CN114015420A - Natural asphalt powder as anti-sloughing agent for drilling fluid - Google Patents
Natural asphalt powder as anti-sloughing agent for drilling fluid Download PDFInfo
- Publication number
- CN114015420A CN114015420A CN202111451473.XA CN202111451473A CN114015420A CN 114015420 A CN114015420 A CN 114015420A CN 202111451473 A CN202111451473 A CN 202111451473A CN 114015420 A CN114015420 A CN 114015420A
- Authority
- CN
- China
- Prior art keywords
- percent
- natural asphalt
- asphalt powder
- drilling fluid
- collapse
- Prior art date
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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
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
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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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an anti-sloughing agent natural asphalt powder for drilling fluid, and relates to the technical field of anti-sloughing agents. The anti-collapse agent natural asphalt powder consists of 65-75% of natural asphalt, 4-5% of polyethylene glycol, 15-20% of ammonium salt and 6-10% of chlorinated paraffin. The anti-collapse agent natural asphalt powder also plays roles in lubricating and reducing high-temperature and high-pressure filtration loss in the drilling fluid, and is a drilling fluid treating agent with multiple functions of plugging, anti-collapse, lubricating and the like.
Description
Technical Field
The invention belongs to the technical field of anti-sloughing agents, and particularly relates to anti-sloughing agent natural asphalt powder for drilling fluid.
Background
As the drilling fluid filtrate enters the rock pore, the pore pressure is increased, the effective combination of the quality inspection of the mineral particles is reduced, and the rock strength is also reduced. Meanwhile, the bonding force of non-chemical cementation such as hydrogen bonds of quality inspection of mineral particles such as formation clay and the like is destroyed by water. Thus allowing pore pressure to diffuse and thereby destabilize the wellbore wall. In order to overcome the above problems, it is an effective means to add an anti-collapse agent into the drilling fluid, but at present, the binding capacity of the anti-collapse agent and the drilling fluid is relatively poor, and therefore, the anti-collapse effect still needs to be further improved.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-sloughing agent natural asphalt powder for drilling fluid, which is composed of the following raw materials in percentage by mass:
65 to 75 percent of natural asphalt powder,
4 to 5 percent of polyethylene glycol,
15 to 20 percent of ammonium salt,
6% -10% of chlorinated paraffin, wherein the ammonium salt is preferably one of ammonium chloride and ammonium nitrate. The polyethylene glycol is polyethylene glycol 4000.
Preferably, the anti-collapse agent natural asphalt powder disclosed by the invention is prepared from the following raw materials in percentage by mass:
75 percent of natural asphalt powder,
4 percent of polyethylene glycol,
15 percent of hydrolyzed ammonium salt,
6% of high molecular polymer.
Preferably, the anti-collapse agent natural asphalt powder disclosed by the invention is prepared from the following raw materials in percentage by mass:
70 percent of natural asphalt powder,
5 percent of polyethylene glycol,
15 percent of ammonium salt,
10% of chlorinated paraffin.
Preferably, the anti-collapse agent natural asphalt powder disclosed by the invention is prepared from the following raw materials in percentage by mass:
65 percent of natural asphalt powder,
5 percent of polyethylene glycol,
20 percent of ammonium salt,
10% of chlorinated paraffin.
The use method of the anti-collapse agent natural asphalt powder for the drilling fluid is that 1-3 wt% of the anti-collapse agent is added into the drilling fluid and is used after being uniformly mixed.
Compared with the prior art, the invention has the following beneficial effects:
the anti-collapse agent natural asphalt powder also plays roles in lubricating and reducing high-temperature and high-pressure filtration loss in the drilling fluid, and is a drilling fluid treating agent with multiple functions of plugging, anti-collapse, lubricating and the like.
Detailed Description
The present invention will be further described with reference to the following specific examples.
Example 1
The anti-collapse agent natural asphalt powder comprises the following raw materials in percentage by mass:
75 percent of natural asphalt powder,
4 percent of polyethylene glycol,
15 percent of ammonium chloride,
6 percent of chlorinated paraffin.
Example 2
The anti-collapse agent natural asphalt powder comprises the following raw materials in percentage by mass:
70 percent of natural asphalt powder,
5 percent of polyethylene glycol,
15 percent of ammonium nitrate,
10% of chlorinated paraffin.
Example 3
The anti-collapse agent natural asphalt powder comprises the following raw materials in percentage by mass:
65 percent of natural asphalt powder,
5 percent of polyethylene glycol,
20 percent of ammonium chloride,
10% of chlorinated paraffin.
The performance of the anti-collapse agent natural asphalt powders prepared in examples 1 to 3 was measured, as shown in Table 1.
TABLE 1
The method for detecting the softening point comprises the following steps:
the anti-collapse agent was melted by heating and then molded, and the softening point was measured according to the GB/T4507 standard.
The foaming rate is detected as follows:
base slurry: taking 400mL of distilled water, adding 0.96g of anhydrous sodium carbonate and 16.0g of bentonite for drilling fluid under stirring, stirring at a high speed for 20min, and sealing and maintaining at room temperature for 24 h.
Taking 300mL of base slurry, adding 3.0g of the anti-collapse agent, stirring at a high speed for 5min, taking down the base slurry from a telling stirrer, immediately pouring the base slurry into a clean measuring cylinder, reading the total volume within 10s, and reading the volume V of the sample slurry.
