会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 91. 发明授权
    • Permanent optical sensor downhole fluid analysis systems
    • 永磁光学传感器井下流体分析系统
    • US06437326B1
    • 2002-08-20
    • US09604440
    • 2000-06-27
    • Tsutomu YamateOliver C. Mullins
    • Tsutomu YamateOliver C. Mullins
    • G01V504
    • E21B49/081B08B7/028E21B47/102E21B49/08G01N2021/154
    • Systems for measuring the gas-oil ratio of fluid being produced in a wellbore are provided and generally include an uphole light source which produces a high amplitude near infrared signal at selected wavelengths, an uphole spectrometer, a processor coupled to the spectrometer for making GOR determinations, a plurality of optical cells in contact with wellbore fluid and located along various locations of the wellbore, and a fiber optic system which couples the uphole light source to the “input side” of each of the optical cells, and which couples the “output side” of each of the optical cells to the spectrometer. The light source preferably produces high amplitude NIR light at or around 1.72 microns (an oil peak), 1.67 microns (a methane peak), 1.6 microns (a baseline), and 1.58 microns (a carbon dioxide peak). Various sources are disclosed including tunable sources, diode arrays, and broad band sources. Various embodiments of the fiber optic system are provided including a dual path system, a shared path system, a main fiber line system, and a complimentary (redundant) system. Multicell configurations are provided for each fiber optic system embodiment. In addition, various embodiments of the optical cell are provided including a sampler cell which includes a floating piston which pulls in and pushes out sample fluid, and different probe cells.
    • 提供了用于测量在井眼中产生的流体的瓦斯 - 油比的系统,并且通常包括产生选定波长的高幅度近红外信号的井上光源,井眼光谱仪,耦合到光谱仪的处理器,用于进行GOR测定 ,与井眼流体接触并沿着井筒的各个位置定位的多个光学单元,以及将该井上光源耦合到每个光学单元的“输入侧”的光纤系统,并将“输出 每个光学单元的一侧“到光谱仪。 光源优选产生1.72微米(油峰)或1.72微米(甲烷峰值),1.6微米(基线)和1.58微米(二氧化碳峰)处或其附近的高振幅NIR光。 公开了各种来源,包括可调谐源,二极管阵列和宽带源。 提供了光纤系统的各种实施例,其包括双路径系统,共享路径系统,主光纤线路系统和互补(冗余)系统。 为每个光纤系统实施例提供多介质配置。 此外,提供光学单元的各种实施例,其包括采样器单元,其包括拉入和推出样品流体的浮动活塞以及不同的探针单元。
    • 100. 发明授权
    • Assessing downhole WBM-contaminated connate water
    • 评估井下WBM污染的合生水
    • US07028773B2
    • 2006-04-18
    • US10318800
    • 2002-12-13
    • Go FujisawaOliver C. MullinsChengli DongAndrew Kurkjian
    • Go FujisawaOliver C. MullinsChengli DongAndrew Kurkjian
    • E21B43/00G01V8/00
    • G01N21/645E21B47/1015E21B49/005E21B49/08E21B2049/085G01N33/241G01N33/2882
    • Water-based mud filtrate concentration in a downhole fluid sample drawn from the borehole of an oil well is assessed. To measure water-based mud filtrate concentration, a water-based mud having a water-soluble fluorescent dye tracer is pumped into the borehole; sample fluid from a selected downhole location is pumped through a downhole flow line having a window; sample fluid flowing in an excitation region of the downhole flow line is illuminated through the window with fluorescence excitation light; and fluorescence emission from the excitation region is measured to produce a measured value. The measured value represents the fraction of water-based mud filtrate in the sample fluid. A calibration value is determined representing 100% water-based mud filtrate. A method for validating a sample of connate water as having an acceptably low WBM filtrate contamination tests for validation downhole, in real time. Each measured value of the series of measured values is compared with a predetermined fraction of a calibration value. Samples that are validated may be captured and brought to the surface for analysis. A method using the time series data and a predetermined fraction of the calibration value calculates a predicted flushing time to completion.
    • 评估从油井钻孔抽取的井下流体样品中的水基泥浆滤液浓度。 为了测量水泥泥滤液浓度,将具有水溶性荧光染料示踪剂的水性泥浆泵入井眼; 来自所选择的井下位置的样品流体被泵送通过具有窗口的井下流动管线; 在井下流动线的激发区域流动的样品流体通过窗口用荧光激发光照射; 并且测量来自激发区域的荧光发射以产生测量值。 测量值表示样品液中水基泥浆滤液的分数。 确定代表100%水基泥浆滤液的校准值。 一种用于验证原生水样品具有可接受的低WBM滤液污染测试的方法,用于实时验证井下。 将一系列测量值的每个测量值与校准值的预定分数进行比较。 经过验证的样品可能被捕获并带到表面进行分析。 使用时间序列数据和校准值的预定分数的方法计算完成的预测冲洗时间。