CN107502314A - It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling - Google Patents
It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling Download PDFInfo
- Publication number
- CN107502314A CN107502314A CN201710570802.XA CN201710570802A CN107502314A CN 107502314 A CN107502314 A CN 107502314A CN 201710570802 A CN201710570802 A CN 201710570802A CN 107502314 A CN107502314 A CN 107502314A
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- China
- Prior art keywords
- salt
- drilling
- cleaning
- completion
- liquid
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/032—Inorganic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/02—Well-drilling compositions
- C09K8/03—Specific additives for general use in well-drilling compositions
- C09K8/035—Organic additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Abstract
Salt is aggravated with cleaning using completion prepared by waste liquid of drilling the invention discloses a kind of, is included by weight percentage：Drilling well abraum salt 91.8% 94.6%；Chelating agent 4% 5.7%；Surfactant 1.2% 1.7%；Anti-caking agent 0.2% 0.8%.The liquid phase low-temperature evaporation crystallization obtained after the separation of the invention using waste water-base drilling liquid is prepared into drilling well abraum salt and prepares completion cleaning exacerbation salt again, solve environmental pollution of the waste water-base drilling liquid to soil, water body, the production cost of oilfield exploitation has been saved, has realized the recycling of waste water-base drilling liquid.The completion of present invention cleaning exacerbation salt abundance, price are low, and it is lower than KCl by determining corrosion rate that completion cleaning aggravates salt.
Description
Technical field
The invention belongs to drilling wastes recycling field, and in particular to a kind of completion prepared using waste liquid of drilling
Salt is aggravated with cleaning.
Background technology
Waste water-base drilling liquid is in addition to containing poisonous and harmful substance and organic matter, also containing numerous sodium, potassium, magnesium, calcium, chlorine
Ion, sulfate radical and heavy metal etc., it is complicated salt-water system.Pollution can be produced to soil, water body, if not at it
Reason, will affect to environment, and therefore, scientifically realize recycling using these waste water-base drilling liquids, be
The problem of urgent need to resolve.
In addition, the inorganic exacerbation salt often used in completion practice at present mainly has KCl, NaCl, CaCl2、CaBr2Or ZnBr2
Deng the corrosivity that salt is aggravated by the use of these inorganic salts as completion cleaning is relatively strong and cost is high.
The content of the invention
The purpose of the present invention is overcome the deficiencies in the prior art, there is provided a kind of completion prepared using waste liquid of drilling is cleaned
Aggravate salt.
Technical scheme is summarized as follows：
It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling, include by weight percentage：Drilling well abraum salt
91.8%-94.6%；Chelating agent 4%-5.7%；Surfactant 1.2%-1.7%；Anti-caking agent 0.2%-0.8%.
Drilling well abraum salt is 93%, chelating agent 5%, surfactant 1.5%；Anti-caking agent is 0.5%.
Drilling well abraum salt is that the liquid phase low-temperature evaporation obtained after waste water-base drilling liquid separation of solid and liquid crystallization is made.
Chelating agent is at least one of ethylenediamine tetra-acetic acid and N-hydroxyethyl-ethylenediamine triacetic acid.
Surfactant is glycine betaine, in polyoxyethylene polyoxypropylene polyethers and aerosol-OT salt at least
It is a kind of.
Anti-caking agent is at least one of potassium ferrocyanide, sodium silicoaluminate, tricalcium phosphate and silica.
Beneficial effects of the present invention are：
The present invention is prepared into drilling well abraum salt again using the liquid phase low-temperature evaporation crystallization obtained after waste water-base drilling liquid separation
Prepare completion and aggravate salt with cleaning, solve environmental pollution of the waste water-base drilling liquid to soil, water body, saved oilfield exploitation
Production cost, realize the recycling of waste water-base drilling liquid.The completion of present invention cleaning exacerbation salt abundance,
Price is low, and it is lower than KCl by determining corrosion rate that completion cleaning aggravates salt.
Embodiment
Below by specific embodiment, the invention will be further described, and following examples are descriptive, is not limit
Qualitatively, it is impossible to which protection scope of the present invention is limited with this.
Reagent used in the present invention, it is the common agents of this area unless otherwise specified.
