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双语推荐:井温曲线

本文简要介绍了存储式温仪的工作原理,重点分析了存储式温仪在产出剖面测中的应用效果,并与环空温压力短节测试出的井温曲线进行对比,阐述了存储式温仪在产出剖面流温测试中的优越性。
This paper briefly introduces the working principle of the storage type well thermometer,Selectively analysed the application effects of the storage type well thermometer in production profile logging ,compared with the well temperature curve from the well temperature and pressure nipple, Expounded the superiority of the storage type well thermometer in the flow temperature of production profile.

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根据核磁共振录仪磁体对温度场的要求,研制了一种基于FPGA的智能温控系统,给出了系统结构、工作原理和软件控制流程,并对应用效果进行了实验研究。温控系统采用PID算法控制,测量灵敏度为0.05℃,控制误差为±0.2℃,其良好的稳定性,很好地满足了均匀磁场对温度的要求。实际应用结果表明:温控及仪器系统运行稳定,测量结果可靠,仪器测量的稳定性,标定曲线的线性度都达到了要求,为核磁共振录的准确测量提供了保证。
According to the request of temperature field for the nuclear magnetic resonance ( NMR) logging in-strument , an intelligent temperature control system is developed based on FPGA .The system structure , working principle and control procession of software are given .And the effect on the applications is studied through ex-periment .Temperature control system is controlled by PID algorithm .The sensitivity is 0.05℃, the control er-ror is ±0.2℃.Its good stability meets well the requirements of the uniform magnetic field for temperature . Practical application results show that the temperature control system and instrument run stably and the measur -ing results are reliable .The stability of the measuring instrument and the linearity of calibration curve meet the requirement .These provide a guarantee for accurate measurements with NMR logging .
实验室测得的相对渗透率曲线仅代表了点取心段的流动特征,往往与实际生产特征不符,需要在数值模拟历史拟合阶段进行校正,该过程繁琐且耗时耗力。文中提出了一种利用非线性优化理论校正相对渗透率曲线的方法。该方法假定油水相对渗透率呈广泛使用的指数函数关系,通过理论计算与实际含水-采出曲线进行拟合,确定相对渗透率曲线关系式。该方法需要参数少,计算方便、速度快。通过吐哈油田温西3区块历史拟合后的相对渗透率曲线验证,校正后的相对渗透率曲线与历史拟合相对渗透率曲线更吻合,表明校正方法是可行的。校正后的相对渗透率曲线具有较好的代表性,形态良好,克服了曲线上凸。通过新的油水相对渗透曲线计算的理论含水率-采出程度曲线与实际曲线拟合较好,符合实际生产的需要,具有一定的理论和应用价值。
The relative permeability curves from laboratory measurement only represent the flow behavious of core sample and commonly do not accord with the real flow behaviors ,thus they need to be corrected through history matching .How-ever ,the process of history matching is time-consuming and labor-intensive .The current study introduces a new method to correct the relative permeability curves based on the nonlinear optimization theory and accurate experimental endpoint . Based on the assumption that the relative permeability satisfies the exponential function ,the theoretical water cut-recovery curve (fw-R) is fitted to the actual fw-R curve to obtain relative permeability curves .The new method requires fewer pa-rameters and is simple and faster .Application of the new method to Turpan-Hami Oilfield WENXI 3 block shows that the the corrected relative permeability curves fit better with the calculated relative permeability through history matching ,in-dicating this correction method is feas
东胜气田什股壕区块储层低孔、低渗、气水关系复杂,压裂改造是气田高效开发的有效手段。在水力裂缝高度影响因素分析的基础上,认为施工排量是影响裂缝高度延伸的关键可控因素。并以断裂力学理论探讨垂直裂缝的二维延伸过程,模拟计算施工排量与裂缝高度的影响关系曲线,优化出什股壕区块水平压裂施工的最优排量。成功应用于什股壕水平的压裂施工,取得了较好的效果。最后结合温测等手段,综合验证排量可以有效控制人工裂缝的高度延伸。
Shenguhao block has the characteristics of low porosity, low permeability and complex gas-water relationship in Dongsh-eng gas field. Fracturing transformation is an efficient measure to efficient develop gas field. Based on influential factors analysis of hydraulic fracture height, we considered that construction displacement was the key controllable factor to influence fracture height extension. By discussing two-dimensional extension process of vertical fracture based on fracture mechanics theory, and analog cal-culating relation curves of construction displacement and fracture height, the displacement of horizontal well fracturing in Shengu-hao block was optimized.Accordingly, this research was successfully applied in this block and achieved preferable effects. Finally, combined with temperature logging means, this paper proved that displacement could effective control height extension of artificial fractures.

