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STUDY ON LIQUID CRYSTAL POLYMERS WITH TWO-DIMENSIONAL MESOGENIC UNITS 被引量:1
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作者 张春晓 李自法 +1 位作者 周其凤 周洪兵 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1993年第4期58-63,共6页
A series of liquid crystalline polymers with two-dimensional mesogenic units were synthesized by solution polycondensation at low temperature. All the polymers were liquid crystalline. The melting temperature T;(exce... A series of liquid crystalline polymers with two-dimensional mesogenic units were synthesized by solution polycondensation at low temperature. All the polymers were liquid crystalline. The melting temperature T;(except that with substituent of methoxy) and the clearing temperature T;of the polymers change regularly with varying of the length of the alkyl substituent groups. 展开更多
关键词 liquid crystal polymer Two-dimensional mesogenic unit N-2 ' 5 '-dihydroxy benzylidene-4-alkoxyaniline Monotropic nematics
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LIQUID CRYSTAL POLYMERS WITH TWO-DIMENSIONAL MESOGENIC UNITS 被引量:1
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作者 Qi Feng ZHOU Zhi Cai Robert W.LENZ 《Chinese Chemical Letters》 SCIE CAS CSCD 1991年第8期659-660,共2页
A series of 'liquid crystal polymers with two-dimensional mesogeuic units' were synthesized by the polycondensations of the monomer 2, 5-dihydroxybenzylidene-4-phenetidine with a diacid chloride selected from ... A series of 'liquid crystal polymers with two-dimensional mesogeuic units' were synthesized by the polycondensations of the monomer 2, 5-dihydroxybenzylidene-4-phenetidine with a diacid chloride selected from a series of α, ω-bis(4-chloroformylphenyloxy)carbonylalkues. This is the first series of polymers reported under the newly proposed concept 'liquid crystal polymers with two dimensional mesogenic units'. 展开更多
关键词 liquid CRYSTAL POLYMERS WITH TWO-DIMENSIONAL MESOGENIC unitS
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SYNTHESIS OF MAIN CHAIN LIQUID CRYSTALLINE COPOLYESTERS WITH X-SHAPED TWO-DIMENSIONAL MESOGENIC UNIT AND CROWN ETHER CYCLE
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作者 Jing-wu Wang Shi-jun Zheng +5 位作者 Xiao-hui Xu Xing-qi Zhu Shu-yuan Zhang Tie-sheng Li Zi-fa Li Qi-feng Zhou 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2005年第5期549-556,共8页
A novel series of main chain liquid crystalline copolyesters with X-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4'-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 was prepared via solution conde... A novel series of main chain liquid crystalline copolyesters with X-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4'-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 was prepared via solution condensation polymerization from 4,4'-(a;arhexanedioyloxy) dibenzoyl dichloride (MI), 2,5-bis(p-octyloxybenzoyloxy) hydro-quinone (M2) and cis-4,4'-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 (M3). Monomer MI was synthesized by esterification and substitution of adipoyl chloride with p-hydroxybenzoic acid, monomer M2 was synthesized by esterfication and reduction reaction of 2,5-dihydroxybenzoquinone and p-octanoxybenzoyl chloride and monomer M3 was synthesized by diazotization and coupling reaction of cis-diaminodibenzo-18-crown-6 with phenol. The molecular weights of copolyesters are not high, and the intrinsic viscosity [η] of copolyesters ranges from 0.25-0.35. The monomers' structures were identified by using elemental analysis, IR, UV, ^1H-NMR, MS, etc. All the copolyesters are yellowish powders and insoluble in THF and CHC13 at room temperature except cPg. The properties of copolyesters were investigated by using GPC, [η] , DSC, TG, WAXD and POM. It was found that all the copolyesters entered into liquid crystal phase when they were heated to above their melting temperature (Tin). The typical smectic and nematic phase texture can be observed on POM. Their mesophase transition temperature and thermal stability change regularly with varying the content of cis-4,4'-bis(4-hydroxyphenylazo) dibenzo-18-crown-6 unit in the copolyesters. 展开更多
关键词 X-shaped two-dimensional mesogenic unit Crown ether liquid crystalline copolyesters Synthesis.
