公开(公告)号：US06209640B1

公开(公告)日：2001-04-03

申请号：US09532466

申请日：2000-03-22

Applicant: Nils Reimers ,  John W. Harrell ,  James V. Leggett, III ,  Paulo S. Tubel

Inventor： Nils Reimers ,  John W. Harrell ,  James V. Leggett, III ,  Paulo S. Tubel

IPC: E21B4700

CPC classification number: E21B49/087 ,  E21B23/03 ,  E21B33/1275 ,  E21B37/06 ,  E21B41/0035 ,  E21B41/02 ,  E21B43/12 ,  E21B43/122 ,  E21B43/123 ,  E21B43/16 ,  E21B43/20 ,  E21B43/25 ,  E21B43/26 ,  E21B43/385 ,  E21B47/00 ,  E21B47/011 ,  E21B47/06 ,  E21B47/065 ,  E21B47/10 ,  E21B47/101 ,  E21B47/1015 ,  E21B47/102 ,  E21B47/123 ,  E21B49/00 ,  E21B49/006 ,  E21B49/008 ,  E21B49/08 ,  G01D5/268 ,  G01N21/31 ,  G01V1/40 ,  G01V1/42 ,  G01V1/46 ,  G01V1/52 ,  G01V7/08 ,  G01V7/16 ,  G01V8/02

Abstract: The present invention provides a method for forming wellbores. In one method, one or more wellbores are drilled along preplanned paths based in part upon seismic surveys performed from the surface. An acoustic transmitter conveyed in such wellbores transmits acoustic signals at a one or more frequencies within a range of frequencies at a plurality of spaced locations. A plurality of substantially serially spaced receivers in the wellbores and/or at surface receive signals reflected by the subsurface formations. The sensors may be permanently installed in the boreholes and could be fiber optic devices. The receiver signals are processed by conventional geophysical processing methods to obtain information about the subsurface formations. This information is utilized to update any prior seismographs to obtain higher resolution seismographs. The improved seismographs are then used to determine the profiles of the production wellbores to be drilled. Borehole seismic imaging may then be used to further improve the seismographs and to plan future wellbores. Crosswell tomography may be utilized to further update the seismographs to manage the reservoirs. The permanently installed sensors may also be used to monitor the progress of fracturing in nearby wells and thereby provide the necessary information for controlling fracturing operations.

公开(公告)号：US5778154A

公开(公告)日：1998-07-07

申请号：US97643

申请日：1993-11-01

Applicant: Russell L. Bone ,  Meri Lynn Gobran ,  Tsai-Bao Kuo

Inventor： Russell L. Bone ,  Meri Lynn Gobran ,  Tsai-Bao Kuo

IPC: E21B49/00 ,  E21B49/08 ,  G06F17/00

CPC classification number: E21B49/087 ,  E21B49/00

Abstract: An advisor system and method for determining reservoir properties includes a processor accessible to a tutorial system module and an expert system module. An input/output interface accesses directly with the tutorial system module and with the expert system module through a bridge. The expert system module includes a "help" utility, a rule base, a correlations library and a program interface between the library and rule base. Based on the input, the rule base selects correlation subroutines from the correlation routine library necessary to determine the reservoir properties. The advisor system can provide advice on using available Pressure-Volume-temperature (PVT) laboratory reports and location of the reservoir property in the PVT laboratory report.

Abstract translation: 用于确定储层性质的顾问系统和方法包括辅助系统模块和专家系统模块可访问的处理器。 输入/输出接口直接访问教程系统模块，并通过桥接器与专家系统模块进行访问。 专家系统模块包括“帮助”实用程序，规则库，相关库和库与规则库之间的程序接口。 基于输入，规则库从确定储层性质所需的相关程序库中选择相关子程序。 顾问系统可以在PVT实验室报告中提供使用可用的压力 - 体积温度（PVT）实验室报告和储存性质位置的建议。

公开(公告)号：US5612493A

公开(公告)日：1997-03-18

申请号：US635168

申请日：1996-04-25

Applicant: Lloyd G. Alexander

Inventor： Lloyd G. Alexander

IPC: E21B49/00 ,  E21B49/08 ,  G01V1/00 ,  G09B23/40

CPC classification number: E21B49/087 ,  E21B49/008 ,  E21B49/086 ,  E21B2049/085

