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公开(公告)号：US10047593B2
公开(公告)日：2018-08-14
申请号：US14719450
申请日：2015-05-22
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Xiangdong Qiu , Stephen Dyer
Abstract: In one possible implementation, fresh hydrochloric acid or (partially) spent hydrochloric acid can be pressurized by a pressure source. The pressurized acid from the acid source is injected into a wellbore during an acidizing operation. In addition, a carbon dioxide source may be provided. Acid from the acid source is combined with carbon dioxide from the carbon dioxide source, and the combined acid and carbon dioxide, pressurized by the pressure source, are injected into the wellbore during the acidizing operation. A processor located at the earth's surface or downhole may be provided. The processor can monitor the relative proportions of carbon dioxide and acid in the acid/carbon dioxide combination, as well as the pressure of the acid/carbon dioxide combination at an injection site in the wellbore. Acidizing operation management decisions can be made based on the monitored relative proportions and/or the monitored pressure.
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公开(公告)号：US20160341019A1
公开(公告)日：2016-11-24
申请号：US14719450
申请日：2015-05-22
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Xiangdong Qiu , Stephen Dyer
CPC classification number: G05D11/13 , C09K8/72 , E21B43/255
Abstract: An acid source and a pressure source are provided. The acid may be fresh hydrochloric acid or (partially) spent hydrochloric acid. Pressurized acid from the acid source, pressurized by the pressure source, is injected into a wellbore during an acidizing operation. In addition, a carbon dioxide source may be provided. Acid from the acid source is combined with carbon dioxide from the carbon dioxide source, and the combined acid and carbon dioxide, pressurized by the pressure source, are injected into the wellbore during the acidizing operation. A processor located at the earth's surface or downhole may be provided. The processor can monitor the relative proportions of carbon dioxide and acid in the acid/carbon dioxide combination, as well as the pressure of the acid/carbon dioxide combination at an injection site in the wellbore. Acidizing operation management decisions can be made based on the monitored relative proportions and/or the monitored pressure.
Abstract translation: 提供酸源和压力源。 酸可以是新鲜的盐酸或（部分）废盐酸。 在酸化操作期间，由压力源加压的来自酸源的加压酸被注入井眼。 另外，可以提供二氧化碳源。 来自酸源的酸与来自二氧化碳源的二氧化碳组合，并且在酸化操作期间由压力源加压的合并的酸和二氧化碳被喷射到井筒中。 可以提供位于地球表面或井下的处理器。 处理器可以监测酸/二氧化碳组合中二氧化碳和酸的相对比例以及井眼注射部位的酸/二氧化碳组合的压力。 酸化操作管理决定可以基于所监测的相对比例和/或所监测的压力进行。
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3.发明授权公开(公告)号：US09098889B2
公开(公告)日：2015-08-04
申请号：US13752859
申请日：2013-01-29
Applicant: Schlumberger Technology Corporation
Inventor： Weishu Zhao , Xiangdong Qiu , Steve Dyer
CPC classification number: G06T7/0004 , E21B49/005 , G06T17/05 , G06T2207/10081 , G06T2207/30132 , G06T2210/24
Abstract: In one embodiment, the current application discloses a method comprising: performing a computed tomography (CT) porosity scan on a core sample, the core sample comprising a portion of a formation of interest; in response to the CT porosity scan, interpreting a porosity profile of the core sample; and in response to the porosity profile, modeling a response of a formation of interest to a predetermined treatment to determine a reacted formation configuration, wherein the predetermined treatment comprises an acid fluid treatment schedule, and wherein the modeling further comprises modeling acid fluid flow through the formation of interest having the porosity profile, and wherein the modeling further comprises accounting for acid reaction products during the predetermined treatment and shut-in period.