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SYNTHESIS OF LIQUID CRYSTALLINE COPOLYESTERS WITH T-SHAPED TWO-DIMENSIONAL MESOGENIC UNIT AND CROWN ETHER CYCLE
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作者 张晓静 李自法 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2008年第2期171-176,共6页
A novel series of liquid crystalline copolyesters with T-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4′-bis(4-hydroxyphenylazo)dibenzo-18-crown-6 was prepared via solution condensation polyme... A novel series of liquid crystalline copolyesters with T-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4′-bis(4-hydroxyphenylazo)dibenzo-18-crown-6 was prepared via solution condensation polymerization from 4,4′-(α,ω-hexanedioyloxy)dibenzoyl dichloride(M_1),2-(4′-ethoxyphenyl)hydroquinone(M_2)and cis-4,4′-bis(4- hydroxyphenylazo)dibenzo-18-crown-6(M_3).The molecular weights of copolyesters are not high,and the intrinsic viscosity [η]of copolyesters ranges from 0.29-0.43.The monomers ... 展开更多
关键词 T-shaped two-dimensional mesogenic unit Crown ether liquid Crystalline copolyesters Synthesis.
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SYNTHESIS AND CHARACTERIZATION OF MAIN CHAIN AROMATIC LIQUID CRYSTAL COPOLYESTERS WITH X-SHAPED AND ROD-SHAPED MESOGENIC UNITS
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作者 李自法 李磊 +4 位作者 张淑媛 郑世军 曹少魁 赵丽婷 周其凤 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1998年第1期48-55,共8页
A series of main chain liquid crystal aromatic copolyesters with X-shaped and rod-shaped mesogenic units were synthesized via solution condensation polymerizations of 4,4'-(alpha,omega-octanedioyloxy)-dibenzoyl di... A series of main chain liquid crystal aromatic copolyesters with X-shaped and rod-shaped mesogenic units were synthesized via solution condensation polymerizations of 4,4'-(alpha,omega-octanedioyloxy)-dibenzoyl dichlorides with 2,5-bis(p-octanoxy benzoyloxy)-hydroquinone and diphenol. All of the copolyesters showed thermotropic liquid crystalline behaviors through observations using DSC, polarized microscopy and X-ray diffraction. The melting point (T-m) and the isotropization temperature (T-i) change regularly with varying the content of diphenol unit in the copolymers. 展开更多
关键词 liquid crystal polymer X-shaped and rod-shaped mesogenic units aromatic copolyester synthesis and characterization
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SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTAL POLYMERS WITH T-SHAPED TWO-DIMENSIONAL MESOGENIC UNITS (Ⅱ)
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作者 李自法 郑世军 +4 位作者 张淑媛 曹少魁 李磊 刘广胜 周其凤 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1997年第1期65-73,共9页
