CN111394029A - Oil field pipeline joint adhesive and preparation method and application thereof - Google Patents
Oil field pipeline joint adhesive and preparation method and application thereof Download PDFInfo
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- CN111394029A CN111394029A CN202010241851.0A CN202010241851A CN111394029A CN 111394029 A CN111394029 A CN 111394029A CN 202010241851 A CN202010241851 A CN 202010241851A CN 111394029 A CN111394029 A CN 111394029A
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- pipeline
- mass percent
- glass fiber
- quartz sand
- main material
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J163/00—Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention belongs to the technical field of bonding glue, and discloses bonding glue for an oil field pipeline joint, and a preparation method and application thereof. The oilfield pipeline joint adhesive consists of 85 mass percent of main material, 10 mass percent of quartz sand and 5 mass percent of glass fiber, wherein the main material consists of epoxy resin, an accelerator and a curing agent in a mass ratio of 100:1: 1; or the material consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber, wherein the main material consists of epoxy resin, a setting accelerator and a curing agent in a mass ratio of 100:3: 3; the epoxy resin is unsaturated polyester resin 196#, the accelerator is JT-II liquid accelerator, and the curing agent is DP-8850 water-based epoxy curing agent.
Description
Technical Field
The invention belongs to the technical field of bonding glue, and particularly relates to bonding glue for an oil field pipeline joint, and a preparation method and application thereof.
Background
At present, oil transportation pipelines and water injection pipelines used in various large oil fields are mostly glass fiber reinforced plastic pipelines, clay scales in the pipelines are formed in a high-pressure environment for a long time, compact layering is obvious, and calcium magnesium scales and iron salt scales are frameworks for supporting the clay. Due to the fact that the service life is long, corrosion of different degrees exists, and the pipeline is subjected to pressure holding due to the fact that the water injection pressure changes, the switching process is frequent and the like in actual production, so that the glass fiber reinforced plastic pipeline which is corroded seriously is broken. The conventional disposal method is to replace a new pipeline, so that the generated cost is high, the construction time is long, and the adverse effect on normal oil field production is great. Therefore, it is highly desirable to develop a pipeline joint adhesive which can change the conventional disposal method, and is fast, timely, safe and environment-friendly.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention mainly aims to provide an oil field pipeline joint adhesive.
The invention further aims to provide a preparation method of the oil field pipeline joint adhesive.
The invention also aims to provide application of the oilfield pipeline joint adhesive.
The purpose of the invention is realized by the following technical scheme:
the oilfield pipeline joint adhesive consists of 85 mass percent of main material, 10 mass percent of quartz sand and 5 mass percent of glass fiber, wherein the main material consists of epoxy resin, a setting accelerator and a curing agent in a mass ratio of 100:1: 1; or the material consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber, wherein the main material consists of epoxy resin, a setting accelerator and a curing agent in a mass ratio of 100:3: 3;
the epoxy resin is unsaturated polyester resin 196#, the accelerator is JT-II liquid accelerator, and the curing agent is DP-8850 water-based epoxy curing agent.
The quartz sand is 20-mesh quartz sand, and the glass fiber is 15mm glass fiber.
The preparation method of the oil field pipeline joint adhesive comprises the following steps: and (3) firstly adding epoxy resin, then adding an accelerating agent, then adding a curing agent, fully and uniformly stirring, finally adding quartz sand and glass fiber, and uniformly stirring to obtain the oilfield pipeline joint bonding glue.
The application of the oilfield pipeline joint adhesive in oilfield pipeline connection comprises the following steps: cleaning pipelines to be bonded in an oil field; cutting off the pipe, and cleaning the cut of the pipeline to be bonded; cleaning a quick joint of a pipeline to be bonded; uniformly coating the oilfield pipeline joint adhesive on the quick joint of the pipeline to be adhered and the pipeline to be adhered; aligning the quick connector of the pipeline to be bonded with the original pipeline, and performing screw thread connection after 2 h; insulating the bonding joint by using an insulating material; after heat preservation, the bonding glue of the oilfield pipeline joint is completely solidified and is seamlessly connected with the quick joint of the pipeline to be bonded and the pipeline to be bonded, and the temperature is kept hot for 20 minutes.
When the temperature is higher than 25 ℃, using an oil field pipeline joint adhesive composed of a main material with the mass fraction of 85%, quartz sand with the mass fraction of 10% and glass fiber with the mass fraction of 5%; when the temperature is lower than 25 ℃, the oil field pipeline joint adhesive consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber.
