Method for single-stage treatment of siliceous subterranean formations
    2.
    发明授权
    Method for single-stage treatment of siliceous subterranean formations 有权
    硅质地层单层处理方法

    公开(公告)号:US08312929B2

    公开(公告)日:2012-11-20

    申请号:US12019394

    申请日:2008-01-24

    IPC分类号: E21B43/28

    CPC分类号: C09K8/74

    摘要: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

    摘要翻译: 在处理由井眼渗透的含砂岩地层的方法中,形成包含基本上可溶于水性流体的含有布朗斯台德酸,氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2%的流体重量的氟化物(F-),和流体重量的2%或更少的钠(Na +)。 在引入处理流体之前,将处理流体作为单阶段通过井筒引入地层,而不将酸含量的流体预吹入地层中。

    Method for Single-Stage Treatment of Siliceous Subterranean Formations
    3.
    发明申请
    Method for Single-Stage Treatment of Siliceous Subterranean Formations 有权
    硅酸盐地层单阶段处理方法

    公开(公告)号:US20090192057A1

    公开(公告)日:2009-07-30

    申请号:US12053875

    申请日:2008-03-24

    IPC分类号: C09K8/86

    CPC分类号: C09K8/74

    摘要: In a method of treating a sandstone-containing formation penetrated by a wellbore, a treatment fluid comprising an aqueous fluid containing a Bronsted acid, a hydrogen fluoride source and an organic acid or salt thereof that is substantially soluble in the aqueous fluid is formed. The treatment fluid contains less than about 2% of fluoride (F−) by weight of the fluid and from 2% or less of sodium (Na+) by weight of the fluid. The treatment fluid is introduced into the formation through the wellbore as a single-stage without introducing an acid-containing fluid preflush into the formation prior to introducing the treatment fluid.

    摘要翻译: 在处理由井眼渗透的含砂岩地层的方法中,形成包含基本上可溶于水性流体的含有布朗斯台德酸,氟化氢源及其有机酸或其盐的含水流体的处理流体。 处理液含有少于约2%的流体重量的氟化物(F-),和流体重量的2%或更少的钠(Na +)。 在引入处理流体之前,将处理流体作为单阶段通过井筒引入地层,而不将酸含量的流体预吹入地层中。

    APPLICATION OF ALKALINE FLUIDS FOR POST-FLUSH OR POST-TREATMENT OF A STIMULATED SANDSTONE MATRIX
    5.
    发明申请
    APPLICATION OF ALKALINE FLUIDS FOR POST-FLUSH OR POST-TREATMENT OF A STIMULATED SANDSTONE MATRIX 审中-公开
    应用碱性液体进行后冲洗或后处理刺激性山体矩阵

    公开(公告)号:US20110220360A1

    公开(公告)日:2011-09-15

    申请号:US12722604

    申请日:2010-03-12

    CPC分类号: C09K8/72 C09K8/40 C09K2208/30

    摘要: Apparatus and method for treating a subterranean formation including forming a first fluid comprising low pH, introducing the first fluid into a subterranean formation, forming a second fluid comprising high pH, and introducing the second fluid into the formation. Apparatus and method for treating a subterranean formation including introducing a acidizing fluid into a subterranean formation, introducing an inert spacer into the formation, introducing an alkaline fluid into the formation, and introducing a brine or a solvent overflush fluid.

    摘要翻译: 用于处理地下地层的设备和方法,包括形成包含低pH的第一流体,将第一流体引入地下地层,形成包含高pH的第二流体,并将第二流体引入地层中。 用于处理地下地层的装置和方法,包括将酸化流体引入地层,将惰性间隔物引入地层中,将碱性流体引入地层,以及引入盐水或溶剂冲洗流体。

    SYSTEM AND METHOD FOR RESERVOIR CHARACTERIZATION
    6.
    发明申请
    SYSTEM AND METHOD FOR RESERVOIR CHARACTERIZATION 有权
    用于储层特征的系统和方法

    公开(公告)号:US20120012308A1

    公开(公告)日:2012-01-19

    申请号:US12838945

    申请日:2010-07-19

    IPC分类号: E21B47/00

    摘要: A method for determining flow distribution in a formation having a wellbore formed therein includes the steps of positioning a sensor within the wellbore, wherein the sensor generates a feedback signal representing at least one of a temperature and a pressure measured by the sensor, injecting a fluid into the wellbore and into at least a portion of the formation adjacent the sensor, shutting-in the wellbore for a pre-determined shut-in period, generating a simulated model representing at least one of simulated temperature characteristics and simulated pressure characteristics of the formation during the shut-in period, generating a data model representing at least one of actual temperature characteristics and actual pressure characteristics of the formation during the shut-in period, wherein the data model is derived from the feedback signal, comparing the data model to the simulated model, and adjusting parameters of the simulated model to substantially match the data model.

