乙烯基磺酸聚合物及钻井液体系的研究与应用

介绍了乙烯基磺酸聚合物处理剂的设计与合成,考察了该体系的热稳定性和耐盐能力.室内及现场试验结果表明,乙烯基磺酸聚合物抗盐、降滤失和防塌能力强,热稳定性好,适用于各种水基泥浆体系.     

深井钻井液技术在塘参一井的应用研究

优选出适应于三塘湖盆地地层特点的两性离子聚合物磺化泥浆体系，以低密度成功地钻完１口参数井——塘参一井，现场实践表明，该钻井液抑制性强，抗温抗污染强，造壁封堵抑制效果好，泥浆性能稳定，提高了钻速．     

钻井液用强抑制剂JT900研制及应用

本文从合成原理、性能测评及实际应用几个方面，详细介绍了新研制的抑制性处理剂ＪＴ９００．该处理剂具有抗钙、抗温和防坍的作用，用于两性离子聚合物钻井液体系，增强了其抑制泥页岩的能力．在吐哈油田使用，取得良好效果．     

适于塔里木油田克拉区块高密度钻井液的配制

克拉区块生储盖层钻遇第三系吉迪克组和下第三系膏盐层,含大段泥页岩和盐膏层,平均地层压力系数高.针对这一特点,优选出一种适合该区块的高密度钻井液体系,然后对塔里木油田常用加重剂、高分子聚合物增黏剂、降滤失剂进行筛选,并对处理剂的加量进行室内试验,确定出该区块的钻井液配方.该配方抑制性好,抗温性高,具有良好的流变性,高温高压滤失量低,能够满足克拉区块钻井工程及储层保护工作需要.     

乙烯基磺酸聚合物及钻井液体系的研究与应用

介绍了乙烯基磺酸聚合物处理的设计与合成,考察了该体系的热稳定性和耐盐能力,室内及现场试验结果表明,乙烯基磺酸聚合物抗盐,降滤失和防塌能力强,热稳定性好,适用于各种水基泥浆体系。     

克服红层坍塌用的新型泥浆—聚丙烯酰胺、饱和盐水、氯化钾加重泥浆

前言 胜利油田在深部地层找油找气的工作中,为了探明深部地层的情况,几口探井都在沙河街地层下部遇到红色及兰灰色泥岩——统称为红层。由于红层水化膨胀性很强,给钻井工作带来很大困难,几口探井都未能钻穿红层。因此寻找新的泥浆及处理剂抑制红层的水化膨胀是打开深部勘探局面的关键之一。针对这个问题,我们与胜利油田钻井指挥部泥浆总站及4068井队配合,在东风5号井的泥浆工作方面做了一些工作,取得一些效果;钻穿红层600     

两性离子聚合物调剖剂的合成与应用

文章介绍了由丙烯酰胺和三甲基烯丙基氯化铵合成的两性离子聚合物，作为油田用调剖剂，具有抗温、抗盐等性能，且成本低廉。     

AA-IPPA聚合物的合成及性能研究

介绍了以三氯化磷(PT)、丙酮(AC)和冰醋酸(HA)为原料合成异丙烯膦酸(IPPA)单体的方法,然后用该单体和丙烯酸(AA)共聚得到AA-IPPA聚合物。讨论了聚合条件(如引发剂用量、温度、聚合时间,原料配比等)对聚合物性能的影响。根据钻井泥浆降粘剂分子结构的特点及其作用机理,把该聚合物用作钻井泥浆降粘剂。性能评价试验结果表明,AA-IPPA二元聚合物有很好的降粘效果,抗温能力较强,与丙烯酸均聚物相比,有较好的抗盐能力。     

耐温抗盐驱油用化学剂研究进展

综述了近年来国内外耐温抗盐驱油用聚合物和驱油用表面活性剂研究现状和取得的主要成果,驱油用聚合物研发主要通过耐温抗盐功能单体共聚的方式或特殊分子结构控制的方式提高其耐温抗盐性能,已开发出缔合型、两性离子型、嵌段结构、星型结构、交联结构等系列聚合物;驱油表面活性剂研发通过合成原料优化和分子结构改进的方式已有甜菜碱型、阴非两...     

