CN104559977B - A kind of material and preparation, application process for improving drilling fluid filter cake quality - Google Patents
A kind of material and preparation, application process for improving drilling fluid filter cake quality Download PDFInfo
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- CN104559977B CN104559977B CN201310510841.2A CN201310510841A CN104559977B CN 104559977 B CN104559977 B CN 104559977B CN 201310510841 A CN201310510841 A CN 201310510841A CN 104559977 B CN104559977 B CN 104559977B
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- filter cake
- drilling fluid
- sepiolite
- fluid filter
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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
- C09K8/032—Inorganic additives
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/34—Lubricant additives
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- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Filtering Materials (AREA)
Abstract
The present invention provides a kind of preparation for the material and the material for improving drilling fluid filter cake quality, application process.Material is made up of nano silicon and sepiolite.Preparation method is after first mixing nano silicon and sepiolite, to be disperseed using energy-gathered ultrasonic material emulsion dispersion instrument；Then 2 5h are calcined at 300 500 DEG C；Finally energy-gathered ultrasonic material emulsion dispersion instrument is recycled to be disperseed.Application process is that the material is added in drilling fluid for 1% 3% amount in mass ratio.The present invention, which had both considered nano-scale particle, to be entered in filter cake micropore and microcrack, strengthen the compactness of filter cake；The fibre structure of sepiolite can be utilized again, filter cake hole and cracking initiation are built bridge, and then forms plugged zone, reduce the permeability of filter cake；On the other hand, the fibre structure of sepiolite can increase the toughness of filter cake, further increase the greasy property of filter cake.
Description
Technical field
The present invention relates to drilling fluid auxiliary material field, more particularly to a kind of material for being used to improve drilling fluid filter cake quality
And prepare, application process.
Background technology
Aquation, which easily occurs, for mud shale stratum chance water electrode disperses, so as to cause caving in for the borehole wall.Come from situation about studying at present
See, the quality of drilling fluid filter cake be directly connected to the degree that mud shale immersed by water and the borehole wall stabilization whether.The brill of high quality
Well liquid filter cake can reduce wellbore liquid leaching loss, reduce the amount that water is invaded mud shale.Therefore, drilling fluid filter cake quality is fine or not right
In the plugging effect for improving mud shale stratum, ensure that wellbore stability tool is of great significance.
At present, improve drilling fluid filter cake quality both at home and abroad, improving drilling fluid seal-off effect, reduce grinding for filter loss etc.
In studying carefully, many effort are had been made, many inorganic agents relative maturity, also there is relatively good effect.Such as open it is all
《A kind of synthesis of oil base expansion plugging agent and its performance evaluation》It is middle to have synthesized a kind of expansion plugging agent for oil base drilling fluid
（See《Changjiang University's journal (natural science edition)》, 2010,7（3））, base stock be styrene, oil absorption monomer, crosslinking agent,
Initiator, polyvinyl alcohol and calcium carbonate.Hu Wenjun etc. exists《Application of the strong closure oil base drilling fluid system in W11-4D oil fields》In
A kind of oil base drilling fluid with strong shut-off capacity is proposed, sealing agent is acted on using emulsified asphalt, resin, calcium carbonate superfine powder
（See《Drilling and completion fluids》, 2007,24（3））.Publication number 102863947A patent discloses a kind of high inhibition and blocked by force
Drilling fluid, strong sealing agent be cation modified asphalt, sulfonated gilsonite, bitumen powder, cationic emulsified bitumen, colloidal pitch,
One or more kinds of compositions in latex, emulsified wax.Publication number 103013469A patent discloses a kind of use and received
The method that rice silica improves water-base drilling fluid performance under different temperatures, the invention are provided one kind and changed using nano silicon
The method of water-base drilling fluid performance under kind different temperatures, adds nano silicon dioxide dispersion in base slurry, makes base starch to be formed more
Add thin and compact mud cake, improve filtrate reducing effect.But the shortcomings that these technologies or deficiency are：1. the micropore in filter cake is sealed
Stifled inadequate, also there is very big progress space in filter cake compactness, if in big section mud shale stratum in use, rheological property occurs
Change, there is the possibility for causing borehole well instability；It is largely pin 2. the material improved for oil base drilling fluid filter cake quality is also less
To water-base drilling fluid, and oil base drilling fluid improves filter cake quality, improves shut-off capacity, and the success or failure to drilling well are most important.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of above-mentioned technology, there is provided one kind can be effectively to water base or oil base drilling fluid
The hole of filter cake is blocked, and improves filter cake toughness, improvement of mud cake；Go deep into formation pore and crack depths simultaneously, over the ground
Layer is blocked, and improves the material of the improvement drilling fluid filter cake quality of borehole wall stability, and the preparation of the material and application side
Method.
