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序号	专利名	申请号	申请日	公开（公告）号	公开（公告）日	发明人
61	METHODS AND APPARATUS FOR DETERMINING STIMULATED VOLUME OF OIL AND GAS RESERVOIRS	US14375088	2013-01-28	US20150003199A1	2015-01-01	Bernard Widrow
The invention relates to methods and apparatuses for a new signal processing method for substantial noise reduction with the goal of making small microquakes detectable and localizable, giving more data points and detail regarding fracking geometry. According to some aspects, the invention provides a fully integrated system including a novel self-focusing adaptive beamformer.
62	Lag calculation with caving correction in open hole	US13076014	2011-03-30	US08775086B2	2014-07-08	Gabriel Frunza
A gas analyzer system that can detect atmospheric air gasses in drilling mud is used to calculate an actual lag time in a well. The calculated lag time and a theoretical lag time may be compared to estimate a caving percentage in an open hole section of the well.
63	FORMATION VOLUMETRIC EVALUATION USING NORMALIZED DIFFERENTIAL DATA	US13837409	2013-03-15	US20130338926A1	2013-12-19	Kais Gzara; Vikas Jain; Alan Patrick Hibler
A method for determining volumetric data for fluid within a geological formation is provided. The method includes collecting first and second dataset snapshots of the geological formation based upon measurements from the borehole at respective different first and second times and generating a differential dataset based upon the first and second dataset snapshots. Multiple points are determined within the differential dataset, including a first point representing a first displaced fluid, a second point representing a second displaced fluid, and an injected fluid point that corresponds to properties of the injected fluid. A further third point is determined based on at least one other property of the displaced fluid, and a volumetric composition of the displaced fluids is determined based upon the differential dataset, the first point, and second point, and third point.
64	METHODS AND SYSTEMS FOR DRILLING	US13649374	2012-10-11	US20130277111A1	2013-10-24	David Alston EDBURY; Jose Victor GUERRERO; Duncan Charles MACDONALD; James Bryon ROGERS; Donald Ray SITTON
A method of automatically placing a drill bit used to form an opening in a subsurface formation on a bottom of the opening being formed comprises a) increasing a flow rate in a drill string to a target flow; b) controlling a flow rate of fluid into the drill string to be substantially the same as a flowrate of fluid out of the opening; c) allowing a fluid pressure to reach a relatively steady state; and d) automatically moving the drill bit toward the bottom of the opening at a selected rate of advance until an increase in measured differential pressure indicates that the drill bit is at the bottom of the opening.
65	Methods and systems for drilling	US13649482	2012-10-11	US08561720B2	2013-10-22	David Alston Edbury; Jose Victor Guerrero; Duncan Charles MacDonald; James Bryon Rogers; Donald Ray Sitton
A method of steering a drill bit to form an opening in a subsurface formation, comprises a) determining a distance from design of a well, and b) determining an angle offset from design of the well wherein angle offset from design is the difference between the inclination and azimuth of the hole and the inclination and azimuth of plan, c) wherein at least one distance from design and at least one angle offset from design are determined in real time based, at least in part, on a position of the hole at the last survey, a position at a projected current location of the bit, and a projected position of the bit.
66	METHODS AND SYSTEMS FOR DRILLING	US13649482	2012-10-11	US20130032401A1	2013-02-07	David Alston EDBURY; Jose Victor GUERRERO; Duncan Charles MACDONALD; James Bryon ROGERS; Donald Ray SITTON
A method of steering a drill bit to form an opening in a subsurface formation, comprises a) determining a distance from design of a well, and b) determining an angle offset from design of the well wherein angle offset from design is the difference between the inclination and azimuth of the hole and the inclination and azimuth of plan, c) wherein at least one distance from design and at least one angle offset from design are determined in real time based, at least in part, on a position of the hole at the last survey, a position at a projected current location of the bit, and a projected position of the bit.
67	Lag Calculation with Caving Correction in Open Hole	US13076014	2011-03-30	US20120253677A1	2012-10-04	Gabriel Frunza
A gas analyzer system that can detect atmospheric air gasses in drilling mud is used to calculate an actual lag time in a well. The calculated lag time and a theoretical lag time may be compared to estimate a caving percentage in an open hole section of the well.
68	Method for determining borehole or cavity configuration through inert gas interface	US677699	1984-12-03	US4620439A	1986-11-04	Donald Faul; Paul P. Broussard; Donald W. Granger
A method for determining the erosion of a borehole or cavity by providing a source of liquid inert gas, preferably nitrogen, placing the inert gas in a storage tank, and suspending the storage tank so that one may determine the actual weight of the nitrogen as it is withdrawn from the tank in liquid state. There is further provided hydraulic elements for lifting or lowering the storage tanks suspended from a weight cell as a tank is placed into use or non-use. Further, the liquid nitrogen is pumped from the storage tank with the use of a reciprocating pump, and converted into gaseous nitrogen (in the state of 100.degree. F.) and is injected into a borehole or the like. The nitrogen gas is then allowed to flow under a certain pressure down the borehole, and due to the properties of nitrogen gas, the nitrogen interfaces at a horizontal plane as it moves down the borehole. Following completion of the nitrogen injection, nitrogen gas could be maintained within the borehole at a constant pressure and any upward movement of the interface over an extended and defined period of time, could determine location and the amount of leakage occurring within the borehole, casing seat or pipe. A flowmeter may be used to measure the amount of inert gas injected.
69	Method for determining borehole or cavity configuration through inert gas interface	US390321	1982-06-21	US4455869A	1984-06-26	Paul P. Broussard; Donald Faul; Donald W. Granger
A method for determining the erosion of a borehole or cavity by providing a source of liquid inert gas, preferably nitrogen, placing the inert gas in a storage tank, and suspending the storage tank so that one may determine the actual weight of the nitrogen as it is withdrawn from the tank in liquid state. There is further provided hydraulic means for lifting or lowering the storage tanks suspended from a weight cell as a tank is placed into use or non-use. Further, the liquid nitrogen is pumped from the storage tank with the use of a reciprocating pump, and converted into gaseous nitrogen (in the state of 100.degree. F.,) and is injected into a borehole or the like. The nitrogen gas is then allowed to flow under a certain pressure down the borehole, and due to the properties of nitrogen gas, the nitrogen interfaces at a horizontal plane as it moves down the borehole.
70	Method and apparatus for measuring the interior dimensions of a hollow body	US830210	1977-09-02	US4161715A	1979-07-17	Lawrence A. Harris
An apparatus for measuring the interior dimensions of the walls of a hollow body. The apparatus is insertable into a restricted opening of the hollow body and includes means for transmitting a beam of electromagnetic energy toward an interior wall of the hollow body. When the electromagnetic energy illuminates the interior wall, acoustic waves are radiated back to the apparatus. The apparatus detects the acoustic waves and measures the elapsed time between transmission of the electromagnetic energy and detection of the acoustic waves. From elapsed time measurements the dimensions of the interior walls are obtained.
71	Methods of determining well characteristics	US837229	1977-09-27	US4123937A	1978-11-07	Lloyd G. Alexander
A method of determining the volume of gas in a well below the wellhead includes measuring the gas flow rate in the well annulus, closing the wellhead and measuring the change in pressure with time, and calculating the volume from the recorded data. A further method includes determining the change of pressure with time with the wellhead closed, venting the well through a calibrated orifice and measuring pressure changes with time for a short interval of time, and calculating from the recorded data the flow rate through the orifice, the annuluar gas volume and the annular gas rate. Pump rates and fluid rates can also be determined. A reverse technique using injection is also disclosed.
72	Well surveying instrument and method	US3614891D	1969-03-17	US3614891A	1971-10-26	NOLTE ERNST P
A SURVEYING INSTRUMENT FOR INVESTIGATING THE CHARACTER OF AN UNDERGROUND CAVITY PENETRATED BY A BOREHOLE, INCLUDES AN ELONGATED INSTRUMENT HOUSING AND A LOWER SECTION CONTAINING MEANS TO GENERATE AND RECEIVE ENERGY, SUCH AS A SURVEYING TRANSCEIVER. THE LOWER SECTION IS PIVOTALLY AND ROTATABLY MOVABLE ABOUT THE LOWER END OF THE HOUSING ENABLING THE ENTIRE SURFACE OF THE CAVITY TO BE SURVEYED.
73	Determination of cavity size in earth formations penetrated by a borehole	US11653261	1961-06-12	US3059469A	1962-10-23	CALDWELL JOSEPH A