Embodiment 1
It is a kind of to aggravate salt, including drilling well abraum salt 94.6Kg with cleaning using completion prepared by waste liquid of drilling；Ethylenediamine tetrem
Sour 4Kg；Polyoxyethylene polyoxypropylene polyethers 1.2Kg；Potassium ferrocyanide 0.2Kg.
Drilling well abraum salt is that the liquid phase low-temperature evaporation obtained after waste water-base drilling liquid separation of solid and liquid crystallization is made.
Drilling well abraum salt detection composition is the mixture of sodium chloride, potassium chloride and glaserite, and mass percent is respectively：
52.4%th, 27.8%, 19.8%.
Embodiment 2
It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling, including：Drilling well abraum salt 93Kg；N- ethoxys second two
Amine triacetic acid 5Kg；Aerosol-OT salt 1.5Kg；Tricalcium phosphate 0.5Kg.
Drilling well abraum salt detection composition is the mixture of sodium chloride, potassium chloride and glaserite, and mass percent is respectively：
52.4%th, 27.8%, 19.8%.
Embodiment 3
It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling, including：Drilling well abraum salt 91.8Kg；Chelating agent
5.7Kg, chelating agent are 1 by weight ratio：1 ethylenediamine tetra-acetic acid and N-hydroxyethyl-ethylenediamine triacetic acid composition；Surfactant
1.7Kg, surfactant are 1 by weight ratio：1 glycine betaine and polyoxyethylene polyoxypropylene polyethers composition；Anti-caking agent 0.8Kg,
Anti-caking agent is 1 by weight ratio：1：1 sodium silicoaluminate, tricalcium phosphate and silica composition.
Drilling well abraum salt detection composition is the mixture of sodium chloride, potassium chloride and glaserite, and mass percent is respectively：
52.4%th, 27.8%, 19.8%.
It is with the preparation method of cleaning exacerbation salt using completion prepared by waste liquid of drilling：Take drilling well abraum salt, chelating agent, surface
Activating agent and anti-caking agent, it is well mixed to produce.
Experiment：
Laboratory test results are as follows：
Each embodiment aggravates salt and currently used exacerbation salt potassium chloride using completion prepared by waste liquid of drilling with cleaning
Performance comparison
Pass through density, the surface of aggravating salt and potassium chloride with cleaning using completion prepared by waste liquid of drilling to various concentrations
Tension force and the measurement to lacing film corrosion rate, evaluation aggravate the property of salt and potassium chloride using completion prepared by waste liquid of drilling with cleaning
Energy.
1) using water as solvent, by potassium chloride and the product of embodiment 1,2,3, be configured to respectively mass concentration for 10%,
15%th, 20% aqueous solution is standby.
2) densitometers of DDM 2911 are utilized to determine the potassium chloride of various concentrations and the product of embodiment 1,2,3 at 20 DEG C water-soluble
The density of liquid.
3) potassium chloride solution of 2100N transmissometers measure various concentrations and the product aqueous solution of embodiment 1,2,3 are utilized
Turbidity.
4) using the full-automatic surface tension instruments of QBZY-3 to the potassium chloride solution of various concentrations and the production of embodiment 1,2,3
The surface tension of the product aqueous solution is measured.
5) potassium chloride for determining various concentrations at 50 DEG C using static metal hanging slice test method using corrosion coupon analyzer is water-soluble
The corrosion rate of liquid and the product aqueous solution of embodiment 1,2,3 to lacing film.
Experimental data is shown in Table 1
Completion prepared by waste liquid of drilling cleaning weighted brines solution and potassium chloride solution are utilized under the various concentrations of table 1
Can contrast
Test result indicates that under same concentrations, density, the turbidity of salt are aggravated with cleaning using completion prepared by waste liquid of drilling
It is suitable with potassium chloride, and corrosion rate is lower than potassium chloride；Meet《Completion fluid performance indications part 1：Solid Free water based completion
Liquid》The performance indications requirement of (Q/HS 2014.1-2004), turbidity≤30NTU, rate of corrosion ＜ 0.076mm/a, density 1.01~
1.17g/cm3(potassium chloride salt water density).
Claims (6)
1. a kind of aggravate salt using completion prepared by waste liquid of drilling with cleaning, it is characterized in that including by weight percentage：Drilling well is given up
Salt 91.8%-94.6%；Chelating agent 4%-5.7%；Surfactant 1.2%-1.7%；Anti-caking agent 0.2%-0.8%.
