METHOD AND SYSTEM FOR CONFIGURING CRUDE OIL DISPLACEMENT SYSTEM
    11.
    发明申请
    METHOD AND SYSTEM FOR CONFIGURING CRUDE OIL DISPLACEMENT SYSTEM 有权
    用于配置原油排放系统的方法和系统

    公开(公告)号:US20120143579A1

    公开(公告)日:2012-06-07

    申请号:US13322695

    申请日:2010-05-26

    CPC classification number: E21B44/00 C09K8/58 E21B43/16 E21B43/20 G05B17/02

    Abstract: A computer-implemented method for determining one or more operating modes for a crude oil displacement system is provided. The crude oil displacement system is arranged to inject an aqueous displacement fluid into one or more reservoirs, each reservoir comprising a porous and permeable rock formation, wherein crude oil and formation water are contained within a pore space of the rock formation. The crude oil displacement system is for use in displacing crude oil from the pore space of the rock formation. The computer-implemented method comprises the steps of receiving measurement data associated with one or more chemical characteristics of the displacement fluid and one or more chemical characteristics of the rock formation, the crude oil and the formation water of the one or more reservoirs, and inputting the measurement data and data representing a predetermined volume of oil into a computer-implemented predictive model. The predictive model is operated so as to generate predicted data indicative of a predicted additional amount of oil, compared to the predetermined volume of oil, that will be displaced by configuring the crude oil displacement system so as to inject the displacement fluid having the chemical characteristics into the one or more reservoirs. On the basis of the predicted data, the one or more operating modes of the crude oil displacement system are determined. A further computer-implemented method employing the predictive model in which predicted data indicative of one or more predicted chemical characteristics of the displacement fluid are generated is also provided. Additionally, a system for configuring a crude oil displacement system is provided.

    Abstract translation: 提供了一种用于确定原油排放系统的一种或多种操作模式的计算机实现的方法。 原油置换系统被布置成将含水置换流体注入到一个或多个储存器中,每个储存器包括多孔和可渗透的岩层,其中原油和地层水被包含在岩层的孔隙空间内。 原油排放系统用于从岩层孔隙空间中排除原油。 计算机实现的方法包括以下步骤:接收与位移流体的一种或多种化学特性相关联的测量数据和一个或多个储层的岩层,原油和地层水的一种或多种化学特征,以及输入 测量数据和表示预定油量的数据转换成计算机实现的预测模型。 操作该预测模型,以产生指示与预定体积的油相比预测的附加量的油的预测数据,其将通过配置原油排出系统而移位,以便将具有化学特性的置换流体 进入一个或多个储层。 根据预测数据,确定原油排放系统的一个或多个运行模式。 还提供了采用预测模型的进一步的计算机实现的方法,其中产生指示位移流体的一种或多种预测化学特性的预测数据。 另外,提供了一种用于配置原油排放系统的系统。

    Scale inhibition method
    12.
    发明授权
    Scale inhibition method 失效
    阻垢法

    公开(公告)号:US07640981B2

    公开(公告)日:2010-01-05

    申请号:US11658029

    申请日:2005-07-19

    Abstract: A scale inhibition method comprising: (a) injecting a dispersion of seed particles of an insoluble mineral salt in an aqueous medium into a formation through an injection well wherein the seed particles have an equivalent spherical diameter of 100% less than 100 nm, preferably 100% less than 50 nm, more preferably 100% less than 25 nm and the aqueous medium has dissolved therein precipitate precursor ions that form a precipitate of the insoluble mineral salt when contacted with resident ions in the formation; (b) allowing the dispersion to percolate through the subterranean formation towards production well and producing the dispersion from the production well; and (c) controllably precipitating the insoluble mineral salt onto the seed particles so as to reduce the deposition of the insoluble mineral salt onto the walls of the porous formation and/or onto the surface in the production well and/or onto the surface downstream of the production well.

