CN104803539A - Polysulfonate drilling liquid waste treatment method for Yanchang Petroleum sour gas field - Google Patents
Polysulfonate drilling liquid waste treatment method for Yanchang Petroleum sour gas field Download PDFInfo
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- CN104803539A CN104803539A CN201510157696.3A CN201510157696A CN104803539A CN 104803539 A CN104803539 A CN 104803539A CN 201510157696 A CN201510157696 A CN 201510157696A CN 104803539 A CN104803539 A CN 104803539A
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- gas field
- drilling liquid
- waste treatment
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- Treatment Of Sludge (AREA)
Abstract
The invention discloses a polysulfonate drilling liquid waste treatment method for a Yanchang Petroleum sour gas field, and belongs to a polysulfonate drilling liquid waste treatment technology for the Yanchang Petroleum sour gas field. The polysulfonate drilling liquid waste treatment method comprises the following steps: a self-prepared flocculation solidification agent is adopted for gel-breaking sedimentation of a polysulfonate drilling liquid in the sour gas field, so that a complex compound which is insoluble in water can be formed through the complexing action of sulfonated organic substances; then, solidification treatment is conducted on the complex compound, so that pseudo soil with an ettringite structure is formed; after magnetic powder is added, a magnetization and filter plate separation technology is adopted for complete solid-liquid separation. According to the polysulfonate drilling liquid waste treatment method, COD can meet the standard, that is, not only is the environment free of secondary pollution, but also the relevant national standards can be met.
Description
Technical field
The present invention relates to and extend oil acid gas field sulphonated polymer mud method for treating waste liquid, belong to and extend oil acid gas field sulphonated polymer mud liquid waste disposal technique.The present invention comprises following steps: (1), in coagulation isolation technique, adds magnetization and filter plate isolation technique, solid-liquid is effectively separated; (2) adopt mud cake curing technology and liquid oxidation treatment technology, make liquid qualified discharge, mud cake, can secure landfill without exudate simultaneously.The present invention mainly coordinates magnetization and filter plate isolation technique in coagulation isolation technique, two techniques are combined, excellently mutually to help each other, and adopt the mixed type flocculation curing agent non-harmful process oil acid gas field sulphonated polymer mud waste liquid of autogamy, and through these technology be combined with each other obtain drilling fluid be separated after purification of waste water result be: after drilling fluid waste liquid is separated purification of waste water process, water quality reaches 1 grade standard of " integrated wastewater discharge standard " GB8978-1996, achieves that drilling waste water standard-reaching is administered, well site reuse and safety dumping; After the mud cake deep oxidation process that after drilling fluid solid-liquid separation, mud cake oxide treatment result is separated, GB/T5085.3-1996 standard that toxicity meets " Hazardous wastes judging standard-leaching characteristic identification ", meets the I-II class solid waste technical requirements of " storage of general industry solid waste, disposal site Environmental capacity standard " GB18599-2001.Achieve liquid waste residues improvement up to standard and safe disposal.
Background technology
Oil is a national lifeblood, and it is the powerful guarantee of a promotion national economy develop rapidly.Along with the continuous growth of China's economy and market are to the demand of petroleum and natural gas, the prospecting of oil and the exploitation of Sweet natural gas also become the demand in epoch.
Extend gas field exploring on a large scale at present and Productivity Construction.This gas field drilling well well depth, generally at 2500 ~ 3500m, adopts two to drive a well body structure, the exploitation drill bit of Φ 311.1, and the two exploitations drill bit of Φ 215.9 is on average single
Well well drilling detritus amount is about 135m
3, rejected well drilling liquid 150m
3, all deposit in suction pit.Because the discharge opeing of returning of the perforation of completion phase, pressure break, gas testing also enters suction pit and deposits, therefore, suction pit comprises the waste (liquid) of several work interior.Rule of thumb, after individual well completion, the average total flow rate of waste (liquid) is about 1000m
3.
Extending gas field tectonic structure is her slope, Shan of Ordos Basin, and belong to low pressure, low-porosity and low-permeability reservoir, after entering gas-bearing formation section, drilling fluid system transfers poly-sulphur caving-preventing drilling fluid to.Gas extends field waste liquid of drilling principal pollutant: organism, petroleum-type, heavy metal ion.Table 1 prolongs well well drilling waste mud pollutant component to detect analysis (mg/L) result signal table.
For oil acid gas field sulphonated polymer mud method for treating waste liquid, the COD of the process such as traditional concretion method, broken glue-concretion method is all difficult up to standard, and processing cost or meaning produce secondary pollution.Patent 200610022008 has applied for that one is to the non-harmful method of treated drilling fluid waste liquid waste liquid, although solve the problem of some treated drilling fluid waste liquid costs height and environmental pollution, COD is difficult standard up to standard still.This patent is by the process of autogamy flocculation curing agent one, and combines magnetization and filter plate and be separated and reach and realize solid-liquid separation completely, both secondary pollution will be caused to reach relevant national standard to environment.
Table 1 prolongs well well drilling waste mud pollutant component and detects analysis (mg/L) result signal table
Summary of the invention
An object of the present invention is the technology that process extends oil acid gas field sulphonated polymer mud waste liquid.
Technical scheme of the present invention is as follows:
Extend oil acid gas field sulphonated polymer mud method for treating waste liquid, carry out according to following step:
By adding toward extending in oil acid gas field sulphonated polymer mud waste liquid physics, the chemical property that flocculation agent and coagulant aids change waste liquid of drilling, thus destroy the system of creeping into waste liquid.This patent by coagulation isolation technique, reaches brokenly colloid bad system and is convenient to flocculation and solid-liquid separation, then combines magnetization and filter plate and be separated to reach and realize solid-liquid separation completely.
