CN1162506C - Composite sand-proof material for oil-water well and its preparation - Google Patents
Composite sand-proof material for oil-water well and its preparation Download PDFInfo
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- CN1162506C CN1162506C CNB021357064A CN02135706A CN1162506C CN 1162506 C CN1162506 C CN 1162506C CN B021357064 A CNB021357064 A CN B021357064A CN 02135706 A CN02135706 A CN 02135706A CN 1162506 C CN1162506 C CN 1162506C
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- sand
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- 239000002131 composite material Substances 0.000 title claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 239000000463 material Substances 0.000 title claims abstract description 16
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 70
- 239000004576 sand Substances 0.000 claims abstract description 61
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 230000002265 prevention Effects 0.000 claims abstract description 17
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000004094 surface-active agent Substances 0.000 claims abstract description 12
- 239000006004 Quartz sand Substances 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 10
- 229920005989 resin Polymers 0.000 claims abstract description 10
- 239000011347 resin Substances 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 8
- 230000000996 additive effect Effects 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 3
- 238000001035 drying Methods 0.000 claims abstract description 3
- 238000011084 recovery Methods 0.000 claims abstract description 3
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 14
- 239000013543 active substance Substances 0.000 claims description 13
- 239000000203 mixture Substances 0.000 claims description 9
- 241001449342 Chlorocrambe hastata Species 0.000 claims description 8
- -1 poly dimethyl allyl ammonia chloride Chemical compound 0.000 claims description 8
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 7
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 7
- 229920003987 resole Polymers 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- LMODBTYAMBSWQE-UHFFFAOYSA-N (2-hydroxyphenyl)methanetriol Chemical compound OC1=CC=CC=C1C(O)(O)O LMODBTYAMBSWQE-UHFFFAOYSA-N 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 238000005056 compaction Methods 0.000 claims description 2
- 238000013467 fragmentation Methods 0.000 claims description 2
- 238000006062 fragmentation reaction Methods 0.000 claims description 2
- QYKIQEUNHZKYBP-UHFFFAOYSA-N Vinyl ether Chemical compound C=COC=C QYKIQEUNHZKYBP-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000007596 consolidation process Methods 0.000 abstract description 3
- 239000003129 oil well Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 2
- 230000002579 anti-swelling effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 abstract 1
- 239000004088 foaming agent Substances 0.000 abstract 1
- 238000002156 mixing Methods 0.000 abstract 1
- 230000035699 permeability Effects 0.000 abstract 1
- CQRYARSYNCAZFO-UHFFFAOYSA-N salicyl alcohol Chemical compound OCC1=CC=CC=C1O CQRYARSYNCAZFO-UHFFFAOYSA-N 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 206010020852 Hypertonia Diseases 0.000 description 1
- 208000013201 Stress fracture Diseases 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- GZCGUPFRVQAUEE-SLPGGIOYSA-N aldehydo-D-glucose Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C=O GZCGUPFRVQAUEE-SLPGGIOYSA-N 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an oil-water well composite sand-proof material and a preparation method thereof, which is a series of composite sand-proof materials matched with an oil-water well composite sand-proof technology (PCS sand-proof for short). Comprises an anti-swelling agent, a surfactant, a composite pore-forming agent and coated sand as a filling material in an oil recovery auxiliary agent. The expansion-preventing agent, the surfactant and the clear water are used for preparing the pad fluid and the sand-carrying fluid. Mixing surfactant, hydrochloric acid and hydroxymethyl phenol to prepare the liquid composite pore-foaming agent. Resin and additive are coated on the surface of the quartz sand which is pickled, and the coated sand with single particle is formed after drying and crushing. The low-temperature precoated sand has the main advantages that the lowest curing temperature can reach 40 ℃, the flexural strength and the tensile strength are respectively improved by 1-2.5 MPa and 1-4 MPa, the permeability is higher, the problems of low consolidation strength of low-temperature precoated sand between 40 ℃ and 60 ℃, multiple oil layers, heterogeneous strata, large span and side drilling sand prevention are solved, the low-temperature precoated sand is suitable for oil wells and water wells with various depths of coarse, medium and fine sand grains, the construction success rate is high, and the effective period is long.
Description
(1) technical field
The present invention relates to oil field producing oil, gas, the used sand prevention material of water from well.It particularly is oil-water well composite sand prevention material and preparation method thereof.
(2) background technology
In oil production, oil, well shake out very harmful, and it is the primary measure that guarantees the oil field ordinary production that sand output well is carried out sand control.Oil, well sand control mainly are divided into chemical sand control, mechanical sand control and composite sand prevention three major types at present.Wherein oil-water well composite sand prevention is the new anti-sand process technology that grew up in recent years, has overcome many shortcomings of chemical sand control and mechanical sand control, and has had the two-fold advantage of chemical sand control and mechanical sand control, and technology is more advanced, and range of application is wider, and benefit is also higher.Therefore, also just arise at the historic moment with the supporting composite sand prevention material of new composite sand prevention Technology.By retrieval, find four pieces of relevant patent documentations: " urea-formaldehyde resin solution sand-proof process formulation " (94110712), " low temperature oil layer is coated with the stuccoing technical recipe " (95107817), " oil and water well sand control pack material and compound method thereof " (96116141), " compounding process of high-temp foamed resin sand-fixing agent " (97105102).Though these patented technologies have his own strong points, do not belong to the composite sand prevention material therefor, the prescription that has and preparation technology's more complicated, cost is higher, and the range of application that has is narrower.
