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    AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION
    51.
    发明申请
    AUTOMATED INITIAL SHUT-IN PRESSURE ESTIMATION 有权

    公开(公告)号：US20220307371A1

    公开(公告)日：2022-09-29

    申请号：US17669155

    申请日：2022-02-10

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Herbert W. SWAN

    IPC: E21B49/00 ,  E21B47/06 ,  E21B43/26

    Abstract: Water hammer is oscillatory pressure behavior in a wellbore resulting from the inertial effect of flowing fluid being subjected to an abrupt change in velocity. It is commonly observed at the end of large-scale hydraulic fracturing treatments after fluid injection is rapidly terminated. Factors affecting treatment-related water hammer behavior are disclosed and field studies are introduced correlating water hammer characteristics to fracture intensity and well productivity.

    ORIENTATION RING
    52.
    发明申请
    ORIENTATION RING 有权

    公开(公告)号：US20220307352A1

    公开(公告)日：2022-09-29

    申请号：US17703698

    申请日：2022-03-24

    Applicant: ConocoPhillips Company

    Inventor： Jesse J. Constantine ,  Robert Hand ,  Neal Adams

    IPC: E21B43/119 ,  E21B17/042

    Abstract: Implementations described and claimed herein provide systems and methods for increasing accuracy of firing perforating charges in an oil well casing. In one implementation, a body of an orientation device has a first portion and a second portion. An opening extends through a center of the body from a first lateral surface to a second lateral surface, and the opening is configured to receive a perforating gun string. An outer perimeter surface extends about the center of the body from the first lateral surface to the second lateral surface. The outer perimeter surface has a first shape associated with the first portion and a second shape associated with the second portion. The second shape forms a base portion configured to maintain the perforating gun string in an orientation by preventing rotation of the perforating gun string. The orientation corresponds to a predetermined perforating charge direction of the perforating gun string.

    METHOD AND APPARATUS FOR USE IN PLUG AND ABANDON OPERATIONS
    53.
    发明申请
    METHOD AND APPARATUS FOR USE IN PLUG AND ABANDON OPERATIONS 有权

    公开(公告)号：US20220307345A1

    公开(公告)日：2022-09-29

    申请号：US17655885

    申请日：2022-03-22

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： James RUTHERFORD

    IPC: E21B33/16 ,  E21B34/14 ,  E21B41/00

    Abstract: The invention relates to the use of a casing or liner (3) with pre-formed, selectively openable apertures (5), in plug and abandon operations at the end of life of a hydrocarbon well. The casing or liner (3) is installed at the start of the well's life and the apertures (5) are provided over a length of the casing/liner above the reservoir where a permanent plug would normally be formed when the well is abandoned at the end of its life. Associated with the apertures are sliding sleeve closure members (6) which are designed to remain operational over the 20-30 year lifetime of the well.

    Obstacle detection systems and methods
    56.
    发明授权
    Obstacle detection systems and methods 有权

    公开(公告)号：US11353618B2

    公开(公告)日：2022-06-07

    申请号：US16935009

    申请日：2020-07-21

    Applicant: ConocoPhillips Company

    Inventor： Phuong Hoang ,  Khalid A. Soofi ,  Benjamin Lascaud ,  Patrick R. Boyle

    IPC: G01V3/20 ,  E21B49/00 ,  G01C11/00 ,  G01C15/00

    Abstract: A system and method of detecting subsurface karst features includes receiving surface mapping data. A potential surface pad location can be identified in view of the surface mapping data. A resistivity survey for the potential surface pad location can be designed. The resistivity survey can include at least one long line extending through a surface hole for each of one or more wellbores in the potential surface pad location, and a short line extending through the surface hole of one of the one or more wellbores, each short line intersecting the long line substantially at the surface hole of one of the one or more wellbores. High resistivity areas exceeding approximately 150 Ohm per meter can be identified as sub surface karst features within the resistivity survey.

    ELEMENTAL SULFUR DISSOLUTION AND SOLVATION
    59.
    发明申请
    ELEMENTAL SULFUR DISSOLUTION AND SOLVATION 有权

    公开(公告)号：US20220112433A1

    公开(公告)日：2022-04-14

    申请号：US17494470

    申请日：2021-10-05

    Applicant: CONOCOPHILLIPS COMPANY

    Inventor： Jay LOCKLEAR ,  David P. COPE

    IPC: C10G29/28

    Abstract: Methods for preventing elemental sulfur deposition from a hydrocarbon fluid is disclosed. A mercaptan is added to a hydrocarbon fluid that has elemental sulfur and reacted with the elemental sulfur to produce a disulfide and hydrogen sulfide. Amines and/or surfactants can assist with the process. Secondary reactions between the disulfide and the elemental sulfur result in a polysulfide and a solvated sulfur-disulfide complex. The disulfide, hydrogen sulfide, polysulfide and solvated sulfur-disulfide complex do not deposit, and can optionally be removed.

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