公开(公告)号：US10386514B2

公开(公告)日：2019-08-20

申请号：US14808785

申请日：2015-07-24

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Stephen K. Chiu

IPC: G06F19/00 ,  G01V1/30

Abstract: Method for characterizing a subterranean formation includes: obtaining azimuth-dependent observed travel-times from measured seismic data; inverting observed travel-times to calculate a fracture attribute selected from the group consisting of: magnitude and orientation; identifying presence of fracture based on calculated fracture magnitude; identifying fracture direction based on calculated fracture orientation; calculating predicted travel-times; calculating differences or residual errors between observed travel-times and predicted travel-times; identifying potential fault locations based on residual errors; inverting fracture magnitude and orientation using travel-time differences between a shallower horizon to a deeper horizon of interest to minimize overburden artifacts.

公开(公告)号：US10385654B2

公开(公告)日：2019-08-20

申请号：US15933819

申请日：2018-03-23

Applicant: CONOCOPHILLIPS COMPANY

Inventor： John Gibb

IPC: E21B33/13 ,  E21B33/12 ,  E21B36/02 ,  E21B36/04 ,  E21B41/00 ,  E21B36/00

Abstract: A system and method for sealing a multilateral junction in an oil well is described. Molten material, such as a eutectic or non-eutectic alloy, flows into the junction area and forms a durable seal upon cooling. An expanding alloy may be utilized, which expands upon solidification and which has a melting temperature that is higher than the maximum anticipated well temperature. The alloy is placed within a cavity in the well and held at a temperature above the melting point of the alloy, after which the alloy is cooled down to the ambient well temperature and solidifies and expands within the cavity.

公开(公告)号：US20190243019A1

公开(公告)日：2019-08-08

申请号：US16268852

申请日：2019-02-06

Applicant: ConocoPhillips Company

Inventor： Thomas J. WHEELER ,  Jane W. MUTORU ,  Robert G. KEYS ,  Dana M. JURICK ,  Mark J. FISSELL

IPC: G01V1/30 ,  G01V1/34

CPC classification number: G01V1/308 ,  G01V1/34 ,  G01V2210/6122 ,  G01V2210/646

Abstract: A method of characterizing a subterranean formation using a plurality of seismic acquisitions includes obtaining a first seismic acquisition of the subterranean formation, wherein the first seismic acquisition is a baseline survey. Injecting a gas fluid into the subterranean formation, wherein the gas fluid at least partially fills a portion of a fracture network of the subterranean formation. Obtaining a second seismic acquisition of the subterranean formation. Calculating a time-lapse difference in the plurality of seismic acquisitions.

公开(公告)号：US10370949B2

公开(公告)日：2019-08-06

申请号：US15274235

申请日：2016-09-23

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Sergei A. Filatyev ,  Pradeep Ananth Govind ,  Thomas J. Wheeler

IPC: E21B43/24 ,  E21B36/00 ,  E21B36/04 ,  E21B43/17 ,  E21B43/30

Abstract: The present disclosure relates to a particularly effective well configuration that can be used for SAGD and other steam based oil recovery methods. Fishbone multilateral wells are combined with SAGD, effectively expanding steam coverage, but the fishbones are preheated to mitigate plugging problems, with e.g., resistive heating, EM heating or chemical heating.

公开(公告)号：US20190211665A1

公开(公告)日：2019-07-11

申请号：US16240429

申请日：2019-01-04

Applicant: ConocoPhillips Company

Inventor： Yang Zha ,  Son V. Pham

IPC: E21B44/08 ,  E21B28/00

CPC classification number: E21B44/08 ,  E21B28/00

Abstract: A stick-slip vibration mitigation system and a method of using the system are provided. The system includes a sensor, a processor, a non-transitory storage medium, and a controller. The system is operable to be used with a drill-string in a wellbore during a drilling process to mitigate stick-slip vibration of the drill-string.

公开(公告)号：US10267939B2

公开(公告)日：2019-04-23

申请号：US15276015

申请日：2016-09-26

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Peter M. Eick ,  Joel D. Brewer ,  Charles Clinton Mosher

IPC: G01V1/38 ,  G01V1/36 ,  G01V1/30 ,  G01V1/34

Abstract: Disclosed are methods of marine 3D seismic data acquisition that do not require compensation for winds and currents.

公开(公告)号：US10267009B2

公开(公告)日：2019-04-23

申请号：US14596343

申请日：2015-01-14

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Ravi P. Aurora ,  Mike B. Winfree ,  Jean-Christian M. Haffner

IPC: E02B17/00 ,  E02B17/02 ,  E02D23/08 ,  E02D27/52 ,  E02D27/22 ,  E21B41/00 ,  E21B7/12 ,  E02D7/28

Abstract: A method of forming a mudline cellar includes positioning a mudline cellar forming member on a seafloor surface. The mudline cellar forming member includes an outer surface and an inner surface that defines an inner cavity. The method further includes driving the mudline cellar forming member into the seafloor surface, and excavating the inner cavity of the mudline forming member to establish the mudline cellar.

公开(公告)号：US10260288B2

公开(公告)日：2019-04-16

申请号：US14325589

申请日：2014-07-08

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Randall S. Shafer ,  Gordon T. Poss

IPC: E21B33/064 ,  E21B33/076 ,  E21B34/04 ,  E21B33/038 ,  E21B33/06 ,  E21B7/12 ,  E21B43/01

Abstract: Systems and methods contain fluids discharged from a subsea well or at the surface by capping the well blowout with a pre-positioned capping device. The capping device includes at least one blind shear ram and is separate from a blowout preventer. The blowout preventer may operate to control well events up to a certain pressure, above which the capping device is employed since the capping device has a higher pressure rating than the blowout preventer.

公开(公告)号：US10227865B2

公开(公告)日：2019-03-12

申请号：US15153073

申请日：2016-05-12

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Stephen K. Chiu ,  Phil D. Anno

IPC: E21B47/09 ,  E21B44/00

Abstract: Systems and methods compute dysfunctions via mapping of tri-axial accelerations of drill pipe into drill-string motions. The methods remove gravitational and centripetal accelerations to yield corrected acceleration data due to the vibration only, transform the corrected acceleration data, and maps resulting transformed acceleration data into continuous drill-string positions. The maps provide 2D/3D visualization of drill-string motions to enable real-time optimization and control of well drilling operations and other scenarios where proactive detection of temporal events in automated systems may aid in avoiding failures.

公开(公告)号：US20190055834A1

公开(公告)日：2019-02-21

申请号：US15937139

申请日：2018-03-27

Applicant: CONOCOPHILLIPS COMPANY

Inventor： Son V. PHAM

IPC: E21B47/022 ,  G01V3/26 ,  E21B7/04 ,  E21B49/00

Abstract: An improved IFR1 technique wherein a single mid-lateral well measurement of local magnetic field is used instead of single wellhead or BHA points of measurement, or a plurality of wellbore measurement methods.