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1.发明授权Methods and apparatus for estimating physical parameters of reservoirs using pressure transient fracture injection/falloff test analysis 有权使用压力瞬变断裂注入/衰减试验分析估算储层物理参数的方法和装置公开(公告)号：US07054751B2
公开(公告)日：2006-05-30
申请号：US10812210
申请日：2004-03-29
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B49/008
Abstract: A before-closure pressure-transient leakoff analysis for a fracture-injection/falloff test is used to mitigate the detrimental effects of pressure-dependent fluid properties on the evaluation of physical parameters of a reservoir. A fracture-injection/falloff test consists of an injection of liquid, gas, or a combination (foam, emulsion, etc.) containing desirable additives for compatibility with the formation at an injection pressure exceeding the formation fracture pressure followed by a shut-in period. The pressure falloff during the shut-in period is measured and analyzed to determine permeability and fracture-face resistance by preparing a specialized Cartesian graph from the shut-in data using adjusted pseudodata such as adjusted pseudopressure data and time as variables in a first method, and adjusted pseudopressure and adjusted pseudotime data as variables in a second method.
Abstract translation: 用于断裂注射/衰减试验的封闭前压力 - 瞬时泄漏分析用于减轻压力依赖流体性质对储层物理参数评估的有害影响。 断裂注射/衰减试验包括注射液体，气体或组合（泡沫，乳液等），其含有所需的添加剂，以在超过地层断裂压力的注射压力下与形成相容，随后进行闭合 期。 在关闭期间的压力衰减被测量和分析，以通过使用调整的假数据（例如调整的伪压缩数据和时间作为变量在第一种方法中）从关闭数据中准备专门的笛卡尔图来确定渗透率和断裂面阻力， 并将第二种方法中的伪压缩和调整后的假动作数据作为变量进行调整。
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公开(公告)号：US09284829B2
公开(公告)日：2016-03-15
申请号：US13611330
申请日：2012-09-12
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B43/26 , E21B43/16 , G01V1/288 , G01V2210/646 , G01V2210/663
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating subterranean fracture propagation. A subterranean formation model representing rock blocks of a subterranean formation is received. The subterranean formation model is used to predict a response of each rock block to one or more forces acting on the rock block during an injection treatment for the subterranean formation. The predicted responses of the rock blocks may include, for example, a fracture, a rotation, a displacement, a dilation of an existing fracture, and/or another type of response. In some implementations, an injection treatment may be designed for a subterranean formation based on the predicted response of the rock blocks.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与模拟地下裂缝扩展相关的操作。 接收表示地下岩层的地下地层模型。 地下地层模型用于预测每个岩块对于在地下地层的喷射处理期间作用在岩块上的一个或多个力的响应。 岩石块的预测响应可以包括例如断裂，旋转，位移，现有骨折的扩张和/或其他类型的应答。 在一些实施方案中，可以基于岩块的预测响应来为地下地层设计注射处理。
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公开(公告)号：US08794316B2
公开(公告)日：2014-08-05
申请号：US12061294
申请日：2008-04-02
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B43/26 , E21B49/008
Abstract: Quantitative refracture diagnostic and fracture-injection/falloff models may be used in methods for oil and gas subsurface formation evaluation techniques. More particularly, such methods may be used to select candidate wells and well candidate layers for stimulation treatments in a subterranean formation. An example of a method for selecting well candidate layers for stimulation treatments in a subterranean formation may comprise the steps of: selecting a candidate well; selecting a reservoir layer to be tested; performing a quantitative refracture-candidate diagnostic test on the reservoir layer; determining at least one reservoir property of the reservoir layer using the quantitative refracture-candidate diagnostic test; and modeling a proposed stimulation treatment using the at least one reservoir property in a reservoir simulation model so as to predict the efficacy of the proposed stimulation treatment.
