Patents by Inventor Min-Yi Chen
Min-Yi Chen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20070170924Abstract: Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.Type: ApplicationFiled: September 9, 2005Publication date: July 26, 2007Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Brian Clark, Anthony Collins, Jeffrey Tarvin
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Patent number: 7243718Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: GrantFiled: June 18, 2004Date of Patent: July 17, 2007Assignee: Schlumberger Technology CorporationInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael G. Supp, Jose Navarro
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Patent number: 7233150Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: GrantFiled: June 18, 2004Date of Patent: June 19, 2007Assignee: Schlumberger Technology CorporationInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael G. Supp, Jose Navarro
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Publication number: 20070057674Abstract: Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.Type: ApplicationFiled: September 9, 2005Publication date: March 15, 2007Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Brian Clark, Anthony Collins, Jeffrey Tarvin
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Publication number: 20060125474Abstract: Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.Type: ApplicationFiled: September 9, 2005Publication date: June 15, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Brian Clark, Anthony Collins, Jeffrey Tarvin
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Publication number: 20060089804Abstract: Logging-while-drilling apparatus and methodologies for measuring streaming potential in an earth formation are provided. The apparatus and methodologies can be utilized to find information relevant to the drilling operations. In particular, since the streaming potential measurement relates directly to fluid flow, the streaming potential measurements can be used to track flow of fluids in the formation. In turn, this information may be used to find information relevant to the drilling operations, such as under-balanced drilling conditions, abnormal formation pressures, open fractures, the permeability of the formation, and formation pressure.Type: ApplicationFiled: September 9, 2005Publication date: April 27, 2006Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Brian Clark, Anthony Collins, Jeffrey Tarvin
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Patent number: 7000697Abstract: A system that is usable with a subterranean well that has a casing includes an apparatus that is associated with production of fluid from the well and is located downhole in the well in a passageway of the casing. The system also includes a sensor that is located downhole near the apparatus in the passageway and is adapted to measure a characteristic of the formation fluids and rock located outside of the casing.Type: GrantFiled: November 19, 2001Date of Patent: February 21, 2006Assignee: Schlumberger Technology CorporationInventors: Peter A. Goode, Rod Nelson, David Rossi, Terizhandur S. Ramakrishnan, Min-Yi Chen
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Wireline apparatus for measuring steaming potentials and determining earth formation characteristics
Patent number: 6978672Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: GrantFiled: June 18, 2004Date of Patent: December 27, 2005Assignee: Schlumberger Technology CorporationInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael G. Supp, Jose Navarro -
Publication number: 20050280419Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro
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Publication number: 20050279161Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro
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Publication number: 20050279497Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro
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Publication number: 20050279495Abstract: Earth formations are characterized by using an array of electrodes which can measure streaming potentials in the formation, and by interpreting the data obtained by the electrodes. The electrodes are placed on a wireline tool, a LWD tool, or in a fixed manner about a completed wellbore. The measured streaming potentials are generated by drilling with an overbearing pressure, slitting the mudcake in a borehole, acid injection, or any of various other manners which causes fluid movement. The data obtained is interpreted to locate fractures, measure formation permeability, estimate formation pressure, monitor drilling fluid loss, detect abnormal pressure, etc. Particularly, a streaming potential voltage transient having a double peak profile signifies the presence of a formation fracture.Type: ApplicationFiled: June 18, 2004Publication date: December 22, 2005Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION, Incorporated in the State of TexasInventors: Min-Yi Chen, Bhavani Raghuraman, Ian Bryant, Michael Supp, Jose Navarro
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Publication number: 20030094282Abstract: A system that is usable with a subterranean well that has a casing includes an apparatus that is associated with production of fluid from the well and is located downhole in the well in a passageway of the casing. The system also includes a sensor that is located downhole near the apparatus in the passageway and is adapted to measure a characteristic of the formation fluids and rock located outside of the casing.Type: ApplicationFiled: November 19, 2001Publication date: May 22, 2003Inventors: Peter A. Goode, Rod Nelson, David Rossi, Terizhandur S. Ramakrishnan, Min-Yi Chen
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Publication number: 20020088618Abstract: A system for reservoir control. The system allows segregated production of fluids, e.g. water and oil, to control the fluid-fluid interface. Downhole sensors are utilized in providing data about the location of the interface. This permits the proactive monitoring and control of the interface prior to unwanted intermingling of fluids, e.g. oil and water, during production.Type: ApplicationFiled: November 30, 2000Publication date: July 11, 2002Inventors: Terizhandur S. Ramakrishnan, Brindesh Dhruva, Raj Kumar Michael Thambynayagam, Min-Yi Chen, Peter A. Goode, Rod F. Nelson
