CN117823747A - Oil field pipeline scaling treatment process - Google Patents
Oil field pipeline scaling treatment process Download PDFInfo
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- CN117823747A CN117823747A CN202410049712.6A CN202410049712A CN117823747A CN 117823747 A CN117823747 A CN 117823747A CN 202410049712 A CN202410049712 A CN 202410049712A CN 117823747 A CN117823747 A CN 117823747A
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- pipeline
- scale
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- water quality
- scaling
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- 238000000034 method Methods 0.000 title claims abstract description 32
- 230000008569 process Effects 0.000 title claims abstract description 20
- 239000000126 substance Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000002455 scale inhibitor Substances 0.000 claims abstract description 22
- 238000004458 analytical method Methods 0.000 claims abstract description 19
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 14
- 238000012423 maintenance Methods 0.000 claims abstract description 14
- 238000004506 ultrasonic cleaning Methods 0.000 claims abstract description 13
- 238000004140 cleaning Methods 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 238000005260 corrosion Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 230000007797 corrosion Effects 0.000 claims abstract description 8
- 238000002848 electrochemical method Methods 0.000 claims abstract description 8
- 230000000737 periodic effect Effects 0.000 claims abstract description 8
- 238000011156 evaluation Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 238000005516 engineering process Methods 0.000 claims description 7
- 238000000909 electrodialysis Methods 0.000 claims description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 4
- 239000011707 mineral Substances 0.000 claims description 4
- 239000002332 oil field water Substances 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000003449 preventive effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000004210 cathodic protection Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Abstract
The invention relates to the field of oilfield engineering, in particular to a process for treating scaling of oilfield pipelines, which comprises the following steps: including pipeline assessment, water quality analysis, chemical scale inhibitor injection, mechanical cleaning, ultrasonic cleaning, electrochemical methods, periodic inspection and maintenance, and corrosion protection coating, its functions are: through detailed pipeline evaluation and water quality analysis, the targeted treatment scheme is realized, the scale formation risk is reduced, the stability and maintainability of the pipeline are improved, the technical effects of improving productivity, prolonging the service life of the pipeline, reducing the maintenance cost and the like are further achieved, the pipeline is not required to be disassembled, the interference to a pipeline system is reduced, the convenience of operation is improved, the chemical, mechanical and ultrasonic cleaning methods are comprehensively adopted, more accurate and effective treatment can be provided for scales of different types and degrees, the service life of the pipeline can be prolonged, the maintenance frequency is reduced, and the reliability of the whole oilfield conveying system is improved.
Description
Technical Field
The invention relates to the field of oilfield engineering, in particular to a process for treating scaling of oilfield pipelines.
Background
Oilfield pipeline scaling management refers to a series of engineering and technical measures to clean and maintain the pipeline system in the oilfield production and transportation process to prevent, alleviate or eliminate the scaling problem inside the pipeline. Pipeline fouling refers to various substances deposited within a pipeline, such as minerals, precipitates, corrosion products, etc., which may clog the pipeline, affect the normal flow of fluid, reduce the efficiency of transportation, increase energy consumption, and even cause pipeline breakage and equipment failure.
At present, the oil field pipeline can be scaled for a long time, the effective cross section of the pipeline can be reduced due to scaling, the flow of fluid is limited, the production efficiency is reduced, the friction resistance of the fluid in the pipeline is increased, the energy consumption in the conveying process is increased, the pipeline and related equipment can be corroded and worn due to scaling, and the equipment aging is accelerated.
Disclosure of Invention
The invention aims to provide a process for treating scaling of oilfield pipelines, which aims to solve the problems in the background technology.