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张集煤矿副井井深280.52-449.69m段有一单层厚度达169m的超厚粘土层,以膨胀性厚粘土为主,为目前国内穿越单层粘土最厚的立。根据该筒内、外层壁厚度及混凝土强度等级的不同,共布置6个监测水平,对粘土层冻结壁与壁温度场进行了实测研究。结果表明,受混凝土初期水化放热与冻结管冷量供应的影响,外壁温度变化曲线明显呈现3个阶段,即线性快速增长阶段、非线性快速下降阶段和趋于稳定阶段。冻结壁内部温度变化趋势相对较平缓,始终处于负温状态。邻近帮冻土在外壁混凝土浇筑后的2d内,达到最大融化距离,为200mm左右。邻近帮融土在外壁混凝土浇筑后的12-14d内,首先进入负温状态,即产生回冻现象。在冻结壁与外壁间铺设泡沫塑料板,可在一定程度上减小混凝土水化放热与冻结管冷量供应间的相互影响。
An auxiliary shaft of Zhangji Mine was a deep mine shaft.There was an ultra thick clay stra-tum with a thickness of 169m located in the mine shaft at a depth section from 280.52~449.69m.The ultra thick clay stratum was swelling thick clay mainly and was a single highest thick clay stratum pas-sed by a mine shaft in China.According to the thickness of the mine internal and external shaft liners and the different grade of the concrete strength ,there were 6 monitoring and measuring levels set in the mine shaft and a site measurement study was conducted on the temperatures fields of the freezing wall and the mine shaft liner in the clay stratum.The results showed that due to influenced by the ini-tial hydration heat emission of the concrete and the refrigeration supply of the freezing pipe ,a tempera-ture variation curve of the external shaft liner would have three stages obviously and they were a linear rapid increasing stage ,nonlinear rapid decreasing stage and stable stage.An inner te

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高含蜡原油生产时,油井井筒结蜡的影响因素很多也很复杂,仅通过对油样结蜡实验分析或者筒结蜡厚度的理论分析进行结蜡规律研究比较片面,现场筒蜡样实验分析及不同气油比压力下结蜡规律实验是必要的补充。以安塞油田高平2区长10油层原油及蜡样为研究对象,通过黏温曲线测定析蜡温度、原油全组分实验分析、蜡样全组分实验分析、不同气油比和压力条件下实验分析、不同产液量和含水率的理论计算分析等多种手段,全面综合地研究和认识其结蜡规律,为制定清防蜡措施提供了更详实的依据。
There are many complex factors which cause wax deposition in wellbore during the high wax content oil production. Therefore, it is not enough to research the patterns of wax deposition only by wax deposition in crude oil testing analysis or calculating the thickness of the wax deposition on the well wall. Comprehensively, it is necessary to do complement research on wax experimental analysis on the well wall in-site and wax deposition pattern study for different GOR oil sample under different pressure. Taking the crude oil and wax from Chang10 reservoir of Gaoping2 district of Ansai oil ifeld as study objective, ifve aspects are studied to overall analyze and understand patterns of wax deposition: testing wax deposition by viscosity-temperature curve, whole components experimental analysis of crude oil, wax sample whole components testing, wax deposition testing in different GOR and different pressure condition, and wax deposition thickness calculating on the well wall under different

