CN115261007A - 一种海洋油田完井液及返排资源化处理方法 - Google Patents
一种海洋油田完井液及返排资源化处理方法 Download PDFInfo
- Publication number
- CN115261007A CN115261007A CN202210672098.XA CN202210672098A CN115261007A CN 115261007 A CN115261007 A CN 115261007A CN 202210672098 A CN202210672098 A CN 202210672098A CN 115261007 A CN115261007 A CN 115261007A
- Authority
- CN
- China
- Prior art keywords
- completion fluid
- oil
- parts
- agent
- fluid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000012530 fluid Substances 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000004064 recycling Methods 0.000 title description 8
- 239000003921 oil Substances 0.000 claims abstract description 44
- 238000011084 recovery Methods 0.000 claims abstract description 35
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 28
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000002904 solvent Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000007864 aqueous solution Substances 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 claims abstract description 9
- 238000005260 corrosion Methods 0.000 claims abstract description 9
- 239000003960 organic solvent Substances 0.000 claims abstract description 9
- 239000004927 clay Substances 0.000 claims abstract description 7
- 239000003381 stabilizer Substances 0.000 claims abstract description 7
- 239000003112 inhibitor Substances 0.000 claims abstract description 6
- 239000004094 surface-active agent Substances 0.000 claims abstract description 6
- 239000012071 phase Substances 0.000 claims description 16
- 238000005191 phase separation Methods 0.000 claims description 14
- -1 alkylbenzene sulfonate Chemical class 0.000 claims description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 239000012267 brine Substances 0.000 claims description 9
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 claims description 9
- QPFMBZIOSGYJDE-UHFFFAOYSA-N 1,1,2,2-tetrachloroethane Chemical compound ClC(Cl)C(Cl)Cl QPFMBZIOSGYJDE-UHFFFAOYSA-N 0.000 claims description 6
- 241000191291 Abies alba Species 0.000 claims description 6
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 6
- 229920006322 acrylamide copolymer Polymers 0.000 claims description 6
- 150000002500 ions Chemical class 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- 239000007790 solid phase Substances 0.000 claims description 6
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 claims description 4
- 229920006317 cationic polymer Polymers 0.000 claims description 4
- YIOJGTBNHQAVBO-UHFFFAOYSA-N dimethyl-bis(prop-2-enyl)azanium Chemical compound C=CC[N+](C)(C)CC=C YIOJGTBNHQAVBO-UHFFFAOYSA-N 0.000 claims description 4
- DUIOKRXOKLLURE-UHFFFAOYSA-N 2-octylphenol Chemical compound CCCCCCCCC1=CC=CC=C1O DUIOKRXOKLLURE-UHFFFAOYSA-N 0.000 claims description 3
