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1. 发明授权

US5644076A Wireline formation tester supercharge correction method 失效
标题翻译：电线形成测试仪增压校正方法
公开(公告)号：US5644076A
公开(公告)日：1997-07-01
申请号：US614617
申请日：1996-03-14
申请人： Mark A. Proett , Margaret C. Waid , Wilson C. Chin
发明人： Mark A. Proett , Margaret C. Waid , Wilson C. Chin
IPC分类号： E21B49/00 , E21B49/10 , E21B47/00
CPC分类号： E21B49/10 , E21B49/008
摘要： An improved formation testing method increases the accuracy of in-situ formation pressure measurements by characterizing the mudcake properties. Specifically, after a formation tester is lowered to a desired depth within a wellbore, a pad is extended to gently abut and seal against the mudcake without disturbing the mudcake. When pressed against the mudcake, the pad experiences momentarily higher pressures, which are measured by a probe housed by the pad. These pressures may be enhanced by briefly rejecting fluids through the probe, so as to avoid disturbing the mudcake. The probe continues to measure pressure, which eventually decreases relative to hydrostatic pressure in the wellbore, due to the flow of high-pressure wellbore fluids through the mudcake. Since the rate of fluid flow outward into the formation is governed by the permeability of the mudcake, measuring the rate of pressure decline during this initial period provides useful data to more accurately estimate properties such as formation compressibility. Additionally, indicia of the mudcake properties themselves may be generated. After the initial mudcake tests, the formation tester may be used to perform drawdown and/or buildup tests, by a process of withdrawing or injection fluids into the formation through the mudcake.
摘要翻译：改进的地层测试方法通过表征泥浆性质来提高原位地层压力测量的准确度。具体地说，在将地层测试仪降低到井眼内所需的深度之后，将垫延伸以轻轻地抵靠并密封在泥饼上，而不会干扰泥饼。当压在泥饼上时，垫经历瞬间更高的压力，这是通过由垫容纳的探针来测量的。这些压力可以通过简单地通过探针排出流体来增强，以避免干扰泥饼。由于高压井眼流体通过泥饼的流动，探头继续测量压力，该压力最终相对于井筒中的静水压力而降低。由于流入地层的流体流速由泥饼的渗透率决定，因此在初始阶段测量压力下降速率提供了更为准确的估计地层压缩性能的数据。此外，可能产生泥饼性质本身的标记。在初始泥饼测试之后，地层测试仪可以用于通过将泥浆从地层中抽出或注入流体的过程进行抽水和/或堆积测试。

2. 发明授权

US5535177A MWD surface signal detector having enhanced acoustic detection means 失效
公开(公告)号：US5535177A
公开(公告)日：1996-07-09
申请号：US477987
申请日：1995-06-07
申请人： Wilson C. Chin , Kenneth H. Hamlin
发明人： Wilson C. Chin , Kenneth H. Hamlin
IPC分类号： E21B47/18 , H04R9/00
CPC分类号： E21B47/18
摘要： The acoustic detector in a mud pulse telemetry system includes a one dimensional waveguide disposed between a pressure transducer and a conduit carrying drilling fluid to a drill string. The waveguide, which may include a flexible hydraulic hose, increases the amplitude of the acoustic mud pulse signal received at the transducer located at the termination end by a factor of two or more. In addition, the waveguide may be substantially filled with a fluid having a viscosity higher than the viscosity of the drilling fluid so as to provide a means to dampen high frequency noise, and thereby improve the signal-to-noise ratio at the pressure transducer.

3. 发明授权

US07059179B2 Multi-probe pressure transient analysis for determination of horizontal permeability, anisotropy and skin in an earth formation 有权
公开(公告)号：US07059179B2
公开(公告)日：2006-06-13
申请号：US10254310
申请日：2002-09-25
申请人： Mark A. Proett , Wilson C. Chin
发明人： Mark A. Proett , Wilson C. Chin
IPC分类号： E21B49/00
CPC分类号： E21B49/008 , E21B49/10
摘要： The specification discloses a downhole tool that determines hydraulic permeability of a downhole formation taking into account one or both of the dip angle of the borehole relative to the formation, and damage to the borehole wall and invasion of borehole fluid—collectively referred to as skin.