74	Method of measuring borehole capacity	US70113957	1957-12-06	US3021425A	1962-02-13	WALDROOP DEE B

75	Method of volumetric determination of well bores and the like	US86232759	1959-12-28	US3020952A	1962-02-13	SULLIVAN DANIEL W

76	Apparatus for measuring the volume of a borehole	US31578252	1952-10-20	US2716340A	1955-08-30	THARP NANCE WILLIAM; LEONARD RABE CHARLES

77	Method of measuring the cross sectional area of boreholes	US10090749	1949-06-23	US2649163A	1953-08-18	ATKINS JR EARLE R

78	Method of determining well volumes	US67621633	1933-06-16	US2010755A	1935-08-06	FOLEY LYNDON L

79	DOWNHOLE PLUG AND ABANDONMENT SYSTEM	EP17162047.9	2017-03-21	EP3379021A1	2018-09-26	HAZEL, Paul
The present invention relates to a downhole plug and abandonment system (100) comprising a well tubular structure (1) having an inside (2) and a wall (3) and being arranged in a borehole (4), a first plug (5) arranged in the well tubular structure for sealing off a lower part (6) of the well tubular structure, a second plug (7) arranged in the well tubular structure at a distance (d) and above the first plug isolating a confined space (8) having a space pressure between the first plug and the second plug, wherein an abandonment device (10) is arranged in the confined space, the abandonment device comprising: a unit (11) configured to increase the space pressure, a sensor (12) configured to measure a temperature and/or a pressure in the confined space, and a device communication module (14) configured to receive an input from the sensor and to communicate signals from the abandonment device. Furthermore, the present invention relates to a downhole plug and abandonment method.
80	LOCALLY LUMPED EQUATION OF STATE FLUID CHARACTERIZATION IN RESERVOIR SIMULATION	EP14901339	2014-09-03	EP3189207A4	2018-07-11	FLEMING GRAHAM CHRISTPOHER; WONG TERRY WAYNE
In some embodiments, a method for locally lumped equation of state fluid characterization can include determining a set of components for the material balance calculations for a plurality of grid blocks of a reservoir. The plurality of grid blocks can experience different recovery methods between them. Lumping schemes can be determined for the plurality of grid blocks. Phase behavior calculations can be performed on the plurality of grid blocks, wherein different lumping schemes can be used across the plurality of grid blocks.

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