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Matches 51 - 100 out of 151,663

Document Document Title
WO/2021/005170A1
The present invention relates to a connector for a spoil pipe of a tunnel boring machine, comprising: - a connector (7) having a first end (8) configured to be fitted and attached to the flexible tubing (4) of the spoil pipe (1) and a se...  
WO/2021/005238A1
There is provided a system for mounting an operative element (17) to a downhole tubular (12), the downhole tubular (12) having a longitudinal axis, the system comprising a releasable mandrelless tubing mount (14) wherein the tubing mount...  
WO/2021/007024A2
A well barrier can include an inner mandrel, a flow passage, and a releasably secured plug. The plug blocks fluid flow through the flow passage, and includes a shoulder that prevents the plug from displacing completely through the inner ...  
WO/2021/006896A1
A system and method for controlling multiple drilling tools inside wellbores makes use of Bayesian optimization with range constraints. A computing device samples observed values for controllable drilling parameters such as weight-on-bit...  
WO/2021/007483A1
A mud pulse telemetry valve assembly and method including a mud valve sub and a mud pulse telemetry valve. The mud pulse telemetry valve having a flow tube positioned within the mud valve sub in a way that at least a portion of an outer ...  
WO/2021/006930A1
Systems and techniques for determining properties of a formation comprising are disclosed. A test tool attached to test string comprising a fluid conduit is deployed to a test position within a wellbore. The deploy ment includes hydrauli...  
WO/2021/006891A1
The present disclosure relates to multiple stage operations, and more particularly to systems and methods for performing, second stage cementing operations with a stage tool. A stage tool comprises: a mandrel; an opening seat; a closing ...  
WO/2021/007261A1
A highly elastic annular seal assembly includes a metal stabilator having inner and outer spaced-apart and projecting annular plates coupled to a common base and forming a U-shaped geometry, and a metal seal ring having inner and outer s...  
WO/2021/006742A1
A drilling system (200) comprising a drill floor (7) having a well centre opening (6); a setback (49) for supporting a plurality of vertically stacked pipe strings (33), the setback (49) having a setback surface (30) arranged at a lower ...  
WO/2021/006802A1
A nozzle (5) for injecting a multi-component mixture into a rock hole, wherein the mixture is adapted for securing a bolt in the rock hole. The nozzle (5) comprises first and second channels (31, 33) adapted to receive a first respective...  
WO/2021/006912A1
Provided are systems and methods for wellbore drilling and, more particularly, example embodiments may use of one or more cutting elements including a cutting face with one or more channels capable of steering chip cuttings into an inten...  
WO/2021/004442A1
A method for correcting a crack fracturing parameter result for microseismic interpretation, the method comprising: A. according to the degree of fitting between a microseismic monitoring result and an amount of sand added, classifying c...  
WO/2021/007182A1
A method for monitoring pitting corrosion of a production tubing in a hydrocarbon well under downhole conditions during a production process using a coupon segment, the method comprising the steps of placing the coupon segment in the hyd...  
WO/2020/123279A8
Polyesters having both α,β-unsaturated groups and moieties containing activated methylene or methine groups, such as those of beta-ketoester and malonate, are curable in the presence of a base catalysts to form crosslinked networks. Fo...  
WO/2021/006944A1
A wellbore servicing fluid comprising (a) a cationic formation stabilizer having (i) a molecular weight in a range of from equal to or greater than 0.05 to equal to or less than 2.0 kiloDaltons (kDa), or (ii) cationic charge functional g...  
WO/2021/006894A1
A power system a method for enhanced voltage protection. The system may comprise a surface high voltage power supply, a voltage controller connected to the surface high voltage power supply that sends commands to the surface high voltage...  
WO/2021/006935A1
A method of hierarchical pressure management for managed pressure drilling operations includes receiving a measured pressure value. If the measured pressure exceeds an MPD pressure set point, commanding one or more choke valves of an MPD...  
WO/2021/007388A1
A method of recovering hydrocarbons from a subterranean formation includes injecting into the subterranean formation a composition including carbon dioxide and at least one carbon-dioxide-soluble compound under conditions favorable to di...  
WO/2021/003772A1
A method for coal mining without reserving a coal pillar and a tunneling roadway in a whole mining area, comprising the following steps: opening a main shaft (1), an auxiliary shaft (2), and a return air shaft (3) from the ground to a co...  
WO/2021/004909A1
The present invention relates to a drill bit (100) for percussion drilling comprising: a drill bit body (101) intended to extend along an axis A and comprising a front surface (105), said front surface comprises a first circular area (11...  
WO/2021/006872A1
The present disclosure relates generally to equipment utilized and operations performed in conjunction with a subterranean well and, more particularly, to an improved liner hanger system. An downhole expandable liner hanger positionable ...  
WO/2021/007556A1
A downhole assembly that includes tubulars rotationally coupled to one another. An interface is between adjacent tubulars that makes up at least a portion of the rotational coupling. Certain surfaces of adjacent tubulars come into contac...  
WO/2021/007059A1
A choke system for a downhole valve including a first tubular having an outer surface, an inner surface, and a first flow port extending through the outer surface and the inner surface. A second tubular is shiftably arranged relative to ...  
WO/2021/007392A1
A method of monitoring a protective fluid of a wellbore tool includes flowing, by a sensor or a fluid moving device secured to a wellbore tool disposed at a downhole location within a wellbore, a portion of a protective fluid of the well...  