Abstract translation: 定量折射诊断和断裂注射/衰减模型可用于石油和天然气地下地层评估技术的方法。 更具体地，这样的方法可用于选择候选孔和井候选层用于地下地层中的刺激处理。 用于选择井下刺激处理的候选候选层的方法的实例可以包括以下步骤：选择候选井; 选择要测试的储层; 对储层进行定量折射候选诊断试验; 使用定量折射候选诊断测试确定储层的至少一个储层特性; 以及在储层模拟模型中使用所述至少一个储层特性建模所提出的刺激处理，以便预测所提出的刺激治疗的功效。
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公开(公告)号：US08392165B2
公开(公告)日：2013-03-05
申请号：US12625914
申请日：2009-11-25
Applicant: David P. Craig , Michael J. Eberhard
Inventor： David P. Craig , Michael J. Eberhard
IPC: G06G7/48
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to generating a model of a subterranean formation based on a probabilistic earth model. An earth model including a probability distribution for a property of a subterranean region is received. A subterranean formation model is generated based on sampling the probability distribution for the property. The subterranean formation model includes information on boundaries of rock blocks of a formation in the subterranean region. The subterranean formation model may be used for simulating an injection treatment applied to the formation, for example, to predict fracture propagation in the formation. In some implementations, the subterranean formation model may be used for designing an injection treatment for the formation.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与基于概率地球模型生成地下地层模型相关的操作。 接收包括地下区域属性的概率分布的地球模型。 基于对属性的概率分布进行抽样，生成地下地层模型。 地下地层模型包括关于地下岩层的岩块边界的信息。 地下地层模型可以用于模拟施加到地层的注入处理，例如，以预测地层中的裂缝扩展。 在一些实施方案中，地下地层模型可用于设计用于地层的注入处理。
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公开(公告)号：US20110125471A1
公开(公告)日：2011-05-26
申请号：US12625914
申请日：2009-11-25
Applicant: David P. Craig , Michael J. Eberhard
Inventor： David P. Craig , Michael J. Eberhard
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to generating a model of a subterranean formation based on a probabilistic earth model. An earth model including a probability distribution for a property of a subterranean region is received. A subterranean formation model is generated based on sampling the probability distribution for the property. The subterranean formation model includes information on boundaries of rock blocks of a formation in the subterranean region. The subterranean formation model may be used for simulating an injection treatment applied to the formation, for example, to predict fracture propagation in the formation. In some implementations, the subterranean formation model may be used for designing an injection treatment for the formation.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与基于概率地球模型生成地下地层模型相关的操作。 接收包括地下区域属性的概率分布的地球模型。 基于对属性的概率分布进行抽样，生成地下地层模型。 地下地层模型包括关于地下岩层的岩块边界的信息。 地下地层模型可以用于模拟施加到地层的注入处理，例如，以预测地层中的裂缝扩展。 在一些实施方案中，地下地层模型可用于设计用于地层的注入处理。
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Patent Agency Ranking
公开(公告)号：US20110120702A1
公开(公告)日：2011-05-26
申请号：US12837854
申请日：2010-07-16
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B43/26
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to generating probabilistic information on characteristics of natural fractures of a subterranean formation. Fitted fracture models are generated based on microseismic event data for a subterranean region. The fitted fracture models represent estimated locations of fractures in the subterranean region. A distribution of fracture parameter values is generated based on the fitted fracture models. The distribution includes fracture parameter values and a probability associated with each fracture parameter value. Generating the fitted fracture models may include, for example, fitting a plane, a line or another type of equation to the measured locations of microseismic events. In some implementations, an injection treatment may be simulated and/or designed based on the probability distribution.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与生成关于地下地层天然裂缝的特征的概率信息相关的操作。 基于地下区域的微震事件数据生成拟合断裂模型。 拟合的断裂模型代表了地下区域断裂的估计位置。 基于拟合断裂模型生成断裂参数值的分布。 分布包括裂缝参数值和与每个断裂参数值相关的概率。 产生拟合的断裂模型可以包括例如将平面，线或另一类型的方程拟合到测量的微震事件的位置。 在一些实施方案中，可以基于概率分布来模拟和/或设计注射治疗。
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公开(公告)号：US4719266A
公开(公告)日：1988-01-12
申请号：US888913
申请日：1986-07-22
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: C08J5/10 , C08K3/0091 , C08K5/098 , C08J2321/00 , Y10T428/31692 , Y10T428/31696 , Y10T428/31707
Abstract: The use of metal salts in vulcanizable elastomer compounds is described. In sufficient amounts, the metal salts function as both vulcanization accelerators and adhesion promoters for rubber to metal adhesion, thus eliminating the need for a separate ingredient for each purpose. Certain of the salts also promote the adhesion of the elastomer to metal adherends which have heretofore been unknown, for example, to a zinc surface. Curing characteristics of elastomer formulations using the metal salts are comparable to those using prior art accelerators.
