CN101671550A - Hard compound reinforcing bridging agent - Google Patents
Hard compound reinforcing bridging agent Download PDFInfo
- Publication number
- CN101671550A CN101671550A CN200910016568A CN200910016568A CN101671550A CN 101671550 A CN101671550 A CN 101671550A CN 200910016568 A CN200910016568 A CN 200910016568A CN 200910016568 A CN200910016568 A CN 200910016568A CN 101671550 A CN101671550 A CN 101671550A
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- plugging
- leakage
- bridging agent
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- 150000001875 compounds Chemical class 0.000 title 1
- 230000003014 reinforcing effect Effects 0.000 title 1
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 16
- 229920001875 Ebonite Polymers 0.000 claims abstract description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 8
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 abstract description 10
- 238000010276 construction Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000008093 supporting effect Effects 0.000 abstract description 3
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000005755 formation reaction Methods 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 238000003756 stirring Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
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- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
本发明公开了一种硬质复合增强桥堵剂,其组份例含量为重量份;贝壳粉30-40;碳酸钙15-30天然硬橡胶30-40;天然硬纤维20-30;配制方法:上述组份的物质在常温常压下混合搅拌均匀即可。本发明具有一定硬度的弹性堵漏材料按科学配伍的比例复合而成,在堵漏施工过程中使不同粒经的刚性固体颗粒进入漏失裂缝、漏失孔喉、漏失通道时,不同粒经的刚性颗粒在不同尺寸的裂缝、孔隙漏失通道中起到架桥和支撑作用,支撑能力强、封堵特性高、使用范围广等特点,广泛在石油、地质勘探的防漏堵漏工艺中应用。The invention discloses a hard composite reinforced bridging agent, the components of which are in parts by weight; shell powder 30-40; calcium carbonate 15-30 natural hard rubber 30-40; natural hard fiber 20-30; preparation method : The materials of the above components can be mixed and stirred evenly under normal temperature and pressure. The elastic plugging material with a certain hardness of the present invention is compounded according to the proportion of scientific compatibility. When rigid solid particles with different particle diameters enter the leakage cracks, leakage throats, and leakage channels during the plugging construction process, the rigidity of different particle diameters will be different. Particles play the role of bridging and supporting in cracks and pore leakage channels of different sizes. They have the characteristics of strong supporting capacity, high sealing performance and wide application range. They are widely used in the leak prevention and plugging process of petroleum and geological exploration.
Description
一、技术领域 1. Technical field
本发明涉及钻井堵漏桥堵剂,特别涉及一种硬质复合增强桥堵剂。The invention relates to a bridging agent for drilling leakage plugging, in particular to a hard composite reinforced bridging agent.
二、背景技术 2. Background technology
石油勘探开发的钻井过程中,经常发生井漏,一般使用核桃壳、云母、蛭石、贝壳等材料进行堵漏施工,为钻井堵漏施工发挥了作用,但其同时存在着如下的缺点和不足:①由于漏失井段长既存在泥砂岩软质岩性又存在着灰岩、碳酸盐硬质岩性,因此,发生井漏后无法尽快优选出与地层岩性特征相适应的堵漏剂的性能、堵漏剂的强度、堵漏剂的粒径、堵漏剂的配方,造成反复多次堵漏施工;②堵漏时间长、材料消耗大、复杂情况多,堵漏成本高,直接影响钻探速度,堵漏成功率低;③这些桥堵剂没有足够的抗压、抗张和抗剪切强度,有的颗粒状材料硬度又高,与漏失地层岩性不匹配,在施工中不是由于颗粒应力形变而改变其几何形状,降低堵漏效果,就是由于颗粒硬度大造成地层破碎,使地层重复漏失。During the drilling process of oil exploration and development, lost circulation often occurs. Generally, walnut shells, mica, vermiculite, shells and other materials are used for plugging construction, which plays a role in drilling plugging construction, but it also has the following shortcomings and deficiencies : ① Due to the long lost well interval, there are soft mudstone lithology and limestone and carbonate hard lithology, therefore, it is impossible to select a plugging agent suitable for formation lithology characteristics as soon as possible after lost circulation occurs The performance of the plugging agent, the strength of the plugging agent, the particle size of the plugging agent, and the formula of the plugging agent have resulted in repeated plugging constructions; Affect the drilling speed, and the plugging success rate is low; ③These bridging agents do not have sufficient compressive, tensile and shear strength, and some granular materials have high hardness, which does not match the lithology of the lost formation. Stress deformation changes its geometric shape and reduces the plugging effect, because the formation is broken due to the high hardness of the particles, which makes the formation repeatedly lost.