(3) summary of the invention
Another patented technology " oil-water well composite sand prevention method " (being called for short the PCS sand control) that the objective of the invention is for us provides supporting serial composite sand prevention material.Wherein " P " representative " high pressure filling ", " C " representative " chemical agent ", " S " representative " artificial sand ".
This compound serial sand prevention material comprises expansion-resisting agent in the oil recovery auxiliary agent, tensio-active agent, composite pore-forming and as the precoated sand of compaction material.Wherein, expansion-resisting agent is the poly dimethyl allyl ammonia chloride.Tensio-active agent is OP series of surfactants (claiming alkyl polyoxyethylene ether again).Composite pore-forming comprises OP series of surfactants, hydrochloric acid, tri hydroxy methyl phenol.Precoated sand is quartz sand surface coating one deck resol or Resins, epoxy and the additive hexamethylenetetramine after pickling.
Utilize above-mentioned expansion-resisting agent and tensio-active agent to be mixed with spearhead and sand-carrying agent that PCS composite sand prevention technology is used, its prescription is respectively:
Spearhead: (1) expansion-resisting agent is the poly dimethyl allyl ammonia chloride, working concentration 0.5～5%;
(2) tensio-active agent is the OP series of surfactants, working concentration 0.5～4%;
(3) all the other are clear water, mix.
Sand-carrying agent: (1) expansion-resisting agent is the poly dimethyl allyl ammonia chloride, working concentration 0.3～4%;
(2) tensio-active agent is the OP series of surfactants, working concentration 0.5～3%;
(3) all the other are clear water, mix.
The prescription and the preparation method of composite pore-forming and precoated sand are respectively:
Composite pore-forming:
(1) OP-10 tensio-active agent (mass concentration＞90%) concentration 5～15%;
(2) hydrochloric acid (mass concentration＞30%) concentration 35～65%;
(3) tri hydroxy methyl phenol (mass concentration＞40%) concentration 30～40%.
More than three kinds of compositions mix liquid composite pore-forming.
Precoated sand:
(1) quartz sand;
(2) resin: adopt resol or Resins, epoxy, consumption is 6～15% of a quartz sand quality;
(3) additive: adopt hexamethylenetetramine.
Its preparation method is at the quartz sand surface after the pickling coating above-mentioned resol of one deck or Resins, epoxy and additive hexamethylenetetramine, drying, fragmentation and the precoated sand of formation individual particle.Its density is 1.6 ± 0.1g/cm
3, particle diameter is 0.8～1.5mm, has circularity and sphericity preferably.
The effect of spearhead is: precoated sand (or other artificial sand) is preceding pumping into, high-duty pump is gone into spearhead can make the reservoir that shakes out form some cracks, microfracture or hole in the immediate vicinity of wellbore, spearhead also has the reservoir of preventing clay swelling, reduces the effect of oil water interfacial tension.
The effect of sand-carrying agent is: precoated sand (or other artificial sand) is brought in to the sanding formation that forms crack or hole, also had expansion, viscosity reduction effect.
The effect of composite pore-forming is: the solid phase grit that corrosion precoated sand surface splits away off because of friction, improve artificial sand wall rate of permeation and consolidation strength.
The effect of precoated sand is: rely on sand-carrying agent that precoated sand is pumped into sanding formation, under the effect of formation temperature more than 40 ℃ and waterpower compacting, its surperficial overlay is in contact with one another gluing, forms the artificial sand wall with high strength, hypertonicity, plays the purpose of the not stifled liquid of sand control, increasing yield and injection.
The present invention and prior art contrast major advantage are: solidification value is minimum to reach 40 ℃, and other prior art is minimum can only to reach 55～60 ℃.Fixed back folding strength improves 1～2.5Mpa, and ultimate compression strength improves 1～4Mpa, has higher rate of permeation.The difficult problem of the low and multiple zone of low temperature precoated sand consolidation strength, inhomogeneous formation, large span, sidetracked hole sand control between having solved 40～60 ℃, be applicable to out oil, the well of the various degree of depth of carse, medium and small sand grains, and viscosity of crude is less than the square sand of the also serious sand output well of 6000 centipoises, inclined shaft, uncased hole, Lao Jing, casing failure well.The success ratio height, validity period is long, and generally in 1～5 year, what have reaches 10 years.
