子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | Wellbore perforation tool | EP11151325.5 | 2011-01-18 | EP2354443A2 | 2011-08-10 | Walker, Jerry L.; Hales, John H. |
A wellbore perforation tool (32) is provided. The tool comprises an explosive charge (52), a tool body (50) containing the explosive charge (52), and a flowable material (54) carried with the tool. The flowable material is released by detonation of the explosive charge (52) and, after perforation of the tool body (50) by the explosive charge (52) to form an aperture in the tool body, flows to form at least a partial barrier of the aperture.
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| 182 | BOREHOLE IMAGING AND ORIENTATION OF DOWNHOLE TOOLS | EP08868454.3 | 2008-12-10 | EP2250343A2 | 2010-11-17 | ALMAGUER, James, S. |
| Methods of generating radial survey images of a borehole and methods of orienting downhole operational tools are disclosed. The disclosed techniques are used to generate a radial survey of the borehole in the form of one or more rose-plots and/or a radial image of the borehole and surrounding area that can be used to properly orient downhole operational tools in the desired direction. The tool string (40) includes, from the top to bottom, a telemetry module (37), a non-rotating centralizer (30), a motor module (32), an imaging sonde (30) used to survey the borehole, a rotating centralizer and a downhole operational tool (23, 24, 25, 32, 48). The motor module can be used to rotate the imaging sonde to generate the radial survey and then rotate the downhole operational tool to the desired direction based upon a review of the radial survey. | ||||||
| 183 | Actuating downhole devices in a wellbore | EP09172006.0 | 2009-10-01 | EP2172618A2 | 2010-04-07 | Bonavides, Clovis S.; Crawford, Donald L. |
A downhole tool system includes a first downhole tool and a second downhole tool. The first downhole tool includes a first controller operable to receive an actuation signal including a tone. The first controller actuates the first downhole tool if the tone is a first specified frequency and changes the first downhole tool to communicate the actuation signal to the second downhole tool if first downhole tool is not actuated in response to the actuation signal. A second downhole tool includes a second controller operable to receive the actuation signal. The second controller actuates the second downhole tool if the tone is a second specified frequency. The second frequency is different from the first frequency.
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| 184 | METHOD AND APPARATUS FOR PERFORATING AND ISOLATING PERFORATIONS IN A WELLBORE | EP06803327.3 | 2006-09-12 | EP2069606A2 | 2009-06-17 | FREYER, Rune; CHALKER, Christopher J. |
| A method and apparatus for perforating and isolating perforations in a wellbore. A perforating and isolating apparatus includes at least one packer having a swellable seal material, and a perforating assembly attached to the packer. A method of perforating and isolating perforations in a subterranean wellbore includes the steps of: positioning an apparatus in the wellbore, the apparatus including at least one packer having a swellable seal material, and a perforating assembly attached to the packer; isolating at least one existing perforation by swelling the seal material; and forming at least one new perforation by actuating the perforating assembly. | ||||||
| 185 | Apparatus and method for sampling an earth formation through a cased borehole | EP97301090.3 | 1997-02-20 | EP0791723A1 | 1997-08-27 | Kurkjian, Andrew; MacDougall, Thomas; LaDue, Duane; Jaroska, Miles; Flores, Aaron |
An apparatus (12) is disclosed for perforating, testing and resealing casing (11) in an earth formation borehole (10). The apparatus is moveable through the casing. The apparatus can also be mounted on a wireline, on tubing (13) or on both. A perforating device is mounted in the apparatus for producing a perforation in the casing. The perforating device contains a flexible drilling means (18,19) that enables the drilling of perforations in the casing of lengths greater than the diameter of the borehole. The apparatus will usually contain components for hydraulic testing and sampling from the formation behind the casing. Also mounted in the apparatus is a device for plugging and resealing (25,26) the perforation with a solid plug. |
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| 186 | Earth well drilling apparatus | EP86309988.3 | 1986-12-19 | EP0227456B1 | 1992-08-19 | Rabb, David Tomlinson; Anderson, Randall R.; Dickinson, Eric W.; Dykstra, Herman; Mackey, Chales S.; Odgers, Irving L.; Cummings, Richard E.; Larson, Merle D. |
| 187 | Casing valve | EP90311621.8 | 1990-10-23 | EP0427422A3 | 1991-10-23 | Brandell, John T.; Szarka, David D.; Sullaway, Bob L. |
A casing valve for use in a well comprises an outer housing (50) having a longitudinal passageway (52) defined therethrough and having a housing wall (54) with a housing communication port (56) defined through said housing wall, said housing including a first disintegratable plug (96) initially blocking said housing communication port; and a sliding sleeve (66) slidably disposed in said longitudinal passageway, said sleeve having a longitudinal sleeve bore (90) defined therethrough and having a sleeve wall (92) with a sleeve communication port (94) defined through said sleeve wall, said sleeve including a second disintegratable plug (98) initially blocking said sleeve communication port, said sleeve being selectively movable relative to said housing between a first position wherein said housing communication port and said sleeve communication port are out of registry with each other and a second position wherein said ports are in registry with each other. |