    Abstract translation: 一种防垢方法,包括:(a)通过注射井将不溶性矿物质盐的种子颗粒分散在水性介质中注入地层,其中种子颗粒的当量球直径为100%小于100nm,优选为100 小于50nm,更优选100%小于25nm,并且水性介质中溶解有沉淀的前体离子,当与地层中的驻留离子接触时,其形成不溶性矿物盐的沉淀物; (b)允许分散体渗透穿过地层以生产良好并从生产井中产生分散体; 和(c)可控地将不溶性矿物盐沉淀到种子颗粒上,以便减少不溶性矿物盐沉积到多孔地层的壁上和/或沉积在生产井和/或表面下游的表面上 生产良好。

    Water flooding method
    13.
    发明申请
    Water flooding method 有权
    水驱法

    公开(公告)号:US20090050320A1

    公开(公告)日:2009-02-26

    申请号:US11921569

    申请日:2006-06-15

    CPC classification number: E21B43/20

    Abstract: A method of recovering hydrocarbons from a porous subterranean hydrocarbon-bearing formation by: (a) reducing the salinity of a saline source water by reverse osmosis using a membrane having a first surface and a second surface by (i) feeding the saline source water to the first surface of the membrane, and (ii) removing treated water of reduced salinity from the second surface of the membrane; and (b) injecting the treated water into the formation; wherein the membrane is selectively permeable to water over dissolved solids such that when (i) the saline source water has a total dissolved solids content of at least 17,500 ppm, and (ii) the applied pressure across the membrane is greater than the osmotic pressure across the membrane and lies within the range 45 to 90 bar (4.5 to 9.0 MPa), the total dissolved solids content of the treated water is in the range 500 to 5000 ppm. Increased oil recovery can be achieved.

    Abstract translation: 一种通过以下方法从多孔地下含烃地层中回收烃的方法:(a)通过使用具有第一表面和第二表面的膜通过反渗透来降低盐水源的盐度,所述膜通过(i)将盐水源供给到 膜的第一表面,和(ii)从膜的第二表面去除盐度降低的处理水; 和(b)将经处理的水注入地层; 其中所述膜选择性地可透过水溶解的固体,使得当(i)所述盐水源具有至少17,500ppm的总溶解固体含量时,以及(ii)所述膜上施加的压力大于所述渗透压 并且处于45至90巴(4.5至9.0MPa)的范围内,处理水的总溶解固体含量在500至5000ppm的范围内。 可以提高石油采收率。

    Desalination Method
    14.
    发明申请
    Desalination Method 有权
    脱盐方法

    公开(公告)号:US20080169098A1

    公开(公告)日:2008-07-17

    申请号:US11596974

    申请日:2005-05-19

    Abstract: A method of recovering hydrocarbons from a porous subterranean hydrocarbon-bearing formation comprising the steps of : a) feeding to at least on reverse osmosis unit of a desalination assembly a high salinity water feed stream having a total dissolved solids content (total salinity) of at least 10,000 ppm; b) driving a portion of the high salinity water feed stream across a membrane in the reverse osmosis unit of the desalination assembly at a pressure above the osmotic pressure of the high salinity water feed stream while excluding at least a portion of the dissolved solids from crossing said membrane to produce a treated low salinity water product stream having a total salinity of less than 5,000 ppm and a concentrated waste brine stream wherein the hydrostatic head exerted by the high salinity water feed stream on the feed side of the membrane provides at least a major component of the pressure required to overcome the osmotic pressure; c) injecting the low salinity water product stream into the hydrocarbon-bearing formation from an injection well; d) displacing the hydrocarbons with the low salinity water product stream toward an associated production well; and e) recovering hydrocarbons from the formation via the production well.

    Abstract translation: 一种从多孔地下含烃地层回收烃的方法,包括以下步骤:a)向脱盐组件的至少一个反向渗透装置供给具有总溶解固体含量(总盐度)为 至少10,000 ppm; b)在高盐度水进料流的渗透压的压力下,将高盐度水进料流的一部分驱动穿过脱盐组件的反渗透单元中的膜,同时排除至少一部分溶解的固体从交叉 所述膜产生总盐度小于5,000ppm的经处理的低盐度水产物流和浓缩废盐水,其中由膜上进料侧的高盐度水进料流施加的静水压头提供至少一个主要 组分克服渗透压所需的压力; c)从注入井将低盐度水产品流注入含烃地层; d)用低盐度水产品流将烃转移到相关的生产井; 和e)通过生产井从地层回收碳氢化合物。

    Method for inhibiting hydrate formation
    15.
    发明授权
    Method for inhibiting hydrate formation 失效
    抑制水合物形成的方法

