CN100400618C - Hydrophobic and lipophilic treatment agent for formation near wellbore zone and preparation method thereof - Google Patents
Hydrophobic and lipophilic treatment agent for formation near wellbore zone and preparation method thereof Download PDFInfo
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- CN100400618C CN100400618C CNB2006100442445A CN200610044244A CN100400618C CN 100400618 C CN100400618 C CN 100400618C CN B2006100442445 A CNB2006100442445 A CN B2006100442445A CN 200610044244 A CN200610044244 A CN 200610044244A CN 100400618 C CN100400618 C CN 100400618C
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- 230000002209 hydrophobic effect Effects 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 230000015572 biosynthetic process Effects 0.000 title description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 20
- 239000003093 cationic surfactant Substances 0.000 claims abstract description 17
- 239000000084 colloidal system Substances 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 239000005416 organic matter Substances 0.000 claims description 14
- 239000010779 crude oil Substances 0.000 claims description 10
- YMKDRGPMQRFJGP-UHFFFAOYSA-M cetylpyridinium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 YMKDRGPMQRFJGP-UHFFFAOYSA-M 0.000 claims description 8
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 claims description 8
- 239000010426 asphalt Substances 0.000 claims description 7
- 229960001927 cetylpyridinium chloride Drugs 0.000 claims description 7
- QGVIKOCYKCZQBQ-UHFFFAOYSA-M hexadecyl-dimethyl-phenylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C1=CC=CC=C1 QGVIKOCYKCZQBQ-UHFFFAOYSA-M 0.000 claims description 6
- 239000012188 paraffin wax Substances 0.000 claims description 6
- WJDJWDHXZBNQNE-UHFFFAOYSA-M 1-octadecylpyridin-1-ium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+]1=CC=CC=C1 WJDJWDHXZBNQNE-UHFFFAOYSA-M 0.000 claims description 4
- 238000009736 wetting Methods 0.000 claims description 4
- 235000014113 dietary fatty acids Nutrition 0.000 claims description 3
- 239000000194 fatty acid Substances 0.000 claims description 3
- 229930195729 fatty acid Natural products 0.000 claims description 3
- 150000004665 fatty acids Chemical class 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- OSNIIMCBVLBNGS-UHFFFAOYSA-N 1-(1,3-benzodioxol-5-yl)-2-(dimethylamino)propan-1-one Chemical compound CN(C)C(C)C(=O)C1=CC=C2OCOC2=C1 OSNIIMCBVLBNGS-UHFFFAOYSA-N 0.000 claims description 2
- VGUANSONTIBISX-UHFFFAOYSA-N hexadecyl(dimethyl)azanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCN(C)C VGUANSONTIBISX-UHFFFAOYSA-N 0.000 claims description 2
- UPHWVVKYDQHTCF-UHFFFAOYSA-N octadecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCCCN UPHWVVKYDQHTCF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 2
- ANRCSZILOHNONR-UHFFFAOYSA-N acetic acid;hexadecan-1-amine Chemical group CC([O-])=O.CCCCCCCCCCCCCCCC[NH3+] ANRCSZILOHNONR-UHFFFAOYSA-N 0.000 claims 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims 1
- 239000003129 oil well Substances 0.000 abstract description 19
- 230000005660 hydrophilic surface Effects 0.000 abstract description 2
- 238000005755 formation reaction Methods 0.000 description 11
- 239000003921 oil Substances 0.000 description 11
- 238000004519 manufacturing process Methods 0.000 description 7
- 239000005871 repellent Substances 0.000 description 5
- 239000011435 rock Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 238000009775 high-speed stirring Methods 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000638 stimulation Effects 0.000 description 2
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
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Abstract
Description
技术领域 technical field
本发明涉及油井近井地带地层憎水亲油处理剂及其制备方法，属于石油化工技术领域。The invention relates to a water-repellent and lipophilic treatment agent for oil well near-well formations and a preparation method thereof, belonging to the technical field of petrochemical industry.
