, dehydrogenation, cyclisation.Whether mud oiling treatment process technology is feasible, and whether balance is relevant with the thermal value of the proterties of oil, oil and whole technology energy.If remove whole energy expenditures, also have the Fuel Oil Remaining to use it for anything else, this technology is exactly the production capacity type so.Therefore this method is only applicable to the processing of extra-high-speed, high oily sludge, and complex treatment process.
Utilize the mud profile control, mechanism is to utilize solid particulate to stop up the rock core macropore.Mud granule is deposited in injection water and washes away the macropore of formation, and the osmotic resistance of water is increased, and forces and injects water change seepage direction, thereby start low-permeability oil deposit, has improved the swept volume of injection water.Simultaneously, the physics ponding of mud emulsion, sump oil adsorption and the Jamin effect etc. on rock all produces profile control effect.But there is following problem in this method: solid grain size narrow range in (1) mud, only be applicable to the middle and high infiltration oil reservoir that the shutoff pore throat is less, and can't use macropore or extra-high-speed infiltration oil reservoir; (2) contain former Chuck Steak in the mud, plugging strength is not enough, and the shutoff validity period is short; (3) mud is injected into water and dashes and to release or decomposed by rock absorption back, causes the shutoff success ratio to descend, in addition in polluting, low permeability layer.
Utilize oily sludge in rubber item, to be used as weighting agent, lime carbonate is the weighting agent of rubber item consumption maximum, and oil field sludge has the advantages that to be rich in lime carbonate, and other mineralising matter of part also can be used as weighting agent, therefore can be by being used for the weighting agent of rubber item after oil field sludge is handled, studies show that oil field sludge is used for the weighting agent of rubber item, has reinforcement filling properties preferably, and in sizing material, has good dispersing property, but this method sludge treatment technique complexity, to remove the gangue residue through the wet type screening, wash out salt, a series of complicated technologies such as electromagnetism blanking iron, so this method sludge treatment expense height, investment cost is big, is not suitable for oil field sludge and handles.
Chinese patent 02133117.0, a kind of treatment process of oily sludge is disclosed, this method is with behind the oily sludge mechanical dehydration, mix the preheating dehydration with extraction solvent oil then, liquid phase is carried out coking, and solid phase acts as a fuel, carry out oily water separation after extraction heat-dehydration back vapor condensation dehydration, this method need be used relevant coker and device, and process temperature control is complicated, does not also disclose solid phase simultaneously and how to be processed into fuel.
Summary of the invention
The objective of the invention is at above-mentioned the deficiencies in the prior art and defective, a kind of effective processing oily sludge is provided, and simple and direct, the economic practical approach that mud is made full use of.
After deliberation; with the oily sludge is that raw material is made moulded coal; under the condition of early stage oily sludge effectively being handled; utilize the moulded coal of oily sludge manufacturing can increase calorific value in right amount; reduce the production cost of moulded coal; having reduced the use to clay, protected the soil property resource, is the novel method of oil field oil-containing sludge treatment and recycling.
The present invention adopts following technical scheme:
(1) slurry tank or settling tank deposition are discharged oily sludge, enter the swirler oil eliminator,, add the KYCY degreaser of 50mg/L in swirler oil eliminator ingress through lift pump; (2) deviate from oil and enter slop oil tank, the mud after the oil removing enters the mud concentration tank; (3) in the mud concentration tank, add sludge dehydrating agent in proportion; (4) entering horizontal centrifuge by the two-stage hoisting pump dewaters; That (5) deviates from that water enters Sewage treatment systems comes the liquid pipeline, and the sludge moisture content after the dehydration is about 75-80%, and the mud after the dehydration and fine coal mix by 1: 3.5～4 part by weight, add weight percent 5% binding agent simultaneously, form coal charge; (6) behind the coal charge stirring and evenly mixing, enter molding coal machine, make moulded coal, curing is dried.
Wherein, the KYCY degreaser that in step (1), uses, its composition is as follows by weight ratio:
The KYCY degreaser by
AE type nonionogenic tenside 60～70%;
SP type nonionogenic tenside 15～25%;
Polyacrylamide (positively charged ion) 5%;
Dodecyl dimethyl Bian ammonium chloride 5～10%, being mixed forms.
