公开(公告)号：WO2020120976A1

公开(公告)日：2020-06-18

申请号：PCT/GB2019/053531

申请日：2019-12-12

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED

Inventor： MOORHOUSE, Saul ,  COLLINS, Ian R. ,  CROUCH, Jonathan

IPC: C09K8/528 ,  C09K8/536 ,  C01F7/00

Abstract: A scale inhibition fluid for use in a wellbore comprises a layered double hydroxide (LDH) having a scale inhibitor (SI) intercalated between positively-charged layers thereof. Also disclosed is a scale treatment fluid comprising such an LDH and SI and methods of making and using same. The material can be formed prior to use in a wellbore, formed during a treatment, formed within the wellbore, or the LDH can be recharged within a wellbore by injecting a SI after the material has been in place within the wellbore, or any combination thereof.

公开(公告)号：WO2020109426A2

公开(公告)日：2020-06-04

申请号：PCT/EP2019/082808

申请日：2019-11-27

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED

Inventor： THIRUVENKATANATHAN, Pradyumna

IPC: E21B47/10 ,  E21B41/00 ,  E21B47/12

Abstract: A method of identifying inflow locations along a wellbore comprises obtaining an acoustic signal from a sensor within the wellbore, determining a plurality of frequency domain features from the acoustic signal, and identifying, using a plurality of fluid flow models, a presence of at least one of a gas phase inflow, an aqueous phase inflow, or a hydrocarbon liquid phase inflow at one or more fluid flow locations. The acoustic signal comprises acoustic samples across a portion of a depth of the wellbore, and the plurality of frequency domain features are obtained across a plurality of depth intervals within the portion of the depth of the wellbore. Each fluid flow model of the plurality of fluid inflow models uses one or more frequency domain features of the plurality of the frequency domain features, and at least two of the plurality of fluid flow models are different.

公开(公告)号：WO2018210925A1

公开(公告)日：2018-11-22

申请号：PCT/EP2018/062714

申请日：2018-05-16

Applicant: BP CORPORATION NORTH AMERICA INC ,  BP EXPLORATION OPERATING COMPANY LIMITED

Inventor： DUMENIL, Jean-Charles ,  HEDDLE, Richard ,  WANG, Shaojun

IPC: E21B43/00 ,  E21B41/00

Abstract: A process for use in managing a hydrocarbon production system includes: selecting, from among a plurality of changes proposed to operating parameters of the hydrocarbon production system, the proposed change with the greatest estimated positive change in production; assessing whether the selected change violates an operating constraint; based on said assessment, producing a valid change based on at least the selected change or identifying the selected change as an unusable change, iterating the above steps, the iteration excluding the valid change from the plurality of proposed changes; and implementing at least one valid change, the number of implemented valid changes being less than the number of proposed changes.

公开(公告)号：WO2015059024A1

公开(公告)日：2015-04-30

申请号：PCT/EP2014/072206

申请日：2014-10-16

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED ,  CHAPPELL, David ,  FRAMPTON, Harry ,  RIMMER, Stephen ,  SAYWELL, Christopher

Inventor： CHAPPELL, David ,  FRAMPTON, Harry ,  RIMMER, Stephen ,  SAYWELL, Christopher

IPC: C09K8/588 ,  C08F2/20

CPC classification number: C09K8/588 ,  C08F2/20 ,  C09K8/035 ,  C09K2208/10

Abstract: Cross-linked polymeric microparticles having a volume average particle size diameter of from about 0.05 to about 10 μιη and comprising from about 0.01 to about 5 mol% of one or more hydrolytically labile, crystallisable cross-linking structural units based on the total structural unit content of the polymeric microparticles and wherein the cross-linking structural units are derived from one or more hydrolytically labile, crystallisable cross-linking monomers having a number average molecular weight in the range of from about 1,500 to about 40,000 Daltons and comprise at least one polyester chain having at least five -RC(0)0- ester groups in a linear arrangement wherein the R groups each represent an alkanediyl group or a substituted alkanediyl group and wherein the cross-linking monomers have at least two sites of ethylenic unsaturation. The microparticles also comprise structural units derived from a hydrophilic monomer. When a dispersion of the microparticles in an aqueous fluid is injected into a hydrocarbon-bearing formation, the labile cross-linking structural units hydrolyze thereby releasing free polymer chains that are soluble or dispersible in the aqueous fluid such that a viscosified aqueous solution is generated within the formation,