Calculating the bubble rate X according to equation (1):
X＝(V-300)/300×100％ (1)。
it should be noted that the above-mentioned embodiments are merely examples of the present invention, and it is obvious that the present invention is not limited to the above-mentioned embodiments, and other modifications are possible. All modifications directly or indirectly derivable by a person skilled in the art from the present disclosure are to be considered within the scope of the present invention.
Claims (5)
1. The anti-collapse agent natural asphalt powder for the drilling fluid is characterized by comprising the following raw materials in percentage by mass:
65 to 75 percent of natural asphalt powder,
4 to 5 percent of polyethylene glycol,
15 to 20 percent of ammonium salt,
6 to 10 percent of chlorinated paraffin.
2. The anti-collapse agent natural asphalt powder for the drilling fluid as claimed in claim 1, which is characterized by comprising the following raw materials in percentage by mass:
75 percent of natural asphalt powder,
4 percent of polyethylene glycol,
15 percent of ammonium salt,
6 percent of chlorinated paraffin.
3. The anti-collapse agent natural asphalt powder for the drilling fluid as claimed in claim 1, which is characterized by comprising the following raw materials in percentage by mass:
70 percent of natural asphalt powder,
5 percent of polyethylene glycol,
15 percent of ammonium salt,
10% of chlorinated paraffin.
4. The anti-collapse agent natural asphalt powder for the drilling fluid as claimed in claim 1, which is characterized by comprising the following raw materials in percentage by mass:
65 percent of natural asphalt powder,
5 percent of polyethylene glycol,
20 percent of ammonium salt,
10% of chlorinated paraffin.
5. The use method of the anti-collapse agent natural asphalt powder for the drilling fluid according to any one of claims 1 to 4, characterized in that 1 to 3 wt% of the anti-collapse agent is added into the drilling fluid and is used after being uniformly mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451473.XA CN114015420A (en) | 2021-12-01 | 2021-12-01 | Natural asphalt powder as anti-sloughing agent for drilling fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111451473.XA CN114015420A (en) | 2021-12-01 | 2021-12-01 | Natural asphalt powder as anti-sloughing agent for drilling fluid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114015420A true CN114015420A (en) | 2022-02-08 |
Family
ID=80067301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111451473.XA Pending CN114015420A (en) | 2021-12-01 | 2021-12-01 | Natural asphalt powder as anti-sloughing agent for drilling fluid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114015420A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO80940A2 (en) * | 1980-12-02 | 1983-02-01 | Institutul De Cercetari Si Proiectari Pentru Petrol Si Gaze,Ro | LUBRICANT FOR DRILLING, PERFORATING AND PACKING FLUIDS |
| CN1715334A (en) * | 2005-08-08 | 2006-01-04 | 倪红霞 | High efficiency anti-collapse asphalt powder for well drilling liquid |
| CN101831281A (en) * | 2010-05-19 | 2010-09-15 | 濮阳市诚信钻采助剂有限公司 | High-dispersion modified asphalt powder and preparation method thereof |
| CN109880603A (en) * | 2019-04-01 | 2019-06-14 | 安徽陆海石油助剂科技有限公司 | A kind of anti-collapse sealing agent of drilling fluid high temperature and its production method |
| CN113336963A (en) * | 2021-06-09 | 2021-09-03 | 巴州三元石油助剂有限公司 | Cationic emulsified asphalt for drilling fluid, preparation method and softening point blending method thereof |
-
2021
- 2021-12-01 CN CN202111451473.XA patent/CN114015420A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RO80940A2 (en) * | 1980-12-02 | 1983-02-01 | Institutul De Cercetari Si Proiectari Pentru Petrol Si Gaze,Ro | LUBRICANT FOR DRILLING, PERFORATING AND PACKING FLUIDS |
| CN1715334A (en) * | 2005-08-08 | 2006-01-04 | 倪红霞 | High efficiency anti-collapse asphalt powder for well drilling liquid |
| CN101831281A (en) * | 2010-05-19 | 2010-09-15 | 濮阳市诚信钻采助剂有限公司 | High-dispersion modified asphalt powder and preparation method thereof |
| CN109880603A (en) * | 2019-04-01 | 2019-06-14 | 安徽陆海石油助剂科技有限公司 | A kind of anti-collapse sealing agent of drilling fluid high temperature and its production method |
| CN113336963A (en) * | 2021-06-09 | 2021-09-03 | 巴州三元石油助剂有限公司 | Cationic emulsified asphalt for drilling fluid, preparation method and softening point blending method thereof |
Non-Patent Citations (5)
| Title |
|---|
| 丁锐: "钻井液防塌剂的作用方式及分类", 《石油大学学报(自然科学版)》 * |
| 刘程: "《表面活性剂性质理论与应用》", 30 June 2003, 北京工业大学出版社 * |
| 林学文等: "粉状防塌润滑剂FRH-C的研制", 《油田化学》 * |
| 王瑞和: "《钻井工艺技术基础 第2版》", 31 December 2016, 中国石油大学出版社 * |
| 胡湘炯: "《油气井工程》", 28 February 2003, 中国石化出版社 * |
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