背景技术 Background technique
在油井的钻井、完井、生产和增产处理过程中，水在油层的近井地带聚集，造成底层水堵，即降低了原油的渗透率，也就是阻碍了原油从地层流向油井，降低油井产量。因此，提高油井采油速度，降低含水率，解除水堵与排除地层近井地带的水有很大关系，而原油储集层通常都是亲水的，即构成储油层的岩芯是亲水的，或者说是水湿润的，而在油井的各项作业过程中，压井液中的水向地层渗入，将近井地带的原油驱离井筒，岩芯的毛细管力又无法抵消，造成油井出油困难，产能降低，而将油井近井地带岩芯由亲水界面改变为憎水亲油界面，提高油井周围原油渗透率，降低水的渗透率，以解除水堵，达到降水增油的效果。本发明的憎水亲油处理剂处理油井近井地带，使其岩芯由亲水润湿转变为亲油润湿，得以提高油井周围原油渗透率而达到增油目的。In the process of drilling, completion, production and stimulation of oil wells, water accumulates in the near-well zone of the oil layer, causing water plugging at the bottom, which reduces the permeability of crude oil, that is, hinders the flow of crude oil from the formation to the oil well, and reduces the production of the oil well . Therefore, increasing the oil production rate of oil wells, reducing water cut, and removing water plugging have a lot to do with removing water near the wellbore, and crude oil reservoirs are usually hydrophilic, that is, the cores that make up the reservoir are hydrophilic , or water-wet, and during the various operations of the oil well, the water in the well-killing fluid seeps into the formation, driving the crude oil in the vicinity of the wellbore away from the wellbore, and the capillary force of the core cannot be offset, causing the oil well to produce oil. Difficult to reduce production capacity, and change the core near the wellbore from a hydrophilic interface to a hydrophobic and oil-friendly interface, increase the permeability of crude oil around the oil well, and reduce the permeability of water to relieve water plugging and achieve the effect of reducing water and increasing oil production. The hydrophobic and lipophilic treatment agent of the present invention treats the near-well zone of the oil well to make the rock core change from hydrophilic wetting to lipophilic wetting, so as to increase the permeability of crude oil around the oil well and achieve the purpose of increasing oil.
发明内容 Contents of the invention
本发明提供一种油井近井地带地层憎水亲油处理剂及其制备方法，该憎水亲油处理剂用于油田的生产中油井的增油降水作业和水井的调剖。The invention provides a water-repellent and lipophilic treatment agent for formations near the wellbore and a preparation method thereof. The water-repellent and lipophilic treatment agent is used for oil increase and dewatering operations of oil wells and profile control of water wells during oil field production.
本发明憎水亲油处理剂，包括水、阳离子表面活性剂、吸附于岩芯表面可使其润湿型反转的有机物，组份如下，均为重量份：The hydrophobic and lipophilic treatment agent of the present invention comprises water, a cationic surfactant, and an organic matter adsorbed on the surface of a rock core to make its wetting type reverse, and the components are as follows, all in parts by weight:
水100份100 parts of water
阳离子表面活性剂1～20Cationic surfactant 1～20
有机物1～120。Organic matter 1-120.
上述阳离子表面活性剂可以是十六烷基胺乙酸盐、十六烷基二甲基胺乙酸盐、十六烷基氯化吡啶、十六烷基二甲基苯基氯化铵、十八烷基胺乙酸盐、双(十八烷基)二甲基氯化铵、十八烷基氯化吡啶、十八烷基二乙烯基三胺二乙酸盐等的一种或几种。Above-mentioned cationic surfactant can be cetyl amine acetate, cetyl dimethylamine acetate, cetyl pyridinium chloride, cetyl dimethyl phenyl ammonium chloride, cetyl dimethyl phenyl ammonium chloride, One or more of octadecylamine acetate, bis (octadecyl) dimethyl ammonium chloride, octadecyl pyridinium chloride, octadecyl divinyltriamine diacetate, etc. .