The principle of the invention is as follows:
the inventor uses different bonding materials to compare the effects through multiple tests (about 6 months) on site according to the glass fiber reinforced plastic pipeline used in the oil field site, and finally obtains the experimental result: the best effect is that the pipeline adhesive glue of different materials is synthesized by unsaturated polyester resin 196# and JT-II liquid accelerating agent (the JT-II liquid accelerating agent is alumina which is a matched product of pipeline adhesive technology and has the characteristic of small dust rebound rate), DP-8850 water-based epoxy curing agent (which leads the unsaturated polyester resin 196#, JT-II liquid accelerating agent and pipelines to be adhered to be cured and connected) and other materials. Meanwhile, according to the actual situation on site, other auxiliary materials in variable quantities are added while the pipeline adhesive is prepared.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) the method for treating the pipeline fracture by using the oil field pipeline joint adhesive glue is quicker and more economical than the conventional treatment method, saves a large amount of mechanical and labor cost, reduces the range of pipeline excavation operation pits, furthest reduces the environmental pollution caused by pipeline fracture, ensures that the fracture point can be quickly recovered, greatly shortens the pipeline fracture treatment period, reduces the production stop time, and ensures the normal operation of production
(2) The oil field pipeline joint adhesive can combine different materials together. Moreover, when bonding two metals, the pipe bonding glue can separate them from corrosion; when the coefficients of thermal expansion of the two adherends are very different, the flexible pipe line adhesive reduces the attraction force due to temperature changes; the performance of the laminate of dissimilar materials is superior to that of any bonded material.
(3) When the oil field pipeline joint adhesive provided by the invention is used for treating pipeline breakage, the adhesive line can play a role of a moisture barrier.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
The raw materials used in the following examples:
unsaturated polyester resin 196# was purchased from Xinyang science and technology group, Inc.;
JT-II liquid accelerators were purchased from Hunan Jintai concrete admixtures, Inc.;
DP-8850 waterborne epoxy hardener is available from Xinyang science and technology group, Inc.
Example 1
The oilfield pipeline joint adhesive consists of 85 mass percent of main material, 10 mass percent of quartz sand and 5 mass percent of glass fiber, wherein the main material consists of unsaturated polyester resin 196#, JT-II liquid accelerator and DP-8850 aqueous epoxy curing agent in a mass ratio of 100:1: 1;
the oil field pipeline joint adhesive is prepared according to the following steps: adding 196# unsaturated polyester resin, JT-II liquid accelerator, DP-8850 water-based epoxy curing agent, stirring, adding quartz sand and glass fiber, and stirring to obtain the final product.
Example 2
An oilfield pipeline joint adhesive consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber, wherein the main material consists of unsaturated polyester resin 196#, JT-II liquid accelerator and DP-8850 aqueous epoxy curing agent in a mass ratio of 100:3: 3;
the oil field pipeline joint adhesive is prepared according to the following steps: adding 196# unsaturated polyester resin, JT-II liquid accelerator, DP-8850 water-based epoxy curing agent, stirring, adding quartz sand and glass fiber, and stirring to obtain the final product.
The following examples 3-5 are the application of the oilfield pipeline joint adhesive of the present invention in oilfield pipeline connection, and the application specifically comprises the following steps: cleaning pipelines to be bonded in an oil field; cutting off the pipe, and cleaning the cut of the pipeline to be bonded; cleaning a quick joint of a pipeline to be bonded; uniformly coating the oilfield pipeline joint adhesive on the quick joint of the pipeline to be adhered and the pipeline to be adhered; aligning the quick connector of the pipeline to be bonded with the original pipeline, and performing screw thread connection after 2 h; insulating the bonding joint by using an insulating material; after heat preservation, the bonding glue of the oilfield pipeline joint is completely solidified and is seamlessly connected with the quick joint of the pipeline to be bonded and the pipeline to be bonded, and the temperature is kept hot for 20 minutes.
Example 3
In 2016 to 2019, 200 sets of DN50 pipeline joints, 168 sets of DN80 pipeline joints, 143 sets of DN100 pipeline joints, 100 sets of DN150 pipeline joints and 88 sets of DN200 pipeline joints are bonded on each well zone of the land-beam oil field by using the oil field pipeline joint bonding glue obtained in the examples 1 and 2, the oil field pipeline joint bonding glue obtained in the example 1 is used when the temperature is higher than 25 ℃, and the oil field pipeline joint bonding glue obtained in the example 2 is used when the temperature is lower than 25 ℃. All the bonded pipeline joints are put into use after the pressure test is qualified, normal water injection is kept from the beginning of recovering the normal water injection to the present, no damage and leakage phenomena exist midway, and the water injection is consistent with the water injection of the original pipeline.
Example 4
In the Shixi oil field in 2017 to 2019, the oil field pipeline joint adhesive glue obtained in the examples 1 and 2 is used for adhering 160 sleeves of DN50 pipeline joints, 83 sleeves of DN80 pipeline joints, 66 sleeves of DN100 pipeline joints, 50 sleeves of DN150 pipeline joints and 50 sleeves of DN200 pipeline joints, the oil field pipeline joint adhesive glue obtained in the example 1 is used when the temperature is higher than 25 ℃, and the oil field pipeline joint adhesive glue obtained in the example 2 is used when the temperature is lower than 25 ℃. All the bonded pipeline joints are put into use after the pressure test is qualified, normal water injection is kept from the beginning of recovering the normal water injection to the present, no damage and leakage phenomena exist midway, and the water injection is consistent with the water injection of the original pipeline.
Example 5
In the Sannan operating area of the oil production plant in the east China between 2017 and 2019, 300 sets of DN50 pipeline joints, 77 sets of DN80 pipeline joints, 50 sets of DN100 pipeline joints, 50 sets of DN150 pipeline joints and 35 sets of DN200 pipeline joints are bonded by using the oilfield pipeline joint bonding glue obtained in the examples 1 and 2, the oilfield pipeline joint bonding glue obtained in the example 1 is used when the temperature is higher than 25 ℃, and the oilfield pipeline joint bonding glue obtained in the example 2 is used when the temperature is lower than 25 ℃. All the bonded pipeline joints are put into use after the pressure test is qualified, normal water injection is kept from the beginning of recovering the normal water injection to the present, no damage and leakage phenomena exist midway, and the water injection is consistent with the water injection of the original pipeline.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (5)
1. The utility model provides an oil field pipeline connects adhesive which characterized in that: the oilfield pipeline joint adhesive consists of 85 mass percent of main material, 10 mass percent of quartz sand and 5 mass percent of glass fiber, wherein the main material consists of epoxy resin, an accelerator and a curing agent in a mass ratio of 100:1: 1; or the material consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber, wherein the main material consists of epoxy resin, a setting accelerator and a curing agent in a mass ratio of 100:3: 3;
the epoxy resin is unsaturated polyester resin 196#, the accelerator is JT-II liquid accelerator, and the curing agent is DP-8850 water-based epoxy curing agent.
2. The oilfield pipeline joint adhesive of claim 1, wherein: the quartz sand is 20-mesh quartz sand, and the glass fiber is 15mm glass fiber.
3. The preparation method of the oilfield pipeline joint adhesive according to claim 1, characterized by comprising the following steps: and (3) firstly adding epoxy resin, then adding an accelerating agent, then adding a curing agent, fully and uniformly stirring, finally adding quartz sand and glass fiber, and uniformly stirring to obtain the oilfield pipeline joint bonding glue.
4. The application of the oilfield pipeline joint adhesive glue in oilfield pipeline connection according to claim 1, wherein the adhesive glue is characterized in that: the application comprises the following steps: cleaning pipelines to be bonded in an oil field; cutting off the pipe, and cleaning the cut of the pipeline to be bonded; cleaning a quick joint of a pipeline to be bonded; uniformly coating the oilfield pipeline joint adhesive on the quick joint of the pipeline to be adhered and the pipeline to be adhered; aligning the quick connector of the pipeline to be bonded with the original pipeline, and performing screw thread connection after 2 h; and (3) insulating the bonding joint by using an insulating material, completely solidifying the bonding glue of the oilfield pipeline joint after insulation, and seamlessly connecting the bonding glue with the quick coupling of the pipeline to be bonded and the pipeline to be bonded, wherein the temperature is kept hot for 20 minutes.
5. Use according to claim 4, characterized in that: when the temperature is higher than 25 ℃, using an oil field pipeline joint adhesive composed of a main material with the mass fraction of 85%, quartz sand with the mass fraction of 10% and glass fiber with the mass fraction of 5%; when the temperature is lower than 25 ℃, the oil field pipeline joint adhesive consists of 75 mass percent of main material, 15 mass percent of quartz sand and 10 mass percent of glass fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241851.0A CN111394029A (en) | 2020-03-31 | 2020-03-31 | Oil field pipeline joint adhesive and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010241851.0A CN111394029A (en) | 2020-03-31 | 2020-03-31 | Oil field pipeline joint adhesive and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111394029A true CN111394029A (en) | 2020-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010241851.0A Pending CN111394029A (en) | 2020-03-31 | 2020-03-31 | Oil field pipeline joint adhesive and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111394029A (en) |
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2020
- 2020-03-31 CN CN202010241851.0A patent/CN111394029A/en active Pending
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