(4) embodiment
Introduce an embodiment: have the used sand prevention material of a bite oil well to be, spearhead is that 2% OP series of surfactants and working concentration are that 3% poly dimethyl allyl ammonia chloride expansion-resisting agent is formulated by working concentration; Sand-carrying agent is that 1% OP-10 tensio-active agent and working concentration are that 1.5% poly dimethyl allyl ammonia chloride expansion-resisting agent is formulated by working concentration; Composite pore-forming is mixed by OP-10 tensio-active agent (mass concentration＞90%) concentration 10%, hydrochloric acid (mass concentration＞30%) concentration 50%, tri hydroxy methyl phenol (mass concentration＞40%) concentration 40%; Used precoated sand is that density is 1.6g/cm at coating one deck resol of the quartz sand surface after overpickling and hexamethylenetetramine additive
3, particle diameter is 0.8～1.5mm, and circularity is greater than 0.7, and sphericity is greater than 0.7, and 42 ℃ of softening temperatures, folding strength are 3.5Mpa, tensile strength is 7Mpa.
Claims (2)
1. oil-water well composite sand prevention material, comprise expansion-resisting agent, tensio-active agent, composite pore-forming in the oil recovery auxiliary agent, and as the precoated sand of compaction material, it is characterized in that expansion-resisting agent is the poly dimethyl allyl ammonia chloride, tensio-active agent is OP series of surfactants (claiming alkyl collection oxygen Vinyl Ether again), composite pore-forming comprises OP series of surfactants, hydrochloric acid, tri hydroxy methyl phenol, and precoated sand is quartz sand surface coating one deck resol or Resins, epoxy and the additive hexamethylenetetramine after pickling.
2. the oil-water well composite sand prevention preparation methods is characterized in that spearhead and sand-carrying agent that the composite sand prevention technology is used, and its prescription is respectively:
Spearhead: (1) expansion-resisting agent is the poly dimethyl allyl ammonia chloride, working concentration 0.5～5%;
(2) tensio-active agent is the OP series of surfactants, working concentration 0.5～4%;
(3) all the other are for asking water, mix.
Sand-carrying agent: (1) expansion-resisting agent is the poly dimethyl allyl ammonia chloride, working concentration 0.3～4%;
(2) tensio-active agent is the OP series of surfactants, working concentration 0.5～3%;
(3) all the other are clear water, mix.
The prescription and the preparation method of composite pore-forming are:
(1) OP-10 tensio-active agent (mass concentration＞90%) concentration 5～15%;
(2) hydrochloric acid (mass concentration＞30%) concentration 35～65%;
(3) tri hydroxy methyl phenol (mass concentration＞40%) concentration 30～40%.
More than three kinds of compositions mix liquid composite pore-forming.
The prescription and the preparation method of precoated sand are:
(1) quartz sand;
(2) resin: adopt resol or Resins, epoxy, consumption is 6～15% of a quartz sand quality;
(3) additive: adopt hexamethylenetetramine.
Its preparation method is at the quartz sand surface after the pickling coating above-mentioned resol of one deck or Resins, epoxy and additive hexamethylenetetramine, drying, fragmentation and the precoated sand of formation individual particle, and its density is 1.6 ± 0.1g/cm
3, particle diameter is 0.8～1.5mm, has circularity and sphericity preferably.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021357064A CN1162506C (en) | 2002-10-01 | 2002-10-01 | Composite sand-proof material for oil-water well and its preparation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021357064A CN1162506C (en) | 2002-10-01 | 2002-10-01 | Composite sand-proof material for oil-water well and its preparation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1403532A CN1403532A (en) | 2003-03-19 |
| CN1162506C true CN1162506C (en) | 2004-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB021357064A Expired - Fee Related CN1162506C (en) | 2002-10-01 | 2002-10-01 | Composite sand-proof material for oil-water well and its preparation |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100348688C (en) * | 2005-06-21 | 2007-11-14 | 山东大学 | Particle stabilized emulsion system and method for preparing same and its use as lubricant for drilling fluid |
| CN101148979B (en) * | 2006-09-18 | 2012-03-28 | 袁新 | Novel method for preparing resin coating sand |
| CN101338186A (en) * | 2008-08-08 | 2009-01-07 | 胜利油田东方实业投资集团有限责任公司 | Composite fiber rapid solidification sand prevention agent |
| CN101362938B (en) * | 2008-09-23 | 2010-11-10 | 西安石油大学 | Drilling shaft lining stabilizer |
| CN102060568B (en) * | 2010-10-13 | 2013-06-19 | 中国石油化工股份有限公司 | Preparation process of loaded water-controlled sand with phase permeability regulating function |
| CN102226078B (en) * | 2011-04-19 | 2013-09-04 | 中国石油天然气股份有限公司 | Oil well sand prevention pretreatment agent for improving sand prevention effect and application thereof |
| CN107163926B (en) * | 2017-05-02 | 2020-07-07 | 东营市科诺石油技术有限责任公司 | Sand control method for artificial well wall and sand control material thereof |
| US10513915B2 (en) * | 2017-11-30 | 2019-12-24 | Saudi Arabian Oil Company | Consolidated material to equalize fluid flow into a wellbore |
| 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 |
| CN114961630B (en) * | 2021-02-20 | 2024-04-30 | 中国石油天然气股份有限公司 | Sand prevention method for oil well filled with foaming material |
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- 2002-10-01 CN CNB021357064A patent/CN1162506C/en not_active Expired - Fee Related
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| CN1403532A (en) | 2003-03-19 |
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