| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | MONITORING DOWNHOLE PARAMETERS USING MEMS | US14919975 | 2015-10-22 | US20160040524A1 | 2016-02-11 | Krishna M. Ravi; Craig W. Roddy; Ricky L. Covington |
| A method for measuring parameters related to wellsite operations comprises mixing Micro-Electro-Mechanical System (MEMS) sensors with a wellbore servicing composition in surface wellbore operating equipment. The MEMS sensors are assigned a unique identified that may be used to track individual MEMS sensor as the MEMS sensors travel through the wellbore and may be used to correlate sensor measurements taken by the MEMS sensors with particular locations in the wellbore. The MEMS sensors may be active and transmit their respective identifiers and sensor data to the surface. Transmitting identifier and sensor data from a MEMS sensor to the surface wellbore operating equipment may be via one or more other MEMS sensors, downhole devices, and surface devices. | ||||||
| 222 | DETERMINING CEMENT IMPEDANCE FROM A FORMATION BOUNDARY | US14418737 | 2014-07-15 | US20160033664A1 | 2016-02-04 | Arthur Chuen Hon Cheng; Mark Elliott Willis; Tatiana Gilstrap; Robert Eric Epstein |
| Systems, methods, and software for determining properties of a medium surrounding an exterior portion of a well casing are described. In some aspects, the properties of the medium are determined based on measurements of detected acoustic energy and distances between one or more acoustic transmitters and two or more acoustic receivers. The measurements are obtained based on operating the transmitters and the receivers within a wellbore that includes the well casing. | ||||||
| 223 | Systems, methods, and apparatuses for in situ monitoring of cement fluid compositions and setting processes thereof | US13615744 | 2012-09-14 | US09228940B2 | 2016-01-05 | Michael T. Pelletier; Christopher Michael Jones; B. Raghava Reddy; Ashok K. Santra |
| Optical analysis systems, methods, and apparatuses for analyzing fluids may be useful for in situ monitoring fluids that relate to cementing operations. For example, a method may include containing a cement fluid composition in a flow path comprising a wellbore; and optically interacting the cement fluid composition with an integrated computational element, thereby generating an output signal corresponding to a characteristic of the cement fluid composition, the integrated computational element being coupled to a tool. | ||||||
| 224 | Downhole flow measurements with optical distributed vibration/acoustic sensing systems | US13896418 | 2013-05-17 | US09222828B2 | 2015-12-29 | Michael L. Fripp; Neal G. Skinner |
| A method of verifying a substance interface location during a cementing operation can include optically measuring vibrations caused by substances flowing across structures distributed along a wellbore, the vibrations being caused at each structure, and the vibrations changing at each structure as the interface displaces across the structure. A method of determining a property of at least one substance flowed in a wellbore can include optically measuring vibrations caused by the substance flowing across structures distributed along a wellbore, the vibrations being caused at each structure, and the structures having different shapes, thereby causing the vibrations at the structures to be different from each other when the substance flows across the differently shaped structures. | ||||||
| 225 | Cementing plug tracking using distributed strain sensing | US13562456 | 2012-07-31 | US09222349B2 | 2015-12-29 | Michel Joseph LeBlanc |
| Various systems and methods for cementing plug tracking using distributed strain sensing include a downhole cementing apparatus that includes a distributed strain sensor with an optical cable and a first downhole cementing plug coupled to a fixed point on the optical cable. The apparatus further includes a second downhole cementing plug slidably coupled to the optical cable between the first downhole cementing plug and a sensing end of the optical cable. The second downhole cementing plug causes a detectable feature in a strain profile along the optical cable's length that indicates a position of the second downhole cementing plug. | ||||||
| 226 | Equipment and methods for determining waiting-on-cement time in a subterranean well | US13993322 | 2011-12-07 | US09212548B2 | 2015-12-15 | Pierre Vigneaux; Nicolas Flamant; Thomas Barrou |