A series of liquid crystalline polymers with T-shaped two-dimensional mesogenic unitswere synthesized via low temperature solution polycondensation of 2-(4'-alkoxy-phenyl)hydroquinone with various diacyl dichlorid... A series of liquid crystalline polymers with T-shaped two-dimensional mesogenic unitswere synthesized via low temperature solution polycondensation of 2-(4'-alkoxy-phenyl)hydroquinone with various diacyl dichlorides. The polymers were found to be nematic andshown thermotropic liquid crystalline behaviors through observations using DSC, polarizedmicroscopy and X-ray diffraction. The melting temperature T_m and the isotropizationtemperature T_i of the polymers change regularly with varying of the monomer structures. 展开更多
关键词 T-shaped two-dimensional mesogenic units liquid crystal polymer Polymer synthesis
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SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTAL POLYESTERS WITH T-SHAPED TWO-DIMENSIONAL MESOGENIC UNITS(Ⅲ)
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作者 周其凤 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1999年第5期483-490,共8页
A new series of liquid crystal polyesters with T-shaped two-dimensional mesogenic units weresynthesized by melt polycondensation of the diacetates of 2-(4'-alkoxy -phenyl)-hydroquinones with 4,4'-alkylenedioxy... A new series of liquid crystal polyesters with T-shaped two-dimensional mesogenic units weresynthesized by melt polycondensation of the diacetates of 2-(4'-alkoxy -phenyl)-hydroquinones with 4,4'-alkylenedioxydibenzoic acid. The polymers were characterized by using polarized microscopy, DSC and X-ray diffraction. It was realized that all the polymers have nematic thermotropic liquid crystallinecharacteristics. The melting temperature (T_m) and isotropization temperature (T_i) of the polymers changeregularly with varying lengths of the alkoxy side group and the length of the alkylene group in the main chainin company with an even-odd effect. The mesophase temperature range also varies regularly with the polymerstructure. It is shown that the mesophase range has been widened. 展开更多
关键词 T-shaped two-dimensional mesogenic units liquid crystal polyester Synthesis and characterization
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SYNTHESIS AND CHARACTERIZATION OF LIQUID CRYSTAL POLYMERS WITH T-SHAPED TWO-DIMENSIONAL MESOGENIC UNITS
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作者 李自法 陈志军 +2 位作者 张淑媛 曹少魁 周其凤 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 1996年第1期71-79,共9页
Two series of new liquid crystalline polymers with T-shaped two-dimensional mesogenic units were synthesized by low temperature solution polycondensations of 4-substituted N-2, 5-dihydroxybenzylidene aniline monomers ... Two series of new liquid crystalline polymers with T-shaped two-dimensional mesogenic units were synthesized by low temperature solution polycondensations of 4-substituted N-2, 5-dihydroxybenzylidene aniline monomers with different diacyl dichlorides. The polymers were found to be nematic and shown liquid crystalline behavior. The melting temperature T-m and the clearing temperature T-i of the polymers change regularly with varying of the monomer structures. 展开更多
