CN101845294A - Method for preparing carbonate polluting control agent using industrial waste acid water - Google Patents
Method for preparing carbonate polluting control agent using industrial waste acid water Download PDFInfo
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- CN101845294A CN101845294A CN201010175566A CN201010175566A CN101845294A CN 101845294 A CN101845294 A CN 101845294A CN 201010175566 A CN201010175566 A CN 201010175566A CN 201010175566 A CN201010175566 A CN 201010175566A CN 101845294 A CN101845294 A CN 101845294A
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- carbonate
- industrial waste
- control agent
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Abstract
The invention relates to a method for preparing a carbonate polluting control agent using industrial waste acid water. The method for preparing the carbonate polluting control agent using the industrial waste acid water comprises the following steps: (1) adding the industrial waste acid water and calcium oxide to a reaction kettle until naturalization reaction is completed under stirring; (2) sending the mixed liquid in the reaction kettle to a pressure filter through a pump to separate a solid phase from a liquid phase; (3) after drying the solid phase product, mixing the calcium oxide and the solid product based on a weight proportion of 1:3-9:3, placing the obtained mixture in a pulverizer and then crushing into powder; and (4) mixing the obtained powder and a dispersing agent based on the weight proportion of 9:1 to obtain the carbonate polluting control agent. The carbonate polluting control agent of the invention can achieve the effects of eliminating carbonate, lowering the content of carbonate ions, reducing yield value and fluid loss of drilling fluid, removing bubble in slurry and the like, and has better buffer action on pH value of a drilling fluid system.
Description
Technical field
The present invention relates to a kind of industrial waste acid water that utilizes and prepare drilling fluid pollutes control agent with carbonate method.
Background technology
In the process of prospect drilling,, all can increase the content of carbanion and bicarbonate ion in the drilling fluid when bore meeting carbonated, carbonate strata and strong basicity drilling fluid when absorbing Carbon Dioxide in Air and using yellow soda ash (sodium bicarbonate) excessive.When carbanion and bicarbonate ion are present in the drilling fluid system in large quantities, will produce serious consequence, as: destroy the rheological property of drilling fluid, make the thixotroping ability variation of drilling fluid; Drilling fluid density result's verity is measured in influence, influences the safety of drilling engineering; Influence the working efficiency of slush pump, influence the performance of water horse power, the build-up of pressure excitement; Influence mud cake quality, cause thick, empty, the nothing of mud cake, reduce formation stability; Influence the use of sand separator, silt remover etc.Therefore, how to control that the content of carbanion and bicarbonate ion is a problem that is worth research in the drilling fluid.
Usually, when the drilling fluid operation field runs into carbanion or carbon dioxide pollution, how heavy except that carbanion with lime method.This method effect when carbanion content is low is fine, but when if pH value own is higher in the higher or drilling fluid of carbonate content in the drilling fluid, this method can make property of drilling fluid become poorer on the contrary.Because lime method is handled the OH that the result of carbonate pollution can make drilling fluid
-Value significantly rises, and after the pH value was greater than 11.7, lime was not easy dissolving, and the change of sedimentary dissolution of calcium carbonate degree is big, and dissolved calcium ion and carbanion can cause new pollution to property of drilling fluid, and property of drilling fluid will extremely worsen this moment.But less than 11.3 o'clock, bicarbonate radical then can not thoroughly be removed totally as if the pH value.Deal with very thorny when therefore, the scene runs into this type of problem.
Now, some chemical enterprises all have industrial waste acid water to be not used, and also will handle it again, have increased the treatment facility and the personnel of industrial waste acid water.
Summary of the invention
The present invention is directed to the problems referred to above, propose a kind of new solution.The present invention directly utilizes industrial waste acid water production drilling fluid to pollute control agent with carbonate, has realized waste water reuse.The technology of the present invention can be under pH value condition with higher, still can control with treated drilling fluid in carbonate pollute; The pH value less than 11.3 situation under, adopt technical scheme of the present invention can thoroughly remove bicarbonate ion in the drilling fluid.
