CN110283577A - A kind of oil field dispersed fine particles gel adjusting control agent - Google Patents
A kind of oil field dispersed fine particles gel adjusting control agent Download PDFInfo
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- CN110283577A CN110283577A CN201910532904.1A CN201910532904A CN110283577A CN 110283577 A CN110283577 A CN 110283577A CN 201910532904 A CN201910532904 A CN 201910532904A CN 110283577 A CN110283577 A CN 110283577A
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- fine particles
- dispersed fine
- control agent
- adjusting control
- particles gel
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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
- C09K8/50—Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls
- C09K8/504—Compositions based on water or polar solvents
- C09K8/506—Compositions based on water or polar solvents containing organic compounds
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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
- C09K8/58—Compositions for enhanced recovery methods for obtaining hydrocarbons, i.e. for improving the mobility of the oil, e.g. displacing fluids
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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
- C09K2208/10—Nanoparticle-containing well treatment fluids
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a kind of oil field dispersed fine particles gel adjusting control agent, the dispersed fine particles gel adjusting control agent is the uniform dispersion aqueous phase solution of the ontology frozen glue that is formed by the ground different particle size distribution obtained after mechanical shearing acts on.The dispersed fine particles gel adjusting control agent provides the dispersed fine particles gel of different-grain diameter, intensity according to formation condition；The partial size of dispersed fine particles gel is divided into nano-dispersion fine grained gel partial size, micron order dispersed fine particles gel partial size and grade dispersed fine particles gel partial size.The dispersed fine particles gel adjusting control agent is adsorbed at macropore, is accumulated, and increases macropore flow resistance；It is blocked at pore throat, improves sweep efficiency.Dispersed fine particles gel adjusting control agent of the invention has dispersion, and injection is good rapidly, initial particle is controllable, high shear, it is environmental-friendly the features such as, there is the potential of application on oil field.
Description
Technical field
The present invention relates to oil development technical field, specifically a kind of oil field dispersed fine particles gel adjusting control agent.
Background technique
As oil field long-term injecting water is developed, oil field enters high water cut rate successively.Reservoir Heterogeneity is further exacerbated by.Oil
Hypertonic channel or macropore are gradually formed in layer, seriously affects reservoir water drive development effectiveness.Gather currently, traditional sealing agent utilizes
It closes object and crosslinking agent forms three dimensional gell network, obtained sealing agent injects low permeability reservoir difficult, resisting high temperature, high salt
Can be poor, viscosity is big, and endurance of cutting is poor, and stratum cross-linking effect and stability are poor, often will lead to closure failure, is not able to satisfy oil field
The needs of exploitation.
Summary of the invention
The present invention is exactly to provide a kind of oil field dispersed fine particles gel adjusting control agent to solve the deficiencies in the prior art.
The present invention is realized according to following technical scheme.
A kind of oil field dispersed fine particles gel adjusting control agent, the dispersed fine particles gel adjusting control agent are the sheet formed by ground
The uniform dispersion aqueous phase solution of body frozen glue different particle size distribution obtained after mechanical shearing acts on.
Further, the dispersed fine particles gel adjusting control agent provides the dispersion of different-grain diameter, intensity according to formation condition
Fine grained gel；The partial size of dispersed fine particles gel is divided into nano-dispersion fine grained gel partial size, micron order dispersed fine particles
Gel partial size and grade dispersed fine particles gel partial size.
Further, the dispersed fine particles gel adjusting control agent is adsorbed at macropore, is accumulated, and increases macropore flowing resistance
Power；It is blocked at pore throat, improves sweep efficiency.
Further, high revolving speed colloid mill provides mechanical shearing active force.
Present invention obtains following beneficial effects.
Dispersed fine particles gel (DMG) adjusting control agent particle diameter distribution of the invention is uniform, and regular shape, circularity is good, and nanometer is extremely
Grade is controllable；Dispersed fine particles gel adjusting control agent of the invention is resistant to 130 DEG C of high temperature, tolerance of salinity 170000mg/L；This hair
Bright dispersed fine particles gel adjusting control agent has dispersion, and injection is good rapidly, and initial particle is controllable, high shear, environment are friendly
The features such as good, has the potential of application on oil field.
