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WO/2021/103043A1 |
Disclosed is a pressure maintaining coring device flap valve with a multistage sealing structure, the flap valve comprising a valve seat (1) and a valve clack (2), wherein one end of the valve clack (2) is movably connected to the upper ...
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WO/2021/103042A1 |
A high-pressure experimental chamber detection system based on vision-laser combined detection, comprising a pressure chamber (2), a camera (9), a flap valve, and a 3D laser sensor for detecting three-dimensional strain of a valve flap (...
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WO/2021/103044A1 |
Disclosed are an active pressure compensation structure of a corer provided with an electric motor for boosting the pressure, and a method. The structure comprises a pressure compartment (1), a plunger pump, an electric motor (3) and a t...
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WO/2021/105909A1 |
A drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a lightweight drill rod used in core drilling with a bore, an inner drill rod comp...
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WO/2021/105910A1 |
In one aspect the present invention may be said to comprise a drill rod for assembly with other drill rods to form a drillstring used for fluid reverse circulation drilling comprising: an outer drill rod comprising a bore that is tapered...
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WO/2021/087558A1 |
A measurement device for a core drilling tool, the measurement device comprising: one or more data acquisition portions, and a housing portion configured to receive the one or more data acquisition portions, wherein the measurement devic...
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WO/2021/081216A1 |
A coring tool includes a coring bit to cut and detach a core sample from a subsurface formation formed in a borehole. The coring tool includes a pressure vessel that includes a core chamber to store the core sample at a pressure and a pi...
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WO/2021/076844A1 |
A core barrel head assembly having a longitudinal axis can comprise an elongate tube body having an outer surface, an interior cavity, a proximal end, and a distal end. The elongate tube body can define a helical groove that extends from...
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WO/2021/067720A1 |
Investigating the permeability and porosity of geological samples is a routine element of geological studies, and is of particular interest in the oil and gas industry. Core-flood experiments are commonly performed on rock samples to mea...
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WO/2021/048496A1 |
The present invention concerns a method for producing a borehole, in particular a large-diameter borehole, along a drilling axis, comprising the steps of: i) producing an exploration borehole along the drilling axis, ii) digging a hole i...
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WO/2021/046175A1 |
A tubing obstruction removal device comprised of a tubular housing, a valve assembly disposed in an inlet region of the housing, and a vibratory drive disposed in the housing. The valve assembly includes a valve plate and a spring. The v...
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WO/2021/008638A1 |
The invention relates to a technological system having one or more mechanical structures formed by rails with motors and pulleys that move a platform on which video cameras are installed, and which allows objects to be displayed on scree...
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WO/2020/243767A1 |
There is disclosed a device for boring holes in a ground surface comprising: a core barrel having a barrel top and an open barrel bottom, the barrel top having a shaft mounted thereto for engaging with a rotary power source for rotating ...
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WO/2020/198812A1 |
There is disclosed a torque transfer apparatus for a mineral drilling tool used in a downhole assembly of a drill string. The drilling tool has a downhole drill bit and one or more uphole drill bits spaced apart from the downhole drill b...
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WO/2020/162767A1 |
The invention relates to an upper head assembly for a core barrel used in well drilling, which includes a main body, retractable body, a support element and a rear element. Fluid control means for increasing the passage of fluid during t...
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WO/2018/112560A9 |
A method (60) of determining core orientation of a core sample (12) cut from the ground by a drill rig (10) having a drill string and a drill bit (20) coupled to a downhole end of the drill string. Drilling data (Cn, Rn) is continuously ...
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WO/2020/143966A1 |
An apparatus and method for performing combined coring and drilling in a wellbore without performing a tripping operation. The apparatus comprises a core drilling assembly with a coring drill head (200), an outer tubing (210) for conveyi...
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WO/2020/133725A1 |
A core sampling and preservation system comprises the following sequentially connected modules: a drive module (300), a preservation module (200) and a core sampling module (100). The core sampling module (100) comprises a core drilling ...