三、发明内容 3. Contents of the invention
本发明的目的是提供一种硬质复合增强桥堵剂,采用不同粒径的刚性材料及不同硬度的弹性材料复配组成合,通过对漏失井壁裂缝的有效支撑和有效封堵,使不同粒径堵漏材料进入漏失通道深部,提高地层的承压能力,防止颗粒应力形变而改变其几何形状,增强承压强度,提高堵漏效果,有效地克服或避免上述现有技术中存在的缺点或不足。The purpose of the present invention is to provide a hard composite reinforced bridge plugging agent, which is composed of rigid materials of different particle sizes and elastic materials of different hardness, through effective support and effective plugging of leaked well wall cracks, so that different The particle size plugging material enters the deep part of the leakage channel, improves the pressure bearing capacity of the formation, prevents the particle stress deformation from changing its geometric shape, enhances the pressure bearing strength, improves the plugging effect, and effectively overcomes or avoids the above-mentioned shortcomings in the prior art or insufficient.
本发明所述硬质复合增强桥堵剂,其组成及含量,含量为重量份:Hard composite reinforced bridging agent of the present invention, its composition and content, content is weight part:
贝壳粉30-40;碳酸钙15-30;天然硬橡胶30-40;天然硬纤维20-30。Shell powder 30-40; calcium carbonate 15-30; natural hard rubber 30-40; natural hard fiber 20-30.
配制方法:上述组份的物质按其组份及含量,在常温常压下混合搅拌均匀即可。Preparation method: the substances of the above components are mixed and stirred evenly at normal temperature and pressure according to their components and contents.
本发明与现有堵漏剂具有如下优点或有益效果:The present invention and existing leakage stoppage agent have following advantage or beneficial effect:
1、堵漏剂组分既含有刚性材料又含有弹性材料,1. The components of the plugging agent contain both rigid materials and elastic materials.
2、在漏失通道中具有很强的架桥支撑作用,确保堵漏剂进入漏失通道深部。2. It has a strong bridging and supporting effect in the leakage channel, ensuring that the plugging agent enters the deep part of the leakage channel.
3、在不规则的漏失通道中具有很高的填充封堵作用,提高了堵漏成功率。3. It has a high filling and sealing effect in irregular leakage channels, which improves the success rate of leakage sealing.
4、堵漏剂粒径分布范围广,可填充不同类型的漏失裂缝和漏失通道。4. The particle size distribution of the plugging agent is wide, and it can fill different types of leakage cracks and leakage channels.
5、使用范围广,既适合泥沙岩软地层,又适合碳酸盐硬地层。5. It has a wide range of applications, not only suitable for mudstone soft formations, but also suitable for carbonate hard formations.
6、无毒、无污染,配制简单、施工安全,不损害泵件,可连续施工,堵漏成功率高。6. Non-toxic, non-polluting, simple preparation, safe construction, no damage to pump parts, continuous construction, high plugging success rate.
五、具体实施方式: 5. Specific implementation methods:
一种硬质复合增强桥堵剂,其组成及含量,含量为重量份:A kind of hard composite reinforced bridging agent, its composition and content, content is weight part:
贝壳粉30-40;碳酸钙15-30;天然硬橡胶30-40;天然硬纤维20-30。Shell powder 30-40; calcium carbonate 15-30; natural hard rubber 30-40; natural hard fiber 20-30.
配制方法:上述组份的物质按其组份及含量,在常温常压下混合搅拌均匀即可。Preparation method: the substances of the above components are mixed and stirred evenly at normal temperature and pressure according to their components and contents.
使用时,在堵漏钻井液中加人堵漏钻井液总量的2%-15%的本发明的多功能连接桥堵剂。下面给出具体实施例:When in use, add 2%-15% of the multifunctional connection bridging agent of the present invention in the lost circulation drilling fluid of the total amount of the lost circulation drilling fluid. Provide specific embodiment below:
第1例Case 1
贝壳粉30;碳酸钙15;天然硬橡胶30;天然硬纤维20。在常温常压下混合搅拌均匀,在堵漏钻井液中加人堵漏钻井液总量的2%的本发明的多功能连接桥堵剂。Shell powder 30; calcium carbonate 15; natural hard rubber 30; natural hard fiber 20. Mix and stir evenly under normal temperature and pressure, and add 2% of the total amount of the plugging drilling fluid to the lost circulation drilling fluid of the present invention.