Abstract translation: 基于总结构单元含量，交联的聚合物微粒的体积平均粒度直径为约0.05至约10微摩尔，包含约0.01至约5摩尔％的一种或多种水解不稳定的可结晶的交联结构单元 的聚合物微粒，并且其中所述交联结构单元衍生自数均分子量在约1,500至约40,000道尔顿范围内的一种或多种水解不稳定的可结晶交联单体，并且包含至少一个聚酯链 具有至少五个-RC（O）O-酯基的线性排列，其中R基团各自表示烷二基或取代的烷二基，并且其中所述交联单体具有至少两个烯属不饱和位点。 微粒还包含衍生自亲水性单体的结构单元。 当将微粒在水性流体中的分散体注入含烃地层时，不稳定的交联结构单元水解，从而释放可溶于或可分散在含水流体中的游离聚合物链，使得在水溶液中产生粘稠水溶液 形成，

公开(公告)号：WO2013092906A3

公开(公告)日：2014-05-15

申请号：PCT/EP2012076473

申请日：2012-12-20

Applicant: BP EXPLORATION OPERATING ,  WOODS ANDREW W

Inventor： WOODS ANDREW W

IPC: E21B47/026

CPC classification number: E21B47/1005 ,  E21B47/026 ,  E21B47/065 ,  G01F1/6884 ,  G01F1/74

Abstract: Method for estimating the tilt of a layer of a reservoir by measuring the temperature of fluid in a production well at one or more locations (37A, 37B, 37C, 37D, 37E) within the production well at a plurality of points in time. The method comprises: receiving temperature data from the measuring devices, the temperature data being indicative of a temperature of fluid (38, 40) entering the production well; identifying a trend indicative of a change in temperature with time; identifying a velocity of fluid within the layer in a direction of flow of fluid within the layer; using the identified trend and the identified velocity to determine an estimate of the change in temperature by distance for the fluid, the distance being in a direction of flow of fluid within the layer; identifying a geothermal gradient indicative of a change with depth in the temperature of rock within and surrounding the reservoir; and determining a measure of the tilt of a layer in the reservoir based on the estimated change in temperature by distance and the geothermal gradient.

Abstract translation: 用于通过在多个时间点内测量生产井内的一个或多个位置（37A，37B，37C，37D，37E）的生产井中的流体的温度来估计储层层的倾斜的方法。 该方法包括：从测量装置接收温度数据，温度数据表示进入生产井的流体（38,40）的温度; 确定温度随时间变化的趋势; 识别层内流体在该层内的流动方向的速度; 使用所识别的趋势和所识别的速度来确定流体变化的距离的估计，所述距离在所述层内的流体的流动方向上; 识别指示随着储层内部和周围岩石的温度变化深度变化的地热梯度; 并且基于所估计的温度变化的距离和地热梯度来确定储层中的层的倾斜的度量。

公开(公告)号：WO2014049095A1

公开(公告)日：2014-04-03

申请号：PCT/EP2013/070138

申请日：2013-09-26

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED ,  BITZIOU, Eleni ,  HADDLETON, David Mark ,  MACPHERSON, Julie Victoria ,  UNWIN, Patrick Robert

Inventor： BITZIOU, Eleni ,  HADDLETON, David Mark ,  MACPHERSON, Julie Victoria ,  UNWIN, Patrick Robert

IPC: C02F5/14 ,  C02F5/12 ,  C02F1/00 ,  C02F1/68 ,  C02F103/10

CPC classification number: C02F1/008 ,  C02F1/683 ,  C02F5/125 ,  C02F5/145 ,  C02F2103/10

Abstract: A method of controlling scale formation in an oil production operation, the method comprising the steps of: (a) introducing a solution or dispersion of a scale inhibiting polymer comprising: (i) a plurality of polymer units including a scale inhibiting moiety, and (ii) at least one polymer unit including a tagging moiety, wherein the tagging moiety can be detected electrochemically, into an oil-bearing formation; (b) producing oil and aqueous fluids from the oil-bearing formation; (c) periodically or continuously measuring the concentration of scale inhibiting polymer in the produced aqueous fluids by electrochemical detection of the tagging moiety of the scale inhibiting polymer; and (d) introducing further scale inhibiting polymer into the oil-bearing formation when the measured concentration of scale inhibiting polymer in step (c) falls below a pre-determined minimum value.