The general formula of above-mentioned AE type nonionogenic tenside is:
A represents the block polymerization ether of propylene oxide oxyethylene in the formula, and its structural formula is:
Polymerization degree L=4～7, m=10～100, n=10～50;
The general formula of above-mentioned SP type nonionogenic tenside is:
Polymerization degree m1=10～40 in the formula, n1=200～400, m2=5～20;
Above-mentioned cationic polyacrylamide structural formula:
N is 10～120,000.
Above-mentioned dodecyl dimethyl Bian ammonium chloride structural formula:
The dewatering agent ratio of using in step (3) is the solid phase dewatering agent of aluminum chloride hydrocarbon complex 200mg/L and polyacrylamide 2mg/L.
Binding agent in step (5) is by aluminum oxide powder, 0.2%; Silicon-dioxide, 0.01%; Magnesium oxide 6%; Distiller liquor 93%, mixing preparation forms.
Distiller liquor is mixed and made into by sodium hydroxide solution, slaking plant amylum and tripoly phosphate sodium STPP.
Adopted the efficient compound degreaser in the method for the present invention, made that oil-containing has obtained rational recovery in the mud, also made the problem of sludge dewatering difficulty obtain certain solution; The binding agent that in the processing and fabricating of moulded coal, adds, solved with behind the oily sludge replacement clay, the problem of moulded coal crushing resistance variation, compare with reuse technology with the oily sludge processing, the present invention has reduced energy consumption, compare with the moulded coal of making of wilkinite, have calorific value height, burning-point is low and production cost is low advantage, improved the utilization of residual value, greatly reduced use to clay, avoided environment damage, simultaneous type coal ash slag reaches agricultural mud discharging standard, has avoided environmental pollution.
Description of drawings
The processing of Fig. 1, oil field oil-containing mud and utilize the method flow synoptic diagram
Among Fig. 1,1. sludge sump, 2.KYCY degreaser, 3. swirler, 4. slop oil tank, 5. sludge dehydrating agent, 6. concentration tank, 7. whizzer, 8. water, 9. fine coal, 10. binding agent, 11. mixes stirred pots, 12. molding coal machines, 13. moulded coals.
Embodiment
Get the sewage settling bowl bottom mud at two stations, Dagang Oilfield east,, enter the swirler oil eliminator, add the KYCY degreaser of 50mg/L in the import of swirler oil eliminator through lift pump with mud; Deviate from oil and enter slop oil tank, the mud after the oil removing enters the mud concentration tank; In the mud concentration tank, add aluminum chloride hydrocarbon complex 200mg/L and polyacrylamide 2mg/L in proportion; Entering horizontal centrifuge by the two-stage hoisting pump dewaters; Deviate from water and enter Sewage treatment systems and come the liquid pipeline, the sludge moisture content after the dehydration is 78%, and the mud after the dehydration and fine coal mix mixing stirred pot by 1: 4 part by weight, add weight percent 5% binding agent simultaneously, form coal charge; Behind the coal charge stirring and evenly mixing, enter molding coal machine, make moulded coal; Curing is dried.
Wherein KYCY degreaser weight proportion is: AE type nonionogenic tenside 70%, SP type nonionogenic tenside 15%, polyacrylamide 5%, dodecyl dimethyl Bian ammonium chloride 10%, make 7.5 tons of moulded coals as stated above, and the well head process furnace of specially adopting the four-hole individual well in work area in the southern company of Dagang Oilfield in by the end of April, 2005 in first arrival in November, 2004 has carried out rig-site utilization.Application result shows that this moulded coal is compared with the moulded coal that former employing clay is made, and has the advantages that dust is few, calorific value is high, burning is thorough, flue gas has no irritating odor.Through the lime-ash detected result being shown this lime-ash reaches the regulation of agricultural mud discharging standard.