Abstract translation: 在一个实施例中，本申请公开了一种方法，包括：在核心样本上执行计算机断层摄影（CT）孔隙率扫描，所述核心样本包括感兴趣的形成部分; 响应于CT孔隙度扫描，解释核心样品的孔隙率分布; 并且响应于孔隙率分布，对预定处理的感兴趣的形成物的响应建模以确定反应的形成构型，其中所述预定处理包括酸流体处理计划，并且其中所述建模还包括模拟通过所述 形成具有孔隙率分布的兴趣，并且其中建模还包括在预定处理和关闭期间计算酸反应产物。
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公开(公告)号：US20150308224A1
公开(公告)日：2015-10-29
申请号：US14793237
申请日：2015-07-07
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Stephen Dyer , Athar Ali , Frank F. Chang , Xiangdong Qiu , Kuo-Chiang Chen
IPC: E21B34/06
CPC classification number: E21B34/06 , E21B34/063 , E21B41/0035 , E21B43/12 , E21B2034/007
Abstract: Systems and methods using enhanced flow control devices are described. The flow control devices can be selectively closed completely or have its effective flow area reduced to restrict production (or injection) by use of a chemical trigger mechanism. In addition, some of the systems described herein deploy specific targeted chemical tracers, dissolvable in the unwanted production fluid (e.g. water or gas). These chemical tracers once dissolved will enter the production stream and be identified at the surface. The identification will determine which segment of the completion is producing the unwanted fluid. According to some embodiments, an appropriate chemical trigger is placed, for example, by pumping down through the tubing and utilizing intelligent completion valve to place the chemical, or by spotting with coiled tubing and bullhead to the formation, or by other methods of chemical placement. The chemical trigger will only trigger the active chemical in the appropriate flow control device. This chemical will then change state—dissolve, create thermal reaction, create a pressure swell or expand—which in turn allows a mechanical device to shift position such that a valve in the flow control device closes, or reduces its flow by restricting the flow area by swelling/expansion of the active chemical.
Abstract translation: 描述使用增强的流量控制装置的系统和方法。 流量控制装置可以被完全选择性地关闭或者其有效流动面积减小以通过使用化学触发机构限制生产（或注入）。 此外，本文所述的一些系统部署特定的目标化学示踪剂，其可溶于不需要的生产流体（例如水或气体）中。 这些一次溶解的化学示踪剂将进入生产流，并在表面进行鉴定。 识别将确定完成的哪一段产生不需要的流体。 根据一些实施例，例如通过向下泵送管道并利用智能完井阀来放置化学品，或者通过用盘管和斗杆点样到地层或通过其他化学放置方法来放置合适的化学触发器 。 化学触发器只会在适当的流量控制装置中触发活性化学物质。 这种化学物质将改变状态溶解，产生热反应，产生压力膨胀或膨胀，这又允许机械装置移动位置，使得流量控制装置中的阀关闭，或通过限制流动面积来减少其流动 通过活性化学品的膨胀/膨胀。
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公开(公告)号：US09109440B2
公开(公告)日：2015-08-18
申请号：US13972669
申请日：2013-08-21
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Xiangdong Qiu , Frank F. Chang
Abstract: The subject disclosure relates to matrix acidizing. More specifically, systems and methods are described for estimating a diffusion coefficient for an acid fluid used to stimulate a subterranean reservoir wherein a spent acid is formulated that includes one or more by-products of the reaction between the fluid and rock. A rock sample, such as in the form of a rotating disk is exposed to spent acid under elevated pressure and temperature conditions while the fluid is sampled and analyzed. A diffusion coefficient for the spend acid is estimated.
Abstract translation: 本发明涉及基质酸化。 更具体地，描述了用于估计用于刺激地下储层的酸性流体的扩散系数的系统和方法，其中配制废酸，其包括流体和岩石之间的反应的一种或多种副产物。 在采样和分析流体的同时，在升高的压力和温度条件下，将诸如旋转盘形式的岩石样品暴露于废酸。 估计消耗酸的扩散系数。
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Patent Agency Ranking
6.发明授权公开(公告)号：US11237144B2
公开(公告)日：2022-02-01
申请号：US15946729
申请日：2018-04-05
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Xiangdong Qiu , Abdul Muqtadir Mohammed , Mustapha Abbad , Reza Taherian
Abstract: In an embodiment a method is described which includes emplacing a sample within a measurement cell, wherein two or more electrodes are configured in the measurement cell; introducing a reactive fluid into the measurement cell; reacting the sample with the reactive fluid, wherein reacting the sample with the reactive fluid results in a change in an ion concentration in the reactive fluid; and measuring the resistivity of the reactive fluid using the two or more electrodes, wherein the resistivity is proportional to the ion concentration in the reactive fluid.
