公开(公告)号：US20080201079A1

公开(公告)日：2008-08-21

申请号：US11709514

申请日：2007-02-21

Applicant: David A. Castillo ,  Pavel Peska ,  Daniel Moos

Inventor： David A. Castillo ,  Pavel Peska ,  Daniel Moos

IPC: G06F19/00

CPC classification number: E21B49/006 ,  G01V1/50

Abstract: A method and system for characterization of fault conditions within a subterranean volume. In one embodiment, the system comprises means for generating a mathematical model of stress conditions within the volume, from which breakout conditions along a borehole trajectory can be predicted. The system further comprises means for sensing actual breakout conditions along a borehole extending through the volume. Predictive breakout data is compared with the actual sensed breakout conditions to assess the degree of correlation between the predictive data and the actual data, and thus the accuracy of the stress model. Means are provided for enabling a user to cause the mathematical model to be revised to reflect the presence of at least one active fault plane in the volume, where the presumed fault plane is not intersected by the borehole. The revised model is used to generate new predictive breakout data. The process of revising the stress model and assessing the correlation between predictive breakout conditions derived from the model and actual breakout conditions is repeatable in an iterative fashion to achieve an optimal correlation and hence an optimally accurate stress model reflecting fault conditions in the vicinity of but not necessarily penetrated by the borehole.

Abstract translation: 用于表征地下体积内的故障状况的方法和系统。 在一个实施例中，系统包括用于产生体积内的应力条件的数学模型的装置，从该轨迹可以预测沿钻孔轨迹的突破条件。 该系统还包括用于感测沿着穿过该体积的钻孔的实际断裂状况的装置。 将预测突破数据与实际检测到的突破条件进行比较，以评估预测数据与实际数据之间的相关程度，从而评估应力模型的准确性。 提供了用于使用户能够使数学模型被修改以反映体积中存在至少一个活动故障平面的装置，其中假设的故障平面不与钻孔相交。 修改后的模型用于生成新的预测突发数据。 修改应力模型和评估从模型导出的预测突破条件与实际突破条件之间的相关性的过程可以以迭代方式重复，以实现最佳相关性，从而实现反映在附近但不是 必须被钻孔穿透。

公开(公告)号：US07349807B2

公开(公告)日：2008-03-25

申请号：US11075300

申请日：2005-03-08

Applicant: Daniel Moos ,  Pavel Peska ,  Chris Ward

Inventor： Daniel Moos ,  Pavel Peska ,  Chris Ward

IPC: G01V1/28

CPC classification number: G01V1/30 ,  G01V1/50 ,  G01V2210/6248

Abstract: Pre-drill pore pressure and fracture gradient predictions obtained from seismic velocity data are used in well design taking into account uncertainties in the velocity estimation and in the models that use the velocities to determine pore pressure. Using geological constraints, limits are established on hydrocarbon column height. It is also possible to predict the relative number of casings required to reach target reservoirs.

Abstract translation: 考虑到速度估计的不确定性和使用速度确定孔隙压力的模型，在井设计中使用了从地震速度数据获得的预钻孔压力和断裂梯度预测。 利用地质条件，建立了烃柱高度的限制。 也可以预测达到目标油藏所需的壳体的相对数量。

公开(公告)号：US20080052003A1

公开(公告)日：2008-02-28

申请号：US11928748

申请日：2007-10-30

Applicant: Daniel Moos ,  Pavel Peska ,  Chris Ward

Inventor： Daniel Moos ,  Pavel Peska ,  Chris Ward

IPC: G01V9/00

CPC classification number: G01V1/30 ,  G01V1/50 ,  G01V2210/6248

Abstract: Pre-drill pore pressure and fracture gradient predictions obtained from seismic velocity data are used in well design taking into account uncertainties in the velocity estimation and in the models that use the velocities to determine pore pressure. Using geological constraints, limits are established on hydrocarbon column height. It is also possible to predict the relative number of casings required to reach target reservoirs. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract translation: 考虑到速度估计的不确定性和使用速度确定孔隙压力的模型，在井设计中使用了从地震速度数据获得的预钻孔压力和断裂梯度预测。 利用地质条件，建立了烃柱高度的限制。 也可以预测达到目标油藏所需的壳体的相对数量。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）。

公开(公告)号：US07313481B2

公开(公告)日：2007-12-25

申请号：US11440885

申请日：2006-05-25

Applicant: Daniel Moos ,  Youli Quan

Inventor： Daniel Moos ,  Youli Quan

IPC: G01N15/08 ,  E21B21/08

CPC classification number: G01N15/088 ,  E21B43/00 ,  E21B47/00 ,  E21B49/008 ,  G01N15/0826 ,  G01V1/005 ,  G01V1/44 ,  G01V1/52

Abstract: A method for simulating water-hammer waves in a borehole is used to estimate formation parameters such as porosity and permeability, and to design completion strings. The simulation method uses a model that has a plurality of layers, at least one of the layers includes radial layering. Determined formation properties from analysis of the waterhammer are used in development operations.

Abstract translation: 使用用于模拟井眼中的水锤波的方法来估计诸如孔隙率和渗透率的地层参数，并设计完井柱。 模拟方法使用具有多个层的模型，至少一个层包括径向分层。 在开发操作中使用来自水锤分析的确定的地层特性。

公开(公告)号：US20050197780A1

公开(公告)日：2005-09-08

申请号：US11075300

申请日：2005-03-08

Applicant: Daniel Moos ,  Pavel Peska ,  Chris Ward

Inventor： Daniel Moos ,  Pavel Peska ,  Chris Ward

IPC: G01V1/28 ,  G01V1/50

CPC classification number: G01V1/30 ,  G01V1/50 ,  G01V2210/6248

Abstract: Pre-drill pore pressure and fracture gradient predictions obtained from seismic velocity data are used in well design taking into account uncertainties in the velocity estimation and in the models that use the velocities to determine pore pressure. Using geological constraints, limits are established on hydrocarbon column height. It is also possible to predict the relative number of casings required to reach target reservoirs.

Abstract translation: 考虑到速度估计的不确定性和使用速度确定孔隙压力的模型，在井设计中使用了从地震速度数据获得的预钻孔压力和断裂梯度预测。 利用地质条件，建立了烃柱高度的限制。 也可以预测达到目标油藏所需的壳体的相对数量。