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    Determining phase transition pressure of downhole retrograde condensate
    1.
    发明授权
    Determining phase transition pressure of downhole retrograde condensate 有权
    确定井下逆行冷凝水的相变压力

    公开(公告)号：US07075063B2

    公开(公告)日：2006-07-11

    申请号：US10670615

    申请日：2003-09-25

    申请人： Chengli Dong ,  Soraya S. Betancourt ,  Go Fujisawa ,  Oliver C. Mullins ,  James J. Dunlap

    发明人： Chengli Dong ,  Soraya S. Betancourt ,  Go Fujisawa ,  Oliver C. Mullins ,  James J. Dunlap

    IPC分类号： G01V8/00

    CPC分类号： G01V8/02

    摘要： The invention provides a method for determining phase transition pressure of downhole retrograde condensate. An OBM-contamination value is produced from a time-series of fluorescence values produced by measuring fluorescence emitted from a single-phase flow of OBM-contaminated formation fluid in a downhole cell during a cycle of time. The pressure of fluid in the cell is set at a transition boundary by incrementing drawdown pressure and monitoring the presence or absence of a phase transition. An apparent phase transition pressure value associated with the cycle of time is produced by setting apparent phase transition pressure value equal to cell pressure. This process is repeated for several cycles of time to produce a number of pairs of OBM-contamination value and apparent phase transition pressure value as OBM-contamination decreases over time. The value of phase transition pressure is determined by extrapolating from a representation of apparent phase transition pressure values versus OBM-contamination values.

    摘要翻译： 本发明提供一种确定井下逆行冷凝物相变压力的方法。 OBM污染值是通过在一段时间内通过测量从井下孔中的OBM污染的地层流体的单相流发射的荧光产生的荧光值的时间序列产生的。 通过增加压降压力并监测相变的存在或不存在，将电池中的流体压力设定在过渡边界。 通过将表观相变压力值设置为等于电池压力来产生与时间周期相关的表观相变压力值。 该过程重复几个周期，以产生多个OBM污染值和表观相变压力值对，因为OBM污染随时间而减少。 通过从表观相变压力值与OBM污染值的表示进行外推来确定相变压力的值。

    Methods and apparatus to form a well
    7.
    发明授权
    Methods and apparatus to form a well 有权
    形成井的方法和装置

    公开(公告)号：US08061444B2

    公开(公告)日：2011-11-22

    申请号：US12125181

    申请日：2008-05-22

    申请人： Oliver C. Mullins ,  Julian J. Pop ,  Francois X. Dubost ,  Soraya S. Betancourt

    发明人： Oliver C. Mullins ,  Julian J. Pop ,  Francois X. Dubost ,  Soraya S. Betancourt

    IPC分类号： E21B7/04 ,  E21B47/00 ,  E21B47/02

    CPC分类号： E21B7/04 ,  E21B47/022

    摘要： Methods and apparatus to form a well are disclosed. An example method involves determining a reservoir fluid map associated with at least a portion of a reservoir. The first fluid map has first fluid composition data associated therewith. The example method also involves measuring a formation fluid and determining a second fluid composition data based on the measurement. The second fluid composition data is compared with the first fluid composition data associated with the reservoir fluid map, and a well trajectory is adjusted based on the comparison.

    摘要翻译： 公开了形成井的方法和装置。 示例性方法包括确定与储存器的至少一部分相关联的储存器流体图。 第一流体图具有与其相关联的第一流体组成数据。 该示例性方法还涉及测量地层流体并且基于测量确定第二流体组成数据。 将第二流体组成数据与与储层流体图相关联的第一流体组成数据进行比较，并且基于该比较来调整井轨迹。

    METHODS FOR OPTIMIZING PETROLEUM RESERVOIR ANALYSIS
    8.
    发明申请
    METHODS FOR OPTIMIZING PETROLEUM RESERVOIR ANALYSIS 审中-公开
    优化石油储层分析方法

    公开(公告)号：US20100132450A1

    公开(公告)日：2010-06-03

    申请号：US12623952

    申请日：2009-11-23

    申请人： Andrew E. Pomerantz ,  Soraya S. Betancourt ,  Shawn D. Taylor ,  Katherine A. Rojas ,  Oliver C. Mullins

    发明人： Andrew E. Pomerantz ,  Soraya S. Betancourt ,  Shawn D. Taylor ,  Katherine A. Rojas ,  Oliver C. Mullins

    IPC分类号： E21B49/08 ,  G06F7/48 ,  G01J5/02

    CPC分类号： E21B49/00 ,  G01N33/2823

    摘要： Methods for optimizing petroleum reservoir analysis and sampling using a real-time component wherein heterogeneities in fluid properties exist. The methods help predict the recovery performance of oil such as, for example, heavy oil, which can be adversely impacted by fluid property gradients present in the reservoir. Additionally, the methods help optimize sampling schedules of the reservoir, which can reduce overall expense and increase sampling efficiency. The methods involve the use of analytical techniques for accurately predicting one or more fluid properties that are not in equilibrium in the reservoir. By evaluating the composition of downhole fluid samples taken from the reservoir using sensitive analytical techniques, an accurate base model of the fluid property of interest can be produced. With the base model in hand, real-time data can be obtained and compared to the base model in order to further define the fluid property of interest in the reservoir.

    摘要翻译： 使用实时组分优化石油储层分析和采样的方法，其中存在流体性质的异质性。 这些方法有助于预测油的回收性能，例如重油，其可能受到存在于储层中的流体性质梯度的不利影响。 此外，这些方法有助于优化储层的采样计划，从而降低总体费用并提高采样效率。 这些方法涉及使用分析技术来精确地预测储层中不平衡的一种或多种流体性质。 通过使用敏感的分析技术评估从储层采集的井下液体样品的组成，可以产生目标流体性质的精确基础模型。 使用基本模型，可以获得实时数据并与基本模型进行比较，以进一步定义储层中感兴趣的流体属性。