CN115893903A - Oil well cement retarder and preparation method and application thereof - Google Patents
Oil well cement retarder and preparation method and application thereof Download PDFInfo
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- CN115893903A CN115893903A CN202110931149.1A CN202110931149A CN115893903A CN 115893903 A CN115893903 A CN 115893903A CN 202110931149 A CN202110931149 A CN 202110931149A CN 115893903 A CN115893903 A CN 115893903A
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- 239000004568 cement Substances 0.000 title claims abstract description 60
- 239000003129 oil well Substances 0.000 title claims abstract description 50
- 238000002360 preparation method Methods 0.000 title abstract description 20
- 239000012744 reinforcing agent Substances 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 30
- 239000003381 stabilizer Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000011975 tartaric acid Substances 0.000 claims abstract description 24
- 235000002906 tartaric acid Nutrition 0.000 claims abstract description 24
- QGJDXUIYIUGQGO-UHFFFAOYSA-N 1-[2-[(2-methylpropan-2-yl)oxycarbonylamino]propanoyl]pyrrolidine-2-carboxylic acid Chemical compound CC(C)(C)OC(=O)NC(C)C(=O)N1CCCC1C(O)=O QGJDXUIYIUGQGO-UHFFFAOYSA-N 0.000 claims abstract description 22
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000008367 deionised water Substances 0.000 claims abstract description 22
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 22
- 239000000176 sodium gluconate Substances 0.000 claims abstract description 22
- 229940005574 sodium gluconate Drugs 0.000 claims abstract description 22
- 235000012207 sodium gluconate Nutrition 0.000 claims abstract description 22
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001353 Dextrin Polymers 0.000 claims description 3
- 239000004375 Dextrin Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 235000019425 dextrin Nutrition 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 239000003623 enhancer Substances 0.000 claims description 2
- 239000010410 layer Substances 0.000 claims description 2
- WSHYKIAQCMIPTB-UHFFFAOYSA-M potassium;2-oxo-3-(3-oxo-1-phenylbutyl)chromen-4-olate Chemical compound [K+].[O-]C=1C2=CC=CC=C2OC(=O)C=1C(CC(=O)C)C1=CC=CC=C1 WSHYKIAQCMIPTB-UHFFFAOYSA-M 0.000 claims description 2
- 239000004575 stone Substances 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 12
- 230000008719 thickening Effects 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 3
- 230000000979 retarding effect Effects 0.000 description 3
- 229920001732 Lignosulfonate Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910021389 graphene Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 150000007522 mineralic acids Chemical class 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- IRLPACMLTUPBCL-KQYNXXCUSA-N 5'-adenylyl sulfate Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](COP(O)(=O)OS(O)(=O)=O)[C@@H](O)[C@H]1O IRLPACMLTUPBCL-KQYNXXCUSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 238000012356 Product development Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000002671 adjuvant Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000002843 carboxylic acid group Chemical group 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000000524 functional group Chemical group 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011020 pilot scale process Methods 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses an oil well cement retarder and a preparation method and application thereof. The preparation raw materials of the oil well cement retarder comprise: reinforcing agent, stabilizing agent, tartaric acid, sodium glucoheptonate, sodium gluconate and deionized water. The applicable temperature range of the oil well cement retarder is 100-180 ℃, the retarder can meet the strength requirement of large temperature difference of 80 ℃, and the problems that the high-temperature retarder has poor temperature resistance, no linear relation exists in the addition amount, the strength of the cement stone at the top is slowly developed, and the industrialization is difficult can be solved.
Description
Technical Field
The invention relates to an oil well cement retarder and a preparation method and application thereof.
