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公开(公告)号：US10370911B2
公开(公告)日：2019-08-06
申请号：US15373036
申请日：2016-12-08
摘要： Methods of drilling earth formations may involve removing a portion of an underlying earth formation utilizing cutting elements of an earth-boring drill bit. A rotational speed of the drill string may be sensed utilizing a first sensor. A rate of penetration of the drill string during advancement of the earth-boring drill bit may be sensed utilizing a second sensor. An instantaneous average depth of cut of cutting elements of the earth-boring drill bit may be determined utilizing a control unit to calculate the instantaneous average depth of cut based on a sensed rotational speed of the drill string and a sensed speed of advancement of the drill string. The weight on the earth-boring drill bit may be increased utilizing the drawworks when the instantaneous average depth of cut is less than the predetermined minimum depth of cut.
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公开(公告)号：US20190120044A1
公开(公告)日：2019-04-25
申请号：US16091929
申请日：2017-04-06
摘要： A method of detecting an event within a wellbore includes obtaining a sample data set, determining a plurality of frequency domain features of the sample data set, comparing the plurality of frequency domain features with an event signature, determining that the plurality of frequency domain features matches the thresholds, ranges, or both of the event signature, and determining the presence of the event within the wellbore based on determining that the plurality of frequency domain features match the thresholds, ranges, or both of the event signature. The sample data set is a sample of an acoustic signal originating within a wellbore including a fluid. The sample data set is representative of the acoustic signal across a frequency spectrum. The event signature includes a plurality of thresholds, ranges, or both corresponding to the plurality of frequency domain features.
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公开(公告)号：US10041339B2
公开(公告)日：2018-08-07
申请号：US14377073
申请日：2013-02-08
摘要： Method of recovering oil from a subterranean oil-bearing reservoir by using an injection fluid containing a viscosifying polymer in a low salinity water. The low salinity water has a total dissolved solids (TDS) content of 15,000 ppmv or less, and the ratio of the multivalent cation content of the low salinity water to the multivalent cation content of the connate water of the reservoir is less than 1. The viscosity of the injection fluid is in the range of 3 to 200 cP, and the reservoir is penetrated by one or more injection wells and by one or more production wells. The method includes injecting the injection fluid into at least one of the injection wells in a slug size in the range of 0.4 to 1.5 pore volume (PV).
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公开(公告)号：US09982521B2
公开(公告)日：2018-05-29
申请号：US15188083
申请日：2016-06-21
CPC分类号： E21B43/20 , G01N15/08 , G01N2013/003
摘要： A computer-implemented method for configuring operating conditions for at least one of desalination equipment and fluid injection equipment to be used in a low salinity waterflood on a hydrocarbon-bearing reservoir is provided. The reservoir is penetrable by an injection well and a production well. The method comprises deriving an ion diffusion distance value from: a diffusion coefficient indicative of a rate of diffusion of ions through relatively permeable layers of the reservoir when the low salinity water is present therein; and a residence time value indicative of the time required for the low salinity water to pass from the injection well to the production well through the reservoir; comparing the thickness of the relatively permeable layers to the derived ion diffusion distance value; generating an indication of the effectiveness of performing a low salinity waterflood; and configuring said operating conditions based on the indication of the effectiveness.
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公开(公告)号：US09297214B2
公开(公告)日：2016-03-29
申请号：US14591545
申请日：2015-01-07
发明人： Roy Shilling , Paul W. Gulgowski, Jr. , Philip D. Maule , Kevin Kennelley , Walter Greene , Robert W. Franklin , Vicki Corso , Tony Oldfield , Adam L. Ballard , Graeme Steele , David E. Wilkinson , Ricky Thethi , Chau Nguyen , Steve Hatton
CPC分类号： E21B17/01 , E21B17/015 , E21B36/003 , E21B36/005 , E21B43/0107 , E21B43/013 , F04B17/02 , F04B17/05
摘要： A free-standing riser system connects a subsea source to a surface structure. The system includes a concentric free-standing riser comprising inner and outer risers defining an annulus there between. A lower end of the riser is fluidly coupled to the subsea source through a lower riser assembly (LRA) and one or more subsea flexible conduits. An upper end of the riser is connected to a buoyancy assembly and the surface structure through an upper riser assembly (URA) and one or more upper flexible conduits, the riser also mechanically connected to a buoyancy assembly that applies upward tension to the riser. The riser may be insulated for flow assurance, either by a flow assurance fluid in the annulus, insulation of the outside of the outer riser, or both. The system may include a hydrate inhibition system and/or a subsea dispersant system. The surface structure may be dynamically positioned.