    公开(公告)号:US07008466B2

    公开(公告)日:2006-03-07

    申请号:US10487596

    申请日:2002-07-25

    CPC classification number: F17D1/05 C09K8/52 C09K2208/22 C10L1/328 Y10S585/95

    Abstract: A method for inhibiting the formation of gas hydrates within a fluid comprising a gaseous hydrocarbon phase, a liquid hydrocarbon phase and an aqueous phase which method comprises mixing a polymeric emulsifier and optionally a non-ionic non-polymeric co-emulsifier with the fluid prior to subjecting the fluid to conditions under which gas hydrates can be formed so as to generate a water-in-oil emulsion comprising a discontinuous aqueous phase, a continuous liquid hydrocarbon phase and a substantially gas impermeable interfacial layer comprising said polymeric emulsifier and optionally said non-ionic non-polymeric co-emulsifier wherein the aqueous phase is distributed in the continuous liquid hydrocarbon phase in the form of droplets and the substantially gas impermeable interfacial layer encapsulates said droplets.

    Abstract translation: 一种用于抑制在包含气态烃相,液态烃相和水相的流体中形成气体水合物的方法,该方法包括将聚合乳化剂和任选的非离子非聚合共乳化剂与流体混合, 使流体经受能够形成气体水合物的条件,以便产生包含不连续水相,连续液态烃相和基本不透气的界面层的油包水乳液,所述界面层包含所述聚合乳化剂和任选的所述非水性乳液, 离子型非聚合共乳化剂,其中水相以液滴的形式分布在连续液相烃相中,并且基本上不透气的界面层包封所述液滴。

    Water-in-oil microemulsions useful for oil field or gas field applications and methods for using the same
    16.
    发明授权
    Water-in-oil microemulsions useful for oil field or gas field applications and methods for using the same 有权
    用于油田或气田应用的油包水微乳液及其使用方法

    公开(公告)号:US06581687B2

    公开(公告)日:2003-06-24

    申请号:US10014922

    申请日:2001-12-14

    CPC classification number: C09K8/82 C09K8/36 C09K8/52 Y10S507/902

    Abstract: A microemulsion comprising (i) an oil phase, (ii) an aqueous phase comprising an aqueous solution of a water soluble oil field or gas field production chemical or an aqueous dispersion of a water dispersible oil field or gas field production chemical and (iii) at least one surfactant, wherein the aqueous phase is distributed in the oil phase in the form of droplets having a diameter in the range 1 to 1000 mn or in the form of microdominans having at least one dimension of length, breath or thickness in the range 1 to 1000 nm.

    Abstract translation: 一种微乳液,其包含(i)油相,(ii)包含水溶性油田或气田生产化学品的水溶液的水相或水分散性油田或气田生产化学品的水分散体,以及(iii) 至少一种表面活性剂,其中所述水相以直径为1-1000nm的液滴形式分布在油相中,或以微米的形式分布在具有至少一个尺寸的长度,呼吸或厚度的范围内 1〜1000nm。

    Use of oil and gas field chemicals
    17.
    发明授权
    Use of oil and gas field chemicals 失效
    使用油气田化学品

    公开(公告)号:US06225263B1

    公开(公告)日:2001-05-01

    申请号:US09232185

    申请日:1999-01-15

    CPC classification number: C09K8/885 C09K8/58 C09K8/72

    Abstract: A method of recovering or increasing the recovery of oil and/or gas from an underground formation involving injecting into the formation, preferably in the form of an aqueous solution, at least one mono alkyl ether of polyethylene glycol in which the alkyl group has 3-5 carbons and the polyethylene glycol contains 3-6 ethylene oxy units e.g. butyl ether of triethylene glycol. Especially preferred are mixtures comprising that and at least one mono alkyl ether of mono or di ethylene glycol e.g. a mixture of butyl triglycol ether, butyl tetraglycol ether, butyl pentaglycol ether and butyl diglycol ether. The method of the invention may be applied to well stimulation treatments such as water blocking, sand consolidation, sandstone acidizing and methods of increasing the recovery of oil such as tertiary oil recovery.

