CN102838975A - Sand-proof consolidation agent - Google Patents
Sand-proof consolidation agent Download PDFInfo
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- CN102838975A CN102838975A CN2011101708733A CN201110170873A CN102838975A CN 102838975 A CN102838975 A CN 102838975A CN 2011101708733 A CN2011101708733 A CN 2011101708733A CN 201110170873 A CN201110170873 A CN 201110170873A CN 102838975 A CN102838975 A CN 102838975A
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Abstract
The present invention discloses a sand-proof consolidation agent, which comprises a feldspar sand core, a cement clinker, and a resin solution, wherein the sand-proof consolidation agent is the particle prepared by coating the cement clinker-rich resin film on the surface of the feldspar sand core, and presents a loose state at a room temperature, no adhesion is generated between the particles, a mass ratio of the resin solution to the cement clinker to the feldspar sand core is 20:100:200, the resin solution contains an unsaturated polyester resin, a curing agent, an organic silane coupling agent, a polymerization inhibitor and a diluent, and a mass ratio of the unsaturated polyester resin to the curing agent to the organic silane coupling agent to the polymerization inhibitor to the diluent is 100:4:1:1:20. In the prior art, water injection development at a middle-later period of oil field development can cause a low well temperature (30-50 DEG C), and the original chemical sand-proof products do not have a high consolidation strength. According to oil-water well sand prevention measures adopting the sand-proof consolidation agent of the present invention, the problem of sand production in the oil well is solved, and advantages of simple process, easy grasping, safety, reliability, and ideal effect are provided.
Description
Technical field
The present invention relates to a kind of sand control solidifying agent, relate in particular to a kind of sand control solidifying agent of in the oil and water well sand control measure, using, belong to the oil recovery technical field of chemistry.
Background technology
Though the geologic feature of loose sand oil accumulation has difference, its principal character is close, is shallow in burial, poor diagenetic grade; Loose cementation, shale index is high, and it is big vertically to reach plane difference, serious heterogeneity; Underground oil water relation is complicated, and especially the oil field gets into development phase middle and later periods, improves the main means of production that water filling and big pump extract become oil-field development; Because a large amount of entering of injecting water the phenomenon that reservoir temperature progressively reduces will inevitably occur like this, its result must aggravate the contradiction of sand and water.
Sand control technique is one of major measure of understressed sand stable yields raising the output; The sand control technique personnel combine the characteristics of oil field loose sand oil accumulation, have developed multiple anti-sand process technology, have solved the problem of shaking out of different development phases; But at present loose sand oil accumulation enters into big area waterflooding period; Reservoir temperature generally reduces (30 ℃～50 ℃), and therefore artificial borehole wall class sand control products such as solution-type sand control product such as original resin solution, sand-fixing agent and the preparatory burnt-in sand of plastics are because well temperature reason of lower; Original chemical consolidated sand agent consolidation strength is not high, and consolidation strength is affected and solves the oil and water well problem of shaking out.
Summary of the invention
In order to solve above-mentioned reservoir temperature (30 ℃～50 ℃) the on the low side oil and water well problem of shaking out; The present invention provides a kind of oil and water well sand control to use the sand control solidifying agent; Use this sand control solidifying agent product and use the oil and water well sand control measure of this sand control solidifying agent; Solving the oil-field development middle and later periods causes the well temperature on the low side because of waterflooding, the not high oil and water well of the original chemical consolidated sand agent consolidation strength problem of shaking out.
The technical scheme that the present invention adopts is: sand control solidifying agent of the present invention comprises the feldspar core, and cement clinker and resin solution, this sand control solidifying agent are the particle that the resin molding that is rich in cement clinker is coated on the feldspathic sand wicking surface.
In the above-mentioned sand control solidifying agent, the mass ratio of said resin solution, cement clinker and feldspar core is 20: 100: 200.Said resin is a unsaturated polyester resin; Said cement clinker is a Portland clinker; Said feldspathic sand slug particle particle diameter is 0.5-1.2mm.
In the above-mentioned resin solution; Contain unsaturated polyester resin, solidifying agent, organo silane coupling agent, stopper and thinner, and the mass ratio of said unsaturated polyester resin, solidifying agent, organo silane coupling agent, stopper and thinner is 100: 4: 1: 1: 20.Said solidifying agent is a copper peroxide.Said organo silane coupling agent is KH-550 or KH-570.Said stopper is any in Resorcinol, p-ten.-butylcatechol and the phenyl aldehyde.Said thinner is a methyl alcohol.
Said sand control solidifying agent particulate degree of sphericity is more than 0.6, and grain diameter is 0.7mm～1.4mm.