- 239000002283 diesel fuel Substances 0.000 claims description 3
- 239000003350 kerosene Substances 0.000 claims description 3
- 235000010989 polyoxyethylene sorbitan monostearate Nutrition 0.000 claims description 3
- 239000001818 polyoxyethylene sorbitan monostearate Substances 0.000 claims description 3
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 2
- AMQJEAYHLZJPGS-UHFFFAOYSA-N N-Pentanol Chemical compound CCCCCO AMQJEAYHLZJPGS-UHFFFAOYSA-N 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 150000008051 alkyl sulfates Chemical class 0.000 claims description 2
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 claims description 2
- 239000003502 gasoline Substances 0.000 claims description 2
- 239000010779 crude oil Substances 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000005416 organic matter Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 238000012797 qualification Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 239000002920 hazardous waste Substances 0.000 description 6
- 239000002699 waste material Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000003795 desorption Methods 0.000 description 5
- 239000006247 magnetic powder Substances 0.000 description 5
- 238000007885 magnetic separation Methods 0.000 description 5
- 239000010802 sludge Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000011156 evaluation Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- QKPKVNRWYSEQDK-UHFFFAOYSA-N ClC1=CC2=CC=CC=C2C(CC2=CC=CC3=CC=CC=C23)=N1 Chemical compound ClC1=CC2=CC=CC=C2C(CC2=CC=CC3=CC=CC=C23)=N1 QKPKVNRWYSEQDK-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000002579 anti-swelling effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- YEEYVXVVRMETQX-UHFFFAOYSA-N C1=CC=C2C(=C1)C=CC=C2CC3=NC4=CC=CC=C4C=C3Cl Chemical compound C1=CC=C2C(=C1)C=CC=C2CC3=NC4=CC=CC=C4C=C3Cl YEEYVXVVRMETQX-UHFFFAOYSA-N 0.000 description 1
- 235000008753 Papaver somniferum Nutrition 0.000 description 1
- 240000001090 Papaver somniferum Species 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229940051841 polyoxyethylene ether Drugs 0.000 description 1
- 229920000056 polyoxyethylene ether Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/607—Compositions for stimulating production by acting on the underground formation specially adapted for clay formations
- C09K8/608—Polymer compositions
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/524—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning organic depositions, e.g. paraffins or asphaltenes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/52—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning
- C09K8/528—Compositions for preventing, limiting or eliminating depositions, e.g. for cleaning inorganic depositions, e.g. sulfates or carbonates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/54—Compositions for in situ inhibition of corrosion in boreholes or wells
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/602—Compositions for stimulating production by acting on the underground formation containing surfactants
- C09K8/604—Polymeric surfactants
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/882—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
- C09K8/60—Compositions for stimulating production by acting on the underground formation
- C09K8/84—Compositions based on water or polar solvents
- C09K8/86—Compositions based on water or polar solvents containing organic compounds
- C09K8/88—Compositions based on water or polar solvents containing organic compounds macromolecular compounds
- C09K8/885—Compositions based on water or polar solvents containing organic compounds macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/001—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor specially adapted for underwater drilling
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
- E21B21/065—Separating solids from drilling fluids
- E21B21/066—Separating solids from drilling fluids with further treatment of the solids, e.g. for disposal
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/12—Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2208/00—Aspects relating to compositions of drilling or well treatment fluids
- C09K2208/32—Anticorrosion additives
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
本发明公开了一种海洋油田完井液及返排资源化处理方法。所述完井液包括A剂和B剂;A剂:有机溶剂40‑70重量份;B剂:水溶液60‑100重量份;表面活性剂5‑10重量份;互溶剂1‑2.5重量份;缓蚀剂0.2‑2重量份;黏土稳定剂1‑3重量份。本申请的完井液注入油气井,在开井后,可进行返排液资源化处理,通过固液分离、油水分离、溶剂回收以及盐水回收等处理过程,可将回收得到的有机物和基液重新用于完井液的配置。本申请的资源化处理方法保证了原油处理流程的稳定性,绿色、环保,可持续,具有广阔的应用前景。
Description
技术领域
本发明涉及海洋油田完井作业技术领域,特别涉及一种海洋油田完井液及返排资源化处理方法。
背景技术
在海洋油田开发井钻进完成后,完井过程非常关键,涉及到后期开采的效率。完井液体系的合理性,直接影响着油田的开发效果。油气产层是油田作业方最重要的资产。完井液是油气井完井作业的工作液,必须从根本上要求不对产层造成伤害。海洋油田定向井多采用隐形酸完井液体系完井,隐形酸HTA能够部分溶解有机物、无机垢、泥饼,疏通近井壁的油层孔道,但是对于稠油、超稠油油藏,各类作业措施实施后,以有机垢为主的近井油层通道如何开展油层保护和孔道疏通成为不可忽视的问题。
在新油井投产中,完井液返排进入原油处理流程,影响原油处理流程的油气水分离效果。海洋油田由于空间紧凑,集输流程停留时间短,完井液返排进入集输流程,其成分及其复杂, pH值、表面活性剂、油泥等会使得原油处理流程效率下降,波动明显。为保持原油处理流程稳定,将完井返排液进行资源化处理后回用,有着更好的意义。
发明内容
本发明为了解决上述技术问题,提供了一种海洋油田完井液及返排资源化处理方法。
第一方面,本发明提供一种海洋油田完井液,是采用以下技术方案得以实现的。
一种海洋油田完井液,包括A剂和B剂;
A剂:有机溶剂40-70重量份;
B剂:水溶液60-100重量份;表面活性剂5-10重量份;互溶剂1-2.5重量份;缓蚀剂0.2-2 重量份;黏土稳定剂1-3重量份;
所述水溶液包含电解质钙镁化合物和溴化物。
进一步的,所述有机溶剂选用柴油、煤油、白油、汽油和溶剂油中的一种或多种。
进一步的,所述水溶液中Ca2+、Mg2+、Br-离子的浓度分别为0.002-0.008mol/L、0.005-0.01mol/L、0.01-0.1mol/L。
进一步的,所述表面活性剂选自烷基硫酸盐、烷基苯磺酸盐、辛烷基苯酚聚氧乙烯醚-10、聚氧乙烯山梨醇酐单硬脂酸酯中的一种或多种。
进一步的,所述互溶剂选自乙二醇、丙醇、异丙醇、戊醇、四氯乙烷中的一种或多种。
进一步的,所述缓蚀剂选自氯代萘甲基喹啉、氯代萘甲基异喹啉、1,3-二甲基-2-咪唑啉酮中的一种或多种。
进一步的,所述黏土稳定剂选自二甲基二丙烯基氯化铵-丙烯酰胺共聚物、聚环氧氯丙烷 -二甲胺阳离子聚合物中的一种或两种。
第二方面,本申请提供上述海洋油田完井液在油气井完井作业中的应用。