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| 188 | Hydrocarbon Filled Fracture Formation Testing Before Shale Fracturing | US15576832 | 2016-06-02 | US20180306029A1 | 2018-10-25 | Frederic Joseph Santarelli |
| A method of determining the presence of hydrocarbon-filled natural fractures with sufficient lateral extension in a well in which stimulation by hydraulic fracturing is intended to be carried out. Following perforation of an interval, a fluid is pumped into the well and a pressure response trace is collected. The fluid is pumped at a rate which is lower than the pump rate for the intended frac job and the data collection rate is higher than the data collection rate for the intended frac job. Characteristic elements are identified in the pressure response trace whose value and combination indicate the presence or absence of hydrocarbon-filled natural fractures with sufficient lateral extension in the interval. | ||||||
| 189 | Methods for processing production formations by helicoid perforation | US15189156 | 2016-06-22 | US10094204B2 | 2018-10-09 | Oleg Anatolevich Bobylev |
| The invention belongs to the oil industry and can be used for enhanced oil recovery by formations under complicated mining and geological conditions. The method of repeated completion of the production formations by helicoid perforation includes perforation, which is performed by moving the perforator along well axis and simultaneously rotating it around its axis with making perforation channels, provided that the speeds of movement and rotation of the perforator are selected based on the condition that the perforation obtained as a result is a helicoid with creation an empty space in the processed formation. | ||||||
| 190 | CREATING RADIAL SLOTS IN A SUBTERRANEAN FORMATION | US15522968 | 2015-10-30 | US20180272467A1 | 2018-09-27 | Bernard MONTARON; Douglas PIPCHUK |
| A laser cutting apparatus conveyable within a casing lining at least a portion of a wellbore that extends into a subterranean formation. The laser cutting apparatus includes a housing, a deflector, a motor, a sensor, and a processing device. The deflector rotates relative to the housing to direct a laser beam to form a radial slot extending through the casing and into the subterranean formation. The motor rotates the deflector. The sensor generates information related to depth of the radial slot in real-time as the radial slot is formed by the laser beam. The processing device receives the information generated by the sensor and causes the motor to rotate the deflector based on the received information. | ||||||
| 191 | Solids Control Methods, Apparatus, and Systems | US15516553 | 2014-11-05 | US20180266231A1 | 2018-09-20 | Henry Eugene ROGERS; Michael MALAVE |
| A weir assembly system comprises an insert dimensioned to be inserted into a section of a wellbore and a plurality of weirs spaced within the insert so as to increase the separation of solids from fluid within the section of the wellbore when the fluid is flowing through the wellbore. The plurality of weirs may be oriented to create a tortuous fluid flow path, such that a flow opening of a first weir causes solids to deposit at a second weir without obstructing a flow opening of the second weir. Additional apparatus, methods, and systems are disclosed. | ||||||
| 192 | Method of completing and producing long lateral wellbores | US15485470 | 2017-04-12 | US10077643B2 | 2018-09-18 | Lloyd Murray Dallas |
| Long lateral wellbores are prepared for the production of hydrocarbons by preparing only a portion of the wellbore for production at a time, starting at a remote end of the long lateral wellbore. The prepared production section is produced until production becomes uneconomic before a further production section is prepared and produced. | ||||||
| 193 | Completion and Productions Apparatus and Methods Employing Pressure and/or Temperature Tracers | US15906406 | 2018-02-27 | US20180252091A1 | 2018-09-06 | Oscar A. Bustos; Shashank Raizada; Christopher James; Tyler Thomason; Shawn Cox; Leonardo Maschio; Randy L. Rose |
| A frac plug includes a body having an outer surface, a first pocket in the outer surface, and a second pocket in the outer surface. In addition, the frac plug includes a first sensor removably disposed in the first pocket. The first sensor is configured to measure and record a plurality of pressures. The frac plug also includes a second sensor removably disposed in the second pocket. The second sensor is configured to measure and record a plurality of pressures. Further, the frac plug includes a first cap releasably coupled to the body and closing the first pocket. Moreover, the frac plug includes a second cap releasably coupled to the body and closing the second pocket. The first cap includes a port and the second cap includes a port. | ||||||
| 194 | THROUGH TUBING P&A WITH TWO-MATERIAL PLUGS | US15717352 | 2017-09-27 | US20180216437A1 | 2018-08-02 | Randall S. SHAFER |
