CN109135697B - High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof - Google Patents
High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof Download PDFInfo
- Publication number
- CN109135697B CN109135697B CN201811090192.4A CN201811090192A CN109135697B CN 109135697 B CN109135697 B CN 109135697B CN 201811090192 A CN201811090192 A CN 201811090192A CN 109135697 B CN109135697 B CN 109135697B
- Authority
- CN
- China
- Prior art keywords
- oil displacement
- mixed material
- density oil
- temperature resistant
- high temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C09K8/40—Spacer compositions, e.g. compositions used to separate well-drilling from cementing masses
Abstract
The invention relates to the technical field of well cementation in drilling engineering, in particular to a high-temperature-resistant ultrahigh-density oil displacement isolating liquid and a preparation method thereof. The high-temperature-resistant ultrahigh-density oil displacement isolating liquid and the preparation method thereof improve the temperature resistance of slurry and the flushing effect in an oil-containing environment by adding the high-temperature-resistant material and the surfactant which are matched with the high-temperature-resistant material. The high-temperature-resistant ultrahigh-density oil displacement isolation fluid disclosed by the invention has the advantages of good slurry stability and good flow property, can effectively ensure the oil displacement effect in a lipophilic environment, is more suitable for oil-based drilling fluid in a high-temperature environment, and has the advantages of high temperature resistance and high oil displacement efficiency.
Description
Technical Field
The invention relates to the technical field of well cementation in drilling engineering, in particular to a high-temperature-resistant ultrahigh-density oil displacement isolation liquid and a preparation method thereof.
Background
At present, the quantity of unconventional oil and gas resources exceeds the quantity of conventional oil and gas resources worldwide, wherein the development of deep wells, ultra-deep wells and shale gas changes the distribution of the oil and gas resources worldwide. Up to now, oil-based mud resists high temperature, salt and calcium erosion, is beneficial to well wall stability, has good lubricity and little damage to oil and gas reservoirs, and is applied to various drilling platforms.
The oil well adopts the oil-based drilling fluid to drill, a layer of oil-based drilling fluid and an oil film are adhered to the well wall and the casing when the drilling is finished, the flushing efficiency of the conventional pad fluid to the oil film on the well wall and the casing is low, the compatibility with the oil-based drilling fluid is poor, the displacement efficiency and the cementing property of a cement sheath interface are not high, and the engineering accident can be caused in serious cases. How to improve the efficiency of the pad fluid in flushing oil films attached to the well wall and the casing is an urgent problem to be solved for oil-based drilling fluid well cementation.
Disclosure of Invention
The invention provides a high-temperature-resistant ultrahigh-density oil-displacement isolation liquid and a preparation method thereof, overcomes the defects of the prior art, and can effectively solve the problems of poor well cementation quality caused by poor stability, low oil displacement efficiency and poor oil displacement effect of an oil-based drilling fluid in the environment of oil-based drilling fluids of deep wells, ultra-deep wells and shale gas wells.
One of the technical schemes of the invention is realized by the following measures: the high temperature resistant ultra-high density oil displacement isolating liquid comprises, by weight, 80-245 parts of a weighting material, 35-60 parts of quartz sand, 4-12 parts of silica fume, 4-15 parts of a suspending agent, 5-25 parts of a surfactant, 0.6-1.4 parts of a drag reducer, 0.5 part of an antifoaming agent and 100 parts of water.
The following is a further optimization or/and improvement of one of the above-mentioned technical solutions of the invention:
the weighting material is more than one of iron ore powder, barite and chromium manganese powder.
The diameter of the quartz sand particles is 125-160 mu m, and SiO in the quartz sand2The weight percentage content is 90 to 98 percent.
The diameter of the micro silicon powder particles is 0.15 to 0.5 mu m, and SiO in the micro silicon powder2The weight percentage content is 90 to 98 percent.
The suspending agent is more than one of carboxymethyl cellulose and polyanion cellulose.
The drag reducer is a mixture of formaldehyde-acetone polycondensate and melamine-formaldehyde resin.
The defoaming agent is a mixture of phosphate and glycerol polyether surfactant.
