SIDE POCKET MANDREL WITH RETRIEVABLE REDUNDANT ELECTRIC GAS LIFT VALVE

    公开(公告)号:US20240352837A1

    公开(公告)日:2024-10-24

    申请号:US18136796

    申请日:2023-04-19

    发明人: Donavan Brown

    IPC分类号: E21B43/12 E21B41/00

    CPC分类号: E21B43/123 E21B41/0035

    摘要: A side pocket mandrel for use within a gas lift system has a central body that includes a central bore and a valve pocket that is offset from the central body. The valve pocket includes a power landing in the valve pocket and configured to provide an electrical connection to the electric gas lift valve and a conductor connected to the power landing and configured to provide electric power to the power landing. The side pocket mandrel further includes a pneumatic gas lift valve installed within the valve pocket and an electric gas lift valve installed within the valve pocket. The electric gas lift valve and pneumatic gas lift valve can be installed or retrieved from the valve pocket using wireline-based tools without removing the side pocket mandrel from the well.

    MODEL FOR CONSTRAINING RATE OFPENETRATION THROUGH LOADING RATE ANDDRILLSTRING VIBRATIONS ANALYSIS

    公开(公告)号:US20240330543A1

    公开(公告)日:2024-10-03

    申请号:US18191229

    申请日:2023-03-28

    发明人: Hussain Albahrani

    IPC分类号: G06F30/23 E21B41/00

    摘要: Systems and methods for constraining rate of penetration through a loading rate and drillstring vibrations analysis are disclosed. The methods include obtaining a rock type of a formation to be drilled, determining a rock-type specific loading rate model for the rock type, obtaining surface drilling parameters for each of a plurality of rate of penetration (ROP) values; and obtaining a plurality of bottom hole assembly (BHA) designs. The methods further include determining impact forces for each of the plurality of BHA designs using a drill string vibrational model and the surface drilling parameters, predicting rock failure using the impact forces, rock type specific loading rate model, and a finite element model (FEM), and selecting particular surface drilling parameters based on the predicted rock failure.

    Safety plug
    8.
    发明授权

    公开(公告)号:US12104450B2

    公开(公告)日:2024-10-01

    申请号:US18016270

    申请日:2021-07-14

    摘要: A safety plug for use in a bore hole comprising a bore wall. The safety plug comprises a body having a leading end and a trailing end, and at least one flared portion. An anchoring element extends at least partially around an associated flared portion. Axially displacement of anchoring element relative to its associated flared portion causes the anchoring element to bear against the flared portion and transitions the anchoring element between an unexpanded condition and an expanded condition. A nose, comprising conical elements, extends longitudinally from the leading end of body. The nose is longitudinally compressible.

    SEQUESTRATION OF CARBON IN SUBTERRANEAN VOLUMES

    公开(公告)号:US20240309733A1

    公开(公告)日:2024-09-19

    申请号:US18677213

    申请日:2024-05-29

    IPC分类号: E21B41/00 C01B32/60

    CPC分类号: E21B41/0064 C01B32/60

    摘要: A method for subsurface sequestration of carbon in a subterranean zone includes forming a fluid-filled volume in the subterranean zone by injecting an aqueous into the subterranean zone and injecting a mixture comprising silicate nanoparticles suspended in an acidic solution having a pH of less than 4. Carbon in the form of carbon dioxide is injected into the fluid-filled volume such that a least a portion of the carbon is sequestered by precipitation of carbonate minerals. At least a portion of the carbonate minerals are formed from reaction of metal cations with bicarbonate formed from the carbon dioxide, and least a portion of the metal cations are a product of decomposition of the silicate nanoparticles in the acidic solution.