CN113292975A - Novel oil field paraffin removal and dissolution ball and preparation method thereof - Google Patents
Novel oil field paraffin removal and dissolution ball and preparation method thereof Download PDFInfo
- Publication number
- CN113292975A CN113292975A CN202110713776.8A CN202110713776A CN113292975A CN 113292975 A CN113292975 A CN 113292975A CN 202110713776 A CN202110713776 A CN 202110713776A CN 113292975 A CN113292975 A CN 113292975A
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- ball
- paraffin removal
- sphere
- dissolution
- oil field
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- 239000012188 paraffin wax Substances 0.000 title claims abstract description 77
- 238000004090 dissolution Methods 0.000 title claims abstract description 34
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000001993 wax Substances 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 8
- 239000003208 petroleum Substances 0.000 claims description 5
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 5
- 239000004800 polyvinyl chloride Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 238000004512 die casting Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003566 sealing material Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 description 29
- 238000009833 condensation Methods 0.000 description 6
- 230000005494 condensation Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000010779 crude oil Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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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
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/204—Keeping clear the surface of open water from oil spills
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
Abstract
The invention provides a novel oil field paraffin removal and dissolution ball and a preparation method thereof, and relates to the technical field of oil exploitation. The method comprises the following steps: a sphere which is hollow; the outer surface of the sphere is a smooth surface, and the inner surface of the sphere is provided with protrusions arranged in an array manner; the sphere is filled with paraffin removal agent. The invention provides a novel oil field paraffin removal and dissolution ball and a preparation method thereof, which solve the problem that the existing rubber paraffin removal ball is easy to block a pipeline. When the pressure reaches the rated pressure, the ball body is broken into pieces, and the ball clamping phenomenon cannot be caused.
Description
Technical Field
The invention relates to the technical field of oil exploitation, in particular to a novel oil field paraffin removal and dissolution ball and a preparation method thereof.
Background
In the process of pipeline transportation of crude oil from a wellhead to a booster station in the production process of oil exploitation, paraffin (C) in the crude oil16H34～C64H13) The inner wall of the pipeline is easy to form blockage especially in low-temperature environment. In order to avoid blockage caused by paraffin condensation, the conventional production process adopts a mode of regularly putting paraffin removal balls, and the paraffin removal balls are pushed to clean the paraffin condensed on the pipe wall through pipe conveying pressure, so that the smoothness of the pipeline is ensured.
The paraffin removal balls used at present are rubber solid balls and have certain strength and elasticity (tensile strength is not less than 10Mpa, elongation at break is not less than 240%, permanent deformation at break is not more than 15%, and hardness is 75 +/-5 Shore A). However, in practical use, when the paraffin condensation pipe wall reaches a certain thickness, the paraffin is pushed by the paraffin removal ball more and more, and finally, the pipeline conveying pressure cannot push the paraffin removal ball to move forward, so that the pipeline is blocked. At this time, the thermal purging operation of the oil pipeline is usually performed by using a hot car washing, the paraffin dissolution is promoted by the thermal force, and the blocked paraffin removal balls and paraffin are completely removed by high pressure. When serious blockage occurs and the pipeline cannot be dredged by the hot car washing, the pipeline cleaning operation is usually carried out by searching for a blockage point and excavating and cutting the pipeline. The difficulty of work and the production cost are enormous.
Disclosure of Invention
The invention aims to provide a novel oil field paraffin removal and dissolving ball and a preparation method thereof aiming at the defects in the prior art. The sphere can bear the pressure of 0.8-1.5MPa, and when the pressure exceeds the design pressure of a product, the sphere is broken, the paraffin remover in the sphere flows out, paraffin in a blocking area is dissolved, and the paraffin removal and dissolving functions are realized. The ball body has certain structural characteristics, can be broken into smaller pieces under the action of pressure after being broken, is discharged along with the flowing of crude oil in the pipeline, and cannot be deposited inside the pipeline to form secondary blockage.
The invention aims to provide a novel oil field paraffin removal and dissolving ball, which comprises the following components:
a sphere which is hollow;
the outer surface of the sphere is a smooth surface, and the inner surface of the sphere is provided with protrusions arranged in an array manner;
the sphere is filled with paraffin removal agent.
Preferably, the outer diameter of the sphere is 32mm to 48 mm.
Preferably, the thickness of the sphere wall is 1.5-2.5 mm.
Preferably, the protrusion is a regular triangular pyramid or a regular quadrangular pyramid, and the tip of the regular triangular pyramid or the regular quadrangular pyramid is arranged far away from the inner side of the sphere.
More preferably, the bottom edges between two adjacent protrusions are the same bottom edge.