关键词 liquid crystal polymer T-shaped two-dimensional mesogenic unit N-2 5-dihydroxybenzylidene-4-substituted aniline
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A Comparative Study for the Development of Coal-to-Liquids Industries in China, South Africa and United States
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作者 Yiming Li Changqing Li 《Green and Sustainable Chemistry》 2019年第3期85-93,共9页
Many energy consuming countries have carried out research, development, demonstration, planning and deployment of coal-to-liquids (CTL) because of its ability to replace oil imports by converting coal resources into f... Many energy consuming countries have carried out research, development, demonstration, planning and deployment of coal-to-liquids (CTL) because of its ability to replace oil imports by converting coal resources into fuel. Among them, China and South Africa successfully had their CTL technology industrialized, while the United States did not. To understand the differences in the industrial development level, a comparative study is necessary. This paper compares the history, driver and policy of CTL industry in China, South Africa and United States, collates and discloses numbers of industry details for the first time. We figure out that the motivation, top level planning and policy consistency are the key indicators of the difference on the industrial development level. Among them, the key to the success of CTL industrialization in China and South Africa is the government’s strong and stable determination to improve energy security, which provides a stable top-level planning and robust policy support. The failure of CTL in United States is caused by the shift of policy attention after its energy security situation improved. 展开更多
关键词 Coal-to-liquids Comparative Study China unitED STATES SOUTH AFRICA
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基于融合模型的联合站能耗优化技术研究
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作者 高岩 《石油石化节能与计量》 CAS 2024年第4期36-40,共5页
联合站是油田集输系统中的耗能大户,为降低生产运行能耗,在收集和整理现场SCADA(数据采集与监视控制系统)数据的基础上,对数据进行完整性、重复值和异常值校验,利用箱线图识别超过工况范畴的异常值,对缺失值采用三次样条曲线进行重构,... 联合站是油田集输系统中的耗能大户,为降低生产运行能耗,在收集和整理现场SCADA(数据采集与监视控制系统)数据的基础上,对数据进行完整性、重复值和异常值校验,利用箱线图识别超过工况范畴的异常值,对缺失值采用三次样条曲线进行重构,再对能耗影响因素进行相关性分析,并代入支持向量机模型建立吨液综合能耗和影响因素之间的非线性关系,最后采用粒子群算法实现联合站能耗的持续优化。结果表明:利用中位数替代异常值和三次样条曲线重构缺失值,对于数据清洗的效果较好,清洗后数据完整性大幅提升;加热炉耗气量和处理液量对吨液综合能耗的影响较大,说明热力消耗在能耗中的占比较大;优化后,联合站的单位液量气耗、单位液量电耗、单位液量综合能耗均有所下降,预计全年节约运行费用26.6万元。研究结果可为联合站运行方案的制定提供实际参考。 展开更多
关键词 清洗数据 数据校验 支持向量机 粒子群算法 单位液量综合能耗
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糠醛精制装置工艺优化降低抽出油溶剂含量 被引量:1
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作者 魏川林 《炼油技术与工程》 CAS 2024年第1期18-21,共4页