Technical scheme provided by the invention is:
Utilize industrial waste acid water to prepare the method that carbonate pollutes control agent,
(1) in reactor, adds industrial waste acid water and unslaked lime, under agitation finish to neutralization reaction;
(2) the interior mixed solution of reactor is by being pumped in the pressure filter solid phase and liquid phase separation;
(3) behind the solid phase product drying, unslaked lime mixes with the part by weight of solid phase product by 1: 3～9: 3, places the crusher for crushing powdered;
(4) powder that obtains and dispersion agent are mixed according to 9: 1 part by weight be carbonate and pollute control agent.
Contain organic acid and mineral acid in the industrial waste acid water, the pH value of industrial waste acid water is less than 1.
Carbonate pollutes control agent and is applied to the pollution of the carbonate in the treated drilling fluid in the drilling well industry.
The present invention utilizes industrial waste acid water to make carbonate pollution control agent, and cost is low, has reduced sewage discharge, and is free from environmental pollution.
Carbonate of the present invention pollute control agent can reach remove bicarbonate radical, reduce carbanion content, reduce drilling fluid yield value and fluid loss, effect such as bubble in the elimination mud, pH value to drilling fluid system also has shock absorption preferably, is applicable to the wellbore construction of water-base drilling fluid on this class stratum.
Embodiment
Utilize industrial waste acid water to prepare the method that carbonate pollutes control agent,
(1) in reactor, adds industrial waste acid water and unslaked lime, under agitation finish to neutralization reaction;
(2) the interior mixed solution of reactor is by being pumped in the pressure filter solid phase and liquid phase separation;
(3) behind the solid phase product drying, unslaked lime mixes with the part by weight of solid phase product by 1: 3～9: 3, places the crusher for crushing powdered;
(4) powder that obtains and dispersion agent are mixed according to 9: 1 part by weight be carbonate and pollute control agent.
Contain organic acid and mineral acid in the industrial waste acid water, the pH value of industrial waste acid water is less than 1.
Carbonate pollutes control agent and is applied to the pollution of the carbonate in the treated drilling fluid in the drilling well industry.
Claims (3)
1. utilize industrial waste acid water to prepare the method that carbonate pollutes control agent, it is characterized in that,
(1) in reactor, adds industrial waste acid water and unslaked lime, under agitation finish to neutralization reaction;
(2) the interior mixed solution of reactor is by being pumped in the pressure filter solid phase and liquid phase separation;
(3) behind the solid phase product drying, unslaked lime mixes with the part by weight of solid phase product by 1: 3～9: 3, places the crusher for crushing powdered;
(4) powder that obtains and dispersion agent are mixed according to 9: 1 part by weight be carbonate and pollute control agent.
2. prepare the method that carbonate pollutes control agent according to the described industrial waste acid water that utilizes of claim 1, it is characterized in that contain organic acid and mineral acid in the industrial waste acid water, the pH value of industrial waste acid water is less than 1.
3. the carbonate pollution control agent that makes according to the described method of utilizing industrial waste acid water to prepare carbonate pollution control agent of claim 1 is applied to the carbonate pollution in the treated drilling fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175566 CN101845294B (en) | 2010-05-19 | 2010-05-19 | Method for preparing carbonate polluting control agent using industrial waste acid water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010175566 CN101845294B (en) | 2010-05-19 | 2010-05-19 | Method for preparing carbonate polluting control agent using industrial waste acid water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101845294A true CN101845294A (en) | 2010-09-29 |
| CN101845294B CN101845294B (en) | 2013-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010175566 Expired - Fee Related CN101845294B (en) | 2010-05-19 | 2010-05-19 | Method for preparing carbonate polluting control agent using industrial waste acid water |
Country Status (1)
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| CN (1) | CN101845294B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101254937A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for producing liquid calcium chloride by using industry waste acid |
| US7432230B2 (en) * | 2001-10-31 | 2008-10-07 | Halliburton Energy Service, Inc. | Metallic soaps of modified fatty acids and rosin acids and methods of making and using same |
-
2010
- 2010-05-19 CN CN 201010175566 patent/CN101845294B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7432230B2 (en) * | 2001-10-31 | 2008-10-07 | Halliburton Energy Service, Inc. | Metallic soaps of modified fatty acids and rosin acids and methods of making and using same |
| CN101254937A (en) * | 2008-03-24 | 2008-09-03 | 莱芜钢铁股份有限公司 | Method for producing liquid calcium chloride by using industry waste acid |
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| CN101845294B (en) | 2013-09-18 |
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