Background
In order to meet the requirements of well cementation construction and control the setting time of cement slurry, a certain proportion of retarder needs to be added into the cement slurry to meet the requirements of different bottom hole temperatures, the retarder is generally divided into low-temperature retarder, medium-temperature retarder and high-temperature retarder, and the current high-temperature retarder is mainly classified as follows: (1) lignosulfonate; (2) cellulose and its derivatives; (3) organic small molecules containing special functional groups and structures; (4) an inorganic acid, an inorganic salt or an oxide; (5) The synthetic high molecular polymer uses more inorganic acid, polysaccharide and synthetic high molecular polymer, and the materials are cheap and easy to obtain, have better retarding effect and are popular with various large oil fields and enterprise units, but have the defects of variable use effect difference due to the non-uniformity of the structure, strong cement selectivity, sensitive addition, no high temperature resistance, slow development of top strength with large temperature difference of a long sealing and fixing section and the like.
Foreign research on the mechanism of the high-temperature retarder and product development mainly focus on meeting the use requirements of the retarder under high-temperature and high-pressure conditions, such as: tiemeyer C. and the like research the retarding action mechanism of the high-temperature retarder synthesized by AMPS/IA at the high temperature of 200 ℃ and the interaction of the retarder and a water loss reducing polymer. Reddy et al developed sulfonic acid and carboxylic acid group containing copolymers as high temperature retarders that were resistant to temperatures as high as 300 ℃. SCR-500 pushed by Halliburton product catalog continuously updated TM And SCR-500L TM The synthetic retarder provides more retardation than other retarders under the condition of large temperature difference of long interval sections of the high-temperature wellThe coagulant is more stable and consistent in thickening time; provides faster development strength than lignosulfonates, and better batch reproducibility; the wide-spectrum oil well cement retarder SCR-3 for the medium and petrochemical engineering institute has the following applicable temperatures: 100-170 ℃ and a large temperature difference adaptation range of 70 ℃.
In conclusion, the retarder at foreign countries has strong high-energy resistance, can meet the requirement of development of large temperature difference strength, but has high price and is difficult to popularize and apply in domestic markets. The domestic retarder is suitable for the strength requirement of temperature difference of 60 ℃ due to the generally applicable temperature range of 100-160 ℃, and cannot meet the requirement of temperature resistance of 180 ℃ and the temperature difference range of 80 ℃ along with the increase of the exploration and development difficulty.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a novel oil well cement retarder which has the applicable temperature range of 100-180 ℃, can meet the strength requirement of large temperature difference of 80 ℃, can solve the problems of poor temperature resistance, no linear relation of addition, slow development of top set cement strength and difficult pilot-scale industrialization of the high-temperature retarder and has low price.
The invention provides an oil well cement retarder in a first aspect, which comprises the following preparation raw materials: reinforcing agent, stabilizing agent, tartaric acid, sodium glucoheptonate, sodium gluconate and deionized water.
According to some embodiments of the retarder of the present invention, preferably, the amounts of each of the substances are: 0.01 to 2 portions of reinforcing agent, 10 to 30 portions of stabilizing agent, 5 to 20 portions of tartaric acid, 2 to 15 portions of glucoheptonic acid, 0.5 to 10 portions of sodium gluconate and 100 portions of deionized water.
According to some embodiments of the retarder of the present invention, preferably, the retarder is used in an amount of: 0.1 to 1 weight portion of reinforcing agent, 15 to 20 weight portions of stabilizing agent, 10 to 15 weight portions of tartaric acid, 5 to 10 weight portions of sodium glucoheptonate, 1 to 5 weight portions of sodium gluconate and 100 weight portions of deionized water.
According to some embodiments of the set retarder of the present invention, preferably, the weight ratio of the reinforcing agent to the stabilizing agent is 0.005 to 0.015.
According to some embodiments of the set retarder of the present invention, preferably, the stabilizer is yellow dextrin.
According to some embodiments of the retarder of the present invention, preferably, the reinforcing agent is nano-graphene, preferably 1 to 3 layers, and more preferably, the single layer rate is greater than or equal to 80%.
According to some embodiments of the set retarder of the present invention, preferably, the carbon content of the reinforcing agent is > 98%.
According to some embodiments of the retarder of the present invention, preferably, the D50 plate diameter of the reinforcing agent is 7 to 12 μm.