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16.发明授权Systems and methods for determining enhanced equivalent circulating density and interval solids concentration in a well system using multiple sensors 有权使用多个传感器确定井系统中增强的等效循环密度和间隔固体浓度的系统和方法公开(公告)号：US09291015B2
公开(公告)日：2016-03-22
申请号：US13804864
申请日：2013-03-14
摘要： Multiple sensors on a drill string can be utilized to perform equivalent circulation density (ECD) analysis. By utilizing multiple ones of the sensors, the pressure drop in each section of the wellbore can be classified. Additionally, the inclusion of multiple sensors in the drill string allows a wellbore to be sectioned into intervals bounded by any two sensors. Pressure events occurring in a single section of the wellbore bounded by any two sensors can be isolated and analyzed. The isolation can be achieved by subtracting the pressure measured on the shallower sensor from that measured on the deeper sensor.
摘要翻译： 钻柱上的多个传感器可用于执行等效循环密度（ECD）分析。 通过利用多个传感器，能够对井眼的每个部分的压降进行分类。 此外，在钻柱中包括多个传感器允许将井眼分成由任何两个传感器限定的间隔。 可以隔离和分析由任何两个传感器限定的井筒的单个部分中发生的压力事件。 可以通过从较深的传感器上测量的较小的传感器上减去测量的压力来实现隔离。
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公开(公告)号：US09145762B2
公开(公告)日：2015-09-29
申请号：US13392131
申请日：2010-08-20
申请人： Dana Aytkhozhina , Roman Vladimirovich Bulgachev , Martin Alexander Ross , Allan Jeffrey Twynam
发明人： Dana Aytkhozhina , Roman Vladimirovich Bulgachev , Martin Alexander Ross , Allan Jeffrey Twynam
摘要： Gravel pack composition containing gravel and a water-in-oil emulsion including (a) an organic continuous phase comprising 0.1 to 5 vol % of the emulsion of non-ionic or cationic surfactant and 0.25 to 3 vol % of the emulsion of sorbitan ester; (b) a dispersed aqueous phase comprising 0.05 to 3 vol % of the emulsion of a partial ester of a polyol with at least one C6 to C22 fatty acid and at least one of an acid, acid precursor, and a chelating agent; and (c) a density control agent. The fluid can display a delayed break of up to about 72 hours to enable clean-up of mud cake.
摘要翻译： 包含砾石和油包水乳液的砾石组合物组合物包括（a）包含0.1至5体积％的非离子或阳离子表面活性剂乳液和0.25至3体积％的脱水山梨糖醇酯乳液的有机连续相; （b）分散的水相，其包含0.05至3体积％的多元醇与至少一种C 6至C 22脂肪酸的部分酯和至少一种酸，酸前体和螯合剂的乳液; 和（c）密度控制剂。 流体可以显示高达约72小时的延迟断裂，以清除泥饼。
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18.发明申请SYSTEMS AND METHODS FOR DETERMINING ENHANCED EQUIVALENT CIRCULATING DENSITY AND INTERVAL SOLIDS CONCENTRATION IN A WELL SYSTEM USING MULTIPLE SENSORS 有权用于确定使用多个传感器的良好系统中增强的等效循环密度和间隔固体浓度的系统和方法公开(公告)号：US20140131101A1
公开(公告)日：2014-05-15
申请号：US13804864
申请日：2013-03-14
IPC分类号： E21B47/06
摘要： Multiple sensors on a drill string can be utilized to perform equivalent circulation density (ECD) analysis. By utilizing multiple ones of the sensors, the pressure drop in each section of the wellbore can be classified. Additionally, the inclusion of multiple sensors in the drill string allows a wellbore to be sectioned into intervals bounded by any two sensors. Pressure events occurring in a single section of the wellbore bounded by any two sensors can be isolated and analyzed. The isolation can be achieved by subtracting the pressure measured on the shallower sensor from that measured on the deeper sensor.