有机物可是原油、沥青、有机硅、有机酸或石蜡。The organic matter can be crude oil, bitumen, silicone, organic acid or paraffin.
上述原油优选重油或轻油。The aforementioned crude oil is preferably heavy oil or light oil.
上述有机酸优选脂肪酸。The aforementioned organic acid is preferably a fatty acid.
当有机物是沥青或石蜡时，本发明的憎水亲油处理剂的制备方法时，向水中加入阳离子表面活性剂，加热到85～90℃注入胶体磨，然后加入120-140℃有机物，分散均匀，出料。制备过程中应注意保温。选用其它有机物时，室温下制备即可，方法如下：When the organic matter is asphalt or paraffin, in the preparation method of the hydrophobic and lipophilic treatment agent of the present invention, a cationic surfactant is added to the water, heated to 85-90°C and injected into a colloid mill, and then organic matter at 120-140°C is added to disperse evenly ,Discharge. Care should be taken during the preparation process. When other organic substances are selected, they can be prepared at room temperature, and the method is as follows:
向高速搅拌釜依次加入水、阳离子表面活性剂，然后加入有机物，搅拌20分钟，出料。Add water, cationic surfactant, and organic matter to the high-speed stirring tank in sequence, stir for 20 minutes, and discharge.
本发明的憎水亲油处理剂带有正电荷可以与带有负电荷的油井周围的亲水岩层相互吸引，使乳液破乳，憎水亲油的有机物粘结或通过阳离子表面活性剂粘结在岩芯上，使岩层由亲水性的反转为亲油憎水岩层，达到增油阻水的目的。本发明的憎水亲油处理剂注入油井中，可与岩芯牢固粘结，使油井近井地层由亲水性表面反转为憎水亲油性表面，并保持有效期在两个月以上。使用本发明的憎水亲油处理剂在孤东油田进行的10口作业施工的中试结果表明，不仅成功地解除了油层水堵，使油井的产油量大幅度上升，且含水率明显下降。本发明为石油工业提供了一种廉价高效的油井增产新方法。The hydrophobic and lipophilic treatment agent of the present invention has a positive charge and can attract the hydrophilic rock formations around the negatively charged oil well to break the emulsion, and bind the hydrophobic and lipophilic organic matter or through cationic surfactants On the core, the rock formation is reversed from hydrophilic to oil-wet and hydrophobic, so as to achieve the purpose of increasing oil and blocking water. The hydrophobic and lipophilic treatment agent of the present invention can be injected into the oil well, and can be firmly bonded with the rock core, so that the near-well formation of the oil well is reversed from a hydrophilic surface to a hydrophobic and lipophilic surface, and the valid period is more than two months. The pilot test results of 10 wells in Gudong Oilfield using the hydrophobic and lipophilic treatment agent of the present invention showed that not only the water plugging in the oil layer was successfully removed, the oil production of the oil well increased significantly, and the water content decreased significantly . The invention provides a low-cost and high-efficiency oil well stimulation new method for the petroleum industry.
具体实施方式 Detailed ways
实施例1：Example 1:
一种油井近井地带地层憎水亲油处理剂，其中阳离子表面活性剂选用双(十八烷基)二甲基氯化铵和十六烷基氯化吡啶，有机类物质选用沥青，具体组份如下，均为重量份：The invention relates to a hydrophobic and lipophilic treatment agent for formations near the wellbore, wherein the cationic surfactants are selected from bis(octadecyl)dimethyl ammonium chloride and cetyl pyridinium chloride, and the organic substances are selected from bitumen. Parts are as follows, all are parts by weight:
水100份100 parts of water
双(十八烷基)二甲基氯化铵8份8 parts of bis(octadecyl)dimethylammonium chloride
十六烷基氯化吡啶6份Hexadecyl pyridinium chloride 6 parts
沥青80份。80 parts of asphalt.