Abstract translation: 描述了在可硫化的弹性体化合物中使用金属盐。 足够量的金属盐既可用作硫化促进剂，也可用作橡胶与金属粘合剂的粘合促进剂，因此不需要为每种用途单独使用。 某些盐还促进了弹性体对迄今为止未知的例如锌表面的金属被粘物的粘附。 使用金属盐的弹性体制剂的固化特性与使用现有技术促进剂的那些相当。
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公开(公告)号：US08437962B2
公开(公告)日：2013-05-07
申请号：US12837854
申请日：2010-07-16
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B43/26
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to generating probabilistic information on characteristics of natural fractures of a subterranean formation. Fitted fracture models are generated based on microseismic event data for a subterranean region. The fitted fracture models represent estimated locations of fractures in the subterranean region. A distribution of fracture parameter values is generated based on the fitted fracture models. The distribution includes fracture parameter values and a probability associated with each fracture parameter value. Generating the fitted fracture models may include, for example, fitting a plane, a line or another type of equation to the measured locations of microseismic events. In some implementations, an injection treatment may be simulated and/or designed based on the probability distribution.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与生成关于地下地层天然裂缝的特征的概率信息相关的操作。 基于地下区域的微震事件数据生成拟合断裂模型。 拟合的断裂模型代表了地下区域断裂的估计位置。 基于拟合断裂模型生成断裂参数值的分布。 分布包括裂缝参数值和与每个断裂参数值相关的概率。 产生拟合的断裂模型可以包括例如将平面，线或另一类型的方程拟合到测量的微震事件的位置。 在一些实施方案中，可以基于概率分布来模拟和/或设计注射治疗。
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公开(公告)号：US20110120718A1
公开(公告)日：2011-05-26
申请号：US12626153
申请日：2009-11-25
Applicant: David P. Craig
Inventor： David P. Craig
CPC classification number: E21B43/26 , E21B43/16 , G01V1/288 , G01V2210/646 , G01V2210/663
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to simulating subterranean fracture propagation. A subterranean formation model representing rock blocks of a subterranean formation is received. The subterranean formation model is used to predict a response of each rock block to one or more forces acting on the rock block during an injection treatment for the subterranean formation. The predicted responses of the rock blocks may include, for example, a fracture, a rotation, a displacement, a dilation of an existing fracture, and/or another type of response. In some implementations, an injection treatment may be designed for a subterranean formation based on the predicted response of the rock blocks.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与模拟地下裂缝扩展相关的操作。 接收表示地下岩层的地下地层模型。 地下地层模型用于预测每个岩块对于在地下地层的喷射处理期间作用在岩块上的一个或多个力的响应。 岩石块的预测响应可以包括例如断裂，旋转，位移，现有骨折的扩张和/或其他类型的应答。 在一些实施方案中，可以基于岩块的预测响应来为地下地层设计注射处理。
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公开(公告)号：US20110120706A1
公开(公告)日：2011-05-26
申请号：US12626039
申请日：2009-11-25
Applicant: David P. Craig
Inventor： David P. Craig
Abstract: Systems, methods, and instructions encoded in a computer-readable medium can perform operations related to refining information on characteristics of natural fractures of a subterranean formation. Fracture pattern models are generated based on sampling an initial distribution of values for a fracture parameter. Each fracture pattern model may include, for example, a model of natural fractures in a subterranean formation. Each fracture pattern model is compared to microseismic event data for a subterranean region. A refined distribution for the fracture parameter is generated based on the comparison. Generating the refined distribution may include, for example, selecting values of the fracture parameter from fracture pattern models that correlate with the microseismic event data. In some implementations, an injection treatment may be simulated and/or designed based on the refined distribution.
Abstract translation: 在计算机可读介质中编码的系统，方法和指令可以执行与改进关于地下地层天然裂缝特征的信息相关的操作。 基于对裂缝参数的值的初始分布的采样产生断裂模式模型。 每个裂缝模式模型可以包括例如地层中天然裂缝的模型。 将每个裂缝模式模型与地下区域的微震事件数据进行比较。 基于比较生成裂缝参数的精细分布。 生成精细分布可以包括例如从与微震事件数据相关的断裂模式模型中选择断裂参数的值。 在一些实施方案中，可以基于精细分布来模拟和/或设计注射治疗。
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