The invention has the beneficial effects as follows: adopt technique scheme; This sand control solidifying agent solves oil-field development middle and later periods and causes the well temperature on the low side because of waterflooding, the not high oil and water well of the original chemical sand control product consolidation strength problem of shaking out, and technology is simple; Be easy to grasp, safe and reliable, satisfactory for result.
Embodiment
Below in conjunction with embodiment the present invention is described further:
The present invention be a kind of self can be fixed have the feldspathic sand slug particle and be coated on the resin-coated membrane granule that is rich in Portland clinker on feldspathic sand slug particle surface, be loose condition (of surface) under the normal temperature, adhesion mutually between particle.Adopt water-base carrier fluid during construction; The sand control solidifying agent is carried into the oil reservoir position; Utilize the glued interaction between component that discharges in the resin-coated film, fixed under FT, shutoff is because of injecting the formed macropore of water at the bottom of water or the limit; Formation has the artificial borehole wall of certain intensity, satisfies low temperature oil and water well sand control demand.
In order to further specify this sand control solidifying agent implementation result, a kind of this product compound method is provided.
Preparation resin solution: the 100g unsaturated polyester resin is added whisking appliance, begin to stir, add 4g solidifying agent copper peroxide subsequently; Continue to stir, add the 1g organo-silicon coupling agent afterwards, then; Add the 1g hydroquinone of polymerization retarder, add 20g thinner methyl alcohol at last, it is for use to stir into homogeneous solution.
Mix the core cement clinker: with the 1000g particle diameter is that 0.5mm～1.2mm feldspar core is put into sand mill and begun to stir, and afterwards, takes by weighing the resin solution 100g that the first step configures, and adds in the sand mill; Continue to stir, add Portland clinker 500g then, make Portland clinker and resin solution thorough mixing; Be wrapped in the feldspathic sand wicking surface, form one deck resin-coated film, dry naturally then; Fragmentation is sieved, and obtains sand control solidifying agent product of the present invention.
The product degree of sphericity that above-mentioned two steps obtain is more than 0.6, and the particle diameter of gained sand control solidifying agent product is 0.7mm～1.4mm.
Below through the sand control function of testing data explanation the present invention in sand control measure.
Conventionally test: take by weighing sand control solidifying agent 27g, add sand-carrying agent, sample is fully soaked; Stir the artificial rock core mould of packing into, simulated formation temperature maintenance 72h; Afterwards; Take out made artificial rock core, test its ultimate compression strength and liquid infiltration rate respectively with electronic tension tester and core flow test appearance, the artificial borehole wall that the visible product of the present invention of this test forms in oil and water well has certain intensity and rate of permeation; Can play preventing formation sand production, and not influence the effect of oil and water well ordinary production.
Underground trials: the resulting sand control solidifying agent of technical scheme of the present invention product has been carried out the inferior underground trials of 5 wells; Continuously tested 180d; Average individual well daily oil production increases 2.2t, and average individual well water cut reduces to 77%% by 92.4%, moisture reduction about 15%.
This shows that sand control solidifying agent of the present invention is applied in the oil and water well sand control measure, can effectively prevent sand production in oil, have economic benefit significantly.
The present invention is not limited to above-mentioned embodiment.The present invention can also make other change and distortion, and the sand control solidifying agent of these changes and distortion all drops on protection scope of the present invention.
Claims (12)
1. a sand control solidifying agent comprises the feldspar core, and cement clinker and resin solution is characterized in that: this sand control solidifying agent is the particle that the resin molding that is rich in cement clinker is coated on the feldspathic sand wicking surface.
2. sand control solidifying agent according to claim 1 is characterized in that: the mass ratio of said resin solution, cement clinker and feldspar core is 20: 100: 200.
3. sand control solidifying agent according to claim 1 and 2 is characterized in that: resin is a unsaturated polyester resin in the said resin solution.
4. sand control solidifying agent according to claim 1 and 2 is characterized in that: said cement clinker is a Portland clinker.
5. sand control solidifying agent according to claim 1 and 2 is characterized in that: said feldspathic sand slug particle particle diameter is 0.5-1.2mm.
6. sand control solidifying agent according to claim 3 is characterized in that: include unsaturated polyester resin, solidifying agent, organo silane coupling agent, stopper and thinner in the said resin solution.
7. sand control solidifying agent according to claim 6 is characterized in that: the mass ratio of said unsaturated polyester resin, solidifying agent, organo silane coupling agent, stopper and thinner is 100: 4: 1: 1: 20.
8. sand control solidifying agent according to claim 7 is characterized in that: said solidifying agent is a copper peroxide.
9. sand control solidifying agent according to claim 7 is characterized in that: said organo silane coupling agent is KH-550 or KH-570.
10. sand control solidifying agent according to claim 7 is characterized in that: said stopper is any in Resorcinol, p-ten.-butylcatechol and the phenyl aldehyde.
