CN1298805C - Active collosol deep adjusting driving agnet - Google Patents
Active collosol deep adjusting driving agnet Download PDFInfo
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- CN1298805C CN1298805C CNB2004100236129A CN200410023612A CN1298805C CN 1298805 C CN1298805 C CN 1298805C CN B2004100236129 A CNB2004100236129 A CN B2004100236129A CN 200410023612 A CN200410023612 A CN 200410023612A CN 1298805 C CN1298805 C CN 1298805C
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229920001732 Lignosulfonate Polymers 0.000 claims abstract description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 6
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 6
- 239000011734 sodium Substances 0.000 claims abstract description 6
- 235000019357 lignosulphonate Nutrition 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 abstract description 14
- 230000015572 biosynthetic process Effects 0.000 abstract description 12
- 238000005755 formation reaction Methods 0.000 abstract description 12
- 230000035699 permeability Effects 0.000 abstract description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 150000003839 salts Chemical class 0.000 abstract description 3
- 238000005406 washing Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 2
- 238000010408 sweeping Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 19
- 239000000499 gel Substances 0.000 description 19
- 239000003921 oil Substances 0.000 description 11
- 238000001246 colloidal dispersion Methods 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000007863 gel particle Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 238000001879 gelation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- ZUGAOYSWHHGDJY-UHFFFAOYSA-K 5-hydroxy-2,8,9-trioxa-1-aluminabicyclo[3.3.2]decane-3,7,10-trione Chemical compound [Al+3].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O ZUGAOYSWHHGDJY-UHFFFAOYSA-K 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000009671 shengli Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
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- Colloid Chemistry (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Abstract
本发明提供了一种活性溶胶深部调驱剂，用于不同渗透率的地层，它由60%～69%的木质素磺酸盐、6.5%～11.0%的偏铝酸钠、3%～15%的甲醛和3%～12%的水混合而成，上述各组分含量之和为100%。这种调驱剂具有耐温耐盐性能，同时又具有提高波及系统和洗油效率双重作用。The invention provides an active sol deep regulating and driving agent, which is used in formations with different permeability, which consists of 60%-69% lignosulfonate, 6.5%-11.0% sodium metaaluminate, 3%-15 % formaldehyde and 3% to 12% water, the sum of the above components is 100%. This control and flooding agent has the performance of temperature resistance and salt resistance, and at the same time has the dual functions of improving the sweeping system and oil washing efficiency.
Description
技术领域：Technical field:
本发明涉及一种油田化学用剂，尤其是用于不同渗透率地层、具有耐温耐盐性能的深部调驱剂。The invention relates to an oilfield chemical agent, in particular to a deep-seated control and flooding agent which is used in formations with different permeability and has the performance of heat and salt resistance.
背景技术：Background technique:
在注水开发油田中，注入水沿高渗透层渗流，降低了注入水的波及系数。同时，注入水沿高渗透层的渗流又加剧了地层的不均质性，导致注入水的利用率不断降低。In the water injection development oilfield, the injected water seeps along the high permeability layer, which reduces the sweep coefficient of the injected water. At the same time, the seepage of injected water along the high-permeability layer aggravates the heterogeneity of the formation, resulting in a continuous decrease in the utilization rate of injected water.
油井高含水对油田开发带来二个负面影响，一方面，大量的产出水对油田水处理系统造成压力以及增加成本；另一方面，由于产水层往往是高压层，产出的高压水对低压层的产油有抑制作用。High water cut in oil wells has two negative effects on oilfield development. On the one hand, a large amount of produced water puts pressure on the oilfield water treatment system and increases costs; on the other hand, because the water-producing layer is often a high-pressure layer, the high-pressure water It has an inhibitory effect on oil production in low-pressure layers.
