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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/2019/231845A8 |
Provided is a test gravel pack assembly. The test gravel pack assembly, in one instance, includes a housing having first and second opposing surfaces, the first and second opposing surfaces defining a thickness that simulates a desired d...
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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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WO/2020/034354A1 |
A core cutting device, comprising an annular base body (1) and a plurality of claws (2), wherein the claws are uniformly arranged on the annular base body (1), lower ends of the claws (2) are connected to the annular base body (1), and u...
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WO/2020/034358A1 |
A core preservation compartment having a constant pressure function comprises a mechanical portion and a control portion. The mechanical portion comprises an inner coring barrel (8), an outer coring barrel (6), and an accumulator (29). T...
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WO/2020/034661A1 |
Disclosed is a sediment core-boring drilling process suitable for a submarine rope core-boring drill, which comprises the following steps: 1) drilling down; 2) pure press-in suction core-boring drilling; 3) single-action rotary press-in ...
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WO/2020/034362A1 |
An automatically closing mechanism of a core drilling rig, the mechanism comprising a flow channel blockage module, a decompression module and a central rod (6), wherein the flow channel blockage module is arranged in front of the decomp...
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WO/2020/034360A1 |
A constant-temperature and constant-pressure core preservation chamber, comprising a mechanical part and a control part. The mechanical part comprises an inner core extraction barrel (8), an outer core extraction barrel (6), and an energ...
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WO/2020/034361A1 |
Provided is an unlocking mechanism of a drilling rig outer barrel, the unlocking mechanism comprising a connection pipe (2), an outer barrel (3), and a lock pin (1), wherein the connection pipe (2), the outer barrel (3) and the lock pin ...
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WO/2020/034366A1 |
Disclosed is an automatic starting mechanism for a core drilling rig, comprising a liquid passage central rod (14), a liquid passage starting module, an outer cylinder (22) and an outer cylinder unlocking module. The liquid passage start...
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