| Improved equipment and methods for determining the waiting-on-cement time after a cementing operation involve an optic-fiber coil that immersed in the cement slurry downhole. The intensity of a reflected light signal from the coil is monitored versus time. Attenuation of the reflected-light intensity corresponds to the development of gel strength, allowing operators to unambiguously determine when well-bore operations may recommence after a cement job. The optic-fiber coil is wound around a spool such that there is at least one coil crossing on the spool. | ||||||
| 227 | Enhanced Visualization of Logging Information in Cased Wells Using Dynamic Normalization | US14655721 | 2013-12-18 | US20150346384A1 | 2015-12-03 | Ram Sunder Kalyanaraman; Robert J. Laronga |
| Systems and methods for enhancing local heterogeneity of cased-hole well logging information are provided. An example of such a cased-hole well logging system may include a downhole tool and data processing circuitry. The downhole tool may obtain cased-hole logging information over a depth of a cased wellbore. The data processing circuitry may normalize at least some of the cased-hole logging information over at least a first subsection of the depth and may map visualization indicators to the normalized cased-hole logging information. The mapping of the visualization indicators to the normalized cased-hole logging information may enable an analyst to identify casing and/or annulus material properties not readily apparent using exclusively absolute visualizations of the cased-hole logging information. | ||||||
| 228 | Wellbore Systems with Hydrocarbon Leak Detection Apparatus and Methods | US14278236 | 2014-05-15 | US20150330214A1 | 2015-11-19 | Darin H. Duphorne |
| In one aspect, a wellbore system is disclosed that in one non-limiting embodiment includes a cement section in the wellbore formed to prevent flow of fluids including hydrocarbons through the cement section, a plug disposed uphole of the cement section to provide a space between the cement section and the plug and a sensor in the space for providing measurements relating to a parameter of interest. In one aspect, the parameter of interest may include one or more of presence and extent of a hydrocarbon, presence of moisture; pressure; and temperature. The system may further include a transmitter that transmits measurements from the sensor via a communication line or wirelessly to a receiver for processing the sensor measurements. | ||||||
| 229 | GUIDED WAVE DOWNHOLE FLUID SENSOR | US14271256 | 2014-05-06 | US20150322782A1 | 2015-11-12 | EHSAN KHAJEH; Roger R. Steinsiek |
| Methods, systems, and devices for downhole evaluation using a sensor assembly that includes a sensor plate, wherein a surface of the sensor plate forms a portion of an exterior surface of a downhole tool. Methods may include submerging the surface of the sensor plate in a downhole fluid in a borehole; activating the sensor assembly to generate a guided wave that propagates along the sensor plate, wherein propagation of the guided wave along the sensor plate is dependent upon a parameter of interest of the downhole fluid; and using information from the sensor assembly relating to the propagation of the guided wave along the sensor plate to estimate the parameter of interest. Methods may include isolating an opposing surface of the sensor plate from the downhole fluid. The guided wave may be an interface guided wave or may propagate in the plate between the surface and an opposing surface. | ||||||
| 230 | EMAT acoustic signal measurement using modulated Gaussian wavelet and Hilbert demodulation | US13293325 | 2011-11-10 | US09157312B2 | 2015-10-13 | Jinsong Zhao |
| Casing signals generated by an EMAT in a borehole are processed using at least two orthogonal band-limited filters. The band-limited filters may include Gaussian or Cauchy Wavelet filters. By using the Hilbert transform, an envelope of the filtered signals is determined and amplitudes and arrival times of individual arrivals are estimated. These can be used to estimate casing and cement properties. | ||||||
| 231 | MEASUREMENT OF CEMENT SLURRY PROPERTIES UNDER DOWNHOLE CONDITIONS | US14371898 | 2013-09-06 | US20150240621A1 | 2015-08-27 | Merouane Khammar; Benjamin Iverson; Thomas Singh Sodhi |