4. 发明授权

US06327538B1 Method and apparatus for evaluating stoneley waves, and for determining formation parameters in response thereto 失效
标题翻译：评估Stoneley波的方法和装置，以及响应于此确定地层参数
公开(公告)号：US06327538B1
公开(公告)日：2001-12-04
申请号：US09024325
申请日：1998-02-17
申请人： Wilson C. Chin
发明人： Wilson C. Chin
IPC分类号： G01V130
CPC分类号： G01V1/50
摘要： A subsurface formation may be evaluated through use of data obtained from Stoneley wave propagation in the fluid column within the borehole. Either wave amplitude or phase velocity may be utilized to determine composite lithology parameters. These composite lithology parameters reflect fluid and/or formation characteristics, and functionally relate such characteristics in a manner as to facilitate the determination of formation permeability in a well logging environment.
摘要翻译：可以通过使用从钻井中的流体柱中的斯通利波传播获得的数据来评估地下地层。可以使用波幅或相速度来确定复合岩性参数。这些复合岩性参数反映了流体和/或地层特征，并且以便于确定测井环境中的地层渗透性的方式功能地将这些特征相关联。

5. 发明授权

US5969638A Multiple transducer MWD surface signal processing 失效
标题翻译：多传感器MWD表面信号处理
公开(公告)号：US5969638A
公开(公告)日：1999-10-19
申请号：US14188
申请日：1998-01-27
申请人： Wilson C. Chin
发明人： Wilson C. Chin
IPC分类号： G01V1/36 , G01V1/46 , G01V11/00 , G01V3/00
CPC分类号： G01V11/002 , G01V1/364 , G01V1/46
摘要： A system and method for signal processing are disclosed. One problem in measurement-while-drilling systems including a downhole acoustic transmitter is the presence of uphole generated noise and reflected signals. By proper spacing and timing of multiple transducers and measurements, the present invention filters from the received, corrupted signal the uphole noise and reflected signals. Thus, a more accurate depiction of the transmitted signal is generated uphole.
摘要翻译：公开了一种用于信号处理的系统和方法。包括井下声发射机在内的测量同时钻井系统中的一个问题是存在井眼产生的噪声和反射信号。通过适当的多个换能器和测量的间隔和定时，本发明从接收到的损坏的信号中滤除了高空噪声和反射信号。因此，在井上产生对发射信号的更准确的描绘。

6. 发明授权

US5831177A Fluid driven siren flowmeter 失效
标题翻译：流体驱动式警笛流量计
公开(公告)号：US5831177A
公开(公告)日：1998-11-03
申请号：US698286
申请日：1996-08-14
申请人： Margaret C. Waid , Wilson C. Chin , Jimmy Wayne Anders , Mark Proett
发明人： Margaret C. Waid , Wilson C. Chin , Jimmy Wayne Anders , Mark Proett
IPC分类号： E21B43/14 , E21B47/10 , E21B47/18 , G01F1/10 , G01F1/66 , G01F15/00 , G01F1/05
CPC分类号： G01F1/10 , E21B43/14 , E21B47/10 , E21B47/18 , E21B47/182 , G01F1/66
摘要： A system for determining fluid flow characteristics and relaying the information to the surface. The system is ideal for use in horizontal or deviated wellbores since orientation of the wellbore with respect to the vertical will not appreciably affect the system's operation. In the described embodiment, a fluid-driven siren flowmeter is placed within a production string downstream of the location of a completion zone, the flowmeter relays representative information downstream via a fluid column to a signal detection assembly. The flowmeter includes a stationary stator, a rotatable rotor and a turbine deflector which is positioned upstream of the rotor and angularly directs the flow of passing fluid to rotate the rotor. In the case of multiple completed zones described, multiple flowmeters are sequentially mounted along the same production string, each providing signals of different characteristics. The flow rates and fluid densities for production from each completion zone may be determined by installing flowmeters just downstream of each completion.
摘要翻译：用于确定流体流动特性并将信息中继到表面的系统。该系统非常适用于水平或偏斜的井筒，因为井筒相对于垂直方向的取向不会明显影响系统的运行。在所描述的实施例中，流体驱动的警报流量计被放置在完井区位置下游的生产线内，流量计通过流体塔向信号检测组件传递代表性信息。流量计包括固定的定子，可旋转的转子和位于转子上游的涡轮偏转器，并且角度地引导通过的流体的流动以使转子旋转。在描述多个完成的区域的情况下，沿着相同的生产线顺序安装多个流量计，每个流量计提供不同特征的信号。可以通过在每个完井的下游安装流量计来确定每个完井区的生产流量和流体密度。

7. 发明授权

US4785300A Pressure pulse generator 失效
标题翻译：压力脉冲发生器
公开(公告)号：US4785300A
公开(公告)日：1988-11-15
申请号：US924171
申请日：1986-10-28
申请人： Wilson C. Chin , Jose A. Trevino
发明人： Wilson C. Chin , Jose A. Trevino
IPC分类号： E21B47/18 , G01V1/00
CPC分类号： E21B47/182 , E21B47/18 , Y10T137/7786
摘要： An improved acoustic signal generator has rotor and stator elements, each having a plurality of radially-extending lobes and intervening ports relatively positioned and configured to establish fluid dynamic forces that bias the generator into an open position, thereby imparting a "stable open" characteristic to the generator. The rotor is located downstream of the stator, and rotor lobes are outwardly tapered in the downstream direction and have underlap relative to the upstream stator lobes. The invention is especially suited for use in oil industry MWD operations to communicate downhole measurement data to a well surface during drilling. In one embodiment, undercuts on the rotor lobes impart a flutter action which clears debris.
摘要翻译：一种改进的声信号发生器具有转子和定子元件，每个元件具有多个径向延伸的叶片和相对定位并且构造成中间的孔口，以建立将发生器偏置到打开位置的流体动力，由此赋予“稳定开放”特性发电机。转子位于定子的下游，并且转子叶片在下游方向上向外锥形并且相对于上游定子叶片具有下划线。本发明特别适用于石油工业MWD操作，以便在钻井过程中将井下测量数据传送到井表面。在一个实施例中，转子叶片上的底切施加了清除碎屑的颤动动作。