The high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
The second technical scheme of the invention is realized by the following measures: the preparation method of the high-temperature-resistant ultrahigh-density oil displacement isolation liquid comprises the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
According to the high-temperature-resistant ultrahigh-density oil displacement spacer fluid and the preparation method thereof, the high-temperature-resistant material and the surfactant which are matched with the spacer fluid are added into the ultrahigh-density spacer fluid, so that the temperature resistance of slurry and the flushing effect in an oil-containing environment are improved. The high-temperature-resistant ultrahigh-density oil displacement isolation fluid disclosed by the invention has the advantages of good slurry stability and flow property, capability of effectively ensuring the oil displacement effect in an oleophylic environment, suitability for oil-based drilling fluid in a high-temperature environment, obvious oil displacement effect, high temperature resistance and high oil displacement efficiency.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention. The various chemical reagents and chemical articles mentioned in the invention are all the chemical reagents and chemical articles which are well known and commonly used in the prior art, unless otherwise specified; the percentages in the invention are mass percentages unless otherwise specified; the solution in the present invention is an aqueous solution in which the solvent is water, for example, a hydrochloric acid solution is an aqueous hydrochloric acid solution, unless otherwise specified; the normal temperature and room temperature in the present invention generally mean a temperature of 15 ℃ to 25 ℃, and are generally defined as 25 ℃.
The invention is further described below with reference to the following examples:
example 1: the high-temperature resistant ultra-high density oil displacement isolating liquid comprises, by weight, 80-245 parts of a weighting material, 35-60 parts of quartz sand, 4-12 parts of silica fume, 4-15 parts of a suspending agent, 5-25 parts of a surfactant, 0.6-1.4 parts of a drag reducer, 0.5 part of an antifoaming agent and 100 parts of water.
Example 2: the high-temperature resistant ultra-high density oil displacement isolating liquid comprises, by weight, 80 parts or 245 parts of a weighting material, 35 parts or 60 parts of quartz sand, 4 parts or 12 parts of silica fume, 4 parts or 15 parts of a suspending agent, 5 parts or 25 parts of a surfactant, 0.6 part or 1.4 parts of a drag reducer, 0.5 part of an antifoaming agent and 100 parts of water.
Example 3: as the optimization of the embodiment, the weighting material is more than one of iron ore powder, barite and chromium manganese powder.
Example 4: as an optimization of the above embodiment, quartzThe diameter of sand particles is 125-160 mu m, and SiO in the quartz sand2The weight percentage content is 90 to 98 percent.
Example 5: as optimization of the above embodiment, the particle diameter of the micro silicon powder is 0.15 μm to 0.5 μm, and SiO in the micro silicon powder2The weight percentage content is 90 to 98 percent.
Example 6: in the optimization of the embodiment, the suspending agent is more than one of carboxymethyl cellulose and polyanionic cellulose.
Example 7: as an optimization of the above embodiment, the drag reducer is a mixture of a formaldehyde acetone polycondensate and a melamine formaldehyde resin.
Example 8: as an optimization of the above example, the defoamer is a mixture of phosphate ester and glycerol polyether surfactant.
Example 9: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
In the high-temperature resistant ultrahigh-density oil displacement spacer fluid and the preparation method thereof, the inertia of the weighting material enables the weighting material not to participate in slurry reaction, and the weighting material has low sakaguchi soil content, so that the high-temperature resistant ultrahigh-density oil displacement spacer fluid can be uniformly dispersed and the thixotropic effect of the slurry is reduced; in the high-temperature-resistant ultrahigh-density oil displacement isolation liquid, the quartz sand and the microsilica enable the high-temperature-resistant ultrahigh-density oil displacement isolation liquid to have double effects, on one hand, the grain composition and the tight packing of slurry are more reasonable, the stability of the slurry is improved by a physical method, and on the other hand, the high-temperature resistance of the slurry is improved by the high-temperature resistance of the quartz sand and the microsilica; in the high-temperature-resistant ultrahigh-density oil displacement isolation solution, a suspending agent reacts with water to form a high molecular chain, and the stability of slurry is improved by a chemical method; in the high-temperature-resistant ultrahigh-density oil displacement isolation liquid, the surfactant participates in reaction in an oleophylic environment, and finally wetting inversion reaches a hydrophilic environment, so that the oil displacement efficiency is improved.