由于以上二个原因，油田生产过程中必须控制注入水沿高渗透层突进和降低油井的含水率。调剖堵水是实现上述二个目的的有效措施。Due to the above two reasons, it is necessary to control the injection water rushing along the high permeability layer and reduce the water cut of the oil well during the production process of the oil field. Profile control and water shutoff are effective measures to achieve the above two objectives.
20世纪90年代末到目前，认识到调剖堵水存在用量和机理二方面的局限性，为了提高原油采收率，调剖堵水工作应和三次采油相结合，并提出和开展了深部调驱提高采收率技术。From the end of the 1990s to the present, it has been recognized that there are two limitations in the amount and mechanism of profile control and water shutoff. In order to improve oil recovery, profile control and water shutoff work should be combined with tertiary oil recovery. Flooding enhanced oil recovery technology.
深部调驱技术是伴随着胶态分散体凝胶的出现而发展起来的。胶态分散体凝胶是80年代中期，国外研究人员在实验室试图寻找一种使用筛网定量评价层状凝胶的方法时偶然发现的。Smith[1]等人于80年代中期对部分水解聚丙烯酰胺和柠檬酸铝的交联体系进行了室内配方研究，90年代中期根据凝胶溶液的性质而取名胶态分散体凝胶。Deep control and flooding technology is developed along with the appearance of colloidal dispersion gel. Colloidal dispersion gel was accidentally discovered by foreign researchers in the laboratory in the mid-1980s when they were trying to find a method for quantitatively evaluating lamellar gels using sieves. In the mid-1980s, Smith[1] et al. carried out indoor formulation research on the crosslinking system of partially hydrolyzed polyacrylamide and aluminum citrate. In the mid-1990s, they named it colloidal dispersion gel according to the properties of the gel solution.
目前国内外深部调驱技术主要发展了2类方法，即弱凝胶深部调驱技术、胶体分散体深部调驱技术。At present, there are mainly two types of deep control and flooding technologies at home and abroad, namely weak gel deep control and flooding technology and colloid dispersion deep control and flooding technology.
弱凝胶深部调驱技术是近年来国外在凝胶堵水技术基础上发展起来调驱技术，弱凝胶是指粘度在100mPa.s～10000mPa.s的凝胶体系，该技术充分利用了弱凝胶的可动性，它同时具有聚合物凝胶堵水和油藏内部流体流度调节这两种机理。该技术在国内油田已广泛应用，取得了较好的效果。Weak gel deep control and flooding technology is developed on the basis of gel water plugging technology abroad in recent years. Weak gel refers to the gel system with a viscosity between 100mPa.s and 10000mPa.s. This technology makes full use of weak The mobility of the gel, it has two mechanisms of polymer gel water plugging and reservoir internal fluid fluidity regulation at the same time. This technology has been widely used in domestic oil fields and achieved good results.
胶体分散体深部调驱技术主要发展了2类调驱剂，分别为胶体分散体凝胶(CDG)、预交联凝胶颗粒(PG)。Colloidal dispersion deep control and flooding technology mainly develops two types of control and flooding agents, namely colloidal dispersion gel (CDG) and pre-crosslinked gel particles (PG).
(1)胶体分散体凝胶(CDG)(1) Colloidal dispersion gel (CDG)
胶体分散体凝胶深部调驱技术是八十年代中期由国外提出并发展起来的一种深部调驱技术，该技术利用了胶态分散体凝胶的特性，因此它也同时具有聚合物凝胶堵水和油藏内部流体流度调节这两种技术特点。目前，美国TIORCO公司已进行了35次矿场实验，并取得经济和技术上的成功。国内大庆、胜利、辽河等油田也进行了现场实验。Colloidal dispersion gel deep water control technology is a deep water control technology proposed and developed by foreign countries in the mid-1980s. This technology utilizes the characteristics of colloidal dispersion gel, so it also has the characteristics of polymer gel These two technical features are water plugging and fluid fluidity regulation inside the reservoir. At present, TIORCO of the United States has conducted 35 field experiments and achieved economic and technical success. Domestic Daqing, Shengli, Liaohe and other oil fields have also carried out field experiments.
