SINGLE TRIP MULTI-ZONE COMPLETION SYSTEMS AND METHODS

    公开(公告)号:EP2900908B1

    公开(公告)日:2018-10-31

    申请号:EP12885641.6

    申请日:2012-09-26

    IPC分类号: E21B43/14 E21B43/08 E21B43/26

    摘要: Disclosed are systems and methods of producing from multiple production zones with a single trip multi-zone completion system. One single trip multi-zone completion system includes an outer completion string having at least one sand screen arranged thereabout and a flow control device movably disposed within the at least one sand screen between an open position and a closed position, and an insert string arranged within the outer completion string and having at least one control and data acquisition module disposed thereon, the at least one control and data acquisition module having one or more mechanical coupling mechanisms extending therefrom and configured to locate and move the flow control device between the open and closed positions.

    REDRESSING METHOD AND REDRESSED COMPLETION SYSTEM
    5.
    发明公开
    REDRESSING METHOD AND REDRESSED COMPLETION SYSTEM 审中-公开
    减少方法和减少完成系统

    公开(公告)号:EP3310991A1

    公开(公告)日:2018-04-25

    申请号:EP16728984.2

    申请日:2016-06-15

    申请人: Welltec A/S

    发明人: HAZEL, Paul

    摘要: A redressing method for arranging an inner production casing within an existing production casing in order to re-establish production of hydrocarbon-containing fluid in a well, comprises providing the inner production casing to having a substantially constant inner diameter, the inner production casing comprising spaced first and second annular barriers. Each annular barrier has a tubular metal part and an expandable metal sleeve surrounding the tubular metal part. Each barrier has an inner face facing the tubular metal part and an outer face facing an inner wall of the existing production casing. The inner production casing has an outer unexpanded diameter which is smaller than the first inner diameter of the existing production casing. The existing production casing is redressed by introducing the inner production casing into the existing production casing, arranging the first annular barrier on one side of the first inflow section and the second annular barrier on the other side of the inflow section, thereby isolating an inflow of fluid from the first inflow section, encapsulating the first inflow section of the existing production casing by expanding the expandable metal sleeves of the first annular barrier and the second annular barrier, thereby isolating the first inflow section.

    PROCESSES FOR FRACTURING A WELL
    6.
    发明授权
    PROCESSES FOR FRACTURING A WELL 有权
    破坏井的过程

    公开(公告)号:EP2744977B1

    公开(公告)日:2018-02-21

    申请号:EP12823708.8

    申请日:2012-06-19

    发明人: SNIDER, Philip M.

    IPC分类号: E21B23/00 E21B33/128

    摘要: Processes and systems for fracturing a formation are disclosed. Tools that may be selectively opened and closed are positioned on a tubular liner that in turn is positioned within a subterranean well bore. Separate pairs of packers are also attached to and positioned along the tubular liner so as to straddle each tool. Fracturing fluid is pumped from the surface through the tubular and open tool and past a pair of packers at a temperature and injection rate which causes contraction of the tubular liner. Thereafter, the velocity of the fracturing fluid is sufficient to set the pair of packers adjacent the open tool. Continued pumping of fracturing fluid is directed by the set packers into the adjacent subterranean environs at a pressure sufficient to fracture the subterranean environs.

    MULTISTAGE HIGH PRESSURE FRACTURING SYSTEM WITH COUNTING SYSTEM
    10.
    发明公开
    MULTISTAGE HIGH PRESSURE FRACTURING SYSTEM WITH COUNTING SYSTEM 审中-公开
    MEHRSTUFIGES HOCHDRUCKAUFBRECHSYSTEM MITZÄHLSYSTEM

    公开(公告)号:EP3097257A4

    公开(公告)日:2017-09-27

    申请号:EP15740560

    申请日:2015-01-23

    摘要: The invention relates to a multistage high pressure fracturing system and tubular hydraulic valve (THV) system for connection to a completion string to enable isolation of a zone of interest within a well. In particular, the system enables access to a downhole formation for fracturing the zone of interest and for hydrocarbon production. The system generally includes a plug counting system, a plug capture system and a valve system wherein dropping a series of plugs down the completion string enables successive capture of individual plugs within individual THVs for subsequent fracturing operations.

    摘要翻译: 本发明涉及一种多级高压压裂系统和管式液压阀(THV)系统,用于连接到完井管柱以实现井内感兴趣区域的隔离。 具体而言,该系统能够进入井下地层以压裂感兴趣区和用于碳氢化合物生产。 该系统通常包括塞子计数系统,塞子俘获系统和阀门系统,其中将一系列塞子沿着完井管柱向下放下能够连续地捕获单个THV内的单个塞子用于随后的压裂操作。