Example 10: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: step one, uniformly mixing 80 parts of weighting material, 35 parts of quartz sand and 4 parts of micro silicon powder to obtain a solid mixed material; step two, uniformly mixing 4 parts of suspending agent, 5 parts of surfactant, 0.6 part of drag reducer, 0.5 part of defoaming agent and 100 parts of water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
Example 11: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: step one, uniformly mixing 110 parts of weighting material, 40 parts of quartz sand and 6 parts of silica fume to obtain a solid mixed material; step two, uniformly mixing 4 parts of suspending agent, 5 parts of surfactant, 0.6 part of drag reducer, 0.5 part of defoaming agent and 100 parts of water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
Example 12: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: step one, 160 parts of weighting material, 47 parts of quartz sand and 8 parts of micro silicon powder are uniformly mixed to obtain a solid mixed material; step two, uniformly mixing 10 parts of suspending agent, 15 parts of surfactant, 1.0 part of drag reducer, 0.5 part of defoaming agent and 100 parts of water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
Example 13: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: step one, uniformly mixing 210 parts of weighting material, 52 parts of quartz sand and 10 parts of micro silicon powder to obtain a solid mixed material; step two, uniformly mixing 12 parts of suspending agent, 20 parts of surfactant, 1.2 parts of drag reducer, 0.5 part of defoaming agent and 100 parts of water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
Example 14: the high-temperature-resistant ultrahigh-density oil displacement isolation solution is obtained by the following steps: step one, 245 parts of weighting material, 60 parts of quartz sand and 12 parts of micro silicon powder are uniformly mixed to obtain a solid mixed material; step two, uniformly mixing 15 parts of suspending agent, 25 parts of surfactant, 1.4 parts of drag reducer, 0.5 part of defoaming agent and 100 parts of water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
The performance data of the high-temperature resistant ultra-high density oil displacement and isolation fluid obtained in examples 10 to 14 of the invention and the conventional oil displacement and isolation fluid are shown in table 1. As can be seen from Table 1, the high temperature resistant ultra-high density oil displacement isolation fluid has the characteristics of high temperature resistance, good stability and high oil displacement efficiency.
In conclusion, the high-temperature-resistant ultrahigh-density oil displacement isolating liquid and the preparation method thereof improve the temperature resistance of slurry and the flushing effect in an oil-containing environment by adding the high-temperature-resistant material and the surfactant which are matched with the ultrahigh-density isolating liquid into the ultrahigh-density isolating liquid. The high-temperature-resistant ultrahigh-density oil displacement isolation fluid disclosed by the invention has the advantages of good slurry stability and flow property, capability of effectively ensuring the oil displacement effect in an oleophylic environment, suitability for oil-based drilling fluid in a high-temperature environment, obvious oil displacement effect, high temperature resistance and high oil displacement efficiency.
The technical characteristics form an embodiment of the invention, which has strong adaptability and implementation effect, and unnecessary technical characteristics can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (24)
1. The high temperature resistant ultra-high density oil displacement isolating liquid is characterized by comprising 80 to 245 parts of weighting material, 35 to 60 parts of quartz sand, 4 to 12 parts of micro silicon powder, 4 to 15 parts of suspending agent, 5 to 25 parts of surfactant, 0.6 to 1.4 parts of drag reducer, 0.5 part of defoaming agent and 100 parts of water by weight.
2. The high temperature resistant ultra-high density oil displacement separation fluid of claim 1, wherein the weighting material is one or more of iron ore powder, barite, chromium manganese powder.
3. The high temperature resistant ultra-high density oil displacement spacer fluid as claimed in claim 1 or 2, wherein the diameter of the quartz sand particles is 125 μm to 160 μm, and SiO in the quartz sand particles2The weight percentage content is 90 to 98 percent.
4. The high temperature resistant ultra-high density oil displacement separation solution as claimed in claim 1 or 2, wherein the diameter of the micro silicon powder particles is 0.15 μm to 0.5 μm, and SiO in the micro silicon powder2The weight percentage content is 90 to 98 percent.
5. The high temperature resistant ultra-high density oil displacement separation solution as claimed in claim 3, wherein the diameter of the micro silicon powder particles is 0.15 μm to 0.5 μm, and SiO in the micro silicon powder2The weight percentage content is 90 to 98 percent.
6. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 1, 2 or 5, characterized in that the suspending agent is more than one of carboxymethyl cellulose and polyanionic cellulose.
7. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 3 wherein the suspending agent is one or more of carboxymethyl cellulose and polyanionic cellulose.
8. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 4, wherein the suspending agent is one or more of carboxymethyl cellulose and polyanionic cellulose.
9. The high temperature resistant ultra high density oil displacement spacer fluid of claim 1 or 2 or 5 or 7 or 8, wherein the drag reducing agent is a mixture of a formaldehyde acetone condensation polymer and a melamine formaldehyde resin.