Abstract: A method is provided for simulating a linear solution gas curve for the determination of the gas-oil ratio for a crude oil well at any pressure using only surface measurements of the well's annular gas rate, a determination of the flowing bottom hole pressure, and knowledge of the bubble-point pressure. From the resulting curve, relationships can be formulated for determining the total produced gas rate. In an alternate embodiment, knowing the total gas rate for a crude oil well, a solution gas curve is simulated and the above relationships can be applied in reverse manner to predict several well characteristics, including either of the crude oil bubble-point pressure, the flowing bottom hole pressure, or the annular gas rate.

Abstract translation: 提供了一种模拟线性溶液气体曲线，用于仅使用井的环形气体速率的表面测量，流动的井底压力的确定和知识来确定原油井在任何压力下的瓦斯 - 油比 的泡点压力。 根据得到的曲线，可以制定关于确定总产气量的关系。 在替代实施例中，了解原油井的总气体速率，模拟溶液气体曲线，并且可以以相反的方式应用上述关系，以预测几个井特征，包括原油泡点压力， 流动的井底压力或环形气体速率。

公开(公告)号：US5503014A

公开(公告)日：1996-04-02

申请号：US281954

申请日：1994-07-28

Applicant: Michael J. Griffith

Inventor： Michael J. Griffith

IPC: E21B17/20 ,  E21B41/00 ,  E21B49/08 ,  E21B43/00 ,  E21B21/00

CPC classification number: E21B49/087 ,  E21B17/203 ,  E21B41/0021

Abstract: A new drill stem test apparatus and corresponding method includes a dual coaxial coiled tubing adapted to be disposed in the wellbore. The dual coaxial coiled tubing includes an inner coiled tubing, and an outer coiled tubing surrounding and enclosing the inner coiled tubing and forming an annular space which is located between the inner coiled tubing and the outer coiled tubing. The annular space is adapted to contain a pressurized kill fluid. A first end of the outer coiled tubing is sealed by a sealing element to a first end of the inner coiled tubing, the end of the inner coiled tubing extending beyond the sealing element and adapted to receive a formation fluid. The first ends of the inner and outer coiled tubing are disposed in a wellbore. A second end of the inner and outer coiled tubing is wound onto a coiled tubing reel and is connected to a kill fluid valve and a formation fluid valve. When the kill fluid valve opens while the formation fluid valve is closed, a pressurized kill fluid fills and pressurizes the annular space between the inner and outer coiled tubing. While the kill fluid valve is still open, the formation fluid valve is opened. A formation fluid begins to flow from the formation through the inner coiled tubing and through the formation fluid valve. If the inner coiled tubing forms a hole and begins to leak formation fluid, the pressurized kill fluid in the annular space will prevent the formation fluid in the inner coiled tubing from leaking out of the interior of the inner coiled tubing and into the annular space.

Abstract translation: 新的钻杆测试装置和相应的方法包括适于设置在井眼中的双同轴线圈管。 双同轴连续油管包括内部盘绕油管和围绕内部盘绕油管的外部盘绕油管，并形成位于内部盘绕油管和外部盘绕油管之间的环形空间。 环形空间适于容纳加压杀死流体。 外部盘绕管的第一端由密封元件密封到内部连续油管的第一端，内部盘绕管的端部延伸超过密封元件并适于接收地层流体。 内螺旋管和外螺旋管的第一端设置在井眼中。 内部和外部连续油管的第二端被卷绕在连续油管卷轴上，并连接到杀死流体阀和地层流体阀。 当地层流体阀关闭时，当杀伤流体阀打开时，加压的杀伤流体填充并加压内部和外部连续油管之间的环形空间。 当杀伤流体阀仍然打开时，地层流体阀打开。 地层流体开始从地层通过内部连续油管并通过地层流体阀流动。 如果内螺旋管形成孔并开始泄漏地层流体，则环形空间中的加压杀死流体将防止内部盘绕管道中的地层流体泄漏出内部盘绕管道的内部并进入环形空间。