摘要翻译： 钻柱上的多个传感器可用于执行等效循环密度（ECD）分析。 通过利用多个传感器，能够对井眼的每个部分的压降进行分类。 此外，在钻柱中包括多个传感器允许将井眼分成由任何两个传感器限定的间隔。 可以隔离和分析由任何两个传感器限定的井筒的单个部分中发生的压力事件。 可以通过从较深的传感器上测量的较小的传感器上减去测量的压力来实现隔离。
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19.发明申请Determining Fluid Rate And Phase Information For A Hydrocarbon Well Using Predictive Models 有权使用预测模型确定烃井的流体速率和相位信息公开(公告)号：US20130166216A1
公开(公告)日：2013-06-27
申请号：US13772655
申请日：2013-02-21
摘要： A method of determining rate and phase of fluid produced from or injected into a hydrocarbon well includes obtaining first temperature and pressure measurements from sensors at the well. The first temperature and pressure measurements are applied to a plurality of predictive well models to calculate an estimated value of fluid rate and phase composition from each of the predictive well models responsive to the temperature and pressure measurements. A first fluid rate and phase composition result is derived from the estimate value of fluid rate and phase composition from each of the predictive well models.
摘要翻译： 确定由烃井产生或注入到烃井中的流体的速率和相位的方法包括从井中的传感器获得第一温度和压力测量值。 将第一温度和压力测量值应用于多个预测井模型，以根据温度和压力测量值计算每个预测井模型的流体速率和相位组成的估计值。 第一流体速率和相组成结果来自每个预测井模型的流体速率和相位组成的估计值。
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公开(公告)号：US20120085544A1
公开(公告)日：2012-04-12
申请号：US13156224
申请日：2011-06-08
申请人： Roy Shilling , Paul W. Gulgowski, JR. , Philip D. Maule , Kevin Kennelley , Walter Greene , Robert W. Franklin , Vicki Corso , Tony Oldfield , Adam L. Ballard , Graeme Steele , David Wilkinson , Ricky Thethi , Chau Nguyen , Steve Hatton
发明人： Roy Shilling , Paul W. Gulgowski, JR. , Philip D. Maule , Kevin Kennelley , Walter Greene , Robert W. Franklin , Vicki Corso , Tony Oldfield , Adam L. Ballard , Graeme Steele , David Wilkinson , Ricky Thethi , Chau Nguyen , Steve Hatton
CPC分类号： E21B17/01 , E21B17/015 , E21B36/003 , E21B36/005 , E21B43/0107 , E21B43/013 , F04B17/02 , F04B17/05
摘要： A free-standing riser system connects a subsea source to a surface structure. The system includes a concentric free-standing riser comprising inner and outer risers defining an annulus there between. A lower end of the riser is fluidly coupled to the subsea source through a lower riser assembly (LRA) and one or more subsea flexible conduits. An upper end of the riser is connected to a buoyancy assembly and the surface structure through an upper riser assembly (URA) and one or more upper flexible conduits, the riser also mechanically connected to a buoyancy assembly that applies upward tension to the riser. The riser may be insulated for flow assurance, either by a flow assurance fluid in the annulus, insulation of the outside of the outer riser, or both. The system may include a hydrate inhibition system and/or a subsea dispersant system. The surface structure may be dynamically positioned.
摘要翻译： 独立的立管系统将海底源与表面结构相连。 该系统包括同心独立的提升器，其包括在其间限定环形空间的内部和外部立管。 提升管的下端通过下提升管组件（LRA）和一个或多个海底柔性管道流体地联接到海底源。 提升管的上端通过上部提升管组件（URA）和一个或多个上部柔性管道连接到浮力组件和表面结构，提升管也机械地连接到向提升管施加向上张力的浮力组件。 提升管可以通过环路中的流动保证流体，外部提升管的外部绝缘或两者隔离来保证流量保证。 该系统可以包括水合物抑制系统和/或海底分散系统。 表面结构可以是动态定位的。
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