(2)预交联凝胶颗粒(PG)(2) Pre-crosslinked gel particles (PG)
预交联凝胶颗粒深部调驱技术是由国内研究并发展起来的一种深部调驱技术，该技术是向地层中注入已交联的颗粒，由于胶凝作用是在注入以前就完成了，所以预交联颗粒技术较好地解决了地下交联凝胶体系进入地层后因稀释、降解、吸附及PH值的变化等因素造成的不成胶问题。该技术目前已经在胜利、中原油田进行了应用。The pre-crosslinked gel particle deep control and flooding technology is a deep control and flooding technology researched and developed in China. This technology is to inject crosslinked particles into the formation. Since the gelation is completed before the injection, Therefore, the pre-cross-linked particle technology better solves the problem of non-gelation caused by factors such as dilution, degradation, adsorption, and pH value changes after the underground cross-linked gel system enters the formation. This technology has been applied in Shengli and Zhongyuan Oilfields.
由于目前的深部调驱剂都是由聚丙烯酰胺作基础原料，因此其要求地层水矿化度小于20000mg/L，要求地层温度小于93℃，要求地层的渗透率大于100×10-3μm2。这就限制了深部调驱技术在油田的应用。Since the current deep control and flooding agents all use polyacrylamide as the basic raw material, it requires formation water salinity to be less than 20,000 mg/L, formation temperature to be less than 93°C, and formation permeability to be greater than 100×10 -3 μm 2 . This limits the application of deep control and flooding technology in oilfields.
发明内容：Invention content:
本发明的目的是要开发一种耐温、耐盐、可用于不同渗透率地层的同时具有提高波及系数和洗油效率双重作用的深部调驱剂。The object of the present invention is to develop a deep water control and flooding agent that is temperature-resistant, salt-resistant, can be used in formations with different permeability, and has dual functions of improving sweep coefficient and oil washing efficiency.
本发明的目的是这样实现的：所述的深部调驱剂由木质素磺酸盐、偏铝酸钠、甲醛和水混合而成，各组分的含量分别是：木质素磺酸盐60％～69％、偏铝酸钠6.5％～11.0％、甲醛3％～15％和水3％～12％，上述各组分含量之和为100％。The object of the present invention is achieved like this: the described deep-seated regulating and displacing agent is formed by mixing lignosulfonate, sodium metaaluminate, formaldehyde and water, and the content of each component is respectively: lignosulfonate 60% ~69%, sodium metaaluminate 6.5%~11.0%, formaldehyde 3%~15% and water 3%~12%, the sum of the contents of the above components is 100%.
具体实施方式：Detailed ways:
下面结合实施例来具体描述本发明的组成及制备过程。The composition and preparation process of the present invention will be specifically described below in conjunction with the examples.
实施例1：向已启动的1m3带有蒸汽夹套的捏合机内依次加入490kg木质素磺酸盐、70kg偏铝酸钠和70kg水，通蒸汽升温至80℃，1小时后加入90kg浓度为36％的甲醛水溶液，将捏合机密封3小时后出料，加温到125℃干燥，粉碎至100目，装袋。Example 1: Add 490kg of lignosulfonate, 70kg of sodium metaaluminate and 70kg of water successively into the started 1m3 kneader with steam jacket, heat up to 80°C with steam, and add 90kg of concentration after 1 hour It is 36% formaldehyde aqueous solution, the kneader is sealed for 3 hours, and then the material is discharged, heated to 125° C., dried, crushed to 100 mesh, and packed into bags.