Abstract translation: 一种在油生产操作中控制垢形成的方法，所述方法包括以下步骤：（a）引入抑垢聚合物的溶液或分散体，其包含：（i）多个包含防垢部分的聚合物单元和（ ii）包含标记部分的至少一个聚合物单元，其中标记部分可以电化学地检测到含油地层中; （b）从含油地层生产油和含水流体; （c）通过电化学检测阻垢聚合物的标记部分来定期或连续地测量所生产的含水流体中阻垢抑制聚合物的浓度; 和（d）当所测量的步骤（c）中的阻垢聚合物的浓度低于预定的最小值时，将进一步的阻垢聚合物引入含油地层中。

公开(公告)号：WO2014040622A1

公开(公告)日：2014-03-20

申请号：PCT/EP2012/067872

申请日：2012-09-12

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED ,  BARWISE, Tony ,  OSBORNE, Mark James

Inventor： BARWISE, Tony ,  OSBORNE, Mark James

IPC: G01V1/50 ,  E21B49/00

CPC classification number: G01V99/005 ,  G01V1/50 ,  G01V2210/62 ,  G06F17/18

Abstract: A computer-implemented method for determining an amount of hydrocarbon fluid present in a rock of a hydrocarbon-producing reservoir is provided. The rock comprises organic matter and porous and permeable inorganic matter. The method comprises the steps of receiving data relating to chemical and kinetic properties of the organic matter, rock lithology data, rock thickness and reservoir temperature and pressure data, inputting the received data into a computer-implemented model, and operating the model. The model operates to a) simulate hydrocarbon fluid generation in the rock based on the input data and thereby determine an amount of generated hydrocarbon fluid, b) generate predicted data, and c) determine a total amount of hydrocarbon fluid present in the rock based on the predicted data. The generated predicted data is indicative of i) an amount of the generated hydrocarbon fluid adsorbed onto a surface of the organic matter within the rock, ii) an amount of the generated hydrocarbon fluid present in the pores of the organic matter by determining the porosity of the organic matter, based on the chemical and kinetic properties of the organic matter, and iii) an amount of the generated hydrocarbon fluid present in the pores of the inorganic matter by determining the porosity of the inorganic matter, based on the rock lithology data. A corresponding system, a computer program and a computer readable medium are also provided.

Abstract translation: 提供了一种用于确定存在于产油储层岩石中的烃类流体的量的计算机实现的方法。 岩石包括有机物质和多孔和可渗透的无机物质。 该方法包括以下步骤：接收有机物的化学和动力学性质，岩石岩性数据，岩石厚度和储层温度和压力数据，将接收到的数据输入到计算机实现的模型中，并操作该模型。 该模型用于a）基于输入数据模拟岩石中的烃流体产生，从而确定产生的烃流体的量，b）产生预测数据，以及c）基于以下方式确定岩石中存在的烃流体的总量 预测数据。 产生的预测数据表示i）所产生的烃流体吸附在岩石内的有机物表面上的量，ii）通过确定有机物的孔隙中产生的烃流体的量， 基于有机物的化学和动力学性质，以及iii）通过基于岩石岩性数据确定无机物的孔隙率，以及iii）存在于无机物质的孔隙中的产生的烃类流体的量。 还提供了相应的系统，计算机程序和计算机可读介质。

公开(公告)号：WO2014028365A2

公开(公告)日：2014-02-20

申请号：PCT/US2013/054483

申请日：2013-08-12

Applicant: BP CORPORATION NORTH AMERICA, INC. ,  BP EXPLORATION OPERATING COMPANY LIMITED ,  ALLAN, Donald Graham ,  PARKER, David John ,  BLOME, Gregory Richard

Inventor： ALLAN, Donald Graham ,  PARKER, David John ,  BLOME, Gregory Richard

IPC: E21B34/04

CPC classification number: E21B41/04 ,  E21B33/038 ,  E21B33/047

Abstract: A system for producing hydrocarbons from a subsea wellbore includes a primary conductor extending into the seabed. In addition, the system includes a wellhead disposed at an upper end of the primary conductor. Further, the system includes a multi bore tubing hanger seated in the wellhead. Still further, the system includes a production tree mounted to the wellhead. The production tree includes a spool body and a production spool extending radially from the spool body. The production spool has an end comprising a connector. Moreover, the system includes a rotatable production guide base coupled to the primary conductor and configured to rotate about the wellhead. The production guide base includes a rigid alignment spool. The alignment spool has a first end releasably coupled to the production spool, a second end comprising a second connector, and non-linear deviation positioned between the first end and the second end.

