公开(公告)号：US07240546B2

公开(公告)日：2007-07-10

申请号：US10917173

申请日：2004-08-12

Applicant: Rocco DiFoggio

Inventor： Rocco DiFoggio

IPC: E21B49/08

CPC classification number: G01N29/036 ,  E21B49/081 ,  G01N2291/0256

Abstract: A formation fluid sample is exposed to a rigidly-supported semi-permeable membrane such as silicone rubber to permit diffusion of gases and vapors from the formation fluid into a vacuum chamber, while at the same time, blocking the passage of any liquids. The membrane-transmitted gas is analyzed in the vacuum chamber by a resonator that reacts with it. The resulting change in resonant frequency of the resonator indicates the presence of a gas that reacts with it. An ion pump or sorbent is associated with the evacuated chamber to maintain the vacuum. The ion pump or sorbent removes gases and vapors from the low-pressure chamber, which have diffused into it from the reservoir sample that is on the opposite (high-pressure) side of the semi-permeable membrane.

Abstract translation: 地层流体样品暴露于刚性支撑的半透膜如硅橡胶，以允许气体和蒸汽从地层流体扩散到真空室中，同时阻止任何液体的通过。 通过与其反应的谐振器在真空室中分析膜传输气体。 谐振器谐振频率的变化表明存在与其发生反应的气体。 离子泵或吸附剂与真空室相关联以维持真空。 离子泵或吸附剂从低压室中除去气体和蒸汽，这些气体和蒸气从半渗透膜的相对（高压）侧上的储层样品扩散到其中。

公开(公告)号：US20070129901A1

公开(公告)日：2007-06-07

申请号：US11638893

申请日：2006-12-14

Applicant: Rocco DiFoggio ,  Paul Bergren ,  Jun Han

Inventor： Rocco DiFoggio ,  Paul Bergren ,  Jun Han

IPC: G01N29/024 ,  G01N29/50 ,  E21B49/08

CPC classification number: E21B49/10 ,  G01N29/024 ,  G01N29/032 ,  G01N29/222 ,  G01N2291/02433

Abstract: A method of analyzing acoustic data comprising, determining fluid sound speed through connate fluid. The method involves sampling the fluid, sending an acoustic signal into the fluid between a first and a second reflective interface. Data is recorded that represents acoustic signals over time as they are reflecting from the interfaces. A smoothed first derivative with respect to time of the cumulative sum of squares (CSS) of the filtered amplitude data is determined. This first derivative is cross correlated to the time-shifted versions of itself.

Abstract translation: 一种分析声学数据的方法，包括：通过合成流体确定流体声速。 该方法包括对流体进行取样，将声信号发送到第一和第二反射界面之间的流体中。 记录数据，其随着时间的推移表示声信号，因为它们是从接口反射的。 确定相对于经滤波的振幅数据的累积平方和（CSS）的时间的平滑的一阶导数。 这个一阶导数与其本身的时移版本是交叉相关的。

公开(公告)号：US20070120051A1

公开(公告)日：2007-05-31

申请号：US11669616

申请日：2007-01-31

Applicant: Rocco DiFoggio ,  Raman Viswanathan ,  Jeffery Fontenot

Inventor： Rocco DiFoggio ,  Raman Viswanathan ,  Jeffery Fontenot

IPC: G01V5/08

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/26 ,  G01J3/42 ,  G01N21/35 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/552 ,  G01N21/8507 ,  G01N2201/0691 ,  G01N2201/129

Abstract: The disclosure, in one aspect, provides a method for providing an image of a fluid that includes passing light through the fluid, detecting light passing through the fluid at least one wavelength and producing signals corresponding to the detected light, and processing the signals to provide the image of the fluid.

Abstract translation: 在一个方面，本发明提供一种提供流体图像的方法，该方法包括使光通过流体，检测通过流体的光至少一个波长并产生对应于检测到的光的信号，并处理信号以提供 流体的形象。

公开(公告)号：US20070068242A1

公开(公告)日：2007-03-29

申请号：US11235570

申请日：2005-09-26

Applicant: Rocco DiFoggio

Inventor： Rocco DiFoggio

IPC: E21B47/08

CPC classification number: E21B47/102 ,  G01J3/443 ,  G01N21/6402 ,  G01N21/67 ,  G01N21/69 ,  G01N21/718 ,  G01N21/8507 ,  G01N33/2823 ,  G01N33/2835 ,  G01N2021/8528 ,  G01N2021/855

Abstract: The present invention provides a method and apparatus for performing elemental analysis of a formation fluid downhole. The present invention provides elemental analysis of a formation fluid downhole using breakdown spectroscopy. In one aspect of the invention, a method and apparatus are provided for performing laser induced breakdown on a formation fluid sample is provided. In another aspect of the invention a method and apparatus are provided for performing spark induced breakdown spectroscopy. Plasma is induced in a fluid under test downhole. Emissions from the plasma are analyzed to determine the elemental composition of the fluid under test. Emissions include but are not limited to light in the ultraviolet, visible, and near infrared regions of the spectrum. A spectrometer is provided for elemental analysis of a fluid downhole. Elemental analysis yields information about the fluid and the formation from which the fluid originated.