本发明所述活性溶胶深部调驱剂可使用于：The active sol deep regulating and displacing agent described in the present invention can be used in:
油层温度：0℃-150℃；Reservoir temperature: 0°C-150°C;
堵水地层的岩性：不限Lithology of water blocking formation: unlimited
原油性质：不限Crude oil properties: unlimited
使用地层的渗透率：≥0.01μm2 The permeability of the stratum used: ≥0.01μm 2
本发明所提供的活性溶胶深部调驱剂在地层中遇到高矿化度(大于20000mg/L)的地层水后，随着矿化度的增加，体系的粘度逐渐增加，最终可发生部分聚结形成凝胶。同时，随着活性溶胶深部调驱剂在地层中的运移，体系的pH值逐渐下降，粘度逐渐升高。由于体系粘度的升高，活性溶胶深部调驱剂可显著提高驱油剂在油层深部的波及系数。After the active sol deep control and displacement agent provided by the present invention encounters formation water with high salinity (greater than 20000 mg/L) in the formation, the viscosity of the system gradually increases with the increase of salinity, and finally partial polymerization may occur. Congeals to form a gel. At the same time, with the migration of the active sol deep control and displacement agent in the formation, the pH value of the system gradually decreases and the viscosity gradually increases. Due to the increase of the viscosity of the system, the active sol deep control and displacement agent can significantly increase the sweep coefficient of the oil displacement agent in the deep part of the oil layer.
调驱剂中的碱性成分和木质素磺酸盐可降低油水界面张力，起提高洗油效率的作用。The alkaline components and lignin sulfonate in the flooding agent can reduce the oil-water interfacial tension and improve the oil washing efficiency.
本发明所提供的活性溶胶深部调驱剂具有显著的耐高温性能，可在200℃温度下长期使用。且使用范围广，可用于粘度小于10000mPa.s的地层。The active sol deep control and drive agent provided by the present invention has remarkable high temperature resistance and can be used for a long time at a temperature of 200°C. And it has a wide range of applications, and can be used in formations with a viscosity less than 10,000mPa.s.
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| CNB2004100236129A CN1298805C (en) | 2004-02-25 | 2004-02-25 | Active collosol deep adjusting driving agnet |
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| CNB2004100236129A CN1298805C (en) | 2004-02-25 | 2004-02-25 | Active collosol deep adjusting driving agnet |
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| CN1298805C true CN1298805C (en) | 2007-02-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1298804C (en) * | 2005-10-18 | 2007-02-07 | 中国石油天然气股份有限公司 | Hydrophobic water-swelling profile control agent |
| CN104356396A (en) * | 2014-11-24 | 2015-02-18 | 天津大港油田滨港集团博弘石油化工有限公司 | Preparation method of lignin sulfite profile control agent for oil production |
| CN104559975B (en) * | 2014-12-24 | 2017-05-10 | 中国石油天然气股份有限公司 | Water plugging agent and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272587A (en) * | 1999-04-30 | 2000-11-08 | 大庆石油管理局 | Three-component composite displacement system formed from alkali, active agent and polymer and its application in tertiary oil recovery |
| CN1275430A (en) * | 1999-05-27 | 2000-12-06 | 大庆石油管理局 | Lignin sulfonate surfactant for oil field, its preparation process and use in tertiary oil recovery |
| CN1281026A (en) * | 2000-08-07 | 2001-01-24 | 大庆油田有限责任公司勘探开发研究院 | Three-element built-up composition containing lignosulfonate surfactant and its application in tertiary petroleum recovery |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1272587A (en) * | 1999-04-30 | 2000-11-08 | 大庆石油管理局 | Three-component composite displacement system formed from alkali, active agent and polymer and its application in tertiary oil recovery |
| CN1275430A (en) * | 1999-05-27 | 2000-12-06 | 大庆石油管理局 | Lignin sulfonate surfactant for oil field, its preparation process and use in tertiary oil recovery |
| CN1281026A (en) * | 2000-08-07 | 2001-01-24 | 大庆油田有限责任公司勘探开发研究院 | Three-element built-up composition containing lignosulfonate surfactant and its application in tertiary petroleum recovery |
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