Claims (2)
1. the processing of an oily sludge and utilize method, may further comprise the steps: (1) is with oily sludge, enter the swirler oil eliminator through lift pump, in swirler oil eliminator ingress, add the degreaser of 50mg/L, (2) deviate from oil and enter slop oil tank, the mud after the oil removing enters the mud concentration tank, and (3) add sludge dehydrating agent in proportion in the mud concentration tank; (4) entering whizzer by the two-stage hoisting pump dewaters, that (5) deviates from that water enters Sewage treatment systems comes the liquid pipeline, mud after the dehydration and fine coal mix by 1: 3.5～4 part by weight, add weight percent 5% binding agent simultaneously, form coal charge, behind (6) coal charge stirring and evenly mixing, enter molding coal machine, make moulded coal, curing is dried;
The degreaser that uses in the step (1) is the KYCY degreaser, and its composition per-cent by weight forms through being mixed, and proportioning is as follows:
AE type nonionogenic tenside 60～70%;
SP type nonionogenic tenside 15～25%;
Polyacrylamide (positively charged ion) 5%;
Dodecyl dimethyl Bian ammonium chloride 5～10%,
The general formula of above-mentioned AE type nonionogenic tenside is:
A represents the block polymerization ether of propylene oxide oxyethylene in the formula, and its structural formula is:
Polymerization degree L=4～7, m=10～100, n=10～50,
The general formula of above-mentioned SP type nonionogenic tenside is:
Polymerization degree m1=10～40 in the formula, n1=200～400, m2=5～20,
Above-mentioned cationic polyacrylamide structural formula:
N is 10～120,000.
Above-mentioned dodecyl dimethyl Bian ammonium chloride structural formula:
The dewatering agent ratio of using in step (3) is the solid phase dewatering agent of aluminum chloride hydrocarbon complex 200mg/L and polyacrylamide 2mg/L;
Binding agent in step (5) is by aluminum oxide powder, 0.2%; Silicon-dioxide, 0.01%; Magnesium oxide 6%; Distiller liquor 93%, mixing preparation forms, and distiller liquor is mixed and made into by sodium hydroxide solution, slaking plant amylum and tripoly phosphate sodium STPP.
2. the processing of oily sludge as claimed in claim 1 and utilize method is characterized in that the sludge moisture content after the dehydration is at 75-80% in the step (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610099066A CN100582031C (en) | 2006-07-18 | 2006-07-18 | Process processing and utilizing for oil field oil-containing sewage sludge |
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| CN200610099066A CN100582031C (en) | 2006-07-18 | 2006-07-18 | Process processing and utilizing for oil field oil-containing sewage sludge |
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| CN101108765A CN101108765A (en) | 2008-01-23 |
| CN100582031C true CN100582031C (en) | 2010-01-20 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101823829B (en) * | 2010-05-07 | 2011-06-15 | 江苏思诺环保机械科技有限公司 | Extrusion sludge dewatering system |
| CN102180575B (en) * | 2011-03-31 | 2012-07-11 | 濮阳市天地人环保工程技术有限公司 | Processing method for centralized treatment and reclamation of oil-containing sludge |
| CN102267797B (en) * | 2011-07-25 | 2013-03-27 | 中国船舶重工集团公司第七○二研究所 | Integral process for ecologically desilting and curing sludge |
| CN102643699A (en) * | 2012-05-09 | 2012-08-22 | 黑龙江科技学院 | Application of coked sludge serving as formed coal adhesive |
| CN106565512B (en) * | 2016-11-09 | 2018-07-20 | 烟台史密得机电设备制造有限公司 | A kind of degreaser and preparation method thereof for ternary composite flooding water extraction processing |
| CN109574429A (en) * | 2019-02-14 | 2019-04-05 | 北京净界新宇环保科技有限公司 | A kind of method of heavy metal in solidifying oil sludge |
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2006
- 2006-07-18 CN CN200610099066A patent/CN100582031C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 含油污水中固体废物固化与燃煤混烧的可行性. 刘安平.油气田环境保护，第15卷第1期. 2005 |
| 含油污水中固体废物固化与燃煤混烧的可行性. 刘安平.油气田环境保护，第15卷第1期. 2005 * |
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Effective date of registration: 20170309 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: China National Petroleum Corporation Patentee after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Address before: 100724 Beijing, Xicheng District, shop No. 6 Kang Street, No. six Patentee before: China National Petroleum Corporation Patentee before: China Petroleum and Natural Gas Pipeline Bureau |