Technical scheme includes
First, a kind of material for improving drilling fluid filter cake quality, by nano silicon and sepiolite by weight 4-5:
1-2 is formed.
Described nano silicon is the hydrophobicity powder of particle diameter 20-500 nanometers, and described sepiolite is particle diameter 200-
The powder of 500 mesh.
Secondly, the preparation method of the material of foregoing improvement drilling fluid filter cake quality is：
After first mixing nano silicon and sepiolite, divided using energy-gathered ultrasonic material emulsion dispersion instrument
Dissipate, both is fully mixed to uniformly；Then 2-5h is calcined at 300-500 DEG C；Finally recycle energy-gathered ultrasonic material
Emulsion dispersion instrument is disperseed, and the powder of even particle size is made.
Third, improvement drilling fluid filter cake quality prepared by the material and preparation method of foregoing improvement drilling fluid filter cake quality
The application process of material be：The amount that the material for improving drilling fluid filter cake quality is 1%-3% by the mass ratio of drilling fluid adds
Enter in drilling fluid.
The invention has the advantages that：
1. the present invention prepares the addition dressing material of drilling fluid using nano silicon and sepiolite, nanometer is both considered
Grade particles can enter in filter cake micropore and microcrack, strengthen the compactness of filter cake；The fiber knot of sepiolite can be utilized again
Structure, filter cake hole and cracking initiation are built bridge, and then form plugged zone, strengthened the closure to filter cake, reduce the permeability of filter cake；
On the other hand, the fibre structure of sepiolite can increase the toughness of filter cake, improve the quality of filter cake, further increase the profit of filter cake
Slip energy.
2. the mode that the present invention in the material preparation method for improving drilling fluid filter cake quality, is disperseed using ultrasonic wave, is carried
The high uniformity coefficient of material powder mixing, have using both preferably acted synergistically.
3. the present invention is in the material preparation method for improving drilling fluid filter cake quality, to nano silicon and sepiolite
Mixture is calcined, and is not only eliminated the organic matter in nanometer titanium dioxide silicon structure, is purified it, and high-temperature calcination
Zeolite water is disappeared, and the purity of sepiolite improved by the decomposition of calcium carbonate, also add absorption property,
Sepiolite is activated, has and is played a role using sepiolite in drilling fluid.
4. nano-particle, which spreads over filter cake surface, can increase the greasy property of filter cake, have and bored using drilling fluid in long horizontal sections
Used in well.
Embodiment
Embodiment one：
A kind of material for improving drilling fluid filter cake quality, is 300 purposes by silica and particle diameter that particle diameter is 100 nanometers
Sepiolite mixing is by weight 4:After 1, disperseed using energy-gathered ultrasonic material emulsion dispersion instrument, be sufficiently mixed both
To uniform, 2h is then calcined at 300 DEG C, then recycles energy-gathered ultrasonic material emulsion dispersion instrument to be disperseed, is made
The powder of even particle size.It is viscosity 60s, proportion 1.25g/cm in a kind of basic performance3, emulsion-breaking voltage 890v, high temperature height
Filter pressing loss 8.9ml, 1% is added in the oil base drilling fluid of lubricating coefficient 0.045（Mass ratio）Above-mentioned improvement drilling fluid filter cake quality
Material after, oil base drilling fluid high temperature and high pre ssure filtration is reduced to 5.6ml, and lubricating coefficient is reduced to 0.042.
Embodiment two：
A kind of material for improving drilling fluid filter cake quality, is 500 purposes by silica and particle diameter that particle diameter is 500 nanometers
Sepiolite is by weight 4:After 1 mixing, disperseed using energy-gathered ultrasonic material emulsion dispersion instrument, be sufficiently mixed both
To uniform, 5h is then calcined at 500 DEG C, then recycles energy-gathered ultrasonic material emulsion dispersion instrument to be disperseed, is made
The powder of even particle size.It is viscosity 60s, proportion 1.25g/cm in a kind of basic performance3, emulsion-breaking voltage 890v, high temperature height
Filter pressing loss 8.9ml, 3% is added in the oil base drilling fluid of lubricating coefficient 0.045（Mass ratio）Above-mentioned improvement drilling fluid filter cake quality
Material after, oil base drilling fluid high temperature and high pre ssure filtration is reduced to 4.2ml, and lubricating coefficient is reduced to 0.040.