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WO/2020/133724A1 |
A fidelity retaining type coring device for a rock sample, comprising a rock core drilling tool, a rock core sample storage barrel, and a rock core sample fidelity retaining cabin. The rock core drilling tool comprises a coring drilling ...
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WO/2020/125986A1 |
The invention relates to an underwater drilling device and a method for obtaining drill cores from the bottom of a body of water, wherein an underwater drilling device having a main frame is lowered into a body of water and placed on the...
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WO/2020/113513A1 |
An in situ active temperature-preserving core sampling device for deep rock and a temperature-preserving core sampling method therefor, applicable to the technical field of scientific drilling. The core sampling device comprises an in si...
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WO/2020/113515A1 |
Disclosed are a quality guaranteed deep rock coring device and a coring method therefor, applicable to the technical field of scientific drilling. The quality guaranteed deep rock coring device comprises a drilling tool (1), a drill (2),...
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WO/2020/113307A1 |
An inner tube head assembly for a core barrel assembly having a latch casing coupled to a latch body, a landing shoulder coupled to the latch body and a spindle, and an inner tube cap assembly coupled between the spindle and an inner tub...
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WO/2020/113719A1 |
Disclosed is a fidelity coring device, comprising an outer barrel (10) and a fidelity cabin (30), wherein the fidelity cabin (30) is arranged in a hollow cavity of the outer barrel (10), the outer barrel (10) is used for drilling a rock ...
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WO/2020/113720A1 |
Disclosed is a fidelity coring device, comprising an outer barrel (10) and a fidelity cabin (30), wherein the fidelity cabin (30) is arranged in a hollow cavity of the outer barrel (10), the outer barrel (10) is used for drilling a rock ...
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WO/2020/113721A1 |
A fidelity coring device, comprising an outer cylinder (10) and a fidelity cabin (30). The fidelity cabin (30) is provided in a hollow cavity of the outer cylinder (10). The outer cylinder (10) is used for drilling a core. The fidelity c...
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WO/2020/100203A1 |
Provided is a core sampling device that is capable of accurately and reliably measuring the tilt of a core in a section in which the core is sampled. The core sampling device is provided with: a core sampling device body (1) attached to ...
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WO/2020/093414A1 |
A coring device, comprising a core drilling tool, a core catcher (6), a rock core barrel (1), a drilling machine outer cylinder (16), a flap valve (3) and an inner rod (2) for pulling the rock core barrel (1); the core catcher (6) is pro...
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WO/2020/093415A1 |
Provided is a core barrel sealing structure capable of increasing a sealing-specific pressure, comprising a core barrel (1), a drilling machine outer barrel (2), a chain mail-type flap valve and a trigger mechanism, wherein the flap valv...
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WO/2020/093410A1 |
Disclosed by the present invention is a drilling mechanism of a coring drilling rig, comprising a central rod, a fluid channel starting module, an outer barrel, an outer barrel unlocking module, a shunting module and a drill bit, wherein...
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WO/2020/096874A1 |
A percussion side wall core (PSWC) bullet has a central axis, a leading end, and a trailing end axially opposite the leading end. In addition, the bullet includes a first portion extending axially from the leading end of the bullet. Furt...
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WO/2020/093413A1 |
A control mechanism of a core drilling rig, comprising: a central rod (14) and an outer barrel (23). The central rod (14) passes through, from the rear to the front, the inner cavities of a fluid channel activation module, an outer barre...
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WO/2020/093408A1 |
A coring drill tool driving structure, comprising a driving motor (7), an outer cylinder (23) and a coring drill tool (8). The driving motor comprises an outer rotor (73) and an inner stator (75), the inner wall of the outer rotor and th...
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WO/2020/093412A1 |
A driving system for a core drilling rig, comprising a driving motor (7). The driving motor (7) comprises an outer rotor (73) and an inner stator (75), and mutually-matched convex ribs (77) are provided on the inner wall of the outer rot...
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WO/2020/093409A1 |
Disclosed in the present invention is a drilling control mechanism of a core drilling rig, comprising a tooth drill and a core drilling rig. The core drilling rig is inside the tooth drill and engages with the drill in a sliding manner. ...
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WO/2020/093411A1 |
A drilling fluid channel structure of a core drilling rig, comprising: a fluid channel activation module, a pressure relief module, a flow diverging and blocking module, a driving fluid channel (41) and a cooling fluid channel (42). The ...
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WO/2020/078623A1 |
The invention relates to a method and to a device for dismantling geothermal probes (3), wherein a probe body (30), consisting of a probe line (31) and solidified insulating filling (32), is reamed by means of a drilling device (1), whil...
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WO/2020/062810A1 |
A horizontal rotation and vertical drilling module for a deep well, comprising: a fixing plate (1) on which a first guide hole is provided, the first guide hole having a turnover section (11), a movement section (12), and a core folding ...
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WO/2020/034349A1 |
A hard rock coring drilling tool, comprising an outer core tube (5) and a hollow drill bit (1), wherein the drill bit (1) is installed at a lower end of the outer core tube (5), outer walls of the outer core tube (5) and the drill bit (1...
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WO/2020/034367A1 |
An automatic triggered docking and opening flip board structure, comprising a flip board valve and an outer barrel (4). The flip board valve comprises a valve base (1), a valve disk (2), and a spring piece (3). The valve base is provided...
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WO/2020/034351A1 |
Disclosed is a rock core storage cylinder, comprising a rock core cylinder (1), a drilling machine outer cylinder (2), a flap valve (3) and a triggering mechanism, wherein the flap valve (3) comprises a valve seat (31) and a sealing valv...
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WO/2020/034359A1 |
A rock core fidelity cabin having a thermostatic function, comprising a mechanical part and an electric appliance part. The mechanical part comprises an inner coring barrel (8) and an outer coring barrel (6); the outer coring barrel (6) ...
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WO/2020/034363A1 |
Disclosed is an interlocking mechanism for a core retrieval drill rig and a toothed drill. The toothed drill is hollow, and the outer wall of the core retrieval drill rig slidingly cooperates with the inner wall of the toothed drill. The...
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WO/2020/034364A1 |
A core drilling rig liquid channel starting mechanism, comprising a lock body (3), a locking rod (2), a shear pin (5), and a center rod (1). The lock body (3) is sequentially provided with a locking section (31), a sealing section (32), ...
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WO/2020/034353A1 |
Provided is a sealing structure with an explosion-proof function for an upper part of a pressure maintaining barrel. The sealing structure comprises a rock core barrel (1), an inner rod (2), and a relief valve (3), wherein a lower end of...
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WO/2020/034350A1 |
Disclosed is a core drilling tool, comprising a core drill bit, a core catcher (1) and an inner core pipe (2); the core drill bit comprises an outer core pipe (3) and a hollow drill (4); the drill includes second-level blades (411, 421),...
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WO/2020/034643A1 |
A drilling process of a pressure-preserving cable core drilling machine for subsea natural gas hydrates, comprising the following steps: 1) drilling down; 2) core drilling by suction and pure-pressing for soft formation, or core drilling...
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WO/2020/034368A1 |
A turnover plate structure capable of being automatically triggered. The turnover plate structure comprises a turnover plate valve, an outer cylinder (4), a core cylinder (7) and a trigger mechanism, wherein the trigger mechanism compris...
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WO/2020/034356A1 |
Disclosed is a pressure maintaining cylinder sealing structure, comprising a core barrel (1), an inner rod (2), a drilling outer cylinder (16) and a flap (18), wherein a lower end of the inner rod is in sealing cooperation with an inner ...
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WO/2020/034352A1 |
A chain armor type flap valve, comprising a valve base (1) and a chain armor type valve clack (2). The valve clack (2) comprises elastic seal rings (24), elastic connecting bars (22), seal elements (23), and multiple lock pieces (21) seq...
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