第三方面,本申请提供一种海洋油田完井液的返排资源化处理方法,是采用以下技术方案得以实现的。
一种上述海洋油田完井液的返排资源化处理方法,包括以下步骤:
S1.完井液返排出地面,返排液从采油树返出后进入进行固液两相分离,所得固相残渣进行无害化处置,液相进行油水两相分离;
S2.油水两相分离得到的油相进入溶剂回收系统,水相进入盐水回收系统;
S3.将溶剂回收系统回收得到的有机物与盐水回收系统回收得到的基液进行完井液的配置。
进一步的,所述溶剂回收系统选用立式撬装热脱附设备,回收260-350℃的有机物。
进一步的,所述盐水回收系统包括电磁反应器、磁分离设备、磁粉回收设备和椭碟机。
本申请具有以下有益效果。
本发明海洋油田完井液为在完井作业的同时进行储层的保护,构建了复合型完井液体系。在开井后,完井液返排出地面,进入返排液资源化处理流程,处理后得到的有机物和基液可重新用于完井液的配制,此种资源化处理方法保证了原油处理流程的稳定性,绿色、环保,可持续,具有广阔的应用前景。
附图说明
图1是本发明海洋油田完井液返排资源化处理流程图。
具体实施方式
以下结合附图和实施例对本发明技术方案及技术效果进行进一步的说明。
下面实施例中的二甲基二丙烯基氯化铵-丙烯酰胺共聚物购自孝感深远化工有限公司, CAS No:108464-53-5;聚环氧氯丙烷-二甲胺阳离子聚合物购自绍兴上虞斯莫有机化学研究所。
实施例1
一种海洋油田完井液,包括A剂和B剂:
A剂:+10#柴油40kg;
B剂:水溶液100kg(Ca2+、Mg2+、Br-离子的浓度分别为0.005mol/L、0.01mol/L、0.01mol/L);辛烷基苯酚聚氧乙烯醚-105kg;四氯乙烷2.5kg;氯代萘甲基喹啉0.2kg;二甲基二丙烯基氯化铵-丙烯酰胺共聚物3kg。
将本实施例制备的完井液用泵注入油气井,24小时后开井。在开井后,完井液返排出地面,进入返排液资源化处理流程(如图1所示):返排液从采油树返出后进入卧螺两相离心机,进行固液两相分离,固相出口残渣进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置,液相进入蝶式离心机。蝶式离心机内进行油水两相分离,油相出口进入溶剂回收系统,水相出口进入盐水回收系统。溶剂回收系统为立式撬装热脱附设备,回收 260-350℃温度段的有机物,回用配置完井液。基液回收系统包括电磁反应器、磁分离设备、磁粉回收设备和椭碟机,处理后的基液回用配制完井液,脱水后的污泥进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置。回收的有机溶剂和基液进入完井液配制系统。
实施例2
一种海洋油田完井液,包括A剂和B剂:
A剂:32#白油70kg;
B剂:水溶液60kg(Ca2+、Mg2+、Br-离子的浓度分别为0.005mol/L、0.01mol/L、0.01mol/L);聚氧乙烯山梨醇酐单硬脂酸酯10kg;丙醇1kg;1,3-二甲基-2-咪唑啉酮2kg;聚环氧氯丙烷-二甲胺阳离子聚合物1kg。
将本实施例制备的完井液用泵车注入油气井,24小时后开井。在开井后,完井液返排出地面,进入返排液资源化处理流程(如图1所示):返排液从采油树返出后进入卧螺两相离心机,进行固液两相分离,固相出口残渣进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置,液相进入蝶式离心机。蝶式离心机内进行油水两相分离,油相出口进入溶剂回收系统,水相出口进入盐水回收系统。溶剂回收系统为立式撬装热脱附设备,回收260-350℃温度段的有机物,回用配置完井液。基液回收系统包括电磁反应器、磁分离设备、磁粉回收设备和椭碟机,处理后的基液回用配置完井液,脱水后的污泥进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置。回收的有机溶剂和基液进入完井液配制系统。
实施例3
一种海洋油田完井液,包括A剂和B剂:
A剂:航空煤油50kg;
B剂:水溶液70kg(Ca2+、Mg2+、Br-离子的浓度分别为0.005mol/L、0.01mol/L、0.01mol/L);烷基硫酸钠7kg;乙二醇2kg;氯代萘甲基异喹啉1kg;聚环氧氯丙烷-二甲胺阳离子聚合物2kg。
将本实施例制备的完井液用泵车注入油气井,24小时后开井。在开井后,完井液返排出地面,进入返排液资源化处理流程(如图1所示):返排液从采油树返出后进入卧螺两相离心机,进行固液两相分离,固相出口残渣进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置,液相进入蝶式离心机。蝶式离心机内进行油水两相分离,油相出口进入溶剂回收系统,水相出口进入盐水回收系统。溶剂回收系统为立式撬装热脱附设备,回收260-350℃温度段的有机物,回用配置完井液。基液回收系统包括电磁反应器、磁分离设备、磁粉回收设备和椭碟机,处理后的基液回用配置完井液,脱水后的污泥进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置。回收的有机溶剂和基液进入完井液配制系统。
实施例4
一种海洋油田完井液,包括A剂和B剂:
A剂:406#溶剂油60kg;
B剂:水溶液80kg(Ca2+、Mg2+、Br-离子的浓度分别为0.005mol/L、0.01mol/L、0.01mol/L);烷基苯磺酸钠8kg;异丙醇1.5kg;1,3-二甲基-2-咪唑啉酮1.5kg;二甲基二丙烯基氯化铵- 丙烯酰胺共聚物2.5kg。
将本实施例制备的完井液用泵车注入油气井,24小时后开井。在开井后,完井液返排出地面,进入返排液资源化处理流程(如图1所示):返排液从采油树返出后进入卧螺两相离心机,进行固液两相分离,固相出口残渣进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置,液相进入蝶式离心机。蝶式离心机内进行油水两相分离,油相出口进入溶剂回收系统,水相出口进入盐水回收系统。溶剂回收系统为立式撬装热脱附设备,回收260-350℃温度段的有机物,回用配置完井液。基液回收系统包括电磁反应器、磁分离设备、磁粉回收设备和椭碟机,处理后的基液回用配置完井液,脱水后的污泥进入危险废弃物箱罐中返回陆地有危险废弃物处理资质的企业进行无害化处置。回收的有机溶剂和基液进入完井液配制系统。
对比例1
一种海洋油田完井液,与实施例4的不同之处在于,不加入1,3-二甲基-2-咪唑啉酮。