(1) mud cake curing technology: get a certain amount of acid gas field sulphonated polymer mud waste liquid, use the flocculation curing agent once shaped of autogamy, glue sedimentation is carried out brokenly to acid gas field sulphonated polymer mud, sulfonation organism etc. is made to form by complexing action the complex compound being insoluble in water, then be cured process, make it be formed to have the false soil of ettringite structure.
Wherein the flocculation curing agent of autogamy is the mixture of polyacrylamide, polymerization silicon ferric sulfate, lime and cement, and add-on is the 7%-14% of waste liquid volume.
(2) liquid separated in above-mentioned (1) is added magnetic, utilizing magnetization and filter plate isolation technique, is that solid-liquid is separated completely.
Magnetic add-on is 3% of waste liquid volume.
(3) liquid adsorption oxidation: the liquid that separation in above-mentioned (2) obtains is added and meets oxygenant, make liquid reach standard recipe.
Wherein oxygenant is gac and aluminate, and add-on is the 1%-3% of waste liquid volume.
Embodiment:
Implement 1: get and extend oil acid gas field sulphonated polymer mud waste liquid 10m
3the flocculation curing agent mixture 1400kg of the autogamy of 14% of waste liquid volume is added during stirring, wherein the mass ratio of polyacrylamide, polymerization silicon ferric sulfate, cement and lime is 3: 1: 3: 5, Hou Ning 5h, then adds the magnetic of 300kg, magnetization and filter plate isolation technique is utilized to continue process, after continue to add and meet oxygenant 100kg, wherein the mass ratio of gac and aluminate is 1: 1, static process 100h, get process structural analysis test, result is as shown in table 2.
Implement 2: get and extend oil acid gas field sulphonated polymer mud waste liquid 10m
3the flocculation curing agent mixture 700kg of the autogamy of 14% of waste liquid volume is added during stirring, wherein the mass ratio of polyacrylamide, polymerization silicon ferric sulfate, cement and lime is 3: 1: 3: 5, Hou Ning 5h, then adds the magnetic of 300kg, magnetization and filter plate isolation technique is utilized to continue process, after continue to add and meet oxygenant 300kg, wherein the mass ratio of gac and aluminate is 1: 1, static process 100h, get process structural analysis test, result is as shown in table 2.
Table 2 oil acid gas field sulphonated polymer mud liquid waste disposal post analysis result
Claims (4)
1. extend an oil acid gas field sulphonated polymer mud method for treating waste liquid, it is characterized in that being made up of following masses mark:
。
2. one according to claim 1 extends oil acid gas field sulphonated polymer mud method for treating waste liquid, it is characterized in that the proportioning of the blend of flocculation curing agent one, is 3: 1: 3: 5 compositions according to the mass ratio of polyacrylamide, polymerization silicon ferric sulfate, cement and lime.
3. one according to claim 1 extends oil acid gas field sulphonated polymer mud method for treating waste liquid, and it is characterized in that, on the basis of mud cake curing technology, adding magnetic, in conjunction with magnetization and filter plate isolation technique, is that solid-liquid is separated completely.
4. one according to claim 1 extends oil acid gas field sulphonated polymer mud method for treating waste liquid, it is characterized in that oxygenant is the blending oxidizing agent of different ratio in liquid adsorption oxidation, is to form at 1: 1 according to the mass ratio of gac and aluminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157696.3A CN104803539A (en) | 2015-04-03 | 2015-04-03 | Polysulfonate drilling liquid waste treatment method for Yanchang Petroleum sour gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510157696.3A CN104803539A (en) | 2015-04-03 | 2015-04-03 | Polysulfonate drilling liquid waste treatment method for Yanchang Petroleum sour gas field |
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| Publication Number | Publication Date |
|---|---|
| CN104803539A true CN104803539A (en) | 2015-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510157696.3A Pending CN104803539A (en) | 2015-04-03 | 2015-04-03 | Polysulfonate drilling liquid waste treatment method for Yanchang Petroleum sour gas field |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106116103A (en) * | 2016-08-17 | 2016-11-16 | 成都诺德源环保科技有限公司 | A kind of broken glue processing method of polysulfonate slurry |
| CN106242404A (en) * | 2016-08-09 | 2016-12-21 | 中国石油天然气股份有限公司 | Baking-free building block taking polysulfonate drilling cuttings as raw materials and preparation method thereof |
| CN109867341A (en) * | 2019-02-25 | 2019-06-11 | 东莞市盛源石油化工有限公司 | Flocculant is used in a kind of processing of petrochemical wastewater |
-
2015
- 2015-04-03 CN CN201510157696.3A patent/CN104803539A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106242404A (en) * | 2016-08-09 | 2016-12-21 | 中国石油天然气股份有限公司 | Baking-free building block taking polysulfonate drilling cuttings as raw materials and preparation method thereof |
| CN106242404B (en) * | 2016-08-09 | 2018-05-04 | 中国石油天然气股份有限公司 | Baking-free building block taking polysulfonate drilling cuttings as raw materials and preparation method thereof |
| CN106116103A (en) * | 2016-08-17 | 2016-11-16 | 成都诺德源环保科技有限公司 | A kind of broken glue processing method of polysulfonate slurry |
| CN109867341A (en) * | 2019-02-25 | 2019-06-11 | 东莞市盛源石油化工有限公司 | Flocculant is used in a kind of processing of petrochemical wastewater |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150729 |