两性离子聚合物钻井液低温流变特性研究

两性离子聚合物钻井液在高原冻土钻探的成功应用对于实现钻井液的低温流变调控意义重大。以HT为主处理剂的两性离子聚合物钻井液作为研究对象,对钻井液在低温条件下的流变性能进行了测试。利用多元回归分析和最小二乘法对试验数据进行统计学分析。结果表明,宾汉模式可作为描述该两性离子聚合物钻井液低温流变特性的优选模式。基于此,计算出该钻井液配方在不同温度下的流变参数,以探究钻井液流变性能随温度降低的变化规律;并就该钻井液的低温流变特征进行了评价。进一步采用傅里叶红外光谱试验和扫描电镜试验就该两性离子聚合物对钻井液低温流变调控机理进行了探讨。     

深井盐膏及盐水地层固井隔离液体系研究

目前国内深井多钻遇盐膏和盐水地层,常用隔离液体系抗温和抗盐能力较差,温度超过100℃时,在低浓度盐作用下体系失稳沉降严重,易造成固井施工复杂,注替安全隐患极大。选用一种多糖聚合物作为高温抗盐悬浮稳定剂,辅以耐盐的降失水剂及流型调节剂,研制了一套高温抗盐隔离液体系。该体系在钠盐、钙盐和镁盐溶液中均能保持稳定的性能;使用温度可达140℃;具有较好的密度调控能力,在1.3～2.4g/cm3可调;且与常规钻井液、水泥浆具有较好的相容性。该套体系有望应用在深井超深井及盐膏地层、复合盐岩层和盐水地层固井注水泥作业中。     

西非L-2000区块巨厚盐膏层钻井液技术

西非L-2000区块是中国石化在海外的重点勘探区块,埃詹加组是一套巨厚盐膏层,最大厚度达到1 226 m。前期施工井在埃詹加组均出现过缩径、卡钻、划眼困难、测井和下套管遇阻等井下复杂情况,其中2口井造成工程报废。对巨厚盐膏层钻井液技术难点进行了分析,制定了针对性技术对策。通过主处理剂优选,在原聚合物饱和盐水钻井液的基础上,开发了复合离子欠饱和盐水钻井液配方。室内实验表明,复合离子欠饱和盐水钻井液具有良好的沉降稳定性、抗钙侵、抗劣质土污染能力和防塌抑制性,根据其特点,制定了钻井液现场维护措施。LT-1井和LT-2井的应用表明,复合离子欠饱和盐水钻井液现场维护处理简单、性能稳定,盐膏层段井径规则,无缩径、卡钻复杂情况发生,平均井径扩大率分别为17.8%和12.5%。复合离子欠饱和盐水钻井液体系是适合该区块巨厚盐膏层钻井施工的成功钻井液体系。     

车古区块钻井液技术研究及应用

车古区块是富台油田新的产油区,油气埋藏较深．先期使用普通聚磺钻井液体系进行油层井段钻进,机械钻速低;砂岩易形成虚厚泥饼,造成起下钻阻卡及渗透性漏失的复杂情况;由于普通聚磺体系固相含量高,油层易受污染．通过改用低固相钻井液体系施工,保证了施工顺利,无复杂事故发生;保护了油气层;提高了机械钻速．低固相钻井液体系的成功应用表明该体系适应本区块地层特点,有助于本区块的进一步勘探开发．     

封面人物简介—罗平亚

Luo ping-ya, male, Han nationality, a Communist Party member, was born in July 1940 in Changlong Sichuang Province. Professor, the tutor of doctor, the academician of the Chinese Academy of Engineering, the Former President of Southwest Petroleum University, the Former Director of the Academic Committee in the State Key Laboratory of "Oil and Gas Reservoir Geology and Exploitation" . For the past 40 years, he has been committed to the teaching and research on the exploration and exploitation of Oil and Gas and has Obtained lots of great achievements on fields such as, drilling and completion fluid technique, reservoir protection technique, theory and application technique on oilfield chemistry. These achievements are mainly summarized as follows: First, study on deep wells drilling fluid with high temperature resistance: In the mid-1970s, he proposed to improve the performance of the mud taking the advantage of high temperature and established the new ultra-deep mud system (anti-high temperature sulfonated mud system) of "the more deep the well, the higher the temperature, the longer the action time, the better the performance, the more simple the process, the lower the cost " , providing the necessary technical support for the success of deep well drilling. This system is still the main component of deep well mud technology in China and has been widely used.Second, Polymer Mud Technology: During the 1980s, he advanced that amphoteric polymers can be used for drilling mud agent and developed a series of new polymer treating agents and matching technology, which is one of the main components and development direction and is still being widely used. Third, Drilling and Completion fluid technique for reservoir protection: He proposed the point of shielding temporary plugging technique for reservoir protection and developed matching technology series, which solved the reservoir protection problems when drilling in oil layers using drilling fluid under positive pressure gradient and made great economic and social benefits. This technology is still being widely used. Fourth, the development of water-soluble polymer with heat and salinity tolerance, anti-shearing, efficient and viscosified: It provides the necessary theoretical basis and material guarantee for the establishment of various of displacement fluid system which is suit for enhancing recovery by chemical flooding in China.Besides, he also obtained great achievements on hole stabilization, horizontal drilling technology, oil-displacement mechanism by chemical flooding, application of seepage of physical chemistry, reservoir protection technology during oil production, Theory and Application Techniques of oilfield applied chemistry engineering and so on.He has presented and accomplished more than 40 research tasks belonging to Ministerial and provincial levels and obtained more than 30 awards of science and technology (including excellent teaching achievements) of which include 7 national awards and 13 Ministerial and Provincial Level awards( of which 3 are rated as CNPC ten annual excellent results ) and published 6 works and more than 100 papers, as well as cultivated more than 90 masters and doctors.Since he has obtained series of outstanding achievements both in scientific research and teaching, he is commended 6 times by government and rated as model worker and advanced teacher belonging to Ministerial and Provincial Level. He was granted as A NATIONAL JUNIOR EXPERT OF OUSTANDING CONTRIBUTION in 1986 and was approved AN EXPERT ENJOYING SPECIAL GOVERNMENT ALLOWANCE in 1990. He obtained Sun Yue-qi Energy Award in 1993 and became the academician of the Chinese Academy of Engineering in 1995. He is also the member of the third and fourth subject review groups of the State Council High Degree Committee, the member of High Degree Committee in Sichuan province, deputy to the sixth and seventh NPC, deputy to the sixth Sichuan provincial Party Congress and the 2000th national advanced worker.     