10. The high temperature resistant ultra high density oil displacement spacer fluid of claim 3 wherein the drag reducing agent is a mixture of a formaldehyde acetone condensation polymer and a melamine formaldehyde resin.
11. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 4 wherein the drag reducing agent is a mixture of a formaldehyde acetone condensation polymer and a melamine formaldehyde resin.
12. The high temperature resistant ultra high density oil displacement spacer fluid of claim 6 wherein the drag reducing agent is a mixture of a formaldehyde acetone condensation polymer and a melamine formaldehyde resin.
13. The high temperature resistant ultra high density oil displacement spacer fluid of claim 1 or 2 or 5 or 7 or 8 or 10 or 11 or 12 wherein the defoamer is a mixture of phosphate ester and glyceryl polyether surfactant.
14. The high temperature resistant ultra high density oil displacement spacer fluid of claim 3 wherein the defoamer is a mixture of phosphate esters and glycerol polyether surfactants.
15. The high temperature resistant ultra high density oil displacement spacer fluid of claim 4 wherein the defoamer is a mixture of phosphate ester and glycerol polyether surfactant.
16. The high temperature resistant ultra high density oil displacement spacer fluid of claim 6 wherein the defoamer is a mixture of phosphate esters and glycerol polyether surfactants.
17. The high temperature resistant ultra high density oil displacement spacer fluid of claim 9 wherein the defoamer is a mixture of phosphate esters and glycerol polyether surfactants.
18. The high temperature resistant ultra-high density oil displacement spacer fluid according to claim 1 or 2 or 5 or 7 or 8 or 10 or 11 or 12 or 14 or 15 or 16 or 17, which is characterized by being obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
19. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 3, which is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
20. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 4, which is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
21. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 6, which is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
22. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 9, which is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
23. The high temperature resistant ultra-high density oil displacement spacer fluid of claim 13, which is obtained by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
24. A method for preparing the high temperature resistant ultra high density oil displacement spacer fluid according to claim 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20 or 21 or 22 or 23, characterized by the following steps: firstly, uniformly mixing a required amount of weighting material, quartz sand and micro silicon powder to obtain a solid mixed material; secondly, uniformly mixing the required amount of suspending agent, surfactant, drag reducer, defoaming agent and water to obtain a liquid mixed material; and step three, mixing and uniformly stirring the solid mixed material and the liquid mixed material to obtain the high-temperature-resistant ultrahigh-density oil displacement isolation liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090192.4A CN109135697B (en) | 2018-09-18 | 2018-09-18 | High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811090192.4A CN109135697B (en) | 2018-09-18 | 2018-09-18 | High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109135697A CN109135697A (en) | 2019-01-04 |
| CN109135697B true CN109135697B (en) | 2020-10-16 |
Family
ID=64814761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811090192.4A Active CN109135697B (en) | 2018-09-18 | 2018-09-18 | High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109135697B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110643334A (en) * | 2019-10-08 | 2020-01-03 | 中国石油集团渤海钻探工程有限公司 | Nanoparticle reinforced well cementation spacer fluid |
| CN114426816B (en) * | 2020-09-21 | 2023-06-13 | 中国石油化工股份有限公司 | High-temperature-resistant well cementation spacer fluid and preparation method and application thereof |
| CN112375551B (en) * | 2020-12-08 | 2022-11-25 | 中国石油天然气集团有限公司 | Oil-based spacer fluid for well cementation and water injection and preparation method thereof |