Detailed description of the invention
Fig. 1 is dispersed fine particles gel adjusting control agent expansion coalescence performance experimental result picture of the present invention；
Fig. 2 is dispersed fine particles gel adjusting control agent viscosity experiment result figure of the present invention；
Fig. 3 is dispersed fine particles gel adjusting control agent electrical property experimental result picture of the present invention；
Fig. 4 be different-grain diameter of the present invention dispersed fine particles gel adjusting control agent in different permeability rock cores sealing ratiod result figure；
Fig. 5 is that dispersed fine particles gel adjusting control agent implantation concentration of the present invention influences evaluation figure；
Fig. 6 is dispersed fine particles gel adjusting control agent injection stage pressure variation of the present invention；
Fig. 7 is dispersed fine particles gel adjusting control agent field application experimental result picture of the present invention.
Specific embodiment
The present invention will be further described below in conjunction with the embodiments.
A kind of oil field dispersed fine particles gel adjusting control agent, the dispersed fine particles gel adjusting control agent are the sheet formed by ground
The uniform dispersion aqueous phase solution of body frozen glue different particle size distribution obtained after mechanical shearing acts on.
It is solidifying to provide different-grain diameter, the dispersed fine particles of intensity according to formation condition for the dispersed fine particles gel adjusting control agent
Glue；The partial size of dispersed fine particles gel is divided into nano-dispersion fine grained gel partial size, micron order dispersed fine particles gel partial size
With grade dispersed fine particles gel partial size.
The dispersed fine particles gel adjusting control agent is adsorbed at macropore, is accumulated, and increases macropore flow resistance；In pore throat
Place blocks, and improves sweep efficiency.
High revolving speed colloid mill provides mechanical shearing active force.
Embodiment 1: expansion coalescence performance
Inflatable 10 ~ 20 times of the coalescence of dispersed fine particles gel adjusting control agent of the present invention, limited expand of individual particle can avoid individual particle
Expansion multiple is excessively high to cause granule strength to reduce；The Effective Regulation to macropore can be achieved in more particle coalescences (referring to Fig. 1).
Embodiment 2: dispersion stabilization
For the stability kinetic index TSI value of dispersed fine particles gel adjusting control agent of the present invention less than 3, dispersion stabilization is preferable.
Embodiment 3: viscosity
Dispersed fine particles gel adjusting control agent of the present invention (70 DEG C) aggregations at high temperature, form larger particles, particles' interaction
Power reduces, and viscosity reduces.But range of decrease degree is little, shows dispersed fine particles gel adjusting control agent better heat stability (referring to fig. 2).
Embodiment 4: electrically
With ageing time, Zeta potential absolute value increases dispersed fine particles gel adjusting control agent of the present invention, system tend towards stability (referring to
Fig. 3).
Embodiment 5: permeability influences evaluation
Sealing characteristics of 1 present invention of table to different permeability rock cores (partial size is 2.1 μm)
DMG solution can block the rock core of 200-3000 mD, and seal-off effect is preferable.
When in-place permeability is less than 2.43 μm2(being applicable in nano-dispersion fine grained gel adjusting control agent)；Less than 6.8 μm2It is (suitable
With micron order dispersed fine particles gel adjusting control agent)；Less than 18.9 μm2(being applicable in grade dispersed fine particles gel adjusting control agent), tool
There is preferable sealing characteristics (referring to fig. 4).
Embodiment 6: implantation concentration influences evaluation
There are optimal use concentration, according to stratum actual conditions, select suitable concentration dispersed fine particles gel adjusting control agent (referring to
Temperature: Fig. 5 130 DEG C, injects 800 nm of grain diameter, injection rate 1PV).
Embodiment 7: the injection and closure of particular reservoir
In order to which more really the transfer drive well operations situation of simulation sand control completion, the present invention arrange sieve in the injection end of fill out sand tube
Net, screen mesh size are 200 mesh (75 μm).
Injection stage, dispersed fine particles gel adjusting control agent injection pressure slowly steadily rise to 0.077MPa；Phase after aging
Mutually aggregation, can migrate to fill out sand tube middle and back, form indepth plugging (referring to Fig. 6,1%, 1300mD, 800 nm of partial size).
To sum up, dispersed fine particles gel adjusting control agent of the present invention:
(1) it is suitable for all kinds of salinity reservoirs, salt tolerant to 170,000 mg/L；
(2) 50 DEG C -130 DEG C of reservoir temperature；
(3) reservoir permeability 200-5000 mD is good in the injection of middle low permeability reservoir (200-1000 mD)；
(4) oil saturation is greater than 40%；
(5) underground crude oil viscosity is lower than 500mPa s；
(6) oil-water well corresponding relationship is clear, the strong oil reservoir of heterogeneity；
(7) system of different-grain diameter and intensity can be matched according to live formation condition.