In the present invention, each substance can be obtained by commercial or autonomous preparation.
The second aspect of the invention provides a preparation method of the oil well cement retarder, which comprises the following steps:
step I, sequentially adding a stabilizer, tartaric acid, sodium glucoheptonate and sodium gluconate into deionized water for reaction to obtain a first solution;
and II, mixing the first solution with an enhancer, and then dispersing.
According to some embodiments of the method of the present invention, preferably, the reaction conditions include: the temperature is 40-60 ℃, and the time is 0.5-2 h.
According to some embodiments of the preparation method of the present invention, preferably, the mixing conditions include: the time is 0.5 to 2 hours.
According to some embodiments of the production method of the present invention, preferably, the conditions of the dispersion include: the temperature is 40-60 ℃, and the time is 30-120 min.
In a third aspect, the invention provides the use of the oil well cement retarder in the field of oil fields. Especially in the field of oilfield chemical adjuvant chemistry.
The invention has the beneficial effects that:
(1) The retarder has good temperature resistance, can meet the requirement of 100-180 ℃, has good linear relationship of addition amount of the retarder, is well mixed with cement paste, and has strength capable of meeting the requirement of large temperature difference of 80 ℃.
(2) The retarder provided by the invention is simple in preparation process and suitable for industrial production.
Detailed Description
In order that the present invention may be more readily understood, the following detailed description of the invention is given by way of example only, and is not intended to limit the scope of the invention.
In the following examples of the process of the present invention,
the reinforcing agent is nano graphene purchased from Hongdahu evolutionary technology Limited company in Shenzhen, the single layer rate is 80%, the carbon content is more than 98%, and the D50 sheet diameter is 7-12 μm.
The stabilizer was yellow dextrin, commercially available.
[ example 1 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 18 parts of stabilizer, 14.4 parts of tartaric acid, 7.2 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) Preparing the oil well cement retarder by adopting the raw materials in parts by weight:
step I, sequentially adding a stabilizer, tartaric acid, sodium glucoheptonate and sodium gluconate into deionized water, heating to 50 ℃, and reacting for 1 hour to obtain a first solution;
and II, mixing and stirring the obtained first solution and a reinforcing agent for 1h, and then dispersing for 45min at 50 ℃ by adopting a cold water bath to obtain the oil well cement retarder.
[ example 2 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 18 parts of stabilizer, 10 parts of tartaric acid, 7.2 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ example 3 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 18 parts of stabilizer, 14.4 parts of tartaric acid, 5 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ example 4 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 1 part of reinforcing agent, 20 parts of stabilizing agent, 15 parts of tartaric acid, 10 parts of sodium glucoheptonate and 5 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ example 5 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.1 part of reinforcing agent, 15 parts of stabilizer, 10 parts of tartaric acid, 5 parts of sodium glucoheptonate and 1 part of sodium gluconate.
(2) The oil well cement retarder is prepared by adopting the raw materials in the step (1) and according to the preparation method in the example 1.
[ example 6 ]
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.01 part of reinforcing agent, 10 parts of stabilizer, 5 parts of tartaric acid, 2 parts of sodium glucoheptonate and 0.5 part of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ example 7 ] A method for producing a polycarbonate
(1) The oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 2 parts of reinforcing agent, 30 parts of stabilizing agent, 20 parts of tartaric acid, 15 parts of sodium glucoheptonate and 10 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ example 8 ]
(1) The starting material of example 1 was followed.
(2) (2) preparing the oil well cement retarder by adopting the raw materials in parts by weight:
step I, sequentially adding a stabilizer, tartaric acid, sodium glucoheptonate and sodium gluconate into deionized water, heating to 40 ℃, and reacting for 2 hours to obtain a first solution;
and step II, mixing and stirring the obtained first solution and the reinforcing agent for 2 hours, and then dispersing for 60 minutes at 40 ℃ by adopting a cold water bath to obtain the oil well cement retarder.