糠醛精制装置受糠醛结焦温度所限,抽出油回收系统经三效蒸发后,汽提塔底温度难以进一步提高。在加工高芳烃原料时,因溶剂对芳烃溶解性好,产品抽出油溶剂含量高。采用抽出液二次加热的方法可以提高抽出油汽提塔底温度,对降低抽出油溶剂... 糠醛精制装置受糠醛结焦温度所限,抽出油回收系统经三效蒸发后,汽提塔底温度难以进一步提高。在加工高芳烃原料时,因溶剂对芳烃溶解性好,产品抽出油溶剂含量高。采用抽出液二次加热的方法可以提高抽出油汽提塔底温度,对降低抽出油溶剂含量效果较好。通过模拟计算得出安装抽出液二次加热器的最优位置,推荐设置在三效蒸发塔与闪蒸塔之间,相比无二次加热可以降低抽出油溶剂含量约83.1%。计算得出汽提塔最优汽提蒸汽用量为塔底抽出油量的5%,汽提塔顶温度和汽提塔底抽出油溶剂含量近似成反比关系,但汽提塔顶温度的提高需要注意塔顶气中携带油的影响。小负荷运行或者设计加工量较小的装置,通过设置抽出油循环流程,可提高汽提塔底温度,有利于降低汽提塔底溶剂含量。通过设置抽出油二次加热、抽出油循环流程,优化汽提塔操作压力、塔顶温度、汽提蒸汽量等,实际运行可以将抽出油溶剂质量分数控制在小于150μg/g,降低了装置溶剂消耗。 展开更多
关键词 糠醛精制装置 二次加热 抽出液 抽出油 溶剂含量 汽提塔压力 汽提蒸汽比例
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煤制甲醇净化装置扩产探析
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作者 雷朝红 《煤化工》 CAS 2024年第2期26-29,共4页
某企业60万t/a煤制甲醇装置原环保工艺难以满足现标准要求,因此对其净化装置进行了改造。分析了四种不同改造方案,确定了改造重点为净化系统扩能改造;探析了采用半贫液流程的两种净化扩能改造方案,确定了采用新增甲醇洗涤塔及附属设备... 某企业60万t/a煤制甲醇装置原环保工艺难以满足现标准要求,因此对其净化装置进行了改造。分析了四种不同改造方案,确定了改造重点为净化系统扩能改造;探析了采用半贫液流程的两种净化扩能改造方案,确定了采用新增甲醇洗涤塔及附属设备的方案B。改造后的运行结果表明:装置各项性能指标达到考核要求,产品产量比原设计提高10%,年运行费用节约2 000余万元。 展开更多
关键词 煤制甲醇 净化装置 低温甲醇洗 半贫液流程 扩产
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液冷服务器在数据中心的应用研究
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作者 曹原铭 陈婉新 +2 位作者 郑云帆 雷鸣 梁焱瑞 《电信工程技术与标准化》 2024年第4期5-12,共8页
风冷服务器使用空气作为换热介质进行散热,制冷效率较低。同时,单芯片算力密度的增加和AI服务器的出现使得风冷散热逐渐成为瓶颈。液冷服务器使用工质水或者氟化液等液体作为换热介质,相同流量的液体相比空气散热能力有大幅提升,能够有... 风冷服务器使用空气作为换热介质进行散热,制冷效率较低。同时,单芯片算力密度的增加和AI服务器的出现使得风冷散热逐渐成为瓶颈。液冷服务器使用工质水或者氟化液等液体作为换热介质,相同流量的液体相比空气散热能力有大幅提升,能够有效解决大功耗芯片和设备的散热问题,同时降低PUE值,逐步成为一种数据中心制冷新型解决方案。本文介绍了液冷技术的优势,分析了不同的液冷技术路线,提出了冷板式液冷服务器的技术要求和对机房环境的要求,为在数据中心部署液冷服务器提供了实践指导。 展开更多
关键词 冷板式液冷 浸没式液冷 CDU 冷却液 快接头
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提高碳四综合利用装置中异丁烷产量的措施
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作者 李迎春 《精细石油化工进展》 CAS 2024年第2期54-58,共5页
中国石油化工股份有限公司金陵分公司碳四综合利用装置以炼油厂碳四为原料,充分利用全厂碳四资源,生产高纯度异丁烷,同时副产烯烃和正丁烷。受原料影响,装置新增正丁烷异构化单元,异丁烷产量达到53 t/h,仍不能满足需求。研究发现:成品... 中国石油化工股份有限公司金陵分公司碳四综合利用装置以炼油厂碳四为原料,充分利用全厂碳四资源,生产高纯度异丁烷,同时副产烯烃和正丁烷。受原料影响,装置新增正丁烷异构化单元,异丁烷产量达到53 t/h,仍不能满足需求。研究发现:成品塔运行工况严重制约异丁烷产量提升,从优化原料配比、降低异丁烷损耗、提高正丁烷异构收率等方面提出相应解决措施,增产异丁烷5.5 t/h。此外,在异构化单元稳定塔后新增粗异丁烷塔,可增产异丁烷至65 t/h,能够满足市场需求。 展开更多
关键词 碳四利用 异丁烷 异构化单元 萃取精馏
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使用脱丙烷精馏塔生产LPG的创新方法研究及应用
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作者 马振华 杨勇 +3 位作者 邹浪 李宝强 李春辉 王吉成 《四川化工》 CAS 2024年第4期14-17,48,共5页
在对某石化单位天然气处理装置分馏单元系统原理研究的基础上,通过调整压力、流量和温度等工艺参数以及流程优化实现停用脱丁烷精馏塔及相关附属设备,仅运行脱丙烷精馏塔及相关附属设备生产液化气(LPG)和轻烃产品,从而在实现经济效益的... 在对某石化单位天然气处理装置分馏单元系统原理研究的基础上,通过调整压力、流量和温度等工艺参数以及流程优化实现停用脱丁烷精馏塔及相关附属设备,仅运行脱丙烷精馏塔及相关附属设备生产液化气(LPG)和轻烃产品,从而在实现经济效益的同时,达到节能减排的目的。对比前后运行数据,每年将产生经济效益438万元,节能减排53tce。 展开更多
关键词 分馏单元 脱丙烷精馏塔 参数调整 液化气 节能减排
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RPC物理性能与基本力学性能试验研究
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作者 满晨 《西安交通工程学院学术研究》 2024年第2期5-8,22,共5页
活性粉末混凝土(RPC,Reactive Powder Concrete)是一种新型水泥基复合材料,其以石英砂、各类活性掺合料、水泥为基材,加入高效减水剂以得到极低的水胶比,再掺入钢纤维,经过试拌,得到合理的配合比,最后经高温蒸压养护而成,最终制成具有... 活性粉末混凝土(RPC,Reactive Powder Concrete)是一种新型水泥基复合材料,其以石英砂、各类活性掺合料、水泥为基材,加入高效减水剂以得到极低的水胶比,再掺入钢纤维,经过试拌,得到合理的配合比,最后经高温蒸压养护而成,最终制成具有极高的韧性、强度和耐久性的超高性能混凝土。本文研究不同钢纤维掺量(0,0.5%,1%,2%,2.5%)下,RPC的物理性能(流动度、容重)及基本力学性能(的抗压强度、抗折强度)的变化规律。研究发现,当钢纤维体积掺量从0上升至2.5%时,RPC的流动度由138.2mm降低到133.5mm,降低了4.7mm;容重由原来的2413kg/m^(3)增加到2578kg/m^(2),增加了165kg/m^(2);立方体抗压强度由原来的87.5MPa提高到139.7MPa,抗压强度提高了60%;抗折强度从7.2MPa提高到18.5MPa,提高了156%。因此,钢纤维的掺入可以使RPC的力学性能得到显著改善。 展开更多
关键词 RPC 流动度 容重 力学性能
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催化裂化装置吸收稳定分离系统优化运行探讨
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作者 李继翔 《石油化工设计》 CAS 2024年第3期51-57,I0003,共8页
介绍了催化裂化装置吸收稳定单元的工艺特点及优化操作措施,结合催化裂化装置的生产实际对干气“不干”即其中携带的C_(3)及以上重分的实际,对如何控制干气中重组分含量以提高总液收进行了详细分析;也对液化石油气中C_(5)含量控制、汽... 介绍了催化裂化装置吸收稳定单元的工艺特点及优化操作措施,结合催化裂化装置的生产实际对干气“不干”即其中携带的C_(3)及以上重分的实际,对如何控制干气中重组分含量以提高总液收进行了详细分析;也对液化石油气中C_(5)含量控制、汽油蒸气压控制,实现经济效益最大化等进行了讨论;同时对本单元质量和收率控制下的能耗情况进行了说明,针对系列分析和讨论给出了相应的操作思路、控制措施以及仪表先进控制技术等的建议。 展开更多
关键词 催化裂化装置 吸收稳定 总液收 C_(3) 干气 优化操作 先进控制 效益
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7500 m^(3)LNG加注船关键技术应用
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作者 刘友坤 《船电技术》 2024年第4期33-36,共4页
本文简要介绍7500 m^(3)LNG加注船的基本配置及应用的关键技术。关键技术主要包括:柴油机催化还原装置应用、变频驱动的全回转推进器应用、LNG加注系统、船对船的加注和加注系统控制、监测与报警,为小型LNG加注兼运输船设计和建造提供... 本文简要介绍7500 m^(3)LNG加注船的基本配置及应用的关键技术。关键技术主要包括:柴油机催化还原装置应用、变频驱动的全回转推进器应用、LNG加注系统、船对船的加注和加注系统控制、监测与报警,为小型LNG加注兼运输船设计和建造提供参考。 展开更多
关键词 催化还原装置 电力推进 液货装卸 LNG 加注
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气液分离器高频异常噪声分析与改善
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作者 杜明龙 徐坤 +2 位作者 姜志成 徐亚男 李钟昀 《制冷与空调》 2024年第7期23-26,共4页
针对空调器室外机气液分离器出现1 208 Hz异常噪声的问题,基于模态测试与仿真理论,对气液分离器的内部管路进行模态测试与仿真分析。研究结果表明:该异常噪声由气液分离器的固定板与内部管路局部共振引起;模态测试与仿真的固有频率仅差6... 针对空调器室外机气液分离器出现1 208 Hz异常噪声的问题,基于模态测试与仿真理论,对气液分离器的内部管路进行模态测试与仿真分析。研究结果表明:该异常噪声由气液分离器的固定板与内部管路局部共振引起;模态测试与仿真的固有频率仅差6 Hz,且模态振型一致,说明有限元模型准确性高,可用于指导方案的优化设计,缩短验证周期;固定板采用翻边设计,且内部管路薄弱部位增加2块固定板,气液分离器的固有频率可以有效避开1 208 Hz的激振频率,使室外机的噪声值从67.6 dB(A)降低至66.5 dB(A),1 208 Hz频率下的噪声峰值从60.76 dB(A)降至35.46 dB(A),高频异常噪声消失,改善显著。 展开更多
关键词 空调器 室外机 气液分离器 噪声 模态 仿真 优化
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钻井液罐液面抗波动装置的研发与应用
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作者 妥红 张以军 +3 位作者 张耀先 杨明清 解俊昱 刘华阳 《录井工程》 2024年第2期44-48,共5页
钻井液池体积参数变化是钻井液液量增加或减少的直接显示,也是判断和预防溢流、井漏的关键参数。由于钻井液液面受搅拌器搅拌的影响,波动剧烈,给综合录井仪钻井液池体积参数准确监测造成一定的干扰,影响到溢流和井漏等工程异常的判断,... 钻井液池体积参数变化是钻井液液量增加或减少的直接显示,也是判断和预防溢流、井漏的关键参数。由于钻井液液面受搅拌器搅拌的影响,波动剧烈,给综合录井仪钻井液池体积参数准确监测造成一定的干扰,影响到溢流和井漏等工程异常的判断,也是录井作业的一个难点。为此,研发了钻井液罐液面抗波动装置,该装置由镂空式抗波动管、安装卡箍、传感器安装支架3部分构成,可大幅减少钻井液搅拌器的影响。通过现场在同一窗口安装两个同型号传感器进行监测对比得知,钻井液罐液面抗波动装置有效地降低了液面波动干扰,提高了溢漏等关键井控异常监测的精确性,为钻井工程实时决策提供了科学依据,为确保井控安全发挥了重要作用。 展开更多
关键词 综合录井仪 钻井液 池体积 液面波动 抗波动管 安装卡箍 安装支架 搅拌器
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