Abstract translation: 用于从海底井筒生产碳氢化合物的系统包括延伸到海床中的主导体。 另外，该系统包括设置在主导体上端的井口。 此外，该系统包括一个安装在井口中的多孔油管悬挂器。 此外，该系统包括安装在井口上的生产树。 生产树包括卷轴主体和从卷轴主体径向延伸的生产卷轴。 生产线轴具有包括连接器的端部。 此外，该系统包括可旋转的生产引导件底座，该生产引导件底座联接到主要导体并且构造成围绕井口旋转。 生产指南基座包括一个刚性对准阀芯。 对准线轴具有可释放地联接到生产线轴的第一端，包括第二连接器的第二端以及定位在第一端和第二端之间的非线性偏差。

公开(公告)号：WO2013110542A1

公开(公告)日：2013-08-01

申请号：PCT/EP2013/050863

申请日：2013-01-17

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED ,  SAWARYN, Steven James

Inventor： SAWARYN, Steven James

IPC: E21B47/022

CPC classification number: E21B41/0092 ,  E21B7/04 ,  E21B47/022

Abstract: A computer-implemented method and a system are provided for determining the relative positions of a wellbore and an object, the wellbore being represented by a first ellipse and the object being represented by a second ellipse. The first ellipse represents the positional uncertainty of the wellbore and the second ellipse represents the positional uncertainty of the object. The method comprises the steps of: receiving input data relating to a measured or estimated position of the wellbore and the object, the position of the wellbore having a first set of parameters defining the first ellipse, and the position of the object having a second set of parameters defining the second ellipse; calculating an expansion factor representing an amount by which one, or both, of the first ellipse and the second ellipse can be expanded with respect to one or both of respective first and second sets of elliptical parameters so that the first and second ellipses osculate, wherein calculating the expansion factor involves determining and solving a quartic equation that is based on the geometry of the ellipses; and determining, based on the calculated expansion factor, position data indicative of the relative positions of the wellbore and the object.

Abstract translation: 提供了一种计算机实现的方法和系统，用于确定井眼和物体的相对位置，井眼由第一椭圆表示，物体由第二椭圆表示。 第一个椭圆表示井筒的位置不确定度，第二个椭圆表示物体的位置不确定度。 该方法包括以下步骤：接收与井眼和物体的测量或估计位置有关的输入数据，井眼的位置具有限定第一椭圆的第一组参数，以及具有第二组的物体的位置 定义第二个椭圆的参数; 计算膨胀系数，其表示第一椭圆和第二椭圆中的一个或两者相对于相应的第一和第二组椭圆参数中的一个或两个可以扩展的量，使得第一和第二椭圆密封，其中 计算膨胀系数涉及确定和求解基于椭圆几何的四次方程; 以及基于所计算的膨胀系数来确定指示所述井筒和所述物体的相对位置的位置数据。

公开(公告)号：WO2013092906A2

公开(公告)日：2013-06-27

申请号：PCT/EP2012/076473

申请日：2012-12-20

Applicant: BP EXPLORATION OPERATING COMPANY LIMITED ,  WOODS, Andrew W

Inventor： WOODS, Andrew W

IPC: G01F1/688 ,  G01F1/74 ,  E21B47/026

CPC classification number: E21B47/1005 ,  E21B47/026 ,  E21B47/065 ,  G01F1/6884 ,  G01F1/74

Abstract: There is provided a computer-implemented method for estimating a tilt of a layer of a reservoir, there being a production well extending into the layer of the reservoir configured such that fluid flows from the layer into the production well. The production well further comprises one or more devices arranged to measure a temperature of fluid at one or more locations within the production well at a plurality of points in time. The method comprises: receiving temperature data from the one or more devices, the temperature data being indicative of a temperature of fluid entering the production well from the layer at each of a plurality of points during a period of time; identifying, using the temperature data, a trend indicative of a change in temperature of the fluid entering the production well during the period of time; identifying a velocity of fluid within the layer in a direction of flow of fluid within the layer during the period of time; determining using the identified trend and the identified velocity, an estimate of the change in temperature by distance for the fluid, the distance being in a direction of flow of fluid within the layer; identifying a geothermal gradient indicative of a change with depth in the temperature of rock within and surrounding the reservoir; and determining a measure of the tilt of a layer in the reservoir based on the estimated change in temperature by distance and the geothermal gradient.

Abstract translation: 提供了一种用于估计储存器层的倾斜的计算机实现的方法，存在一个延伸到储存器层中的生产井，其被配置为使得流体从层流入生产井。 生产井还包括一个或多个装置，其布置成在多个时间点测量生产井内的一个或多个位置处的流体的温度。 该方法包括：从所述一个或多个装置接收温度数据，所述温度数据表示在一段时间内从所述多个点中的每个点处的层进入生产井的流体的温度; 使用温度数据识别指示在一段时间内进入生产井的流体的温度变化的趋势; 在所述时间段内识别所述层内的流体流动方向内的所述层内的流体速度; 使用所识别的趋势和所识别的速度来确定温度随流体的距离的估计，所述距离在所述层内的流体的流动方向; 识别指示随着储层内部和周围岩石的温度变化深度变化的地热梯度; 并且基于所估计的温度变化的距离和地热梯度来确定储层中的层的倾斜的度量。