Abstract translation: 本发明提供一种对井下地层流体进行元素分析的方法和装置。 本发明使用击穿光谱法对井下地层流体进行元素分析。 在本发明的一个方面，提供一种用于在地层流体样品上进行激光诱发击穿的方法和装置。 在本发明的另一方面，提供了一种用于执行火花感应击穿光谱的方法和装置。 在井下测试的液体中诱导等离子体。 分析来自等离子体的排放以确定被测流体的元素组成。 辐射包括但不限于光谱的紫外线，可见光和近红外区域的光。 提供了一种用于对井下液体进行元素分析的光谱仪。 元素分析产生关于流体和流体产生的形成的信息。

公开(公告)号：US20060198742A1

公开(公告)日：2006-09-07

申请号：US11074124

申请日：2005-03-07

Applicant: Rocco DiFoggio ,  Jaedong Lee ,  T. Rajasingham

Inventor： Rocco DiFoggio ,  Jaedong Lee ,  T. Rajasingham

IPC: E21B49/08

CPC classification number: E21B49/087

Abstract: A sampling system used in collecting samples of connate fluid from within hydrocarbon bearing formations. The sampling system comprises a sonde disposed within a wellbore formed proximate to the formation of interest. The sonde includes a sample probe insertable into the formation and a drawdown pump in fluid communication with the sample probe. The drawdown pump is motivated by an associated electrically responsive material, where the electrically responsive material can be comprised of a piezoelectric material, a electroactive polymer, or some other electrically responsive material.

Abstract translation: 用于从含烃层内采集原生液体的采样系统。 采样系统包括设置在接近形成感兴趣的井筒内形成的探测器。 探头包括可插入地层的样品探针和与样品探针流体连通的抽油泵。 抽油泵由相关的电响应材料驱动，其中电响应材料可以由压电材料，电活性聚合物或一些其它电响应材料构成。

公开(公告)号：US20060175547A1

公开(公告)日：2006-08-10

申请号：US11051388

申请日：2005-02-04

Applicant: Rocco DiFoggio ,  Paul Bergren

Inventor： Rocco DiFoggio ,  Paul Bergren

IPC: G01V5/08

CPC classification number: G01J3/02 ,  G01J3/0218 ,  G01J3/26 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/552 ,  G01N21/8507 ,  G01N2201/0691 ,  G01N2201/129

Abstract: The present invention provides a method and apparatus for estimating a property of a fluid downhole by exposing the fluid to modulated light downhole and sensing changes in intensity of infrared radiation from the downhole fluid to estimate the property of the downhole fluid. The present invention senses changes in intensity of light by converting the changes to transient changes in temperature of a detector, such as a pyroelectric detector. The present invention performs spectroscopic analysis of fluids by optically filtering the light allowed to impinge on a pyroelectric detector, converting the changes in temperature of the pyroelectric detector to a signal and converting the signal to estimate the property of the downhole fluid. The light source is modulated by mechanically chopping the beam or by electrically pulsing the light source or by steering the beam between different path lengths of sample or between a reference cell (filled with a reference fluid or empty) and a sample-filled cell.

Abstract translation: 本发明提供了一种用于通过将流体暴露于井下调制光并且感测来自井下流体的红外辐射的强度的变化来估计井下流体的性质来估计井下流体的性质的方法和装置。 本发明通过将变化转换成诸如热电检测器的检测器的温度的瞬时变化来感测光强度的变化。 本发明通过对允许撞击在热电检测器上的光进行光学滤波来对流体进行光谱分析，将热释电检测器的温度变化转换为信号，并转换该信号以估计井下流体的性质。 通过机械地切割光束或通过电脉冲光源或通过在不同路径长度的样品之间或在参考单元（填充有参考流体或空的）和样品填充单元之间转向光束来调制光源。