2. it is according to claim 1 a kind of using completion prepared by waste liquid of drilling cleaning exacerbation salt, it is characterized in that described
Drilling well abraum salt is 93%, chelating agent 5%, surfactant 1.5%；Anti-caking agent is 0.5%.
3. it is according to claim 1 or 2 a kind of using completion prepared by waste liquid of drilling cleaning exacerbation salt, it is characterized in that institute
It is that the liquid phase low-temperature evaporation obtained after waste water-base drilling liquid separation of solid and liquid crystallization is made to state drilling well abraum salt.
4. it is according to claim 1 or 2 a kind of using completion prepared by waste liquid of drilling cleaning exacerbation salt, it is characterized in that institute
It is at least one of ethylenediamine tetra-acetic acid and N-hydroxyethyl-ethylenediamine triacetic acid to state chelating agent.
5. it is according to claim 1 or 2 a kind of using completion prepared by waste liquid of drilling cleaning exacerbation salt, it is characterized in that institute
It is glycine betaine to state surfactant, at least one of polyoxyethylene polyoxypropylene polyethers and aerosol-OT salt.
6. it is according to claim 1 or 2 a kind of using completion prepared by waste liquid of drilling cleaning exacerbation salt, it is characterized in that institute
Anti-caking agent is stated as at least one of potassium ferrocyanide, sodium silicoaluminate, tricalcium phosphate and silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570802.XA CN107502314A (en) | 2017-07-13 | 2017-07-13 | It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710570802.XA CN107502314A (en) | 2017-07-13 | 2017-07-13 | It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling |
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| CN107502314A true CN107502314A (en) | 2017-12-22 |
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| CN201710570802.XA Pending CN107502314A (en) | 2017-07-13 | 2017-07-13 | It is a kind of to aggravate salt with cleaning using completion prepared by waste liquid of drilling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500266A (en) * | 2019-01-30 | 2020-08-07 | 中国石油化工股份有限公司 | Completion fluid composition and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370637A (en) * | 2002-04-08 | 2002-09-25 | 黄大军 | Harmless treating and resource utilizing method for waste salt-containing drilling slurry in oil field |
| CN1940009A (en) * | 2005-09-29 | 2007-04-04 | 中国石油天然气股份有限公司 | Heavy cracking-fluid formula |
| CN101153215A (en) * | 2006-09-29 | 2008-04-02 | 中国石油化工股份有限公司 | Weighting agent for oil field drilling fluids and method of producing the same |
| CN105219361A (en) * | 2015-10-20 | 2016-01-06 | 中国石油集团渤海钻探工程有限公司 | Water-soluble high-density weighting material and preparation method thereof |
-
2017
- 2017-07-13 CN CN201710570802.XA patent/CN107502314A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1370637A (en) * | 2002-04-08 | 2002-09-25 | 黄大军 | Harmless treating and resource utilizing method for waste salt-containing drilling slurry in oil field |
| CN1940009A (en) * | 2005-09-29 | 2007-04-04 | 中国石油天然气股份有限公司 | Heavy cracking-fluid formula |
| CN101153215A (en) * | 2006-09-29 | 2008-04-02 | 中国石油化工股份有限公司 | Weighting agent for oil field drilling fluids and method of producing the same |
| CN105219361A (en) * | 2015-10-20 | 2016-01-06 | 中国石油集团渤海钻探工程有限公司 | Water-soluble high-density weighting material and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 韩成利，等: "盐酸溶液中乙二胺四乙酸对黄铜的缓蚀作用及吸附热力学研究", 《高师理科学刊》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111500266A (en) * | 2019-01-30 | 2020-08-07 | 中国石油化工股份有限公司 | Completion fluid composition and application thereof |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20191210 Address after: 100027, No. 6, east side street, Dongcheng District, Beijing Applicant after: CNOOC Energy Development Co., Ltd. Applicant after: COES Limited Address before: 100027, No. 6, east side street, Dongcheng District, Beijing Applicant before: CNOOC Energy Development Co., Ltd. Applicant before: CNOOC ENERGY TECHNOLOGY & SERVICES-SAFETY AND ENVIRONMENTAL PROTECTION CO. |
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