Comparative example 1
(1) Raw materials:
the oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0 part of reinforcing agent, 18 parts of stabilizing agent, 14.4 parts of tartaric acid, 7.2 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
Comparative example 2
(1) Raw materials:
the oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 0 part of stabilizing agent, 14.4 parts of tartaric acid, 7.2 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ COMPARATIVE EXAMPLE 3 ]
(1) Raw materials:
the oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 18 parts of stabilizer, 0 part of tartaric acid, 7.2 parts of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
Comparative example 4
(1) Raw materials:
the oil well cement retarder is prepared from the following raw materials: 100 parts of deionized water, 0.25 part of reinforcing agent, 18 parts of stabilizer, 14.4 parts of tartaric acid, 0 part of sodium glucoheptonate and 3.6 parts of sodium gluconate.
(2) The oil well cement retarder was prepared by using the raw material of (1) and following the preparation method of example 1.
[ test example I ]
Oil well cement slurry systems are prepared by respectively adopting the oil well cement retarders of examples 1-8 and comparative examples 1-4, the thickening time and the compressive strength of 48h are tested by adopting the method of GB _ T19139-2012, the experimental conditions are 160 ℃ multiplied by 80min multiplied by 80MPa, and the results are shown in Table 1.
Specifically, the oil well cement paste system is: 100 parts of G-grade cement, 35 parts of silica powder, 1 part of fluid loss additive (5 parts), a retarder (the parts by weight are shown in a table 1) and 53 parts of tap water. Wherein the fluid loss agent is purchased from the institute of petroleum and chemical engineering technology in China under the trademark DZJ-Y. In table 1, the blank case is no retarder.
TABLE 1
* And (3) maintenance conditions: at 90 deg.C for 21MPa for 48 hr
Through the test examples, it can be found that: under the same experimental conditions, the thickening time of the test example 1 added with the retarder of the example 1 is obviously prolonged compared with that of the blank example without the retarder, and the retarding effect is obvious. The test example 9 without the reinforcing agent had a longer thickening time than the test example 1 with the retarder of example 1, and the set strength was lower than that of the test example 1, and the retarder of the present invention had an effect of remarkably improving the set strength in addition to the effect of shortening the thickening time. The thickening time of the test example 10 without the addition of the stabilizer is shortened compared with that of the test example 1 with the addition of the retarder of the example 1, the strength of the set cement is lower than that of the test example 1, the strength of the cement water can also be obviously improved by the stabilizer besides the effect of prolonging the thickening time, so the reinforcing agent and the stabilizer need to be added according to a proper proportion, and the proper strength of the thickening time of the whole retarder is ensured to be rapidly developed. Test example 13 and test example 14 mainly adjust the ratio of tartaric acid to sodium glucoheptonate, which are key factors affecting thickening time, wherein the effect of tartaric acid is greater than that of sodium glucoheptonate.
[ test example II ]
An oil-well cement slurry system was prepared using the oil-well cement retarder of example 1 and tested for thickening time using the method of GB _ T19139-2012, at experimental conditions of 160 ℃ x 80min x 80MPa, with the results shown in table 2. Specifically, the oil well cement paste system is as follows: 100 parts of G-grade cement, 35 parts of silica powder, 1 part of fluid loss additive (5 parts), retarder (the dosage is shown in table 2) and 53 parts of tap water.
TABLE 2
| Serial number | Retarder addition/% | Experiment temperature/. Degree.C | Thickening time/min |
| 1 | 0 | 130 | 67 |
| 2 | 1 | 130 | 230 |
| 3 | 1.2 | 140 | 260 |
| 4 | 1.4 | 150 | 300 |
| 5 | 1.6 | 160 | 322 |
| 6 | 1.8 | 170 | 340 |
| 7 | 2.0 | 180 | 360 |
As can be seen from Table 2, the oil well cement retarder of the present invention has a good linear relationship of addition.