对比例2
一种海洋油田完井液,与实施例4的不同之处在于,不加入二甲基二丙烯基氯化铵-丙烯酰胺共聚物。
对比例3
一种隐形酸完井液,由以下总量百分比的组分组成:4%黏土稳定剂HCS、2%隐形酸螯合剂HTA、1%防腐杀菌剂CA101,通过NaCl/KCl调节密度为1.08g/cm3。
性能检测
1.密度测定:采用合适量程的完井液用液体密度计进行测定;
2.粘度测定:采用青岛同春石油仪器有限公司ZNN-D6型旋转粘度计进行测定;
3.防膨率性能评价:依据中国石油天然气行业标准SY/T5971-1994规定的《注水用粘土稳定剂性能评价方法》中的防膨率测定方法进行测定;
4.腐蚀性能评价:根据中国石油行业标准SY/T5273-2000规定的《油田采出水用缓蚀剂性能评价方法》,采用挂片失重法进行腐蚀实验。
将实施例1-4和对比例1-2配制的完井液进行密度、粘度、防膨率和腐蚀性测定,实验结果见表1。
表1
应用例
将本申请实施例1-4的完井液与对比例3的完井液应用于渤海的油井完井作业中,测定油井的产量和每米采油指数,实验结果参见表2。
表2
本具体实施方式的实施例均为本发明的较佳实施例,并非依此限制本发明的保护范围,故:凡依本发明的结构、形状、原理所做的等效变化,均应涵盖于本发明的保护范围之内。
Claims (9)
1.一种海洋油田完井液,其特征在于:包括A剂和B剂;
A剂:有机溶剂40-70重量份;
B剂:水溶液60-100重量份;表面活性剂5-10重量份;互溶剂1-2.5重量份;缓蚀剂0.2-2重量份;黏土稳定剂1-3重量份;
所述水溶液包含电解质钙镁化合物和溴化物。
2.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述有机溶剂选用柴油、煤油、白油、汽油和溶剂油中的一种或多种。
3.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述水溶液中Ca2+、Mg2+、Br-离子的浓度分别为0.002-0.008mol/L、0.005-0.01mol/L、0.01-0.1mol/L。
4.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述表面活性剂选自烷基硫酸盐、烷基苯磺酸盐、辛烷基苯酚聚氧乙烯醚-10、聚氧乙烯山梨醇酐单硬脂酸酯中的一种或多种。
5.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述互溶剂选自乙二醇、丙醇、异丙醇、戊醇、四氯乙烷中的一种或多种。
6.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述缓蚀剂选自氯代萘甲基喹啉、氯代萘甲基异喹啉、1,3-二甲基-2-咪唑啉酮中的一种或多种。
7.根据权利要求1所述的一种海洋油田完井液,其特征在于:所述黏土稳定剂选自二甲基二丙烯基氯化铵-丙烯酰胺共聚物、聚环氧氯丙烷-二甲胺阳离子聚合物中的一种或两种。
8.一种权利要求1-7任一所述海洋油田完井液在油气井完井作业中的应用。
9.一种权利要求1-7任一所述海洋油田完井液的返排资源化处理方法,其特征在于:包括以下步骤:
S1.完井液返排出地面,返排液从采油树返出后进入进行固液两相分离,所得固相残渣进行无害化处置,液相进行油水两相分离;
S2.油水两相分离得到的油相进入溶剂回收系统,水相进入盐水回收系统;
S3.将溶剂回收系统回收得到的有机物与盐水回收系统回收得到的基液进行完井液的配制,实现资源化处理。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210672098.XA CN115261007B (zh) | 2022-06-15 | 2022-06-15 | 一种海洋油田完井液及返排资源化处理方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210672098.XA CN115261007B (zh) | 2022-06-15 | 2022-06-15 | 一种海洋油田完井液及返排资源化处理方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN115261007A true CN115261007A (zh) | 2022-11-01 |
CN115261007B CN115261007B (zh) | 2023-08-04 |
Family
ID=83762676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210672098.XA Active CN115261007B (zh) | 2022-06-15 | 2022-06-15 | 一种海洋油田完井液及返排资源化处理方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN115261007B (zh) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130252857A1 (en) * | 2012-03-23 | 2013-09-26 | Intevep, S.A. | Completion fluid |
CN104910880A (zh) * | 2015-04-21 | 2015-09-16 | 西南石油大学 | 一种堵漏型高密度束缚水压井液 |
US20160272868A1 (en) * | 2013-06-27 | 2016-09-22 | Isp Investments Inc. | A high-temperature high-pressure (hthp) stable synthetic polymer for water based oil-well servicing fluids |
US20200131433A1 (en) * | 2018-10-25 | 2020-04-30 | Cnpc Usa Corporation | Compositions of hydraulic fracturing fluid and method thereof |
CN111778002A (zh) * | 2020-07-07 | 2020-10-16 | 中国海洋石油集团有限公司 | 一种无固相高密度完井液及其制备方法 |
-
2022