Preferably, the material of the sphere is a mixture of petroleum resin and polyvinyl chloride, and the mass ratio of the petroleum resin to the polyvinyl chloride is 3: 7.
Preferably, the pressure borne by the wax dissolving ball is 0.8-1.5 MPa.
The second purpose of the invention is to provide a preparation method of a novel oil field paraffin removal and dissolution ball, which is characterized by comprising the following steps:
two semicircular spheres are produced by adopting a die casting mode, and then the two semicircular spheres are matched to form a complete sphere; during the mold closing process, wax removing agent filling ports and exhaust ports are reserved at symmetrical parts of the sphere;
and (3) filling the paraffin removal agent into the matched sphere through filling equipment, and sealing to obtain the novel oil field paraffin removal and dissolution sphere.
Preferably, the material used for sealing is the same as that of the ball, and the sealing temperature is 150-160 ℃.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a novel oil field paraffin removal and dissolution ball and a preparation method thereof, which solve the problem that the existing rubber paraffin removal ball is easy to block a pipeline. When the pressure reaches the rated pressure, the ball body is broken into pieces, and the ball clamping phenomenon cannot be caused. The paraffin cleaner in the sphere can act on the paraffin, improve the solubility, reduce the viscosity of the paraffin, provide the fluidity and avoid wall condensation. When the wax condensation of the pipeline is not serious and the pipeline pressure is not high, the product is not broken and can be recycled.
Drawings
Fig. 1 is a schematic structural diagram of the novel oil field paraffin removal and dissolving ball provided by the invention.
Fig. 2 is a schematic diagram of the internal structure of the novel oilfield paraffin removal and dissolution ball provided by the invention.
Detailed Description
In order to make the technical solutions of the present invention better understood and enable those skilled in the art to practice the present invention, the following embodiments are further described, but the present invention is not limited to the following embodiments.
The novel oil field paraffin removal and dissolution ball adopted in the following embodiment is shown in figures 1-2 and comprises the following steps;
a ball 1 having a hollow shape;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the ball body 1 is filled with paraffin removal agent;
the outer diameter of the sphere is 32 mm-48 mm.
The thickness of the sphere wall 3 is 1.5-2.5 mm.
The bulges are regular triangular pyramids or regular quadrangular pyramids; the tip of the regular triangular pyramid or the regular quadrangular pyramid is arranged far away from the inner side of the sphere; the bottom edges between two adjacent bulges are the same bottom edge.
The novel oil field paraffin removal and dissolution ball provided by each embodiment is made of a mixture of 30 wt% of petroleum resin and 70 wt% of polyvinyl chloride;
the wax removing agent added into the novel oil field wax removing and dissolving ball provided by each embodiment is CX1 oil-based oil field wax removing agent.
The novel oil field paraffin removal and dissolution ball provided by the following embodiments is prepared according to the following steps:
producing two semicircular spheres by using a die casting mode, and then closing the two semicircular spheres into a complete sphere; during the mold closing process, wax removing agent filling ports and exhaust ports are reserved at symmetrical parts of the sphere;
and (3) filling the paraffin removal agent into the matched sphere through filling equipment, and sealing to obtain the novel oil field paraffin removal and dissolution sphere. Wherein, the material used for sealing is the same as that of the ball, and the sealing temperature is 156 ℃.
Example 1
A novel oil field paraffin removal and dissolution ball is shown in figures 1-2 and comprises;
the ball body 1 is hollow, wherein the outer diameter of the ball body is 32mm, and the wall thickness is 1.5 mm;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the protrusions are regular triangular pyramids, wherein the length of the bottom edge of each regular triangular pyramid is 4mm, the height of each regular triangular pyramid is 1mm,
the bottom edges of two adjacent regular triangular pyramids are the same bottom edge;
the ball body 1 is filled with paraffin remover.
Example 2
A novel oil field paraffin removal and dissolution ball is shown in figures 1-2 and comprises;
the ball body 1 is hollow, wherein the outer diameter of the ball body is 36mm, and the wall thickness is 1.7 mm;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the protrusions are regular triangular pyramids, wherein the length of the bottom edge of each regular triangular pyramid is 4mm, the height of each regular triangular pyramid is 1.2mm,
the bottom edges of two adjacent regular triangular pyramids are the same bottom edge;
the ball body 1 is filled with paraffin remover.