What has been described above is merely a preferred example of the present invention. It should be noted that other equivalent variations and modifications can be made by those skilled in the art based on the technical teaching provided by the present invention, and the protection scope of the present invention should be considered.
Claims (10)
1. An oil well cement retarder is prepared from the following raw materials: reinforcing agent, stabilizing agent, tartaric acid, sodium glucoheptonate, sodium gluconate and deionized water.
2. An oil well cement retarder according to claim 1, characterized in that the amount of each substance is: 0.01 to 2 weight portions of reinforcing agent, 10 to 30 weight portions of stabilizing agent, 5 to 20 weight portions of tartaric acid, 2 to 15 weight portions of glucoheptonic acid, 0.5 to 10 weight portions of sodium gluconate and 100 weight portions of deionized water;
preferably, the amount of each substance is as follows in parts by weight: 0.1 to 1 weight portion of reinforcing agent, 15 to 20 weight portions of stabilizing agent, 10 to 15 weight portions of tartaric acid, 5 to 10 weight portions of sodium glucoheptonate, 1 to 5 weight portions of sodium gluconate and 100 weight portions of deionized water.
3. An oil well cement retarder according to claim 1 or 2, characterized in that the weight ratio of reinforcing agent to stabilizer is 0.005-0.015.
4. An oil well cement retarder according to any one of claims 1-3, characterized in that the stabilizer is yellow dextrin.
5. An oil well cement retarder according to any one of claims 1 to 4, characterized in that the reinforcing agent is nanographene, preferably 1 to 3 layers, more preferably the monolayer rate is not less than 80%, more preferably the carbon content of the reinforcing agent is more than 98%, more preferably the D50 plate diameter of the reinforcing agent is 7 to 12 μm.
6. A method of making an oil well cement retarder as claimed in any one of claims 1 to 5 comprising the steps of:
step I, sequentially adding a stabilizer, tartaric acid, sodium glucoheptonate and sodium gluconate into deionized water for reaction to obtain a first solution;
and II, mixing the first solution with an enhancer, and then dispersing.
7. The method of claim 6, wherein the reaction conditions include: the temperature is 40-60 ℃ and the time is 0.5-2 h.
8. The method of claim 6 or 7, wherein the mixing conditions include: the time is 0.5 to 2 hours.
9. The production method according to any one of claims 6 to 8, wherein the conditions for dispersion include: the temperature is 40-60 ℃, and the time is 30-120 min.
10. Use of the oil well cement retarder of any of claims 1-5 in the oilfield field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931149.1A CN115893903A (en) | 2021-08-13 | 2021-08-13 | Oil well cement retarder and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110931149.1A CN115893903A (en) | 2021-08-13 | 2021-08-13 | Oil well cement retarder and preparation method and application thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115893903A true CN115893903A (en) | 2023-04-04 |
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| CN202110931149.1A Pending CN115893903A (en) | 2021-08-13 | 2021-08-13 | Oil well cement retarder and preparation method and application thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597487A (en) * | 2009-06-26 | 2009-12-09 | 天津中油渤星工程科技有限公司 | A kind of oil well cement high temperature retarder |
| CN105315977A (en) * | 2014-07-28 | 2016-02-10 | 中国石油化工股份有限公司 | Oil well cement retarder and preparation method therefor |
-
2021
- 2021-08-13 CN CN202110931149.1A patent/CN115893903A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101597487A (en) * | 2009-06-26 | 2009-12-09 | 天津中油渤星工程科技有限公司 | A kind of oil well cement high temperature retarder |
| CN105315977A (en) * | 2014-07-28 | 2016-02-10 | 中国石油化工股份有限公司 | Oil well cement retarder and preparation method therefor |
Non-Patent Citations (1)
| Title |
|---|
| 宋建建等: "纳米材料在油井水泥中的应用进展", 纳米材料在油井水泥中的应用进展, vol. 18, no. 19, 8 July 2018 (2018-07-08), pages 141 - 148 * |
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