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Patent number: 6415864Abstract: A system for reservoir control. The system allows segregated production of fluids, e.g. water and oil, to control the fluid-fluid interface. Downhole sensors are utilized in providing data about the location of the interface. This permits the proactive monitoring and control of the interface prior to unwanted intermingling of fluids, e.g. oil and water, during production.Type: GrantFiled: November 30, 2000Date of Patent: July 9, 2002Assignee: Schlumberger Technology CorporationInventors: Terizhandur S. Ramakrishnan, Brindesh Dhruva, Raj Kumar Michael Thambynayagam, Min-Yi Chen, Peter A. Goode, Rod F. Nelson
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Patent number: 6191588Abstract: The borehole imaging apparatus of the present invention includes a tool having an array of voltage electrode buttons mounted on a non-conductive pad. A current source and a current return are preferably located on the non-conductive pads at opposite ends thereof. The locations of the current source and return are designed to force a current to flow in the formation parallel to the pad face and non-parallel to the formation boundary layers. According to a method of the invention, the voltage difference between a pair of buttons in the array is proportional to the resistivity of the formation bed adjacent to the buttons. The ratio of voltage differences between two nearby pairs of electrode buttons provides a quantitative measurement of the ratio of shallow resistivity. The resolution of the image produced by the new tool is determined only by the spacing of the buttons. The tool according to the invention produces much better images than the prior art tools when used in OBM wells.Type: GrantFiled: July 15, 1998Date of Patent: February 20, 2001Assignee: Schlumberger Technology CorporationInventor: Min-Yi Chen
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Patent number: 6182013Abstract: Methods for locating an oil-water interface in a petroleum reservoir include taking resistivity and pressure measurements over time and interpreting the measurements. The apparatus of the invention includes sensors preferably arranged as distributed arrays. According to a first method, resistivity and pressure measurements are acquired simultaneously during a fall-off test. Resistivity measurements are used to estimate the radius of the water flood front around the injector well based on known local characteristics. The flood front radius and fall-off pressure measurements are used to estimate the mobility ratio. According to a second method, resistivity and pressure measurements are acquired at a variety of times. Prior knowledge about reservoir parameters is quantified in a probability density function (pdf). Applying Bayes' Theorem, prior pdfs are combined with measurement results to obtain posterior pdfs which quantify the accuracy of additional information.Type: GrantFiled: July 23, 1999Date of Patent: January 30, 2001Assignee: Schlumberger Technology CorporationInventors: Alberto Malinverno, David J. Rossi, Metin Karakas, Brian Spies, Carlos Torres-Verdin, Ian Bryant, Min-Yi Chen
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Patent number: 5038378Abstract: A method and apparatus are described for removing noise by smoothing fine resistivity measurements made with a tool from inside a borehole penetrating an earth formation. Pixel values representative of the resistivity measurements are examined to determine the directions of features in the measurements and a smoothing of the pixel values is then made along the measured directions. The orientations of the features are obtained with a similarlity investigation of pixels in sub-array windows along parallel lines whose slope is varied. Optimal slope lines along which the pixel values in a window best resemble each other are determined as the direction of the features. Smoothing is done along the optimal slope lines. Substantially noise free pixel measurements are obtained to enable subsequent automatic signal processing such as the detection of edges between layers of different resistivity. The edges are recorded with an emphasis on a visual display for enhanced visual analysis.Type: GrantFiled: October 3, 1988Date of Patent: August 6, 1991Assignee: Schlumberger Technology CorporationInventor: Min-Yi Chen
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Patent number: 5012193Abstract: A filter removes certain noise-induced artifacts from a two-dimensional image of a bore-hole wall, this image being formed by signals from a two-dimensional array of staggered electrodes pulled along the bore-hole wall. The noise artifacts are due to a type of noise which varies as a function of depth of the array, but which is substantially the same at all electrodes at any given time. The artifacts appear in the image in the form of a "footprint" of the electrode array, as an unintended result of a depth-adjustment process in which the original frames of samples of the signals at the electrodes of the staggered array, all taken essentially at the same time, are later resampled to produce frames of samples each corresponding to the same depth in said bore-hole. The filter makes use of the fact that the configuration of the artifact in the image is known, and that the true signal values do not change much between azimuthally adjacent electrodes.Type: GrantFiled: November 1, 1989Date of Patent: April 30, 1991Assignee: Schlumberger Technology Corp.Inventor: Min-Yi Chen
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Patent number: 5008625Abstract: Method and apparatus for obtaining fine detail of spontaneous potential (SP) along a bore-hole wall in the earth, in connection with exploration for petrochemical deposits. A laterally-extending array of SP-sensing electrodes is mounted on an insulating pad, each slightly below the pad surface, and the pad is moved along and against the bore-hole wall while the SP's at the electronics are sampled and sent to up-hole electrodes for processing. The processed electrode samples are used to form a two-dimensional visually-observable image of the segment of the bore-hole wall swept over by the electrodes on the pad.Type: GrantFiled: November 1, 1989Date of Patent: April 16, 1991Assignee: Schlumberger Technology CorporationInventor: Min-Yi Chen