| CN113667463A (en) * | 2021-09-08 | 2021-11-19 | 中石化石油工程技术服务有限公司 | Oil displacement isolation liquid for medium-low temperature oil-based drilling fluid and preparation method thereof |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190110A (en) * | 1978-05-19 | 1980-02-26 | The Western Company Of North America | Method of cementing wellbores using high temperature cement mud spacer |
| US4588032A (en) * | 1984-08-09 | 1986-05-13 | Halliburton Company | Fluid spacer composition for use in well cementing |
| CN1405265A (en) * | 2002-11-18 | 2003-03-26 | 大庆石油管理局 | Oil-based mud flushing liquor and preparation method thereof |
| CN1858146A (en) * | 2005-12-26 | 2006-11-08 | 西南石油学院 | Anti-pollution high efficiency isolation liquid and preparing method |
| CN1865185A (en) * | 2005-05-21 | 2006-11-22 | 新疆石油管理局钻井工艺研究院 | High density concrete slurry |
| CN1900210A (en) * | 2006-07-24 | 2007-01-24 | 大庆石油管理局 | High temperature high density isolation liquid |
| CN101161760A (en) * | 2007-10-10 | 2008-04-16 | 华北石油管理局钻井工艺研究院 | Oil well cement-injection pad fluid admixture and preparation method |
| CN101307224A (en) * | 2008-07-01 | 2008-11-19 | 大庆石油管理局 | High-temperature resistant water-based insulating liquid |
| CN101921580A (en) * | 2010-06-30 | 2010-12-22 | 西南石油大学 | High temperature resistant anti-salt isolation solution and preparation method thereof |
| CN103224774A (en) * | 2013-04-01 | 2013-07-31 | 中国石油天然气集团公司 | Dual-effect well cementing pad fluid using suspending agent as surfactant |
| CN103555304A (en) * | 2013-11-08 | 2014-02-05 | 沈阳工业大学 | High-efficiency oil-based flushing spacer liquid and preparation method thereof |
| CN103849364A (en) * | 2012-11-30 | 2014-06-11 | 天津中油渤星工程科技有限公司 | Flushing liquid for oil-based drilling fluid well cementation and preparation method thereof |
| CN104745165A (en) * | 2015-02-25 | 2015-07-01 | 中国石油集团渤海钻探工程有限公司 | Salty flushing fluid for well cementation and preparation method thereof |
| CN105019859A (en) * | 2015-08-20 | 2015-11-04 | 中国海洋石油总公司 | Pressure stabilizing technology capable of improving well cementing quality of high-temperature and high-pressure well |
| CN105419758A (en) * | 2015-12-25 | 2016-03-23 | 中国石油大学(华东) | Well cementation flushing liquid system suitable for oil-based drilling fluid and preparation method thereof |
| CN108441194A (en) * | 2018-03-27 | 2018-08-24 | 长江大学 | The cleaning method of the borehole wall and the Cementing used before a kind of well cementation of synthetic base drilling fluid |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8522873B2 (en) * | 2005-09-09 | 2013-09-03 | Halliburton Energy Services, Inc. | Spacer fluids containing cement kiln dust and methods of use |
-
2018
- 2018-09-18 CN CN201811090192.4A patent/CN109135697B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4190110A (en) * | 1978-05-19 | 1980-02-26 | The Western Company Of North America | Method of cementing wellbores using high temperature cement mud spacer |
| US4588032A (en) * | 1984-08-09 | 1986-05-13 | Halliburton Company | Fluid spacer composition for use in well cementing |
| CN1405265A (en) * | 2002-11-18 | 2003-03-26 | 大庆石油管理局 | Oil-based mud flushing liquor and preparation method thereof |
| CN1865185A (en) * | 2005-05-21 | 2006-11-22 | 新疆石油管理局钻井工艺研究院 | High density concrete slurry |
| CN1858146A (en) * | 2005-12-26 | 2006-11-08 | 西南石油学院 | Anti-pollution high efficiency isolation liquid and preparing method |
| CN1900210A (en) * | 2006-07-24 | 2007-01-24 | 大庆石油管理局 | High temperature high density isolation liquid |
| CN101161760A (en) * | 2007-10-10 | 2008-04-16 | 华北石油管理局钻井工艺研究院 | Oil well cement-injection pad fluid admixture and preparation method |
| CN101307224A (en) * | 2008-07-01 | 2008-11-19 | 大庆石油管理局 | High-temperature resistant water-based insulating liquid |
| CN101921580A (en) * | 2010-06-30 | 2010-12-22 | 西南石油大学 | High temperature resistant anti-salt isolation solution and preparation method thereof |
| CN103849364A (en) * | 2012-11-30 | 2014-06-11 | 天津中油渤星工程科技有限公司 | Flushing liquid for oil-based drilling fluid well cementation and preparation method thereof |
| CN103224774A (en) * | 2013-04-01 | 2013-07-31 | 中国石油天然气集团公司 | Dual-effect well cementing pad fluid using suspending agent as surfactant |
| CN103555304A (en) * | 2013-11-08 | 2014-02-05 | 沈阳工业大学 | High-efficiency oil-based flushing spacer liquid and preparation method thereof |