In order to achieve the above objects, in one aspect, the present invention is directed to a process for oilfield pipeline scale control, including pipeline assessment, water quality analysis, chemical scale inhibitor injection, mechanical cleaning, ultrasonic cleaning, electrochemical methods, periodic inspection and maintenance, and corrosion protection coating;
the pipeline assessment also carries out water quality analysis while assessing the scale formation degree and condition of the pipeline, determines the type, the components and the possible reason for forming the scale in the pipeline, the water quality analysis result guides the subsequent treatment step and the selection of the scale inhibitor, and based on the water quality analysis result, the chemical scale inhibitor with proper type and dosage is selected to be injected into the pipeline so as to prevent the formation of the scale or reduce the scale formation rate, and when the chemical scale inhibitor has limited effect or is more refractory to the scale, the scale in the pipeline is physically removed by adopting a mechanical cleaning or ultrasonic cleaning mode, and the state and the scale degree of the pipeline and the condition of the anticorrosive coating are periodically detected.
Further, the pipeline is evaluated as a comprehensive evaluation of oilfield pipelines, including pipeline material, diameter, length, and operating condition information, prior to scale remediation.
Further, the water quality analysis is to analyze the water quality in oilfield water injection, and know the components such as salts, minerals and the like in the water so as to determine the main components of pipeline scaling.
Further, the chemical scale inhibitor is injected into a pipeline to form a scale, a proper chemical scale inhibitor is selected, and scaling substances are dissolved or dispersed in a pipeline injection mode to prevent the continuous development of scaling.
Further, the mechanical cleaning is to physically remove scale forming substances within the pipe using a high pressure water jet device having a longer working distance for more refractory scaling, and using an endoscope.
Further, the ultrasonic cleaning is a non-invasive scale treatment method, and tiny bubbles can be generated in the pipeline through the action of ultrasonic waves, so that impact force is generated.
Further, the electrochemical method comprises anode and cathode protection and electrodialysis technology, scaling is prevented or slowed down by the action of current, and the current and potential are monitored and regulated by adopting an automation technology to ensure proper levels of current and potential so as to improve the treatment effect.
Further, after the periodic detection and maintenance is a fouling abatement, periodic pipeline detection is required to ensure that the fouling problem is effectively controlled.
Further, the anti-corrosion coating is applied to the surface of the pipeline, so that scaling can be reduced.
The invention has the following advantages:
through detailed pipeline evaluation and water quality analysis, a targeted treatment scheme is realized, the scale formation risk is reduced, the stability and maintainability of the pipeline are improved, and the technical effects of improving the productivity, prolonging the service life of the pipeline, reducing the maintenance cost and the like are further achieved;
the pipeline is not required to be disassembled, the interference to a pipeline system is reduced, the convenience of operation is improved, the chemical, mechanical and ultrasonic cleaning methods are comprehensively adopted, more accurate and effective treatment can be provided for scaling of different types and degrees, the service life of the pipeline can be prolonged, the maintenance frequency is reduced, and the reliability of the whole oilfield conveying system is improved.
Drawings
Fig. 1 is a block diagram of the overall flow of the present invention.
Detailed Description
Other advantages and advantages of the present invention will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 1, a process for oilfield pipeline scale control in an embodiment of a first aspect of the present invention comprises pipeline assessment, water quality analysis, chemical scale inhibitor injection, mechanical cleaning, ultrasonic cleaning, electrochemical methods, periodic inspection and maintenance, and corrosion protection coating;
in the above embodiments, it should be noted that, the pipe evaluation performs water quality analysis while evaluating the scale degree and condition of the pipe, determines the type, composition and possible cause of scale formation in the pipe, and the water quality analysis results will guide the subsequent treatment steps and selection of the scale inhibitor, and based on the water quality analysis results, select a proper type and dosage of chemical scale inhibitor to be injected into the pipe to prevent the formation of scale or reduce the scale rate, and when the chemical scale inhibitor has a limited effect or is relatively refractory, physically remove scale in the pipe by mechanical cleaning or ultrasonic cleaning, periodically detect the state and scale degree of the pipe, and the condition of the anticorrosive coating;
the technical effects achieved by the embodiment are as follows: the method has the advantages of providing detailed information about the internal conditions and scaling characteristics of the pipeline, providing guidance for subsequent treatment steps, preventing or slowing down scaling, maintaining the smoothness of the pipeline, improving conveying efficiency, protecting the pipeline from corrosion and scaling by electrochemical means, prolonging the service life of the pipeline, discovering problems in advance and performing preventive maintenance, reducing sudden faults, guaranteeing the continuity of oilfield production, improving the corrosion resistance of the pipeline, reducing scaling risks and prolonging the service life of the pipeline.