8. 发明授权

US5740126A Turbo siren signal generator for measurement while drilling systems 失效
公开(公告)号：US5740126A
公开(公告)日：1998-04-14
申请号：US568081
申请日：1995-12-06
申请人： Wilson C. Chin , Thomas E. Ritter
发明人： Wilson C. Chin , Thomas E. Ritter
IPC分类号： E21B47/18 , G01V1/40
CPC分类号： E21B47/182 , E21B47/18 , Y10S367/911 , Y10S367/912
摘要： A self-propelled turbo siren modulator assembly is disclosed for use in an MWD system. The turbo siren includes a fixed turbine deflector located upstream from a rotor, which in turn is located upstream from a fixed stator. Drilling mud flowing through the turbine deflector causes the rotor to rotate independent of any external drive device. The rotor and stator preferably have a similar configuration, which includes at least one lobe and at least one port so that the rotor alternatively blocks or permits mud flow through the port(s) of the stator to create a cyclical acoustic wave signal, with a frequency that depends upon the number of lobes on the rotor and the velocity of the drilling mud. Encoded measurement data is modulated on the carrier frequency wave through the use of amplitude modulation, frequency modulation or phase shift modulation, or a combination thereof to maximize data rates. In addition, a plurality of modulator assemblies may be provided, each of which includes a different number of lobes so as to operate at different, distinct frequencies to create a plurality of transmission channels in the drilling mud medium. These plurality of modulator assemblies therefore provide a plurality of separate carrier frequency signals on which data may be modulated to increase the rate at which data is transmitted to the surface of the well.

9. 发明授权

US5672819A Formation evaluation using phase shift periodic pressure pulse testing 失效
标题翻译：使用相移周期性压力脉冲测试的形成评估
公开(公告)号：US5672819A
公开(公告)日：1997-09-30
申请号：US615655
申请日：1996-03-13
申请人： Wilson C. Chin , Mark A. Proett
发明人： Wilson C. Chin , Mark A. Proett
IPC分类号： E21B49/00 , E21B49/10 , G01V1/46 , G01V1/52
CPC分类号： G01V1/52 , E21B49/00 , E21B49/008 , E21B49/10 , G01V1/46
摘要： The present invention provides an apparatus and method for determining geologic formation properties. A pressure wave is generated by a reciprocating piston transmitted to the formation by a probe. The pressure is sensed by a high accuracy quartz gauge in the probe. This pressure is compared to the pressure sensed at a spaced probe or to the flow rate of the piston to calculate permeability or other formation properties.
摘要翻译：本发明提供了一种确定地质构造特性的装置和方法。通过由探头传递到地层的往复活塞产生压力波。压力由探头中的高精度石英计检测。将该压力与在间隔开的探针处感测到的压力或活塞的流速进行比较以计算渗透性或其它形成性质。

10. 发明授权

US5459697A MWD surface signal detector having enhanced acoustic detection means 失效
标题翻译： MWD表面信号检测器具有增强的声检测装置
公开(公告)号：US5459697A
公开(公告)日：1995-10-17
申请号：US292090
申请日：1994-08-17
申请人： Wilson C. Chin , Kenneth H. Hamlin
发明人： Wilson C. Chin , Kenneth H. Hamlin
IPC分类号： E21B47/18 , H04H9/00
CPC分类号： E21B47/18
摘要： The acoustic detector in a mud pulse telemetry system includes a one dimensional waveguide disposed between a pressure transducer and a conduit carrying drilling fluid to a drill string. The waveguide, which may include a flexible hydraulic hose, increases the amplitude of the acoustic mud pulse signal received at the transducer located at the termination end by a factor of two or more. In addition, the waveguide may be substantially filled with a fluid having a viscosity higher than the viscosity of the drilling fluid so as to provide a means to dampen high frequency noise, and thereby improve the signal-to-noise ratio at the pressure transducer.
摘要翻译：泥浆脉冲遥测系统中的声学检测器包括设置在压力传感器和将钻井液携带至钻柱的导管之间的一维波导管。可以包括柔性液压软管的波导将位于终端处的换能器处接收到的声学泥浆脉冲信号的振幅增加了两倍或更多倍。此外，波导可以基本上被具有高于钻井液的粘度的粘度的流体填充，以便提供抑制高频噪声的装置，从而提高压力传感器处的信噪比。

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