公开(公告)号：US5361632A

公开(公告)日：1994-11-08

申请号：US874325

申请日：1992-04-24

Applicant: Charles F. Magnani

Inventor： Charles F. Magnani

IPC: E21B47/10 ,  E21B49/08 ,  G01F1/74 ,  G01F1/86 ,  G01N9/24

CPC classification number: E21B49/087 ,  E21B47/1015 ,  G01F1/74 ,  G01F1/86 ,  G01N9/24

Abstract: A method and apparatus determines three phase holdup fractions and flow rates for the individual phases of a fluid flowing in a well. A logging tool comprising a temperature compensated gradiomanometer having a differential pressure detector comprised of two pressure sensors and a nuclear densitometer having a beam source is lowered into a wellbore. The differential pressure between the pressure sensors is measured and an average fluid density is determined. The attenuation of a beam propagating from the beam source through the fluid and to the beam detector is measured, and holdup fractions of the fluid are calculated. Flow rates for the individual phases are determined by adding a flowmeter, and multiplying each holdup fraction by the total flow rate.

Abstract translation: 方法和装置确定在井中流动的流体的各个相的三相滞留量和流速。 包括具有由两个压力传感器组成的差压检测器和具有光束源的核密度计的温度补偿式梯度计的测井工具降低到井眼中。 测量压力传感器之间的压差并确定平均流体密度。 测量从束源传播通过流体和束检测器的光束的衰减，并计算流体的滞留部分。 通过添加流量计，并将每个滞留比例乘以总流量来确定各个相的流速。

公开(公告)号：US5207096A

公开(公告)日：1993-05-04

申请号：US713317

申请日：1991-06-11

Applicant: Yvon Castel ,  Jacques Lessi

Inventor： Yvon Castel ,  Jacques Lessi

IPC: E21B43/12 ,  E21B47/06 ,  E21B47/10 ,  E21B49/08

CPC classification number: E21B49/087 ,  E21B43/121 ,  E21B43/128 ,  E21B47/06 ,  E21B47/10

Abstract: The method involves introducing a pumping and measuring set into a production well fitted with a pipe or liner perforated in a part extending through a producing zone. This set is fastened to the end of a flow string and comprises an activation pump and at least one set for measuring the produced effluents. The improvement essentially consists in using secondary pumping means such as a positive-displacement type pump, for example, in order to suppress the pressure drop undergone by the effluents during passage through the measuring zone, which distorts the measured values and causes parasitic flows by bypassing between the liner and the wall of well. The extent of these leak rates can be measured through a variation of the flow rate of the positive-displacement pump.

Abstract translation: 该方法包括将泵送和测量装置引入装配有穿过生产区域的部分中穿孔的管道或衬管的生产井。 该组件固定在流动管柱的末端，并且包括活化泵和至少一个用于测量所产生的流出物的组件。 该改进主要在于使用例如正排量型泵的二次泵送装置，以便抑制在通过测量区域期间流出物经受的压降，其扭曲测量值并通过旁路引起寄生流 在衬垫和井的墙之间。 这些泄漏率的程度可以通过正排量泵的流量变化来测量。

公开(公告)号：US5186048A

公开(公告)日：1993-02-16

申请号：US582634

申请日：1990-09-13

Applicant: Brian Foster ,  John Blair

Inventor： Brian Foster ,  John Blair

IPC: E21B17/02 ,  E21B23/14 ,  E21B43/12 ,  E21B47/06 ,  E21B49/08

CPC classification number: E21B49/087 ,  E21B17/025 ,  E21B23/14 ,  E21B43/121 ,  E21B47/06

Abstract: Method and apparatus for logging a formation interval in a well when the fluids are produced therefrom by a downhole pump. The method comprises lowering into the well a tubing (10) carrying a downhole pump (14) and a logging assembly, the logging assembly comprising a support (31) releasably latched in the tubing at an upper position located a predetermined distance above the pump, a cable section (26) attached to the support and passing from the bore of the tubing to the well bore along the pump through a sealed passage (25), and a well logging tool (15) attached at the lower portion of the cable section in a protecting sleeve (28). When the pump is at the correct depth in the well, a cable is passed from the surface through the tubing and connected to the support (31) by means of a wet connector. The support is released from its upper latching position and lowered in the tubing for bringing the logging tool (15) to the formation interval (12). Then, the formation interval can be logged while fluids are pumped out from the interval by the downhole pump.