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为解决固降滤失剂普遍存在的抗温能力差、与其他外加剂配伍性欠佳以及综合性能差等问题,选用2丙烯酰胺基2甲基丙磺酸(AMPS)、N ,N 二甲基丙烯酰胺(DMAM)和丙烯酸(AA)为共聚单体,采用水溶液聚合法制得共聚物AMPS/DMAM/AA。对共聚物AMPS/DMAM/AA的微观结构进行了分析,并对其性能进行了评价,结果表明:各单体都参与了聚合,共聚物分解温度为380℃;淡水基浆中该共聚物加量超过3%时,在温度不高于120℃时,可将滤失量控制在100 m L以内,且水泥浆初始稠度低,过渡时间短,稠化曲线线形良好,抗压强度适中,没有过度缓凝现象;饱和NaCl盐水基浆中该共聚物加量超过4%时,可将滤失量控制在80 mL以内。这表明AM PS/DM AM/AA共聚物降滤失剂的抗温、抗盐能力强,与其他外加剂、尤其是高温缓凝剂配伍性好,以该共聚物为降滤失剂的水泥浆具有很好的综合性能。
In order to improve the temperature‐resistance performance of some domestic fluid loss addi‐tives and to understand their poor compatibility with other additives as well as their comprehensive proper‐ties ,a cement fluid loss additive was synthesized using monomers acrylic acid (AA) ,2‐acrylamido‐2‐meth‐yl‐propane sulphonic acid (AMPS) and N ,N‐dimethyl acrylamide(DMAM)through aqueous solution poly‐merization .The micro‐structural characterization of AMPS/DMAM/AA was analyzed and its performance was tested .The result showed that copolymer AMPS/DMAM/AA has the structure of all monomers and can resist high temperatures up to 380℃ .When the amount of AMPS/DMAM/AA was more than 3.0 % , the filtration of fresh‐water cement slurry can be reduced to less than 100 mL .Moreover ,the cement slurry has excellent properties such as low initial consistency ,short transition time ,good thickening curve without far delayed solidification and appropriate compressible strength .

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闸墩混凝土温控防裂是一个与温控措施和材料参数相关的复杂多因素系统优选问题,本文尝试已知混凝土热力学材料参数情况下的温控措施优选,将闸墩混凝土结构内部和表面主拉应力历时曲线和抗拉强度增长曲线关系的最小值作为输入,闸墩表面保温效果、浇筑温度、通水水温、通水时间作为输出,建立了温控措施优选的神经网络模型,采用均匀设计原理进行温控参数组合,并采用水管冷却有限元法仿真分析含冷却水管的闸墩混凝土结构温度场和徐变应力场,获得样本进行学习,以此训练好的网络描述结构主拉应力历时曲线和抗拉强度增长曲线关系的最小值与不同温控措施的非线性关系。将合适的结构主拉应力历时曲线和抗拉强度增长曲线关系的最小值输入训练好的网络,可自动优选出温控防裂措施。算例分析表明,本文建立的温控措施优选神经网络模型是可行的。
To the sluice pier concrete,temperature control and crack prevention is a complex and multi-factor problem of system optimization related to temperature control measures and material parameters. This paper tries optimal temperature control measures with the known con-crete material thermodynamics parameters,takes minimum values of the relationships between the sluice pier concrete structure’s internal/surface principal tensile stress duration curve and tensile strength growth curve as inputs and the sluice pier superficial heat preservation effect, pouring temperature,pipe cooling temperature and duration time as outputs,establishes the neural network model of the optimal temperature control measures,takes the uniform design principle to have the temperature control parameter combination,adopts the pipe cooling finite element method(FEM)to simulate and analyze the temperature field and creep stress field of the sluice pier concrete structure with cooling pipe,and gets samples to train

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通过轨温变化现场测试研究重载铁路高密度行车条件下直线和曲线地段轨温变化规律。试验结果表明:重载列车经过时,钢轨的温度由于受到列车风作用先降低,经过一定时间后升高;钢轨温度增加幅度自轨头、轨腰至轨底依次减小;大气温度不同列车通过时轨温变化也有所差异;列车通过直线段和曲线段的轨温变化趋势基本相同,但是曲线段钢轨的温度要比直线段钢轨温度高2℃左右。
The paper carries out in-situ measurements on the rail temperature of both straight and curve sections on highly-intense heavy haul lines and endeavours to conclude the changing patterns. The results indicate that as the train passes by,the rail temperature goes down first due to the wind included and then climbs up afterwards,during which the changing range tends to go down as the measurements moves from the rail head to the rail base. At the same time,environmental temperature is also found to be an influential factor. Also,it should be noted that although the changing patterns for straight and curve sections are found roughly consistent,the temperature measured at the latter is approximately 2℃ higher than that of the former.

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温升是影响电动机适用寿命的关键因素和衡量电机性能的重要指标,本文简述了电机温升的产生的原因和原理以及温升与绝缘等级的关系,分析了电机温升函数和曲线,并简述了降低温升的主要办法和现存的部分经验。
Temperature rise as an important index for motor performance well heavily influences motor''s life. The cause, principle, function and curve of motor temperature rising was shown in this essay. Some solution and experience is proposed in the final.

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