公开(公告)号：US06907797B2

公开(公告)日：2005-06-21

申请号：US10341146

申请日：2003-01-13

Applicant: Rocco DiFoggio

Inventor： Rocco DiFoggio

IPC: E21B49/08 ,  E21B49/10

CPC classification number: E21B49/081

Abstract: A tank contains both Zeolite and a hydrate in a gas chamber formed beneath a piston in the sample tank. Out of safety considerations, we avoid using source cylinders of nitrogen whose pressures exceed 4000 psi. Thus, the gas chamber of the sample tank is initially pressurized by the source cylinder to no more than 4000 psi of nitrogen at room temperature at the surface. Nitrogen gas is sorbed onto the zeolite at room temperature. As the tank is heated by being lowered downhole, nitrogen desorbs from the zeolite and the gas pressure increases. However, once this tank reaches a temperature high enough to release the hydrate's water of hydration, the released water is preferentially sorbed by zeolite, displacing sorbed nitrogen, and causing the pressure in the gas volume to increase even further. Because well temperatures are not high enough to desorb water from zeolite, any water sorbed onto a Zeolite sorption site will permanently block released nitrogen from resorbing at that site. The process of lowering the tank downhole provides the necessary heating to make the entire process occur. Thus, if returned to the surface at room temperature with the original gas-chamber volume, the tank's pressure would not fall back to the original pressure (e.g., 4000 psi) but would be at a substantially higher pressure (e.g., 6000 psi or more depending on the amount of Zeolite used and gaseous nitrogen gas released).

Abstract translation: 罐体在样品槽中的活塞下方形成的气室中均包含沸石和水合物。 出于安全考虑，我们避免使用压力超过4000 psi的氮气源筒。 因此，样品罐的气室最初由源筒压力在室温下在表面不超过4000psi的氮气。 在室温下将氮气吸附到沸石上。 当罐被井下降温加热时，氮从沸石中脱附，气体压力增加。 然而，一旦该罐达到足够高的温度以释放水合物的水合水，则释放的水优选被沸石吸附，置换吸附的氮气，并使气体体积中的压力进一步增加。 由于井温不足以从沸石中解吸水，任何吸附在沸石吸附点上的水将永久阻止释放的氮气在该位置吸收。 降低井下油箱的过程提供必要的加热，使整个过程发生。 因此，如果在室温下以原始气室容积返回到表面，则罐的压力将不会回到原始压力（例如，4000psi），而是将处于基本上更高的压力（例如，6000psi或更高 取决于所使用的沸石的量和释放的气态氮气）。

公开(公告)号：US20050122839A1

公开(公告)日：2005-06-09

申请号：US10992797

申请日：2004-11-19

Applicant: Rocco DiFoggio ,  Peter Reittinger

Inventor： Rocco DiFoggio ,  Peter Reittinger

IPC: G01V1/16 ,  G01V1/42 ,  G01V1/46 ,  G01V1/00 ,  E21B49/00 ,  G04F13/00 ,  G04F13/02 ,  H03B17/00

CPC classification number: G01V1/16 ,  G01V1/46

Abstract: A system and method for acquiring seismic data are disclosed. The system comprises a controller for causing the generation of a seismic signal, where the controller has a first clock used for time-stamping a record of the generated seismic signal. A seismic receiver is deployed in a wellbore so as to detect the generated seismic signal. An atomic clock is disposed in or with the seismic receiver for time-stamping a record of the detected seismic signal. The atomic clock is synchronized with the first clock prior to being placed downhole.

公开(公告)号：US20050109098A1

公开(公告)日：2005-05-26

申请号：US10994579

申请日：2004-11-22

Applicant: Rocco DiFoggio

Inventor： Rocco DiFoggio

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

CPC classification number: E21B49/10 ,  E21B47/10

Abstract: The present invention provides a downhole method and apparatus using molecularly imprinted polymers to analyze a downhole fluid sample or determine the percentage of oil based mud filtrate contamination in a formation fluid sample.

Abstract translation: 本发明提供一种使用分子印迹聚合物分析井下流体样品或确定地层流体样品中基于油的泥浆滤液污染物的百分比的井下方法和装置。

公开(公告)号：US20050099618A1

公开(公告)日：2005-05-12

申请号：US10985715

申请日：2004-11-10

Applicant: Rocco DiFoggio ,  Paul Bergren

Inventor： Rocco DiFoggio ,  Paul Bergren

IPC: E21B47/06 ,  E21B49/10 ,  G01J3/26 ,  G01N21/00

CPC classification number: E21B49/10 ,  E21B47/06 ,  G01J3/26

Abstract: The present invention provides an apparatus and method for high resolution spectroscopy (approximately 10 picometer wavelength resolution) using a tunable optical filter (TOF) for analyzing a formation fluid sample downhole and at the surface to determine formation fluid parameters. The analysis comprises determination of gas oil ratio, API gravity and various other fluid parameters which can be estimated after developing correlations to a training set of samples using a neural network or a chemometric equation.

Abstract translation: 本发明提供了一种使用可调谐光学滤波器（TOF）进行高分辨率光谱仪（约10象素波长分辨率）的装置和方法，用于分析井下地层流体样品和表面以确定地层流体参数。 分析包括确定瓦斯油比率，API重力和各种其他流体参数，这些参数可以在使用神经网络或化学计量学方法与训练样本集相关联后进行估计。