Subsea equipment installation
    421.
    发明授权

    公开(公告)号:US11585179B2

    公开(公告)日:2023-02-21

    申请号:US17493301

    申请日:2021-10-04

    Abstract: The invention relates to the drilling of subsurface oil and gas wells and the installation of subsurface equipment (11). A lifting vessel 7 brings heavy equipment such as Xmas trees or manifolds and wet parks this equipment (11) on the seafloor (5) during good weather when the significant wave height is low. The equipment (11), once it is underwater, has much lower weight and may easily be moved into place onto a wellhead (10) at an appropriate time using lower capacity lifting gear. The timing of this operation is much less sensitive to weather conditions because the equipment does not need to pass through the splash zone (sea surface). This makes for efficient use of expensive drilling rig time, and allows for acceleration of production of first wells on the template as critical heavy lifts could not else be done until rig has left the location. (FIG. 1).

    LOW FREQUENCY DISTRIBUTED ACOUSTIC SENSING HYDRAULIC FRACTURE GEOMETRY

    公开(公告)号:US20230003119A1

    公开(公告)日:2023-01-05

    申请号:US17741197

    申请日:2022-05-10

    Inventor: Ge JIN Baishali ROY

    Abstract: Monitoring and diagnosing completion during hydraulic fracturing operations provides insights into the fracture geometry, inter-well frac hits and connectivity. Conventional monitoring methods (microseismic, borehole gauges, tracers, etc.) can provide a range of information about the stimulated rock volume but may often be limited in detail or clouded by uncertainty. Utilization of DAS as a fracture monitoring tool is growing, however most of the applications have been limited to acoustic frequency bands of the DAS recorded signal. In this paper, we demonstrate some examples of using the low-frequency band of Distributed Acoustic Sensing (DAS) signal to constrain hydraulic fracture geometry. DAS data were acquired in both offset horizontal and vertical monitor wells. In horizontal wells, DAS data records formation strain perturbation due to fracture propagation. Events like fracture opening and closing, stress shadow creation and relaxation, ball seat and plug isolation can be clearly identified. In vertical wells, DAS response agrees well with co-located pressure and temperature gauges, and illuminates the vertical extent of hydraulic fractures. DAS data in the low-frequency band is a powerful attribute to monitor small strain and temperature perturbation in or near the monitor wells. With different fibered monitor well design, the far-field fracture length, height, width, and density can be accurately measured using cross-well DAS observations.

    DISSOLVABLE SLEEVE FOR HYDROCARBON WELL COMPLETIONS

    公开(公告)号:US20220389301A1

    公开(公告)日:2022-12-08

    申请号:US17832149

    申请日:2022-06-03

    Abstract: The invention relates to the use of a sleeve (9) installed in a liner or casing (1) prior to a cementing operation. Completion equipment in the liner/casing creates an irregular inner profile which can cause cement to get trapped. A wiper dart (3) passed down the casing/liner (1) may have difficulty removing all residual cement (5). By using a sleeve or insert (8) in the liner/casing (1), a smooth inner profile (9) may be created which can be cleaned relatively easily by a wiper dart. Once cementing and cleaning are complete, the sleeve (9) may be removed by wellbore fluid or acid if it is made from a dissolvable material such as aluminum or magnesium.

    DISSOLVABLE PLUG REMOVAL WITH EROSIVE TOOL

    公开(公告)号:US20220364429A1

    公开(公告)日:2022-11-17

    申请号:US17735043

    申请日:2022-05-02

    Abstract: Methods of plugging a hydrocarbon well by using degradable plugs are provided. When the plug is no longer needed, a degradation fluid or fluids are pumped downhole under high pressure, typically via jet, such that the degradation fluid provides an erosive force to the degradable plug, thus both speeding its degradation and preventing or minimizing the leaving of solid plug material remnants in the well.

    LNG PROCESS FOR VARIABLE PIPELINE GAS COMPOSITION

    公开(公告)号:US20220364005A1

    公开(公告)日:2022-11-17

    申请号:US17815178

    申请日:2022-07-26

    Abstract: The invention relates to a system, method and apparatus for processing natural gas in an LNG facility. A natural gas feed is introduced into a heavies removal unit. The heavies removal system includes a heavies removal column and a distillation column. The heavies removal column and the distillation column are connected via a purge/recovery line. One or more components of the natural gas feed is purged from the heavies removal column to the distillation column via the purge/recovery line to obtain a specified concentration or concentration range of heavy components feeding into the distillation column.

    SYSTEMS AND METHODS FOR PREDICTIVE RESERVOIR DEVELOPMENT

    公开(公告)号:US20220351111A1

    公开(公告)日:2022-11-03

    申请号:US17734856

    申请日:2022-05-02

    Abstract: Implementations described and claimed herein provide systems and methods for predictive reservoir development. In one implementation, asset data is received for a particular asset, with the particular asset corresponding to a particular reservoir. A model of the particular asset is generated based on the asset data. Asset intelligence is generated for the particular asset at an asset life cycle stage based on the model, and development of the particular reservoir is optimized using the asset intelligence.

    STABILIZATION OF FLOW BY MOVEABLE CHOKE

    公开(公告)号:US20220341534A1

    公开(公告)日:2022-10-27

    申请号:US17729782

    申请日:2022-04-26

    Abstract: A method to reduce slugging in a pipeline, including flowing a fluid flow through a pipeline having a fluid flow path extending therethrough and determining a presence of a slug within the fluid flow path of the pipeline. Launching a chokeable pig into the fluid flow path, anchoring the chokeable pig at a predetermined location within the fluid flow path, and adjusting the pressure drop through the pipeline.

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