Example 3
A novel oil field paraffin removal and dissolution ball is shown in figures 1-2 and comprises;
the ball body 1 is hollow, wherein the outer diameter of the ball body is 40mm, and the wall thickness is 1.9 mm;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the protrusions are regular rectangular pyramids, wherein the length of the bottom edge of each regular rectangular pyramid is 4mm, the height of each regular rectangular pyramid is 1.4mm,
the bottom edges of two adjacent regular rectangular pyramids are the same bottom edge;
the ball body 1 is filled with paraffin remover.
Example 4
A novel oil field paraffin removal and dissolution ball is shown in figures 1-2 and comprises;
the ball body 1 is hollow, wherein the outer diameter of the ball body is 45mm, and the wall thickness is 2.2 mm;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the protrusions are regular rectangular pyramids, wherein the bottom side of each regular rectangular pyramid is 5mm in length and 1.5mm in height,
the bottom edges of two adjacent regular rectangular pyramids are the same bottom edge;
the ball body 1 is filled with paraffin remover.
Example 5
A novel oil field paraffin removal and dissolution ball is shown in figures 1-2 and comprises;
the ball body 1 is hollow, wherein the outer diameter of the ball body is 48mm, and the wall thickness is 2.5 mm;
the outer surface of the sphere 1 is a smooth surface, and the inner surface 2 of the sphere is provided with bulges arranged in an array;
the protrusions are regular triangular pyramids, wherein the length of the bottom edge of each regular triangular pyramid is 6mm, the height of each regular triangular pyramid is 1.5mm,
the bottom edges of two adjacent regular triangular pyramids are the same bottom edge;
the ball body 1 is filled with paraffin remover.
In order to illustrate the pressure-bearing performance of the novel oil field paraffin removal and dissolution ball provided by the invention, the novel oil field paraffin removal and dissolution ball provided by the embodiments 1-5 is subjected to a pressure-bearing test, and the result is shown in table 1.
Table 1 shows the pressure-bearing performance of the novel oil field paraffin removal and dissolution ball provided in examples 1 to 5
| Examples | Maximum bearing pressure/ |
| 1 | 0.8 |
| 2 | 1.0 |
| 3 | 1.1 |
| 4 | 1.2 |
| 5 | 1.2 |
As can be seen from the table, the novel oil field paraffin removal and dissolution ball provided by the invention can bear the pressure of 0.8-1.2MPa, and when the pressure exceeds the design pressure of a product, the ball is broken, the paraffin removal agent in the ball flows out, and the paraffin in a blocking area is dissolved, so that the paraffin removal and dissolution functions are realized. The ball body has certain structural characteristics, can be broken into smaller pieces under the action of pressure after being broken, is discharged along with the flowing of crude oil in the pipeline, and cannot be deposited inside the pipeline to form secondary blockage.
The invention provides a novel oil field paraffin removal and dissolving ball and a preparation method thereof.
The invention provides a novel oil field paraffin removal and dissolution ball and a preparation method thereof, which solve the problem that the existing rubber paraffin removal ball is easy to block a pipeline. When the pressure reaches the rated pressure, the ball body is broken into pieces, and the ball clamping phenomenon cannot be caused. The paraffin cleaner in the sphere can act on the paraffin, improve the solubility, reduce the viscosity of the paraffin, provide the fluidity and avoid wall condensation. When the wax condensation of the pipeline is not serious and the pipeline pressure is not high, the product is not broken and can be recycled.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. The utility model provides a novel oil field paraffin removal dissolves wax ball which characterized in that includes:
a sphere which is hollow;
the outer surface of the sphere is a smooth surface, and the inner surface of the sphere is provided with protrusions arranged in an array manner;
the sphere is filled with paraffin removal agent.
2. The novel oilfield paraffin removal and dissolution ball as recited in claim 1, wherein the outer diameter of the ball is 32 mm-48 mm.
3. The novel oilfield paraffin removal and dissolution ball as recited in claim 1, wherein the thickness of the ball wall is 1.5-2.5 mm.
4. The novel oilfield paraffin removal and dissolution ball as recited in claim 1, wherein the protrusion is a regular triangular pyramid or a regular quadrangular pyramid, and the tip of the regular triangular pyramid or the regular quadrangular pyramid is arranged far away from the inner side of the ball body.
5. The novel oilfield paraffin removal and dissolution ball as claimed in claim 4, wherein the bottom edge between two adjacent protrusions is the same bottom edge.
6. The novel oilfield paraffin removal and dissolution ball as recited in claim 1, wherein the ball body is made of a mixture of petroleum resin and polyvinyl chloride, and the mass ratio of the petroleum resin to the polyvinyl chloride is 3: 7.
7. The novel oilfield paraffin removal and dissolution ball as recited in claim 1, wherein the ball bears a pressure of 0.8-1.5 MPa.