| CN104745165A (en) * | 2015-02-25 | 2015-07-01 | 中国石油集团渤海钻探工程有限公司 | Salty flushing fluid for well cementation and preparation method thereof |
| CN105019859A (en) * | 2015-08-20 | 2015-11-04 | 中国海洋石油总公司 | Pressure stabilizing technology capable of improving well cementing quality of high-temperature and high-pressure well |
| CN105419758A (en) * | 2015-12-25 | 2016-03-23 | 中国石油大学(华东) | Well cementation flushing liquid system suitable for oil-based drilling fluid and preparation method thereof |
| CN108441194A (en) * | 2018-03-27 | 2018-08-24 | 长江大学 | The cleaning method of the borehole wall and the Cementing used before a kind of well cementation of synthetic base drilling fluid |
Non-Patent Citations (5)
| Title |
|---|
| MS高效前置液的研制及其应用;丁士东;《石油钻采工艺》;19951231;第17卷(第3期);第27-33页 * |
| Small-clearance liner cementing in deep and high-temperature wellbore of the well Qishen-1;He shu-shan;《Natural gas industry》;20080731;第28卷(第7期);第49-51页 * |
| 丁山区块深层页岩气水平井固井技术;孙坤忠;《石油钻探技术》;20150531;第43卷(第3期);第55-60页 * |
| 固井隔离液综述;姚晓;《钻井液与完井液》;19941231;第11卷(第6期);第18-30页 * |
| 适用于油基钻井液的高效前置液的研究与应用;齐静;《钻井液与完井液》;20080531;第25卷(第3期);第49-51页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109135697A (en) | 2019-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109135697B (en) | High-temperature-resistant ultrahigh-density oil displacement isolation liquid and preparation method thereof | |
| CN106966648B (en) | CO prevention2、H2S corrosion well cementation cement slurry | |
| CN103270132B (en) | Compositions and method for completion | |
| US20080289825A1 (en) | Downhole Mixing Of Encapsulated Plug Components For Primary Cementing A Well | |
| US11053424B2 (en) | Temperature-resistant calcium-resistant water-based drilling fluid for oil and gas reservoir protection and use thereof | |
| EA002938B1 (en) | Cementation product and use for cementing oil wells or the like | |
| EP0592217A2 (en) | Well cementing | |
| CN109265093A (en) | Ultra-Low Density Cement Slurries are used in well cementation | |
| CN105038745A (en) | Novel liquid silicon anti-channeling cement slurry used in well cementation | |
| CN111116113B (en) | Oil well cement composition and application thereof | |
| WO2008150468A1 (en) | Oil-well cement fluid loss additive composition | |
| WO2017023159A1 (en) | Compositions and methods for well completions | |
| US11542425B1 (en) | Leak-proof lost-circulation control water-based drilling fluid composition and preparation method and use thereof | |
| CN111908848A (en) | Cement slurry for well cementation and preparation method and application thereof | |
| CN113955979B (en) | Non-dispersible high-temperature-resistant cement-based consolidation material in underground water environment and preparation method thereof | |
| US11060009B2 (en) | Filtrate reducer for temperature-resistant calcium-resistant water-based drilling fluid used in oil and gas reservoir protection, drilling fluid, and uses thereof | |
| CN111056784B (en) | Cement slurry for hydrate well cementation and preparation method thereof | |
| CN113227313A (en) | Compatible low crystalline silica spacers | |
| CN111040747A (en) | Long horizontal section horizontal well cementing curable pad fluid and application thereof | |
| CN113429163B (en) | Cement composition for well cementation operation, cement slurry system and preparation method thereof | |
| CN114479789B (en) | High-temperature high-pressure expandable plugging agent composition, preparation method and application thereof | |
| CN114198052A (en) | Method for improving cementing strength of marine natural gas hydrate formation well cementation two-interface | |
| CN114989792B (en) | Ultra-deep well high-temperature-resistant high-density water-based drilling fluid and preparation method thereof | |
| CN112375551B (en) | Oil-based spacer fluid for well cementation and water injection and preparation method thereof | |
| US20210156224A1 (en) | High Strength High Temperature Float Equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201110 Address after: 100120 Beijing Xicheng District six laying Kang Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Xibu Drilling Engineering Co.,Ltd. Address before: 834000 Drilling Engineering Research Institute, No. 98 Youyi Road, Karamay District, Karamay City, Xinjiang Uygur Autonomous Region Patentee before: CNPC Xibu Drilling Engineering Co.,Ltd. |