页岩气钻水平井段岩屑床破坏及岩屑运移机理研究

针对页岩气开采成本高,以及清水钻井在垂直井段具有成本低和机械钻速快的优点,且页岩气清水钻井岩屑运移规律尚认识不清。基于流体力学基本控制方程和湍流输运方程,建立了三维井眼环空岩屑运移模型。使用全隐式多网格耦合求解技术进行数值计算。利用该模型开展清水钻水平井段岩屑运移可行性研究,以及钻井液排量、岩屑床高度、岩屑粒径、清水黏度和钻柱转速对岩屑运移规律的影响研究。研究表明,在水平井段清水钻井液携岩是可行的,数值计算结果对比,得出钻井液排量、岩屑床高度和岩屑粒径是影响清水携岩能力的敏感参数。建议钻井过程岩屑床厚度不要超过井眼直径的10%,岩屑颗粒直径为5 mm左右,根据钻井需要选用合适的钻井液排量、钻井液黏度和钻柱转速。清水钻井岩屑运移机理研究可为页岩气安全高效开采提供技术支撑,同时将加快页岩气工程的开发进程。     

淀粉丙烯酰胺接枝共聚物降滤失剂的合成及性能

以淀粉和丙烯酰胺为原料,以硝酸铈胺为引发剂,通过正交实验较详细地考察了引发剂用量、淀粉与丙烯酰胺配比及反应介质ｐＨ 值对聚合反应和聚合产物降滤失性能的影响,得到了淀粉与丙烯酰胺聚合反应合成淀粉－ 丙烯酰胺接枝共聚物用作降滤失剂的最优化条件．室内配浆实验表明：在优化条件合成的淀粉－ 丙烯酰胺接枝共聚物在淡水泥浆中有较好的降滤失作用及增稠作用．在４％ 盐水泥浆及饱和盐水泥浆体系中有良好的降滤失效果和抗温性能．     

新型两性离子聚合物页岩抑制剂的制备及性能评价

针对泥页岩储层段黏土矿物含量较高,钻井过程中易发生井壁失稳现象等问题,以小分子有机胺(LCA-2)、二甲基二烯丙基氯化铵(DMDAAC)、2-丙烯酰胺-2-甲基丙磺酸(AMPS)和甲基烯丙醇聚氧乙烯醚(HPEG)为单体,制备了一种两性离子聚合物页岩抑制剂DDM-1。采用红外光谱对其结构进行了表征,结果表明其分子结构符合预期设计。考察了DDM-1的抑制性能、耐温抗盐性能和对钻井液性能的影响,结果表明,加入1.0%DDM-1可以使泥页岩钻屑滚动回收率达到90%以上,并具有良好的抑制膨润土造浆能力,抑制效果明显优于无机盐类抑制剂;同时具有良好的耐温抗盐性能;DDM-1对现场钻井液体系的流变性和滤失量的影响较小,具有较好的配伍性,且抑制性强于国内同类产品,与国外产品效果相当。说明DDM-1是一种性能优良的泥页岩抑制剂,能够满足高性能水基钻井液对强抑制性的要求。     

泥饼强度影响因素研究

用ＦＣＰ－２０００泥饼针入度仪对吐哈油田常用聚合物泥浆和聚磺泥浆体系中影响泥饼质量的因素进行了系统研究．结果表明体系中固相颗粒的含量及其粒度分布对泥饼强度的影响最大．虽然作用机理不同,但起抑制和封堵作用的处理剂都能提高泥饼强度,而尤以含有钾铵基聚合物的泥浆的泥饼强度最大．实验中还发现一具有规律的异常现象,即压力增加时,泥饼致密层变厚,但其强度却降低．现场泥浆检测标明,钾铵基聚磺泥浆具有最好的泥饼强度,最高可达４００ｇ以上．对水基钻井液体系而言,一般泥饼强度为２００ｇ左右即能满足工程要求．