Embodiment 8: field application
The present invention carries out experiment, Injection Section cock body product in the western 27-14 of the selection Changqing oilfields of in September, 2015, western 27-16 well group
6000m3, by the end of in July, 2016, add up to increase oil 1439.7t(referring to Fig. 7).
While there has been shown and described that embodiments herein, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle and objective of the application, this
The range of application is defined by the claims and their equivalents.
Claims (4)
1. a kind of oil field dispersed fine particles gel adjusting control agent, which is characterized in that the dispersed fine particles gel adjusting control agent is by ground
The uniform dispersion aqueous phase solution of the ontology frozen glue that face is formed different particle size distribution obtained after mechanical shearing acts on.
2. a kind of oil field dispersed fine particles gel adjusting control agent according to claim 1, it is characterised in that: thin of the dispersion
Grain gel adjusting control agent provides the dispersed fine particles gel of different-grain diameter, intensity according to formation condition；The grain of dispersed fine particles gel
Diameter is divided into nano-dispersion fine grained gel partial size, micron order dispersed fine particles gel partial size and grade dispersed fine particles gel
Partial size.
3. a kind of oil field dispersed fine particles gel adjusting control agent according to claim 1, it is characterised in that: thin of the dispersion
Grain gel adjusting control agent is adsorbed at macropore, is accumulated, and increases macropore flow resistance；It is blocked at pore throat, improves sweep efficiency.
4. a kind of oil field dispersed fine particles gel adjusting control agent according to claim 1, it is characterised in that: high revolving speed colloid is ground
Grinding machine provides mechanical shearing active force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910532904.1A CN110283577A (en) | 2019-06-19 | 2019-06-19 | A kind of oil field dispersed fine particles gel adjusting control agent |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910532904.1A CN110283577A (en) | 2019-06-19 | 2019-06-19 | A kind of oil field dispersed fine particles gel adjusting control agent |
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| CN110283577A true CN110283577A (en) | 2019-09-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936490A (en) * | 2012-11-13 | 2013-02-20 | 中国石油大学(华东) | Preparation method of environment-friendly multi-scale zirconium gel dispersion plugging agent |
| WO2016084032A1 (en) * | 2014-11-28 | 2016-06-02 | Ecopetrol S.A. | Formulations of colloidal dispersion gels and surfactants for the improved recovery of petroleum and method of obtaining these formulations |
| CN106047324A (en) * | 2016-06-30 | 2016-10-26 | 中国石油大学(华东) | Reinforced gel dispersion deep profile control and flooding agent for low-permeability high-temperature high-salt oil reservoirs |
| CN108300440A (en) * | 2018-02-09 | 2018-07-20 | 中国石油大学(华东) | Ontology jelly system that frozen glue dispersion nano-graphite breast is strengthened and combinations thereof and preparation method and application |
-
2019
- 2019-06-19 CN CN201910532904.1A patent/CN110283577A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102936490A (en) * | 2012-11-13 | 2013-02-20 | 中国石油大学(华东) | Preparation method of environment-friendly multi-scale zirconium gel dispersion plugging agent |
| WO2016084032A1 (en) * | 2014-11-28 | 2016-06-02 | Ecopetrol S.A. | Formulations of colloidal dispersion gels and surfactants for the improved recovery of petroleum and method of obtaining these formulations |
| CN106047324A (en) * | 2016-06-30 | 2016-10-26 | 中国石油大学(华东) | Reinforced gel dispersion deep profile control and flooding agent for low-permeability high-temperature high-salt oil reservoirs |
| CN108300440A (en) * | 2018-02-09 | 2018-07-20 | 中国石油大学(华东) | Ontology jelly system that frozen glue dispersion nano-graphite breast is strengthened and combinations thereof and preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| 姜亦栋等主编: "《聚合物弹性微球深部调驱技术与矿场实践》", 30 April 2018, 中国石油大学出版社 * |
| 崔洁: "锆冻胶分散体调驱剂的制备与性能评价", 《油田化学》 * |
| 戴彩丽等: "弹性冻胶分散体与孔喉匹配规律及深部调控机理", 《石油学报》 * |
| 赵光等: "多尺度冻胶分散体的制备机理", 《石油学报》 * |
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