第2例Case 2
贝壳粉33;碳酸钙18;天然硬橡胶33;天然硬纤维23。在常温常压下混合搅拌均匀,在堵漏钻井液中加人堵漏钻井液总量的8%的本发明的多功能连接桥堵剂。Shell powder 33; calcium carbonate 18; natural hard rubber 33; natural hard fiber 23. Mix and stir evenly under normal temperature and pressure, and add 8% of the total amount of the plugging drilling fluid to the plugging drilling fluid.
第3例Case 3
贝壳粉35;碳酸钙25;天然硬橡胶35;天然硬纤维25。在常温常压下混合搅拌均匀,在堵漏钻井液中加人堵漏钻井液总量的12%的本发明的多功能连接桥堵剂。Shell powder 35; calcium carbonate 25; natural hard rubber 35; natural hard fiber 25. Mix and stir evenly under normal temperature and pressure, and add 12% of the total amount of the plugging drilling fluid to the plugging drilling fluid. Multifunctional bridging agent of the present invention.
第4例Case 4
贝壳粉40;碳酸钙30;天然硬橡胶40;天然硬纤维30。在常温常压下混合搅拌均匀,在堵漏钻井液中加人堵漏钻井液总量的15%的本发明的多功能连接桥堵剂。Shell powder 40; calcium carbonate 30; natural hard rubber 40; natural hard fiber 30. Mix and stir evenly under normal temperature and pressure, and add 15% of the total amount of the plugging drilling fluid into the plugging drilling fluid.
其中第1例、第2例、第3例为实施例,第4例为比较例。Wherein the first example, the second example, the third example are examples, and the fourth example is a comparative example.
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CN103694973A (en) * | 2013-12-20 | 2014-04-02 | 中国石油集团渤海钻探工程有限公司 | Composite plugging agent for coal-bed gas well |
CN103740351A (en) * | 2013-12-31 | 2014-04-23 | 东营泰尔石油技术有限公司 | Low-density consolidation type plugging agent |
CN103773335A (en) * | 2013-12-31 | 2014-05-07 | 东营泰尔石油技术有限公司 | Plugging agent capable of being solidified through acidification |
CN103820092A (en) * | 2014-01-29 | 2014-05-28 | 中国石油集团西部钻探工程有限公司 | Well wall reinforcing material and preparing method thereof |
CN104130759A (en) * | 2014-07-15 | 2014-11-05 | 中国石油集团长城钻探工程有限公司钻井液公司 | Plugging agent and preparation method thereof |
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CN105199685A (en) * | 2015-09-23 | 2015-12-30 | 中国石油天然气股份有限公司 | Induced crack leakage-proof and plugging water-based drilling fluid |
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CN106398660A (en) * | 2016-08-31 | 2017-02-15 | 四川上之登新材料有限公司 | Pressure-bearing plugging agent for drilling fluid |
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CN103773335A (en) * | 2013-12-31 | 2014-05-07 | 东营泰尔石油技术有限公司 | Plugging agent capable of being solidified through acidification |
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CN105199685A (en) * | 2015-09-23 | 2015-12-30 | 中国石油天然气股份有限公司 | Induced crack leakage-proof and plugging water-based drilling fluid |
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CN106398660A (en) * | 2016-08-31 | 2017-02-15 | 四川上之登新材料有限公司 | Pressure-bearing plugging agent for drilling fluid |
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CN106800920A (en) * | 2016-12-28 | 2017-06-06 | 中国石油天然气股份有限公司 | Plugging modifier and preparation method and application thereof |
CN106800920B (en) * | 2016-12-28 | 2019-06-11 | 中国石油天然气股份有限公司 | Plugging modifier and preparation method and application thereof |
CN109796943A (en) * | 2019-02-28 | 2019-05-24 | 青岛海石元创石油技术有限公司 | Drilling fluid fractured reservoir high resiliency, Gao Kangwen sealing agent and preparation method thereof |
CN111073616A (en) * | 2019-12-18 | 2020-04-28 | 中国海洋石油集团有限公司 | Temporary plugging agent and application thereof |
CN110903815A (en) * | 2019-12-20 | 2020-03-24 | 东营泰尔石油技术有限公司 | High-strength leakage-stopping slurry |
CN114045159A (en) * | 2021-11-25 | 2022-02-15 | 沙克(天津)石油技术服务有限公司 | One-bag type plugging agent and preparation method thereof |
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