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公开(公告)号：US20180273834A1
公开(公告)日：2018-09-27
申请号：US15469861
申请日：2017-03-27
Applicant: Schlumberger Technology Corporation
Inventor： Xiangdong Qiu , Dominic Joseph Brady , Ziad Al-Jalal , Mohan Kanaka Raju Panga , Christopher Daeffler
CPC classification number: C09K8/725 , C09K8/602 , C09K8/72 , C09K8/74 , C09K8/82 , C09K8/86 , C09K2208/30 , C09K2208/32
Abstract: Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.
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公开(公告)号：US20160024914A1
公开(公告)日：2016-01-28
申请号：US14550168
申请日：2014-11-21
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Mehdi Ghommem , Reza Taherian , Stephen John Remane Dyer , Xiangdong Qiu
Abstract: A logging tool is disposed in a wellbore during an acidizing operation. The logging tool may be an acoustic tool, a resistivity tool, or a neutron tool. Measurements are made using the logging tool on a region of a formation penetrated by the wellbore and being subjected to the acidizing operation. A formation property is inferred at one or more depths of investigation within the region using the measurements, and acidizing operation management decisions are made based on the determined inferred property. The inferred property may also be simulated. A minimized difference between the inferred formation property and the corresponding simulated formation property is determined, and acidizing operation management decisions are made based on the determined difference. The inferred property may be acoustic velocity, conductivity peak observation time, near-to-far detector count ratio, or porosity. An acidizing operation management decision may be to maintain, increase, or decrease an acid injection rate.
Abstract translation: 在酸化操作期间，测井工具设置在井眼中。 测井工具可以是声学工具，电阻率工具或中子工具。 使用测井工具在井眼穿透的地层区域进行测量，并进行酸化操作。 使用测量在区域内的一个或多个调查深度推断地层属性，并且基于所确定的推断属性进行酸化操作管理决定。 也可以模拟推断的属性。 确定推断的形成特性与相应的模拟形成特性之间的最小化差异，并根据所确定的差异进行酸化操作管理决定。 推断的属性可以是声速，电导峰观测时间，近到远检测器计数比或孔隙度。 酸化操作管理决定可以是维持，增加或降低酸注射速率。
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9.发明申请公开(公告)号：US20140212006A1
公开(公告)日：2014-07-31
申请号：US13752859
申请日：2013-01-29
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Weishu Zhao , Xiangdong Qiu , Steve Dyer
IPC: G06T17/05
CPC classification number: G06T7/0004 , E21B49/005 , G06T17/05 , G06T2207/10081 , G06T2207/30132 , G06T2210/24
Abstract: In one embodiment, the current application discloses a method comprising: performing a computed tomography (CT) porosity scan on a core sample, the core sample comprising a portion of a formation of interest; in response to the CT porosity scan, interpreting a porosity profile of the core sample; and in response to the porosity profile, modeling a response of a formation of interest to a predetermined treatment to determine a reacted formation configuration, wherein the predetermined treatment comprises an acid fluid treatment schedule, and wherein the modeling further comprises modeling acid fluid flow through the formation of interest having the porosity profile, and wherein the modeling further comprises accounting for acid reaction products during the predetermined treatment and shut-in period.
Abstract translation: 在一个实施例中，本申请公开了一种方法，包括：在核心样本上执行计算机断层摄影（CT）孔隙率扫描，所述核心样本包括感兴趣的形成部分; 响应于CT孔隙度扫描，解释核心样品的孔隙率分布; 并且响应于孔隙率分布，对预定处理的感兴趣的形成物的响应建模以确定反应的形成构型，其中所述预定处理包括酸流体处理计划，并且其中所述建模还包括模拟通过所述 形成具有孔隙率分布的兴趣，并且其中建模还包括在预定处理和关闭期间计算酸反应产物。
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公开(公告)号：US20230279284A1
公开(公告)日：2023-09-07
申请号：US18315119
申请日：2023-05-10
Applicant: Schlumberger Technology Corporation
Inventor： Xiangdong Qiu , Dominic Joseph Brady , Ziad Al-Jalal , Mohan Kanaka Raju Panga , Christopher Daeffler
CPC classification number: C09K8/725 , C09K8/72 , C09K8/82 , C09K2208/32
Abstract: Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parameter values of the formation. Also described is a method for treating a subterranean formation by introducing an acid to the formation following the introduction of an acid retarding agent to the formation. Also described is a method for acid fracturing a subterranean formation including reducing the concentration of an acid retarding agent contained in a retarded acidizing fluid over the course of the acid fracturing operation.
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