| The present invention relates to a method for measuring a cement slurry property, such as static gel strength or yield stress, under at least one downhole condition, and apparatuses and systems for performing the same. In some embodiments, the method includes detecting a downward force exerted by a curing cement slurry under at least one downhole condition within a vessel movable along a vertical axis proportionally to the downward force. A surface substantially nonmovable along the vertical axis is disposed at least partially within the cement slurry. The method also includes determining at least one property of the cement slurry from the detected downward force. | ||||||
| 232 | MEASURING BEHIND CASING HYDRAULIC CONDUCTIVITY BETWEEN RESERVOIR LAYERS | US14182430 | 2014-02-18 | US20150233233A1 | 2015-08-20 | Noor M. Anisur Rahman |
| A measure of the hydraulic conductivity, FC, is obtained to characterize the leaky medium behind well casing between adjacent hydrocarbon producing layers is a subsurface reservoir. The value of FC can be utilized in estimating the rate of flow from a secondary reservoir layer contributing to the total production through the wellbore based on the respective well pressures at a given time. The well pressures are calculated from a model based on the individual properties of and the amounts of fluid produced from these layers. Once there is a reasonable match between the calculated pressures and the measured pressures during a transient test, the parameters that have been used in calculating the model pressures are stored as characteristic parameters of the reservoir system. Such characteristic parameters are utilized in assessing the commercial producibility of the reservoirs. | ||||||
| 233 | Enhanced bandwidth transducer for well integrity measurement | US13713839 | 2012-12-13 | US09105836B2 | 2015-08-11 | Mahesh Matam; Frans Lautzenhiser; Pat Gwin |
| A single critically damped acoustic stack yields a wide frequency range as an acoustic transmitter or as an acoustic transducer having particular use in well integrity determination. The critically damped present acoustic stack utilizes a plurality of stacked acoustic elements such as piezoelectric ceramics that are energized in two manners, providing different center frequencies; each producing a respective center frequency of 100% bandwidth to yield an acoustic stack having a total bandwidth exceeding the bandwidth of an acoustic element or the bandwidth of the plurality of acoustic elements. One manner of energizing is to pulse only one of the acoustic elements. The other manner is to pulse a first acoustic element the pulse a second acoustic element after a delay equal to the amount of time it takes for the first pulse to reach the face of the second acoustic element. The acoustic elements are bonded together and onto a critically damped backing of tungsten. The assembly is retained in a housing that is preferably made of PEEK. The acoustic stack is primarily used in pulse-echo analysis of metal casing wall thickness and cement bond quality detection of wells. | ||||||
| 234 | ACOUSTIC MULTI-MODALITY INVERSION FOR CEMENT INTEGRITY ANALYSIS | US14170427 | 2014-01-31 | US20150219780A1 | 2015-08-06 | Smaine ZEROUG; Bikash K. SINHA; Sandip BOSE; Jiaqi Yang; Ting Lei; Ram Sunder Kalyanaraman |
| Apparatus and method for characterizing a barrier installed in a borehole traversing a formation including locating an acoustic tool with a receiver and a transmitter at a location in the borehole, activating the acoustic tool to form acoustic waveforms, wherein the receiver records the acoustic waveforms, and processing the waveforms to identify barrier parameters as a function of azimuth and depth along the borehole, wherein the waveforms comprise at least two of sonic signals, ultrasonic pulse-echo signals, and ultrasonic pitch-catch signals. | ||||||
| 235 | Method to Estimate Cement Acoustic Wave Speeds from Data Acquired by A Cased Hole Ultrasonic Cement Evaluation Tool | US14612101 | 2015-02-02 | US20150218930A1 | 2015-08-06 | Smaine Zeroug; Jiaqi Yang; Sandip Bose |