公开(公告)号：US5095983A

公开(公告)日：1992-03-17

申请号：US591906

申请日：1990-10-02

Applicant: Charles F. Magnani

Inventor： Charles F. Magnani

IPC: E21B33/127 ,  E21B43/14 ,  E21B43/34 ,  E21B47/10 ,  E21B49/08

CPC classification number: E21B49/087 ,  E21B33/127 ,  E21B43/14 ,  E21B43/34 ,  E21B47/10

Abstract: A method for providing improved measurement of oil, water, and gas flow rates in producing wells using thru-tubing wireline inflatable and retrievable packers or plugs to systematically isolate producing zones within a wellbore. Surface flow rates are measured before and after zonal isolation, with the zonal production rate determined by the measured difference in flow rate before and after isolation. Surface measurement of individual production zones allows greater accuracy in measuring multiphase flows, while at the same time allowing evaluation of reservoir properties of the lower, isolated zones.

Abstract translation: 一种用于通过管道电缆将可充气和可回收的封隔器或塞子系统地隔离在井眼内的生产区域来提供油井，水和气体流量的改进测量方法。 在区域分离之前和之后测量表面流速，区域生产速率由隔离前后流量的测量差异确定。 单个生产区域的表面测量可以提高测量多相流量的精度，同时可以评估较低隔离区域的储层特性。

公开(公告)号：US5042297A

公开(公告)日：1991-08-27

申请号：US422105

申请日：1989-10-16

Applicant: Jacques Lessi

Inventor： Jacques Lessi

IPC: E21B43/12 ,  E21B47/06 ,  E21B47/10 ,  E21B49/08

CPC classification number: E21B49/087 ,  E21B43/121 ,  E21B43/128 ,  E21B47/06 ,  E21B47/10

Abstract: A well logging process and device for use in a non-flowing production well, wherein the well is activated to trigger production of effluents on both sides of a first measuring arrangement, with at least a part of the effluents coming from upstream of the flow, relative to the measuring arrangement and being handled by the measuring arrangement.

Abstract translation: 一种用于非流动生产井的测井过程和装置，其中所述井被激活以触发在第一测量装置的两侧产生流出物，其中至少一部分流出物来自所述流动的上游， 相对于测量装置并由测量装置处理。

公开(公告)号：US4803873A

公开(公告)日：1989-02-14

申请号：US127584

申请日：1987-12-02

Applicant: Christine Ehlig-Economides

Inventor： Christine Ehlig-Economides

IPC: E21B47/06 ,  E21B47/10 ,  E21B49/00 ,  E21B49/08

CPC classification number: E21B49/087 ,  E21B47/06 ,  E21B47/10 ,  E21B49/008

Abstract: The invention concerns a process for measuring the flow as a function of time of the several layers of a subterranean multilayer hydrocarbon-producing formation through which a well is drilled, and for determining the parameters of formation by comparison of trends in well behavior shown by actual measurements with trends in behavior established theoretically. The flow rate contributions of individual layers (1 to 5) are determined from cumulative measurements made above successive layers by a flowmeter (13) moved vertically within a wellbore. Experimental curves are derived that represent the relative variations in time of the flowrates of layers (.DELTA.q.sub.j) or groups of layers in the formation using flowrate measurement points obtained when a total flowrate variation (.DELTA.Q) has been imposed on the well at a given time between two given constant values. These experimental curves are then compared to theoretical model curves (G, H) established for various values of the characteristic parameters of a subterranean formation, to determine values of the parameters of the formation.

Abstract translation: 本发明涉及一种测量作为时间的函数的流动的方法，所述地层是通过钻井钻井的地下多层烃产生地层的几层，并且通过比较实际的井行为趋势来确定地层的参数 理论上确定行为趋势的测量。 通过在井眼内垂直移动的流量计（13）在连续层上进行的累积测量确定各层（1至5）的流量贡献。 导出实验曲线，其表示当在给定的井处对井的总流量变化（DELTA Q）施加总流量变化（DELTA Q）时，使用流量测量点来表示地层中的层流（DELTA qj）或层组的时间的相对变化 两个给定常数值之间的时间。 然后将这些实验曲线与为地下地层特征参数的各种值建立的理论模型曲线（G，H）进行比较，以确定地层参数的值。