制备方法：向水中加入双(十八烷基)二甲基氯化铵和十六烷基氯化吡啶，加热到85～90℃注入胶体磨，然后加入140℃左右的热沥青，出料，制备过程中注意保温。Preparation method: Add bis(octadecyl)dimethyl ammonium chloride and cetyl pyridinium chloride to water, heat to 85-90°C and pour into colloid mill, then add hot asphalt at about 140°C, discharge, Pay attention to heat preservation during the preparation process.
本实施例憎水亲油处理剂使用时作业现场可用污水加入1～6％的OP-10稀释至固含量1～5％溶液注入地层，注完后，用污水顶替，封井48小时后开井。When the hydrophobic and lipophilic treatment agent of this embodiment is used, the operation site can be diluted with 1-6% OP-10 to the solid content of 1-5% solution injected into the formation. well.
实施例2：Example 2:
一种油井近井地带地层憎水亲油处理剂，其中阳离子表面活性剂选用双(十八烷基)二甲基氯化铵和十六烷基氯化吡啶，有机类物质选用羟基硅油，具体组份如下，均为重量份：A hydrophobic and lipophilic treatment agent for oil well near wellbore formations, in which bis(octadecyl)dimethyl ammonium chloride and cetyl pyridinium chloride are selected as cationic surfactants, and hydroxyl silicone oil is selected as organic substance, specifically Components are as follows, all in parts by weight:
水100份100 parts of water
双(十八烷基)二甲基氯化铵5份5 parts of bis(octadecyl)dimethylammonium chloride
十六烷基氯化吡啶5份Cetyl pyridinium chloride 5 parts
羟基硅油60份。60 parts of hydroxyl silicone oil.
制备方法：向高速搅拌釜依次加入水、双(十八烷基)二甲基氯化铵和十六烷基氯化吡啶，然后加入羟基硅油，搅拌20分钟，出料。Preparation method: Add water, bis(octadecyl)dimethyl ammonium chloride and cetyl pyridinium chloride in sequence to a high-speed stirring tank, then add hydroxyl silicone oil, stir for 20 minutes, and discharge.
本实施例憎水亲油处理剂作业现场可用污水加入1～6％的OP-10稀释至固含量1～5％溶液注入地层，注完后，用污水顶替，封井48小时后开井。In this embodiment, the water-repellent and lipophilic treatment agent can be diluted with 1-6% OP-10 to solid content of 1-5% and injected into the stratum at the working site.
实施例3：Example 3:
一种油井近井地带地层憎水亲油处理剂，其中阳离子表面活性剂选用十六烷基二甲基苯基氯化铵和十八烷基氯化吡啶，有机类物质选用石蜡，具体组份如下，均为重量份：A water-repellent and lipophilic treatment agent for formation near the wellbore, wherein the cationic surfactants are cetyl dimethyl phenyl ammonium chloride and octadecyl pyridinium chloride, and the organic substances are paraffin wax. The specific components As follows, all are parts by weight:
水100份100 parts of water
十六烷基二甲基苯基氯化铵6份Hexadecyl dimethyl phenyl ammonium chloride 6 parts
十八烷基氯化吡啶9份Octadecyl pyridinium chloride 9 parts
石蜡90份。90 parts of paraffin.
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| CNB2006100442445A CN100400618C (en) | 2006-05-24 | 2006-05-24 | Hydrophobic and lipophilic treatment agent for formation near wellbore zone and preparation method thereof |
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| CN1433499A (en) * | 1999-09-24 | 2003-07-30 | 阿克佐诺贝尔公司 | Method of improving permeability of underground petroleum-containing formation |
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| CN1528853A (en) * | 2003-10-09 | 2004-09-15 | 西南石油学院 | Cationic Gemini Surfactants as Oil Displacing Agents |
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| Title |
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