    摘要翻译: 一种用于确定具有在其中形成的井眼的地层中的流动分布的方法包括将传感器定位在井眼内的步骤,其中传感器产生表示由传感器测量的温度和压力中的至少一个的反馈信号, 进入井眼并进入毗邻传感器的地层的至少一部分,在井眼中关闭预定的关闭周期,产生表示模拟温度特性和地层的模拟压力特性中的至少一个的模拟模型 在关闭期间,生成表示关闭期间地层的实际温度特性和实际压力特性中的至少一个的数据模型,其中从反馈信号导出数据模型,将数据模型与 模拟模型,并调整模拟模型的参数以使数据模型基本匹配。

    METHOD OF DETERMINING END MEMBER CONCENTRATIONS
    7.
    发明申请
    METHOD OF DETERMINING END MEMBER CONCENTRATIONS 有权
    确定最终会员浓度的方法

    公开(公告)号:US20110139442A1

    公开(公告)日:2011-06-16

    申请号:US12635002

    申请日:2009-12-10

    IPC分类号: E21B49/08 E21B47/00

    CPC分类号: E21B49/08 E21B47/10

    摘要: A method of determining a concentration of a component in a flow from a single source or layer contributing to a total flow using the steps of measuring the total flow rate at various depths and sampling the total flow at a depth between two successive sources, measuring a total concentration of one or more flow components within the total flow, repeating the measuring of the total flow rate, the sampling and total concentration in further intervals separating other pairs of successive sources, and determining the concentration of at least one component by solving a system of mass balance equations representing the total flow of the flow components at each sampling depth.

    摘要翻译: 使用以下步骤确定来自有助于总流量的单个源或层的流中的组分的浓度的方法,所述步骤是测量各个深度处的总流量,并在两个连续的源之间的深度处采样总流量,测量 在总流量内的一个或多个流动组分的总浓度,重复测量总流速,采样和总浓度进一步分隔其他对连续的源,并通过求解系统来确定至少一个组分的浓度 的质量平衡方程代表每个采样深度处的流量分量的总流量。

    METHODS FOR TESTING STIMULATION FLUIDS
    8.
    发明申请
    METHODS FOR TESTING STIMULATION FLUIDS 审中-公开
    检测刺激液的方法

    公开(公告)号:US20120043078A1

    公开(公告)日:2012-02-23

    申请号:US12858592

    申请日:2010-08-18

    IPC分类号: E21B49/08

    摘要: A method of testing the performance of a stimulation fluid by placing a sample of the stimulation fluid or a precursor thereof into the body of a downhole tool, positioning the tool in juxtaposition with a rock face at a downhole location, forming a sealing contact between the rock face and the tool; and injecting the sample into the rock face while monitoring pressure and/or flow rates during the injection of the sample into and/or production of formation fluid from the rock face to derive a measure of the effectiveness of the stimulation fluid in creating openings in the rock face.

    摘要翻译: 一种通过将刺激流体或其前体的样品放置在井下工具的主体中来测试刺激流体的性能的方法,将工具与岩石表面并置在井下位置处,形成在井下工具之间的密封接触 摇滚的脸和工具; 以及在将样品注入岩石表面和/或从岩石表面产生地层流体期间监测压力和/或流速的同时将样品注入岩石表面,以得出刺激流体在产生开口中的有效性的量度 摇滚的脸。

    Composition comprising a fully dissolved non-HF fluoride source and method for treating a subterranean formation
    9.
    发明授权
    Composition comprising a fully dissolved non-HF fluoride source and method for treating a subterranean formation 有权
    包含完全溶解的非氟化氢源的组合物和用于处理地层的方法

    公开(公告)号:US07589050B2

    公开(公告)日:2009-09-15

    申请号:US11673008

    申请日:2007-02-09

    IPC分类号: C09K8/60 E21B43/22

    摘要: An aqueous oilfield treatment fluid containing a chelating agent and an HF source is described. This fluid is effective at dissolving siliceous materials such as clays and keeping the dissolved materials in solution. In particular it is effective at preventing re-precipitation of initially-dissolved silicon as silica and therefore reduces damage to sandstones with which it is contacted. Methods are given for using this fluid for sandstone matrix stimulation, removal of clay-containing drilling fluid components and filter cakes from wellbores, sandstone acid fracturing, and gravel pack and proppant pack cleaning.

    摘要翻译: 描述了含有螯合剂和HF源的含水油田处理液。 该溶液有效地溶解硅质材料如粘土并将溶解的材料保持在溶液中。 特别是,防止初始溶解的硅作为二氧化硅再沉淀,因此减少与其接触的砂岩的损害。 给出了使用这种流体用于砂岩基质刺激,去除含粘土的钻井液组分和来自井筒,砂岩酸压裂以及砾石填料和支撑剂填料清洁的滤饼的方法。