- 2022-06-15 CN CN202210672098.XA patent/CN115261007B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130252857A1 (en) * | 2012-03-23 | 2013-09-26 | Intevep, S.A. | Completion fluid |
US20160272868A1 (en) * | 2013-06-27 | 2016-09-22 | Isp Investments Inc. | A high-temperature high-pressure (hthp) stable synthetic polymer for water based oil-well servicing fluids |
CN104910880A (zh) * | 2015-04-21 | 2015-09-16 | 西南石油大学 | 一种堵漏型高密度束缚水压井液 |
US20200131433A1 (en) * | 2018-10-25 | 2020-04-30 | Cnpc Usa Corporation | Compositions of hydraulic fracturing fluid and method thereof |
CN111778002A (zh) * | 2020-07-07 | 2020-10-16 | 中国海洋石油集团有限公司 | 一种无固相高密度完井液及其制备方法 |
Non-Patent Citations (3)
Title |
---|
刘庆旺;刘义坤;王福林;文华;范振中;: "无固相完井液性能评价及应用", 大庆石油学院学报, no. 01, pages 104 - 107 * |
岳前升;刘书杰;向兴金;: "基于储层保护的疏松砂岩稠油油藏完井液", 大庆石油学院学报, no. 05, pages 79 - 81 * |
张凤英;鄢捷年;杜春朝;徐燕东;李峰;: "雅克拉-大涝坝凝析气田油溶暂堵型低伤害修井液", 钻井液与完井液, no. 04, pages 38 - 39 * |
Also Published As
Publication number | Publication date |
---|---|
CN115261007B (zh) | 2023-08-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
Youyi et al. | Current development and application of chemical combination flooding technique | |
Chang et al. | Successful field pilot of in-depth colloidal dispersion gel (CDG) technology in Daqing oil field | |
US10947626B2 (en) | Fluoride corrosion inhibition of metal surfaces | |
AU2013402105B2 (en) | Wettability altering fluids during downhole operations | |
CN103275681B (zh) | 一种抗高温饱和盐水钻井液及其制备方法 | |
CN111534290A (zh) | 一种储层保护钻井液用解水锁剂及其制备和使用方法 | |
WO2014193507A1 (en) | Branched emulsifier for high-temperature acidizing | |
WO2015171105A1 (en) | Multiple hydrophilic head corrosion inhibitors | |
CN112111258A (zh) | 一种水锁伤害解堵剂及其使用方法、水锁伤害酸化液 | |
CN104531380A (zh) | 一种用于油田抽油管道的除蜡清洗剂的制备方法 | |
WO2014048119A1 (zh) | 一种非金属矿物地下原地钻孔溶蚀采矿新工艺 | |
CN105647491A (zh) | 一种无固相高密度压井液 | |
CN112226220A (zh) | 一种高温酸化缓蚀剂及其制备方法 | |
US10961441B2 (en) | Acidizing solution for dissolution of clay mineral and preparation method thereof | |
CN104109510B (zh) | 一种无固相替浆完井保护液及其制备方法 | |
CN111499527A (zh) | 一种交联酸体系耐高温酸化缓蚀剂的制备方法与应用 | |
CN101255332A (zh) | 一种无固相抗高温石油完井工作液 | |
CN115261007B (zh) | 一种海洋油田完井液及返排资源化处理方法 | |
CN111574445B (zh) | 一种水溶性硫化二聚体喹啉季铵盐缓蚀剂及其制备方法和应用 | |
Area et al. | Deepwater program: Literature review, environmental risks of chemical products used in Gulf of Mexico deepwater oil and gas operations | |
Hsie et al. | The Quarantine Bay 4RC CO2 WAG Pilot Projects: A Postflood Evaluation | |
CN110746952A (zh) | 一种用于油井解堵的生物溶剂 | |
CN106928943B (zh) | 一种替代CaBr2的强抑制低腐蚀盐水完井液及其制备方法 | |
CN109370554A (zh) | 一种复合型清防蜡剂 | |
Jordan et al. | “Red” Vs.“Green” Scale Inhibitors For Extending Squeeze Life-A Case Study From North Sea, Norwegian Sector |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |