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WO/2021/225164A1 |
Provided is a flack plug or the like capable of being inserted into a borehole to seal the borehole with high strength, and then quickly disassembled and removed, thereby efficiently producing petroleum. A flack plug (10) according to th...
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WO/2021/226215A1 |
A system for supporting a borehole junction includes a device configured to deploy a material in a solid state to a downhole location proximate to the borehole junction, and a heat source configured to apply heat to the material to a tem...
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WO/2021/225941A1 |
A zonal isolation assessment system includes a receiver (106), a production tubing (112) disposed in a wellbore, a zonal isolation assembly (104), and an assessment assembly (102). The zonal isolation assembly includes an isolation tubin...
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WO/2021/225957A1 |
This disclosure presents a latch back pressure valve for use with a wellhead assembly. The latch back pressure valve includes a body and at least one seal extending circumferentially around the body. A plurality of extendable latches are...
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WO/2021/221541A1 |
A method for developing an oil field under flooding conditions includes pumping a working fluid into injection wells and withdrawing oil from producing wells, wherein from among the producing wells, at least one well is selected which is...
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WO/2021/217332A1 |
The present invention relates to the field of petroleum downhole construction, and particularly to an anchoring assembly for a downhole tool and a downhole tool. The anchoring assembly comprises an anchoring assembly main body, wherein t...
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WO/2021/219318A1 |
The invention relates to a method for sealing and/or consolidating a subterranean formation, wherein an aqueous gelling solution containing an alkaline potassium silicate solution, an acetic acid and an aluminate is prepared and subseque...
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WO/2021/221691A1 |
A downhole tool for use within a borehole. The downhole tool may include a body including a port that allows fluid flow between a bore of the downhole tool and an area outside of the body and a sleeve slidable from a run-in position to a...
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WO/2021/222496A1 |
A seal assembly includes a plurality of components arranged in a seal stack within a seal bore. The plurality of components include: a substantially T-shaped seal element; and two substantially V-shaped seal elements, one of the two subs...
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WO/2021/222558A1 |
A segmented button for a slip of a downhole tool comprising a plurality of segments affixed to one another. A slip for a downhole tool including a slip body, a recess in the slip body, and a button having a plurality of segments in the r...
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WO/2021/221513A1 |
A method and apparatus for sealing a well conduit includes moving a plugging tool (21) to a first position in the well conduit, the plugging tool (21) comprising a perforating tool (12) and a hollow mandrel (8) with a heater (8) inside a...
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WO/2021/222596A1 |
A method of performing a completion operation at a wellbore includes flowing a plug downhole within fluid through a pipe disposed within the wellbore, landing the plug on a platform carried on the pipe to close the pipe to fluid flow, fl...
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WO/2021/222566A1 |
A non-metallic tubular defines a central flow passage. Actuable rollers are actuable between an extended position and a retracted position. The actuable rollers are pivotally attached to the non-metallic tubular. The actuable rollers cen...
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WO/2021/214452A1 |
The invention concerns a pipe joint formed between a pin section (10) and a box section (20); the pin and box sections each having a tubular pipe section, engaging at respective first ends in end-to-end arrangement and having a seal elem...
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WO/2021/212201A1 |
Wellbore synthesis techniques are disclosed suitable for use in geothermal applications. Embodiments are provided where open hole drilled wellbores are sealed while drilling in sequenced operations with utilization of phase change materi...
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WO/2021/216827A1 |
A downhole tool includes a slips assembly, a cone positioned at least partially within the slips assembly, the cone being configured to move axially relative to the slips assembly such that the cone presses the slips assembly radially ou...
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WO/2021/212902A1 |
A method for enhancing the reservoir stability in a hydrate exploitation process, which belongs to the field of natural gas hydrate exploitation, based on the reservoir characteristic of the argillaceous silty sand hydrate in the Shenhu ...
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WO/2021/216649A1 |
A rotary lock system includes a gear configured to be driven to rotate via an engine. The rotary lock system includes a rotatable starter component configured to engage the gear via an interface. The interface includes a circumferential ...
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WO/2021/214216A1 |
Intervention apparatus (10) for gaining lateral access to a well (12) via a lateral access passage of the well, comprising an outer pipe (28) and a flexible guide pipe (40) for guiding a flexible conduit (46) towards the lateral access p...
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WO/2021/209798A1 |
A well pad construction system includes a construction area (20), surface compaction equipment (22, 24) to compact the construction area (20), an excavator (34) disposed at the construction area (20) and movable to generate an excavated ...
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WO/2021/211459A1 |
A fast-acting managed pressure drilling rig is disclosed. A main valve (304) configured as an alternative for a conventional rotating control device and effects a seal between the running pipe outside diameter and the well annulus is pro...
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WO/2021/211638A1 |
Methods and systems for sealing a lost circulation zone associated with a subterranean include determining geophysical data of the lost circulation zone. An available range of lost circulation shape data and an available range of lost ci...
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WO/2021/209754A1 |
The invention provides a subsea oil and gas production installation, methods of installing the installation and methods of use. The installation comprises a subsea production system comprising a first production pipeline and a second pro...
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WO/2021/211179A1 |
A wellbore isolation device, comprising: a mandrel (24) having a cylindrical body; a sealing element (38) disposed about the mandrel (24) and radially expandable from a first run-in diameter to sealing engagement with the an inner surfac...
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WO/2021/209443A1 |
Disclosed is a valve assembly (100) for drainage or deaeration of a hydraulic system (114), The valve assembly (100) comprising: a valve (102) comprising a first side (104) and a second side (106), the first side (104) is configured to b...
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WO/2021/211306A1 |
A setting tool can include a hydraulic setting mechanism that actuates in response to a level of a pressure differential between a central flow passage and an exterior of the setting tool, and a check valve assembly that permits flow bet...
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WO/2021/211143A1 |
Systems, methods, and apparatuses of the present disclosure generally relate to dissolvable plugs for separating fluids in a wellbore. A dissolvable plug includes a first end comprising a first fluid barrier. The first fluid barrier incl...
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WO/2021/211130A1 |
The disclosure provides a dual plug system, comprising a bottom plug, wherein the bottom plug comprises: a bottom plug mandrel; a plurality of first fins; and a first seat; wherein the plurality of first fins is disposed between a first ...
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WO/2021/207304A1 |
A completion string includes at least one isolation packer positioned between well zones of a plurality of well zones, and a sand control assembly and a circulating assembly each disposed uphole of a washdown shoe in the bottom-most well...
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WO/2021/203643A1 |
A shunt device (100) for reverse circulation gas-based drilling comprises: an upper connector (1) connected to a two-walled drilling rod (55); an inner pipe (2) provided in the upper connector (1), wherein the inner pipe (2) defines a fi...
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WO/2021/202086A1 |
A liner string (10) for a wellbore includes a liner hanger assembly LHA (30) and a liner hanger deployment assembly LHDA (20) releasably attached to the LHA (30). The LHDA (20) includes a central bore (21) and a running tool (400) moveab...
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WO/2021/202441A1 |
A detection system includes a pressure sensor configured to contact an annular elastomer component of an annular BOP, wherein the pressure sensor is configured to generate a first signal indicative of a contact pressure with the annular ...
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WO/2021/196740A1 |
Disclosed are a temporary plugging agent and a preparation method therefor, and a temporary plugging deflection fracturing method for a high temperature reservoir. The temporary plugging agent comprises the following components by mass f...
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WO/2021/203137A1 |
Some systems and methods include a tubular defining a passageway, one or more packers coupled to the tubular, and two or more valves coupled to the tubular. Some such systems are operable by increasing pressure within the passageway such...
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WO/2021/198700A1 |
The present invention relates to artificially reducing the porosity of any potential flow paths in the near-wellbore region of a well or in permeable zones within or surrounding a well. In doing so, the permeability in this the targeted ...
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WO/2021/195752A1 |
Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may include a rupture disc having a side surface that has a shallow angle taper inward towards a botto...
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WO/2021/197962A1 |
It is described a single line quick connector (10), a system comprising the connector (10) and associated method, for connecting a hydraulic, chemical or water fluid line (20) to a fluid connection interface (2) on a component (1), where...
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WO/2021/202162A1 |
Downhole hanger systems are described. The downhole hanger systems include a first structure having an outer surface, a second structure having an inner surface, wherein the first structure is disposed within the second structure, and at...
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WO/2021/202388A1 |
A gravel packing system includes a show assembly including a washdown shoe at an end of the shoe assembly and a blank section uphole of the washdown shoe, a base pipe having an upper base pipe joint and a lower base pipe joint coupled at...
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WO/2021/202087A1 |
A stop collar assembly includes a collar (116) having inner and outer surfaces. The inner surface includes a taper (150). The outer surface includes a slope (156). The stop collar assembly further includes a slip (118) having a bottom en...
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WO/2021/202301A1 |
A suspension head (11) is provided for connection between a high pressure riser (8) and a subsea wellhead (9), for use in drilling and completion operations in which a jack-up rig (1) is employed and a blowout preventer (7) is installed ...
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WO/2021/195132A1 |
A roll-out apparatus, method, and system is disclosed for deployment in a subterranean well at a setting location. The roll-out apparatus, method, and system includes a load ring and an energizing ring. The load ring may include an outer...
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WO/2021/195537A1 |
A wellhead container for a geothermal system includes a base configured to engage a bottom of a recess within a ground. The recess extends vertically from the bottom of the recess to a surface of the ground, the base includes at least on...
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WO/2021/194574A1 |
Bottom hole assemblies for deploying sheets of material in a wellbore include: a body configured for attachment to a drill pipe; a spool ring attached to the body; a spring ring; and rolls of fabric.
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WO/2021/189932A1 |
A plugging method, applied to a mid-deep strata geothermal well (6), and comprising: removing soil of a leakage area, and adding backfill soil and compacting same to form a backfill soil layer (4); drilling at leakage points of the leaka...
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WO/2021/194830A1 |
A subsea mud evaluation system includes a blowout preventer (BOP), coupled to a wellbore formed in an underground formation, the blowout preventer being positioned proximate a sea floor. The system also includes a riser fluidly coupled t...
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WO/2021/194390A1 |
The invention relates to the oil and gas production industry, and more particularly to technologies for redistributing filter flows in the near-well region of an injection well. The essence of the invention consists in that the present m...
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WO/2021/194575A1 |
Bottom hole assemblies for deploying fabric can include: a body configured to be attached to a drill pipe; a control tube disposed inside the body at a position controlled by engagement of a cam with a continuous guide path; a set tube, ...
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WO/2021/194571A1 |
A method of sealing a lost circulation zone (LCZ) during a drilling operation by: positioning a bottom hole assembly (BHA) at an initial position proximate a LCZ in a wellbore, wherein the BHA includes a drill bit fluidly connected with ...
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WO/2021/190787A1 |
The invention relates to a self-propelled valve actuator on a rail transport system for manifolds and Christmas trees. The valve actuator is moveable along a transport rail and may operate several valves. The valve actuator is driven by ...
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