    Abstract translation: 回收或增加地下地层中油和/或气的回收的方法,包括将水溶液注入地层,优选以水溶液的形式,至少一种聚乙二醇的单烷基醚,其中烷基具有3- 5个碳原子和聚乙二醇含有3-6个乙烯氧基单元,例如 三甘醇的丁基醚。 特别优选的是包含该单体和至少一种单或二乙二醇单烷基醚的混合物, 丁基三甘醇醚,丁基四甘醇醚,丁基五乙二醇醚和丁基二甘醇醚的混合物。 本发明的方法可以应用于诸如阻水,砂固化,砂岩酸化的井刺激处理和增加油的回收率的方法,例如三次采油。

    Process for increasing effectiveness of production chemicals by reducing number of squeezing and shut-in operations required to increase production rate from an oil well
    18.
    发明授权
    Process for increasing effectiveness of production chemicals by reducing number of squeezing and shut-in operations required to increase production rate from an oil well 失效
    通过减少从油井提高生产率所需的挤压和关闭操作的数量来提高生产化学品的有效性的过程

    公开(公告)号:US06173780B1

    公开(公告)日:2001-01-16

    申请号:US09152268

    申请日:1998-09-14

    CPC classification number: C09K8/54 C09K8/524 C09K8/528 C09K2208/22

    Abstract: The invention relates to a process for increasing the effectiveness of production chemicals by reducing the number of squeezing and shut-in operations needed to increase the production rate from an oil well. The process includes injecting into an oil-bearing rock formation matrix a water-miscible formulation comprising: (a) a water-miscible surfactant which is an alkyltriglycol ether and (b) at least one water-miscible oil field or gas field production chemical. Components (a) and (b) are introduced either as a pre-formed, single, homogeneous composition, or simultaneously in parallel or sequentially in either order into the rock formation. After introduction of (a) and (b) into the oil-bearing rock formation, the well is shut-in for a period and, subsequently, the oil-bearing rock formation matrix is over-flushed with an oil.

    Abstract translation: 本发明涉及通过减少从油井提高生产率所需的挤压和关闭操作的数量来提高生产化学品的有效性的方法。 该方法包括向含油岩层基质中注入水混溶性制剂,其包含:(a)水混溶性表面活性剂,其为烷基三甘醇醚,和(b)至少一种水混溶性油田或气田生产化学品。 组分(a)和(b)作为预形成的,单一的,均匀的组合物引入,或者以任何顺序同时并入或并入岩层中。 将(a)和(b)引入含油岩层后,将井关闭一段时间,随后用含油岩石基体过冲。

    METHOD FOR MEASURING ROCK WETTABILITY
    19.
    发明申请
    METHOD FOR MEASURING ROCK WETTABILITY 有权
    测量岩石湿度的方法

    公开(公告)号:US20120241149A1

    公开(公告)日:2012-09-27

    申请号:US13513963

    申请日:2010-11-19

    CPC classification number: G01V3/32

    Abstract: A method of comparing a secondary oil recovery process with a tertiary oil recovery process, the secondary oil recovery process and the tertiary oil recovery process being applied to a substantially fluid-saturated porous medium containing an oil phase and an aqueous phase, the method comprising using relaxation time measurements in the calculation of a wettability index modification factor for the oil phase or the aqueous phase, thereby comparing the tertiary oil recovery process with the secondary oil recovery process.

    Abstract translation: 一种将二次采油工艺与三次采油工艺进行比较的方法,二次采油工艺和三次采油工艺应用于含油相和水相的基本上流体饱和的多孔介质中,该方法包括使用 在油相或水相的润湿性指数改性因子的计算中的松弛时间测量,从而将三次采油过程与二次采油过程进行比较。

    Hydrocarbon recovery process
    20.
    发明申请
    Hydrocarbon recovery process 有权
    烃回收过程

    公开(公告)号:US20120085555A1

    公开(公告)日:2012-04-12

    申请号:US13067720

    申请日:2011-06-22

    CPC classification number: E21B43/20 C09K8/58 Y10S507/904 Y10S507/936

    Abstract: Hydrocarbons are recovered from subterranean formations by waterflooding. The method comprises passing an aqueous displacement fluid via an injection well through a porous and permeable sandstone formation to release oil and recovering said released oil from a production well spaced from said injection well, wherein (a) the sandstone formation comprises at least one mineral having a negative zeta potential under the formation conditions; (b) oil and connate water are present in the pores of the formation; and (c) the fraction of the divalent cation content of the said aqueous displacement fluid to the divalent cation content of said connate water is less than 1.

    Abstract translation: 通过注水从地下地层中回收碳氢化合物。 该方法包括通过注入井将含水置换流体穿过多孔和可渗透的砂岩形成以释放油并从与所述注入井间隔开的生产井回收所述释放的油,其中(a)所述砂岩形成包括至少一种矿物, 在形成条件下的负ζ电位; (b)地层孔隙中存在油和合生水; 和(c)所述含水置换流体的二价阳离子含量与所述原生水的二价阳离子含量的比例小于1。

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