Examples
As shown in fig. 1, a process for oil field pipeline scaling treatment comprises the whole content of the embodiment 1, in addition, the pipeline is evaluated to comprehensively evaluate the oil field pipeline before scaling treatment, including the material, diameter, length and operation condition information of the pipeline, and the water quality analysis is to analyze the water quality in oil field water injection, and know the components of salts, minerals and the like in the water to determine the main components of pipeline scaling.
The technical effects achieved by the embodiment are as follows: the method comprises the steps of providing detailed information of a pipeline, including structure, materials and running conditions, providing a foundation for formulating a targeted scale treatment scheme, determining main components of pipeline scale, providing a basis for selecting a proper scale inhibitor and taking corresponding cleaning measures, ensuring that the treatment scheme is specific to the specific pipeline characteristics and scale components, improving the effectiveness and sustainability of treatment, pertinently selecting the scale inhibitor, taking preventive measures, slowing down the occurrence of scale, improving the stability and reliability of the pipeline, realizing the targeted treatment scheme through detailed pipeline evaluation and water quality analysis, reducing the scale formation risk, improving the stability and maintainability of the pipeline, and further achieving the technical effects of improving the productivity, prolonging the service life of the pipeline, reducing the maintenance cost and the like.
Examples
As shown in fig. 1, a process for oilfield pipeline scale control comprises the whole content of the embodiment 2, in addition, the chemical scale inhibitor is injected into a component for scale in a pipeline, an appropriate chemical scale inhibitor is selected, scale substances are dissolved or dispersed by injecting into the pipeline to prevent the scale from further developing, the mechanical cleaning is carried out for relatively refractory scale by using high-pressure water jet equipment with a longer action distance, and the scale substances in the pipeline are physically removed by adopting an endoscope, and the ultrasonic cleaning is a non-invasive scale control method, and tiny bubbles can be generated in the pipeline by the action of ultrasonic waves, so that impact force is generated.
The technical effects achieved by the embodiment are as follows: through the injection conduit, the chemical scale inhibitor dissolves or disperses the scale forming material, preventing continued development of scale. The method is favorable for recovering the smoothness of the pipeline, improving the conveying efficiency, using high-pressure water jet equipment, having a longer acting distance, and an endoscope, physically removing scaling substances in the pipeline, effectively cleaning the pipeline, recovering the original drift diameter of the pipeline, reducing the flow resistance, improving the conveying efficiency, generating tiny bubbles in the pipeline through the action of ultrasonic waves, generating impact force, being favorable for dispersing and moving the scaling substances, and the method does not need to disassemble the pipeline, reduces the interference of a pipeline system, improves the convenience of operation, comprehensively adopts a chemical, mechanical and ultrasonic cleaning method, can provide more accurate and effective treatment for scaling of different types and degrees, can prolong the service life of the pipeline, reduce the maintenance frequency and improve the reliability of the whole oilfield conveying system.
Examples
As shown in fig. 1, a process for oilfield pipeline fouling management includes the whole content of example 3, and in addition, the electrochemical method includes anode and cathode protection and electrodialysis technology, the formation of the fouling is prevented or slowed down by the action of electric current, and the electric current and electric potential are monitored and regulated by adopting an automation technology to ensure proper level of electric current and electric potential so as to improve the management effect, and the periodic detection and maintenance are that after the fouling management, periodic pipeline detection is needed to ensure that the fouling problem is effectively controlled, and the anti-corrosion coating is applied on the surface of the pipeline, so that the occurrence of the fouling can be reduced.