| Methods of plugging a hydrocarbon well by a through-tubing technique wherein the tubing is left in place, and only very short (<5 m) sections are cut, milled, perforated, ruptured and expanded, or combinations thereof. A blocking device is sent downhole if needed to block a bottom of the plug section, and resin dropped onto the blocking device to make a first plug, then cement is deployed onto said first plug to form a second plug. Therefore, the final interval is plugged with a two material binary plug. Once completed, and both primary and secondary barriers are in place, the well can be closed and the Christmas tree removed. A rock-to-rock plug can be set by removing or partially removing the tubular and the outer casing, or just inner casing/tubulars can be removed if the exterior cement and casing are of sufficient quality. | ||||||
| 195 | Composition including a viscosifier and a hydrophobically-modified polymer that includes a nitrogen-containing repeating unit for treatment of subterranean formations | US15517501 | 2014-11-06 | US10035948B2 | 2018-07-31 | Bradley J. Sparks; Loan K. Vo; Jimmie Dean Weaver, Jr.; Christopher Parton; Jessica L. Heeter |
| Various embodiments disclosed related to compositions and methods of using the same for treating subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in a subterranean formation a composition that includes a viscosifier and that also includes a hydrophobically-modified polymer including at least one nitrogen-containing repeating unit. | ||||||
| 196 | Fluid plugs as downhole sealing devices and systems and methods including the same | US14437161 | 2013-11-18 | US10024131B2 | 2018-07-17 | Randy C. Tolman; Timothy G. Benish; Geoffrey Steiner |
| Fluid plugs as downhole sealing devices and methods include providing a stimulating fluid to a casing conduit that is defined by the production casing to stimulate a portion of a subterranean formation within which the production casing extends. The methods further may include providing a sealing fluid to the casing conduit, providing a sealing device to the casing conduit, and flowing the sealing fluid and the sealing device to a perforated section of the production casing. The methods further may include locating the sealing device on a perforation, generating a fluid plug within the perforated section of the production casing by increasing a viscosity of the sealing fluid, and retaining the sealing device proximate the perforation with the fluid plug. | ||||||
| 197 | Compositions And Methods For Controlled Break Of Fluid-Loss Barriers Post-Perforation | US15843614 | 2017-12-15 | US20180171750A1 | 2018-06-21 | Michael James Fuller; David Reuel Underdown; Andreea Madalina Tatulescu; Rodney Joseph Wetzel, JR.; Kenyon James Blake |
| Embodiments of the disclosure are materials, methods, and tools to make and break fluid loss control barriers within the perforations of a wellbore on-demand. Tools include heat emitting tools, magnetic tools, acoustic tools, gamma ray tools, and vacuum tools. | ||||||
| 198 | Simulating downhole flow through a perforation | US15008068 | 2016-01-27 | US09995136B2 | 2018-06-12 | James E. Brooks; Dennis Haggerty |
| A perforation test target is provided. The perforation test target includes a metal plate and a core sample adhered to the metal plate at one end. The perforation test target further including a first sleeve adhered to the core sample, where a flow impedance of each of a plurality of portions of the first sleeve is based on a predetermined impedance map. | ||||||
| 199 | A Downhole Pressure Measuring Tool With A High Sampling Rate | US15574695 | 2016-06-02 | US20180135395A1 | 2018-05-17 | Frederic Joseph Santarelli |
| A dynamic monitoring system for dynamically monitoring injection operations on wells by determining the extent of fracturing using downhole pressure measurements. The system comprises a downhole pressure gauge, means to transmit data from the downhole pressure gauge to surface and a surface data acquisition unit wherein, on inducing a pressure change in a wellbore by an injection operation, the downhole pressure gauge records a pressure trace as data, the data is transmitted to surface at a first sampling frequency, the data is stored in the surface data acquisition unit and fracture length is calculated from the stored data to indicate extent of fracturing. Sampling frequencies are outside the known operating ranges. | ||||||
| 200 | Autonomous Downhole Conveyance Systems and Methods Using Adaptable Perforation Sealing Devices | US15811209 | 2017-11-13 | US20180135381A1 | 2018-05-17 | Randy C Tolman; Timothy G. Benish |
| Autonomously conveyable and actuatable wellbore completion tool assemblies and methods for using the same, comprising: an onboard controller and location sensing device, a plurality of adaptable perforation sealing devices comprising a primary sealing portion and at least one secondary sealing portion extending radially outward from the primary sealing portion to form a secondary seal in the perforation; an autonomously actuatable transport member for supporting the plurality of adaptable sealing devices during conveyance of the tool assembly within the wellbore, and an on-board controller configured to send an actuation signal to actuate at least release of the plurality of adaptable perforation sealing devices from the transport member, wherein the tool assembly comprises a friable material and self-destructs within the wellbore in response to a signal from the on-board controller that affects self-destruction. | ||||||
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