8. The preparation method of the novel oilfield paraffin removal and dissolution ball as claimed in any one of claims 1 to 7, characterized by comprising the following steps:
two semicircular spheres are produced by adopting a die casting mode, and then the two semicircular spheres are matched to form a complete sphere; during the mold closing process, wax removing agent filling ports and exhaust ports are reserved at symmetrical parts of the sphere;
and (3) filling the paraffin removal agent into the matched sphere through filling equipment, and sealing to obtain the novel oil field paraffin removal and dissolution sphere.
9. The preparation method of the novel oilfield paraffin removal and dissolution ball as claimed in claim 1, wherein the sealing material is the same as the ball body, and the sealing temperature is 150-160 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713776.8A CN113292975B (en) | 2021-06-25 | 2021-06-25 | Novel paraffin removal and dissolution ball for oil field and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110713776.8A CN113292975B (en) | 2021-06-25 | 2021-06-25 | Novel paraffin removal and dissolution ball for oil field and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113292975A true CN113292975A (en) | 2021-08-24 |
| CN113292975B CN113292975B (en) | 2023-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110713776.8A Active CN113292975B (en) | 2021-06-25 | 2021-06-25 | Novel paraffin removal and dissolution ball for oil field and preparation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080135245A1 (en) * | 2005-02-04 | 2008-06-12 | Oxane Materials, Inc. | Composition and Method For Making a Proppant |
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| CN109236236A (en) * | 2018-10-23 | 2019-01-18 | 西安奥德石油工程技术有限责任公司 | A kind of petroleum pipeline wax removal part |
| CN109868127A (en) * | 2019-03-13 | 2019-06-11 | 西安石油大学 | A kind of inline type paraffin removing with chemical method ball and its preparation method and application |
| CN109926407A (en) * | 2019-03-13 | 2019-06-25 | 西安石油大学 | A kind of non-recycled type paraffin removing with chemical method ball and its preparation method and application |
| CN110257045A (en) * | 2019-05-09 | 2019-09-20 | 四川维泰科创石油设备制造有限公司 | A kind of proppant, fracturing fluid and the fracturing process of oil gas rock stratum |
| CN110305643A (en) * | 2019-06-21 | 2019-10-08 | 西安石油大油气科技有限公司 | A kind of environment-friendly type oil field Wax removing agent and preparation method thereof |
| CN110586588A (en) * | 2019-09-29 | 2019-12-20 | 银川塞昊橡胶有限公司 | Wax removal ball |
| CN111058799A (en) * | 2019-12-09 | 2020-04-24 | 陕西聚想橡塑制品有限公司 | Carbon fiber casting type polyurethane hollow paraffin removal ball |
| CN214937213U (en) * | 2021-06-25 | 2021-11-30 | 陕西庆荣石化科技有限公司 | Novel oil field paraffin removal and dissolution ball |
-
2021
- 2021-06-25 CN CN202110713776.8A patent/CN113292975B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080135245A1 (en) * | 2005-02-04 | 2008-06-12 | Oxane Materials, Inc. | Composition and Method For Making a Proppant |
| CN108997992A (en) * | 2018-09-05 | 2018-12-14 | 石家庄长宏能源科技有限公司 | A kind of oilfield environmentally friendly Wax removing agent and preparation method thereof |
| CN109236236A (en) * | 2018-10-23 | 2019-01-18 | 西安奥德石油工程技术有限责任公司 | A kind of petroleum pipeline wax removal part |
| CN109868127A (en) * | 2019-03-13 | 2019-06-11 | 西安石油大学 | A kind of inline type paraffin removing with chemical method ball and its preparation method and application |
| CN109926407A (en) * | 2019-03-13 | 2019-06-25 | 西安石油大学 | A kind of non-recycled type paraffin removing with chemical method ball and its preparation method and application |
| CN110257045A (en) * | 2019-05-09 | 2019-09-20 | 四川维泰科创石油设备制造有限公司 | A kind of proppant, fracturing fluid and the fracturing process of oil gas rock stratum |
| CN110305643A (en) * | 2019-06-21 | 2019-10-08 | 西安石油大油气科技有限公司 | A kind of environment-friendly type oil field Wax removing agent and preparation method thereof |
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| CN111058799A (en) * | 2019-12-09 | 2020-04-24 | 陕西聚想橡塑制品有限公司 | Carbon fiber casting type polyurethane hollow paraffin removal ball |
| CN214937213U (en) * | 2021-06-25 | 2021-11-30 | 陕西庆荣石化科技有限公司 | Novel oil field paraffin removal and dissolution ball |
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| CN113292975B (en) | 2023-12-22 |
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