| Embodiments of the disclosure may include systems and methods for estimating an acoustic property of an annulus in a cement evaluation system. In one embodiment, a casing arrival signal is acquired at acoustic receivers a cement evaluation tool. A spectral amplitude ratio is calculated based on the casing arrival signal. The spectral amplitude ratio is scanned to detect and identify discontinuities. If discontinuities are detected, the frequency at the discontinuity may be used to estimate a wavespeed of the annulus. If discontinuities are not detected, attenuation dispersions are calculated and estimated, and an estimated wavespeed and parameters are updated until the calculated and estimated attenuation dispersions match. | ||||||
| 236 | VIBRATION CONTROL FOR A CEMENT EVALUATION TOOL | US14134372 | 2013-12-19 | US20150177404A1 | 2015-06-25 | Jahir Pabon |
| Systems and methods for evaluating a cement installation are provided. In one example, the cement may be evaluated using a casing arrival measurement sensor that measures casing arrival signals resulting from firing a signal from a cement bond logging acoustic source. External signals (e.g., signals other than the casing arrival signals) may be attenuated by firing an attenuation firing signal. | ||||||
| 237 | Perforating Packer Casing Evaluation Methods | US14136364 | 2013-12-20 | US20150176392A1 | 2015-06-25 | Pierre-Yves Corre |
| Packers may be inflated within the wellbore to engage and isolate a portion of the wellbore casing. Charges included within the packers may then be fired to perforate the casing. According to certain embodiments, the charges may be located within drains in the packers that can be subsequently employed to induce and measure pressure changes within the casing and surrounding formation. The pressure measurements in turn can be used to determine the integrity and/or permeability of the casing. | ||||||
| 238 | Apparatus and method of forming a plug in a wellbore | US13290219 | 2011-11-07 | US09038740B2 | 2015-05-26 | Gunnar Lende; Hank Rogers |
| A method of forming a plug in a wellbore includes disposing a work string in a wellbore. The work string includes a first tool comprising a port providing fluid communication between an interior space of the first tool to an exterior space to permit placement of a plug in a wellbore. The method includes introducing a first fluid volume via the work string to form a plug in the wellbore, and includes load testing the plug at least in part by applying an axial force on the plug with the work string to determine that the plug is set. | ||||||
| 239 | Detection and quantification of isolation defects in cement | US13277868 | 2011-10-20 | US08919438B2 | 2014-12-30 | Terizhandur S. Ramakrishnan; Nikita Chugunov; Ram Sunder Kalyanaraman |
| A method for evaluating wellbore integrity including introducing a drill to a surface of a casing encompassing an annulus, enclosing the drill in a housing hydraulically isolating the surface, drilling through the casing and into cement surrounding the casing, observing a pressure of the fluid, and using the pressure observation and a drill position to evaluate a presence of a defect and a location of the defect. Apparatus for evaluating wellbore integrity including a probe comprising a drill, wherein the probe is hydraulically isolated from the wellbore, a valve that encompasses the drill, a pressure gauge to measure the pressure of the fluid within the housing, a pressure gauge to measure the pressure in the system outside the housing, and equipment to compare the pressure measurements and the position of the drill and to evaluate a presence and a location of the defect. | ||||||
| 240 | DOWNHOLE FLOW MEASUREMENTS WITH OPTICAL DISTRIBUTED VIBRATION/ACOUSTIC SENSING SYSTEMS | US13896418 | 2013-05-17 | US20140338438A1 | 2014-11-20 | Michael L. FRIPP; Neal G. SKINNER |
| A method of verifying a substance interface location during a cementing operation can include optically measuring vibrations caused by substances flowing across structures distributed along a wellbore, the vibrations being caused at each structure, and the vibrations changing at each structure as the interface displaces across the structure. A method of determining a property of at least one substance flowed in a wellbore can include optically measuring vibrations caused by the substance flowing across structures distributed along a wellbore, the vibrations being caused at each structure, and the structures having different shapes, thereby causing the vibrations at the structures to be different from each other when the substance flows across the differently shaped structures. | ||||||
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