CN109439301A - Cleaning agent suitable for drilling well packing phenolic resin - Google Patents
Cleaning agent suitable for drilling well packing phenolic resin Download PDFInfo
- Publication number
- CN109439301A CN109439301A CN201811424040.3A CN201811424040A CN109439301A CN 109439301 A CN109439301 A CN 109439301A CN 201811424040 A CN201811424040 A CN 201811424040A CN 109439301 A CN109439301 A CN 109439301A
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- CN
- China
- Prior art keywords
- phenolic resin
- pumped
- polyethylene glycol
- cleaning agent
- drilling well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- 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
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
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- 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)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a kind of cleaning agents suitable for drilling well packing phenolic resin to be pumped into polyethylene glycol 400 by polyethylene glycol 400 directly as cleaning solution after being pumped into phenolic resin, and the polyethylene glycol 400 amount of being pumped into, which is not less than, is pumped into the 5% of phenolic resin quality.The present invention can effectively clean phenolic resin class sealing agent, and phenolic resin is avoided to form residual in the borehole wall to influence subsequent construction operation.
Description
Technical field
The present invention relates to a kind of cleaning agents suitable for drilling well packing phenolic resin, belong to the oilfield chemistry neck of petroleum industry
Domain.
Background technique
In drilling well or Completion Operations, since down-hole plugging is needed using phenolic resin gellike, since phenolic resin is easy
It adsorbs to form film to influence the construction operation of subsequent fluid especially drilling fluid in the borehole wall, this film is difficult clearly at present
It washes, it is general to be rinsed using the drilling fluid of high speed.
With the continuous expansion of drilling well scale under complex geological condition, the demand that underground acts on phenolic resin as packing
Increasing, the risk of the failure of brought subsequent construction operation is also more next after borehole wall residual during transportation for phenolic resin
It is higher, need the phenolic resin cleaning agent that exploitation remains in the borehole wall.
Summary of the invention
It is an object of the invention to overcome the above problem of the existing technology, provide a kind of suitable for drilling well packing phenolic aldehyde
The cleaning agent of resin.The present invention can effectively clean phenolic resin class sealing agent, avoid phenolic resin in borehole wall shape
At residual to influence subsequent construction operation.
To achieve the above object, The technical solution adopted by the invention is as follows:
A kind of cleaning agent suitable for drilling well packing phenolic resin, it is characterised in that: by polyethylene glycol 400 directly as cleaning
Liquid is pumped into polyethylene glycol 400 after being pumped into phenolic resin, and the polyethylene glycol 400 amount of being pumped into, which is not less than, is pumped into phenolic resin quality
5%。
In the method, the aqueous solution that polyethylene glycol 400 is configured to concentration 20 ~ 50% is being pumped into phenolic aldehyde as cleaning solution
It is pumped into after resin, the polyethylene glycol 400 aqueous solution amount of being pumped into, which is not less than, is pumped into the 10% of phenolic resin amount.
In the method, polyethylene glycol 400 is formulated into drilling fluid, polyethylene glycol 400 concentration is that 20 ~ 50% formation are bored
The mixed solution of well liquid and polyethylene glycol 400 is pumped into after being pumped into phenolic resin as cleaning solution, drilling fluid and polyethylene glycol
The 400 mixed solution amount of being pumped into, which is not less than, is pumped into the 10% of phenolic resin amount.
Using the present invention has the advantages that
1, phenolic resin class cleaning agent of the invention can effectively solve the residual in phenolic resin transmission process in the borehole wall, be conducive to
Subsequent well and cementing operation operation, bring operating risk due to avoiding the residual because of phenolic resin in the borehole wall.
2, the cleaning agent can be miscible with water and drilling fluid, is conducive to the compatibility of extemporaneous preparation and work on the spot liquid.
3, the cleaning agent has certain temperature resistance, and temperature resistance is up to 120 DEG C.
4, the cleaning agent can be pumped into the cleaning agent after pump injects phenolic resin again, can effectively remove the phenolic aldehyde tree of the borehole wall
Rouge residual film.
5, phenolic resin has good purposes in packing and Process of Leaking Stoppage, and many performances are even better than cement, still
Since phenolic resin is easy to remain in the borehole wall during transportation, it is unfavorable for subsequent well and anchorage.The present invention can be right
Phenolic resin class sealing agent is effectively cleaned, and is avoided phenolic resin from forming residual in the borehole wall and is made to influence subsequent construction
Industry.
6, with the continuous expansion of drilling well scale under complex geological condition, the need that underground acts on phenolic resin as packing
Ask increasing, phenolic resin during transportation also get over after borehole wall residual by the risk of the failure of brought subsequent construction operation
Come higher, which can remove the phenolic resin for remaining in the borehole wall, avoid the risk of subsequent construction.
Specific embodiment
Embodiment 1
Alcohol-soluble phenolic resin sample A, viscosity can form long wire drawing up to 257mpa.s, it is total that 20%(phenolic resin is added
Mass Calculation) polyethylene glycol 400 after phenolic resin sample A viscosity be 35 mpa.s, be unable to wire drawing.
Embodiment 2
Alcohol-soluble phenolic resin sample B, viscosity can form long wire drawing up to 382mpa.s, it is total that 20%(phenolic resin is added
Mass Calculation) polyethylene glycol 400 after phenolic resin sample B viscosity be 47 mpa.s, be unable to wire drawing.
Embodiment 3
Water soluble phenol resin sample C, viscosity can form long wire drawing up to 187mpa.s, it is total that 30%(phenolic resin is added
Mass Calculation) polyethylene glycol 400 aqueous solution (polyethylene glycol 400 aqueous solution effective concentration be 40%, it is water-soluble with polyethylene glycol 400
Liquid gross mass calculate) afterwards phenolic resin sample C viscosity be 54mpa.s, be unable to wire drawing.
Embodiment 4
Water soluble phenol resin sample D, viscosity can form long wire drawing up to 287mpa.s, it is total that 30%(phenolic resin is added
Mass Calculation) polyethylene glycol 400 aqueous solution (polyethylene glycol 400 concentration of aqueous solution be 40%, it is total with polyethylene glycol 400 aqueous solution
Mass Calculation) afterwards phenolic resin sample C viscosity be 76mpa.s, can hardly wire drawing.
Embodiment 5
Block or during leak stopping well operations needing to be pumped into phenolic resin, after being pumped into phenolic resin after operation, due to
Phenolic resin is easy to form adsorbed film influence subsequent construction operation in tube wall, therefore is pumped into cleaning solution pair before carrying out lower step operation
Tube wall is cleaned.
A kind of cleaning agent suitable for drilling well packing phenolic resin, comprising: by polyethylene glycol 400 directly as cleaning solution,
Polyethylene glycol 400 is pumped into after being pumped into phenolic resin, the polyethylene glycol 400 amount of being pumped into, which is not less than, is pumped into the 5% of phenolic resin quality.
In the method, the aqueous solution that polyethylene glycol 400 is configured to concentration 20 ~ 50% is being pumped into phenolic aldehyde as cleaning solution
It is pumped into after resin, the polyethylene glycol 400 aqueous solution amount of being pumped into, which is not less than, is pumped into the 10% of phenolic resin amount.
In the method, polyethylene glycol 400 is formulated into drilling fluid, polyethylene glycol 400 concentration is that 20 ~ 50% formation are bored
The mixed solution of well liquid and polyethylene glycol 400 is pumped into after being pumped into phenolic resin as cleaning solution, drilling fluid and polyethylene glycol
The 400 mixed solution amount of being pumped into, which is not less than, is pumped into the 10% of phenolic resin amount.
Claims (3)
1. a kind of cleaning agent suitable for drilling well packing phenolic resin, it is characterised in that: by polyethylene glycol 400 directly as cleaning
Liquid is pumped into polyethylene glycol 400 after being pumped into phenolic resin, and the polyethylene glycol 400 amount of being pumped into, which is not less than, is pumped into phenolic resin quality
5%。
2. the cleaning agent according to claim 1 suitable for drilling well packing phenolic resin, it is characterised in that: the method
In, the aqueous solution that polyethylene glycol 400 is configured to concentration 20 ~ 50% is pumped into after being pumped into phenolic resin as cleaning solution, poly- second
The 400 aqueous solution amount of being pumped into of glycol, which is not less than, is pumped into the 10% of phenolic resin amount.
3. the cleaning agent according to claim 1 suitable for drilling well packing phenolic resin, it is characterised in that: the method
In, polyethylene glycol 400 is formulated into drilling fluid, polyethylene glycol 400 concentration is 20 ~ 50% formation drilling fluids and polyethylene glycol 400
Mixed solution as cleaning solution, be pumped into after being pumped into phenolic resin, the mixed solution amount of being pumped into of drilling fluid and polyethylene glycol 400
Not less than being pumped into the 10% of phenolic resin amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424040.3A CN109439301A (en) | 2018-11-27 | 2018-11-27 | Cleaning agent suitable for drilling well packing phenolic resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811424040.3A CN109439301A (en) | 2018-11-27 | 2018-11-27 | Cleaning agent suitable for drilling well packing phenolic resin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109439301A true CN109439301A (en) | 2019-03-08 |
Family
ID=65555579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811424040.3A Pending CN109439301A (en) | 2018-11-27 | 2018-11-27 | Cleaning agent suitable for drilling well packing phenolic resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109439301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111849437A (en) * | 2019-04-26 | 2020-10-30 | 中国石油化工股份有限公司 | Pretreating agent for water-containing stratum plugging and preparation method and application thereof |
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| CN101220195A (en) * | 2008-01-28 | 2008-07-16 | 郑州大学 | Phenolic resin containing nano-carbon powder, nano-carbon modified low carbon magnesium carbon brick and production method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111849437A (en) * | 2019-04-26 | 2020-10-30 | 中国石油化工股份有限公司 | Pretreating agent for water-containing stratum plugging and preparation method and application thereof |
| CN111849437B (en) * | 2019-04-26 | 2023-04-11 | 中国石油化工股份有限公司 | Pretreating agent for water-containing stratum plugging and preparation method and application thereof |
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Application publication date: 20190308 |
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