Embodiment three：
A kind of material for improving drilling fluid filter cake quality, is 200 purposes by silica and particle diameter that particle diameter is 20 nanometers
Sepiolite is by weight 5:2 is well mixed.It is viscosity 50s, proportion 1.15g/cm in a kind of basic performance3, HTHP leak-off
10.6ml is measured, 1% is added in the water-base drilling fluid of lubricating coefficient 0.157（Mass ratio）The material of above-mentioned improvement drilling fluid filter cake quality
After material, oil base drilling fluid high temperature and high pre ssure filtration is reduced to 8.4ml, and lubricating coefficient is reduced to 0.128.
Example IV：
A kind of material for improving drilling fluid filter cake quality, is 400 purposes by silica and particle diameter that particle diameter is 300 nanometers
Sepiolite is by weight 3:After 1 mixing, disperseed using energy-gathered ultrasonic material emulsion dispersion instrument, be sufficiently mixed both
To uniform, 5h is then calcined at 500 DEG C, then recycles energy-gathered ultrasonic material emulsion dispersion instrument to be disperseed, is made
The powder of even particle size.It is viscosity 50s, proportion 1.15g/cm in a kind of basic performance3, high temperature and high pre ssure filtration
10.6ml, 3% is added in the water-base drilling fluid of lubricating coefficient 0.157（Mass ratio）A kind of above-mentioned improvement drilling fluid filter cake quality
After material, oil base drilling fluid high temperature and high pre ssure filtration is reduced to 7.9ml, and lubricating coefficient is reduced to 0.112.
Claims (2)
1. a kind of material preparation method for improving drilling fluid filter cake quality, the material for improving drilling fluid filter cake quality is by nanometer
Silica and sepiolite are by weight 4-5:1-2 is formed, and wherein nano silicon is the hydrophobic of particle diameter 20-500 nanometers
Property powder, sepiolite be particle diameter 200-500 mesh powder；The preparation method of the material of foregoing improvement drilling fluid filter cake quality
It is：After first mixing nano silicon and sepiolite, disperseed using energy-gathered ultrasonic material emulsion dispersion instrument, made
Both are fully mixed to uniformly；Then 2-5h is calcined at 300-500 DEG C；Finally recycle the emulsification of energy-gathered ultrasonic material
Separating apparatus is disperseed, and the powder of even particle size is made.
2. improvement drilling fluid filter cake prepared by the material preparation method according to the improvement drilling fluid filter cake quality described in claim 1
The application process of the material of quality, it is characterised in that the material for improving drilling fluid filter cake quality presses the mass ratio of drilling fluid
Added for 1%-3% amount in drilling fluid.
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| CN104559977A CN104559977A (en) | 2015-04-29 |
| CN104559977B true CN104559977B (en) | 2018-03-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104710968A (en) * | 2013-12-17 | 2015-06-17 | 中国石油化工集团公司 | Plugging material and drilling fluid additive and use method thereof |
| CN105467085A (en) * | 2015-12-28 | 2016-04-06 | 西南石油大学 | Method for evaluating blocking effect of nanometer material |
| CN107011875A (en) * | 2017-04-12 | 2017-08-04 | 中国石油化工股份有限公司 | A kind of drilling fluid crack sealing agent and preparation method thereof |
| CN109652032B (en) * | 2019-01-22 | 2021-08-03 | 北京宏勤石油助剂有限公司 | Mud cake toughening modifier for drilling fluid and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734903A (en) * | 2008-11-14 | 2010-06-16 | 中国电力科学研究院 | Nano silica dioxide heat-insulating material and preparation method thereof |
| CN103270130A (en) * | 2010-12-23 | 2013-08-28 | 哈利伯顿能源服务公司 | Drilling fluids having reduced sag potential and related methods |
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2013
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734903A (en) * | 2008-11-14 | 2010-06-16 | 中国电力科学研究院 | Nano silica dioxide heat-insulating material and preparation method thereof |
| CN103270130A (en) * | 2010-12-23 | 2013-08-28 | 哈利伯顿能源服务公司 | Drilling fluids having reduced sag potential and related methods |
Non-Patent Citations (1)
| Title |
|---|
| 非常规油气藏水平井油基钻井液技术;刘明华等;《钻井液与完井液》;20130331;第30卷(第2期);第1－5页 * |
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Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: CHINA PETROLEUM & CHEMICAL Corp. Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |
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Effective date of registration: 20230717 Address after: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee after: SINOPEC Group Patentee after: Drilling fluid technology service center of Sinopec Shengli Petroleum Engineering Co.,Ltd. Address before: 100728 No. 22 North Main Street, Chaoyang District, Beijing, Chaoyangmen Patentee before: SINOPEC Group Patentee before: SINOPEC SHENGLI PETROLEUM ENGINEERING CO., LTD. DRILLING TECHNOLOGY Research Institute |