11. sand control solidifying agent according to claim 7 is characterized in that: said thinner is a methyl alcohol.
12. sand control solidifying agent according to claim 1 is characterized in that: said sand control solidifying agent particulate degree of sphericity is more than 0.6, and grain diameter is 0.7mm～1.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101708733A CN102838975A (en) | 2011-06-23 | 2011-06-23 | Sand-proof consolidation agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101708733A CN102838975A (en) | 2011-06-23 | 2011-06-23 | Sand-proof consolidation agent |
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| CN102838975A true CN102838975A (en) | 2012-12-26 |
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| CN2011101708733A Pending CN102838975A (en) | 2011-06-23 | 2011-06-23 | Sand-proof consolidation agent |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505372A (en) * | 2015-12-25 | 2016-04-20 | 天津大港油田石油工程研究院钻采技术开发公司 | Sand prevention and water reduction proppant particles and preparing method thereof |
| CN106047322A (en) * | 2016-06-03 | 2016-10-26 | 唐山市金沙工贸有限公司 | Locating high-strength blocking crack deflection fracturing resin coated sand and application process technology |
| CN108641691A (en) * | 2018-03-27 | 2018-10-12 | 中国石油大学(华东) | A kind of high-intensity resin blocking agent and the preparation method and application thereof |
| CN109694703A (en) * | 2017-10-20 | 2019-04-30 | 中国石油天然气股份有限公司 | Filling particles for sand prevention of oil-gas-water well and preparation method and application process thereof |
| CN110454120A (en) * | 2019-08-13 | 2019-11-15 | 青岛大地新能源技术研究院 | A kind of construction method of oil-water well autohemagglutination sand control |
| CN112920786A (en) * | 2021-02-01 | 2021-06-08 | 成都理工大学 | Composite sand control agent with high permeability retention rate |
| CN116179175A (en) * | 2022-12-27 | 2023-05-30 | 浙江赛默睿新材料科技有限公司 | Water-based resin emulsion sand-fixing material and preparation method thereof |
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| CN1492803A (en) * | 2001-02-01 | 2004-04-28 | ���ǻ�ѧ��˾ | Composite proppant, filtration medium, gravel packing media, and sports field media, and methods for making and using same |
| CN1839034A (en) * | 2003-04-15 | 2006-09-27 | 氦克逊特种化学品公司 | Particulate material containing thermoplastic elastomer and methods for making and using same |
| CN101432132A (en) * | 2004-09-20 | 2009-05-13 | 禾逊专业化学公司 | Particles for use as proppants or in gravel packs, methods for making and using the same |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1492803A (en) * | 2001-02-01 | 2004-04-28 | ���ǻ�ѧ��˾ | Composite proppant, filtration medium, gravel packing media, and sports field media, and methods for making and using same |
| CN1839034A (en) * | 2003-04-15 | 2006-09-27 | 氦克逊特种化学品公司 | Particulate material containing thermoplastic elastomer and methods for making and using same |
| CN101432132A (en) * | 2004-09-20 | 2009-05-13 | 禾逊专业化学公司 | Particles for use as proppants or in gravel packs, methods for making and using the same |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105505372A (en) * | 2015-12-25 | 2016-04-20 | 天津大港油田石油工程研究院钻采技术开发公司 | Sand prevention and water reduction proppant particles and preparing method thereof |
| CN106047322A (en) * | 2016-06-03 | 2016-10-26 | 唐山市金沙工贸有限公司 | Locating high-strength blocking crack deflection fracturing resin coated sand and application process technology |
| CN109694703A (en) * | 2017-10-20 | 2019-04-30 | 中国石油天然气股份有限公司 | Filling particles for sand prevention of oil-gas-water well and preparation method and application process thereof |
| CN108641691A (en) * | 2018-03-27 | 2018-10-12 | 中国石油大学(华东) | A kind of high-intensity resin blocking agent and the preparation method and application thereof |
| CN108641691B (en) * | 2018-03-27 | 2020-11-06 | 中国石油大学(华东) | High-strength resin plugging agent and preparation method and application thereof |
| CN110454120A (en) * | 2019-08-13 | 2019-11-15 | 青岛大地新能源技术研究院 | A kind of construction method of oil-water well autohemagglutination sand control |
| CN110454120B (en) * | 2019-08-13 | 2021-10-01 | 青岛大地新能源技术研究院 | Construction method for self-gathering sand prevention of oil-water well |
| CN112920786A (en) * | 2021-02-01 | 2021-06-08 | 成都理工大学 | Composite sand control agent with high permeability retention rate |
| CN116179175A (en) * | 2022-12-27 | 2023-05-30 | 浙江赛默睿新材料科技有限公司 | Water-based resin emulsion sand-fixing material and preparation method thereof |
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Application publication date: 20121226 |