CN201031676Y - 锅炉烟道气加压吸收二氧化碳气态注井采油装置 - Google Patents
锅炉烟道气加压吸收二氧化碳气态注井采油装置 Download PDFInfo
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Abstract
一种锅炉烟道气加压吸收二氧化碳气态注井采油装置，由锅炉1、高压水泵2、洗涤塔3、压缩机4、吸收塔5、分离罐6、闪蒸罐7、溶剂泵8、气提塔9、空压机10、二氧化碳压缩机11、净化器12、二氧化碳增压机13、干燥床14、膜组件15、氮气增压机16、混合罐17组成。该装置综合配套，设计合理，实用性强，利用它可以在一台蒸汽锅炉生产蒸汽的同时回收利用烟道气，获得二氧化碳和氮气，实现蒸汽、气态二氧化碳、氮气“单注”、“双注”、“三注”，获得增加油井原油产量和环境保护的良好效果。
Description
技术领域：
本实用新型涉及一种用于油井开采特别是回收利用锅炉烟道气与稠油注蒸汽相配套的工艺装置，属气体分离与净化和稠油开采技术领域。
背景技术：
注气是提高石油采收率的重要途径。在不同的注入气体和不同的油藏条件下，气体和原油可以形成混相或非混相状态，通过降低界面张力、降低原油粘度、恢复或保持油藏压力等作用，提高石油采收率。由于天然气等烃类气体具有油藏原油的某些特性，在注入时自身不会伤害油层，并且在相对低的压力下就可以达到混相，或者在驱替过程中动态混相，注天然气等烃类气体采油取得了较好的效果。但是随着天然气等烃类气体价格的上涨，注天然气等烃类气体在一定程度上受到了经济因素的制约，因此加快了注其他气体特别是注二氧化碳、氮气技术的研究。在稠油注蒸汽热采过程中，注汽锅炉产生的烟道气中的主要成分是二氧化碳和氮气，试验研究表明，利用蒸汽锅炉与配套的烟道气回收利用设备结合起来“一炉三注”(蒸汽、CO2、N2)，可以获得良好的增产效果，并有利于环境保护。然而由于各方面的原因，目前，注CO2、N2采油还只是处于单项技术先期试验研究阶段，尚未形成成熟配套技术和设备。
实用新型内容：
本实用新型的目的在于提供一种在注蒸采油的同时可以回收利用蒸汽锅炉烟道气中的二氧化碳和氮气用于注气采油的锅炉烟道气加压吸收二氧化碳气态注井采油装置。
本实用新型是这样实现的。该装置由锅炉、高压水泵、洗涤塔、压缩机、吸收塔、分离罐、闪蒸罐、溶剂泵、气提塔、空压机、二氧化碳压缩机、净化器、二氧化碳增压机、干燥床、膜组件、氮气增压机、混合罐组成，锅炉底部通过供水管道与高压水泵相连接，顶部分别通过管道与洗涤塔和混合罐相连接；洗涤塔通过管道与吸收塔相连接，其间设有压缩机；吸收塔顶部、底部出口分别通过管道与分离罐和闪蒸罐相连接；闪蒸罐通过管道分别与净化器和气提塔相连接，闪蒸罐、净化器之间设有二氧化碳压缩机，气提塔通过溶剂泵和管道与吸收塔相连接，另一侧与空压机相连接；净化器通过管道与混合罐相连接，其间设有二氧化碳增压机；分离罐通过管道与干燥床相连接，干燥床通过管道与膜组件相连接；混合罐通过油井井口管道与井下注气管柱相连接，膜组件通过氮气增压机和管道与油井套管相连接。工作时，由蒸汽锅炉生产的蒸汽可以通过输汽管道直接由稠油井口注入井内，烟道气则在该装置的上述流程内经过洗涤、压缩、吸收和闪蒸生产出浓度98％的二氧化碳气，用泵加压后注入油井中；烟道尾气再经过干燥吸附后制取浓度96％的氮气，经过增压后注入油井中。这样一台锅炉分步得到的水蒸汽、液态二氧化碳、氮气三种气体通过调配注入油井中，从而达到增加原油产量的目的。
本实用新型综合配套设计合理，实用性强，利用它可以在一台蒸汽锅炉生产蒸汽的同时回收利用烟道气，获得二氧化碳和氮气，实现蒸汽、气态二氧化碳、氮气“单注”、“双注”、“三注”，达到增加油井原油产量和环境保护的良好效果。
附图说明：
附图为本实用新型的工艺流程和总体结构示意图。图中，标号“18”、“19”分别为油井套管和注气管柱。
具体实施方式：
本实用新型由以下实施例给出，下面结合附图予以说明。
如图所示，本实用新型由锅炉1、高压水泵2、洗涤塔3、压缩机4、吸收塔5、分离罐6、闪蒸罐7、溶剂泵8、气提塔9、空压机10、二氧化碳压缩机11、净化器12、二氧化碳增压机13、干燥床14、膜组件15、氮气增压机16、混合罐17组成，其结构、组装关系如下：锅炉1底部通过供水管道与高压水泵2相连接，顶部分别通过管道与洗涤塔3和混合罐17相连接；洗涤塔3通过管道与吸收塔5相连接，其间设有压缩机4；吸收塔5顶部、底部出口分别通过管道与分离罐6和闪蒸罐7相连接；闪蒸罐7通过管道分别与净化器12和气提塔9相连接，闪蒸罐7、净化器12之间设有二氧化碳压缩机11，气提塔9通过溶剂泵8和管道与吸收塔5相连接，另一侧与空压机10相连接；分离罐6通过管道与干燥床14相连接，干燥床14通过管道与膜组件15相连接；混合罐17通过油井井口管道与井下注气管柱19相连接，膜组件15通过氮气增压机16和管道与油井套管18相连接。其中，锅炉1内管为可以生产15MPa以上高压蒸汽的高压管道，燃料可以是煤、原油或可燃气体，纯净水由15MPa以上高压泵供给。