The technical effects achieved by the embodiment are as follows: through positive pole and cathodic protection, can form the one deck protection film on the pipeline surface, prevent that scaling material from adhering to and depositing, slow down the formation of scale deposit, maintain the clean state of pipeline, through the effect of electric current, electrodialysis technique can change the distribution of aquatic solute, make scaling material more easily dispersed or remove, adopt the suitable level of automation technique monitoring electric current and electric potential, ensure the effective operation of electrochemical method, help improving treatment effect, make scaling control more accurate and controllable, in time discover potential problem, take necessary maintenance and repair measure, ensure that the pipeline system keeps in good running state for a long time, reduce harm and trouble risk because the scale deposit causes, anticorrosive coating can form the obstacle of one deck protectiveness, reduce scaling material adhesion on the pipeline surface, thereby slow down the development of scale deposit, improve corrosion resistance and the anti-scaling of pipeline.
Claims (8)
1. A process for treating scaling of oilfield pipelines is characterized in that: including pipe assessment, water quality analysis, chemical scale inhibitor injection, mechanical cleaning, ultrasonic cleaning, electrochemical methods, periodic inspection and maintenance, and corrosion protection coatings;
the pipeline assessment also carries out water quality analysis while assessing the scale formation degree and condition of the pipeline, determines the type, the components and the possible reason for forming the scale in the pipeline, the water quality analysis result guides the subsequent treatment step and the selection of the scale inhibitor, and based on the water quality analysis result, the chemical scale inhibitor with proper type and dosage is selected to be injected into the pipeline so as to prevent the formation of the scale or reduce the scale formation rate, and when the chemical scale inhibitor has limited effect or is more refractory to the scale, the scale in the pipeline is physically removed by adopting a mechanical cleaning or ultrasonic cleaning mode, and the state and the scale degree of the pipeline and the condition of the anticorrosive coating are periodically detected.
2. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the pipeline is evaluated as a comprehensive evaluation of oilfield pipelines prior to scale control, including pipeline material, diameter, length, and operating condition information.
3. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the water quality analysis is to analyze the water quality in the oilfield water injection, and know the salt and mineral components in the water to determine the main components of pipeline scaling.
4. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the chemical scale inhibitor is injected into a pipeline to form a scale, and a proper chemical scale inhibitor is selected to dissolve or disperse scale substances in the pipeline.
5. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the mechanical cleaning is to physically remove scale forming substances within the pipe using a high pressure water jet device with a longer working distance for more refractory scaling, and using an endoscope.
6. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the ultrasonic cleaning is a non-invasive scale treatment method, and tiny bubbles are generated in a pipeline through the action of ultrasonic waves.
7. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the electrochemical method comprises anode and cathode protection, electrodialysis technology, scaling formation is prevented or slowed down by the action of current, and automation technology is adopted for monitoring and adjustment.
8. A process for oilfield pipeline fouling abatement as defined in claim 1, wherein: the anti-corrosion coating is applied on the surface of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410049712.6A CN117823747A (en) | 2024-01-12 | 2024-01-12 | Oil field pipeline scaling treatment process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410049712.6A CN117823747A (en) | 2024-01-12 | 2024-01-12 | Oil field pipeline scaling treatment process |
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| Publication Number | Publication Date |
|---|---|
| CN117823747A true CN117823747A (en) | 2024-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410049712.6A Pending CN117823747A (en) | 2024-01-12 | 2024-01-12 | Oil field pipeline scaling treatment process |
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| Country | Link |
|---|---|
| CN (1) | CN117823747A (en) |
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- 2024-01-12 CN CN202410049712.6A patent/CN117823747A/en active Pending
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