洗涤塔3为填料塔，填料由金属、塑料或陶瓷制成，也可用焦炭、矿石或植物丝制作，洗涤液为水、碳酸钠水溶液或氨水等弱碱性溶液。吸收塔5填料由金属、塑料或陶瓷制作，吸收液采用含有聚乙二醇二甲醚、三甲醚、环丁砜、碳酸丙烯酯、低温甲醇等一种或几种溶剂组成的混合液，亦可采用由一乙醇胺、甲基二乙醇胺、抗氧剂、缓蚀剂等一种或几种溶剂组成的混合液。净化器12由两个同样的净化床组成，内装氧化铝、硅胶、活性炭或分子筛固体填料。干燥床14由两个同样体积的干燥床用阀门组和管道连接组成，内装氧化铝、硅胶或分子筛固体颗粒填料。膜组件15由两个以上同样体积的膜组件构成膜组件制氮系统，内装有机中空纤维膜，几个膜组件之间用阀门组和管道并联连接。
Claims (1)
1.一种锅炉烟道气加压吸收二氧化碳气态注井采油装置，由锅炉(1)、高压水泵(2)、洗涤塔(3)、压缩机(4)、吸收塔(5)、分离罐(6)、闪蒸罐(7)、溶剂泵(8)、气提塔(9)、空压机(10)、二氧化碳压缩机(11)、净化器(12)、二氧化碳增压机(13)、干燥床(14)、膜组件(15)、氮气增压机(16)、混合罐(17)组成，其特征在于：锅炉(1)底部通过供水管道与高压水泵(2)相连接，顶部分别通过管道与洗涤塔(3)和混合罐(17)相连接；洗涤塔(3)通过管道与吸收塔(5)相连接，其间设有压缩机(4)；吸收塔(5)顶部、底部出口分别通过管道与分离罐(6)和闪蒸罐(7)相连接；闪蒸罐(7)通过管道分别与净化器(12)和气提塔(9)相连接，闪蒸罐(7)、净化器(12)之间设有二氧化碳压缩机(11)，气提塔(9)通过溶剂泵(8)和管道与吸收塔(5)相连接，另一侧与空压机(10)相连接；分离罐(6)通过管道与干燥床(14)相连接，干燥床(14)通过管道与膜组件(15)相连接；混合罐(17)通过油井井口管道与井下注气管柱(19)相连接，膜组件(15)通过氮气增压机(16)和管道与油井套管(18)相连接。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720011439XU CN201031676Y (zh) | 2007-03-30 | 2007-03-30 | 锅炉烟道气加压吸收二氧化碳气态注井采油装置 |
| US11/940,168 US8460444B2 (en) | 2007-03-30 | 2007-11-14 | Equipment for pressurized adsorption of gaseous carbon dioxide from boiler flue gas for oil recovery by well injection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200720011439XU CN201031676Y (zh) | 2007-03-30 | 2007-03-30 | 锅炉烟道气加压吸收二氧化碳气态注井采油装置 |
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| CN201031676Y true CN201031676Y (zh) | 2008-03-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628849A (zh) * | 2012-08-23 | 2014-03-12 | 中国石油天然气股份有限公司 | 一种油田co2注入工艺 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| NO333138B1 (no) * | 2009-03-09 | 2013-03-11 | Norsk Inst For Luftforskning Nilu | Fremgangsmate for gassfangst |
| WO2015041914A1 (en) * | 2013-09-19 | 2015-03-26 | Dow Global Technologies Llc | Optimization of stripper feed configuration for rich/lean solvent regeneration |
| CN107575190B (zh) * | 2017-09-25 | 2018-08-24 | 中国石油大学(华东) | 一种基于最优烟气co2富集率开采稠油油藏的ccus系统及其工作方法 |
| CN110395860B (zh) * | 2019-07-25 | 2022-03-08 | 四川美富特环境治理有限责任公司 | 一种污泥资源化处理方法及系统 |
| AU2021235880A1 (en) * | 2020-03-09 | 2022-11-03 | Carbon Geocycle, Inc. | Process and system for greenhouse gas capture and sequestration |
| CN115554773B (zh) * | 2022-09-23 | 2024-09-20 | 陕西省煤田地质集团有限公司 | 一种富油煤地下原位热解气液固三相产物分离系统 |
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| US3594985A (en) * | 1969-06-11 | 1971-07-27 | Allied Chem | Acid gas removal from gas mixtures |
| BE790096A (fr) * | 1971-10-21 | 1973-04-13 | Mobil Oil Corp | Reduction de la corrosion des compartiments destines a la cargaison desnavires petroliers |
| US4552570A (en) * | 1980-05-02 | 1985-11-12 | Pall Corporation | Adsorbent fractionator with automatic cycle control and process |
| US4546829A (en) * | 1981-03-10 | 1985-10-15 | Mason & Hanger-Silas Mason Co., Inc. | Enhanced oil recovery process |
| US5061465A (en) * | 1989-08-24 | 1991-10-29 | Phillips Petroleum Company | Bulk CO2 recovery process |
| US5122355A (en) * | 1990-06-06 | 1992-06-16 | Union Carbide Industrial Gases Technology Corporation | Membrane nitrogen process and system |
| GB9715155D0 (en) * | 1997-07-19 | 1997-09-24 | Domnick Hunter Ltd | A gas dryer |
| US20030037928A1 (en) * | 2001-05-16 | 2003-02-27 | Ramakrishnan Ramachandran | Enhanced oil recovery |
| US7360595B2 (en) * | 2002-05-08 | 2008-04-22 | Cdx Gas, Llc | Method and system for underground treatment of materials |
| US7341102B2 (en) * | 2005-04-28 | 2008-03-11 | Diamond Qc Technologies Inc. | Flue gas injection for heavy oil recovery |
| US7588612B2 (en) * | 2005-07-19 | 2009-09-15 | Bank Of America, N.A. | Mobile nitrogen generation device |
| US8062408B2 (en) * | 2006-05-08 | 2011-11-22 | The Board Of Trustees Of The University Of Illinois | Integrated vacuum absorption steam cycle gas separation |
| US7862788B2 (en) * | 2007-12-05 | 2011-01-04 | Alstom Technology Ltd | Promoter enhanced chilled ammonia based system and method for removal of CO2 from flue gas stream |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103628849A (zh) * | 2012-08-23 | 2014-03-12 | 中国石油天然气股份有限公司 | 一种油田co2注入工艺 |
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| US20080236811A1 (en) | 2008-10-02 |
| US8460444B2 (en) | 2013-06-11 |
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