WO/2021/006907A1
A downhole logging device, a method of logging a wellbore, and a wellbore logging system are disclosed herein. In one example, the wellbore logging system includes surface equipment operable for monitoring logging operations in a wellbor...  
WO/2021/007194A1
Techniques for determining trajectories for a plurality of wells while avoiding collision between wells are presented. The techniques can include determining a zone of uncertainty for individual wells of the plurality of wells, determini...  
WO/2021/006732A1
A first aspect provides a device for processing a conduit. The device comprises a cutting module to cut at least part of the conduit over a longitudinal axis of the conduit by creating a first cut line in the conduit substantially parall...  
WO/2021/007509A1
A guide for a top drive unit includes a lower track member connected to a lower mast section and an upper track member connected to an upper mast section and telescoped with the lower track section. A slider is slidably positioned about ...  
WO/2021/005383A1
The method describes a way of improved oil recovery by the action of the electric field of the DC current and the electromagnetic field on the oil deposit (6) that is on the oil, the mentioned method comprises the following steps: a) Sel...  
WO/2021/007271A1
A method includes accessing a first well header dataset from a first repository; accessing a second well header dataset from a second repository; identifying matches and mismatches between data within the first well header dataset and da...  
WO/2021/006948A1
To mitigate zigzag noise and increase the quality of data provided from DAS VSP in wells with significant vertical sections, zigzag noise characteristics are identified and quantified. The zigzag noise properties can be extracted from an...  
WO/2021/003536A1
A return exhaust assembly (50) for a reverse circulation hammer H comprises return tube (52) having first and second ends and a seat (56) at or near the first end (54). An exhaust sleeve (58) has: a section (60) seated and resiliently su...  
WO/2021/004163A1
A packing method for injection and production in the same well and a well completion structure, the packing method comprising the following steps: (1) lowering a double-flow-channel tubular column into a well; (2) filling an annular spac...  
WO/2021/006743A1
A system and a method for stabilizing a drilling pipe and/or production riser (3) extending between a wellhead coupling (311) of a subsea well (1) and a well valve assembly (22) on a surface installation (2) which is floating in a water ...  
WO/2021/006865A1
The disclosure provides a formation fluid pumping method and pump, and a wellbore system that in one example includes wellbore surface equipment connected to a downhole tool including a formation fluid container having a fluid input port...  
WO/2021/007441A1
Macroparticulates may be formed through at least partial self-assembly by reacting an epoxide-containing (meth)acrylic polymer or copolymer with a compound bearing a nitrogen nucleophile. An internal cavity may be formed when functionali...  
WO/2021/006800A1
The present invention relates to a method for estimating wear of a drill bit in percussive rock drilling, wherein a percussion device (106) is configured for generating shock waves in a drill bit (108) for breaking rock; the method compr...  
WO/2021/005396A1
The invention relates to a method for determining the electrophoretic velocity of droplets of a first fluid in a second fluid, the method comprising: providing a first capillary (3') having an outlet positioned in a first channel (3); pr...  
WO/2021/007335A1
The downhole tool may include an electrical power source, a positive and a negative electrode, and at least one sensor. The positive and negative electrodes may be configured to generate an electric field between the positive and the neg...  
WO/2021/003552A1
The present invention discloses a novel aqueous composition for use in removing mixed sulfate scale from a surface contaminated with such, said composition comprising: a chelating agent and a counterion component selected from the group ...  
WO/2021/006352A1
A reinforced concrete structure which is obtained by sequentially providing the surface of a concrete structure with at least a reinforcement layer and a protective layer. The reinforcement layer has a structure wherein a glass fiber she...  
WO/2021/004044A1
Provided is a graphene heating thermal preservation sleeve for a wellhead of an oil-gas well in an oil field, the graphene heating thermal preservation sleeve comprising a high-temperature-resistant insulation layer (1), a graphene layer...  
WO/2021/002828A1
Aspects of the subject technology relate to a sensor container for a downhole tool. The sensor container can be mountable in a receiver space on a carrier that is insertable into a wellbore. The sensor container can comprise a container ...  
WO/2021/003198A1
A subsurface safety valve assembly has a valve body with an axially oriented valve bore and a valve cavity that intersects the valve bore. A disk valve member is positioned within the valve cavity and has a disk bore. A piston member is ...  
WO/2021/003101A1
System, methods, and devices for simultaneously fracturing a target formation and an adjacent secondary formation are disclosed. The simultaneous fracturing operations interfere with each other to form in-situ dynamic barriers. The in-si...  
WO/2021/003134A1
A bob for a viscometer in a portable rheology unit is provided. The bob may include a bob portion having a cylindrical portion and a first end portion, the cylindrical portion defining a first end of the bob. The bob may also include a p...  
WO/2021/002829A1
A drilling tool for use in a wellbore is provided. The drilling tool comprises a first collar having a first bore extending from a first send to a second end and an internal thread disposed on the bore at the second end. The drilling too...  
WO/2020/239649A3
The invention provides a method of monitoring influx of a fluid to a hydrocarbon producing well comprising providing at least one tracer release apparatus (100) in a hydrocarbon producing well at an influx location (14a-14d). The at leas...  
WO/2021/003247A1
A subsea tree assembly with a flow monitoring and measuring apparatus includes a production wing valve block coupled to a production wing branch, the production wing valve block including a wing block connector, and a fluid processing mo...  
WO/2021/003476A1
A method and system for removing wax deposits from a wellbore and other oil production and processing equipment using a wax removal surfactant having at least 1% alkyl poly glycoside (APG), at least 0.5% ethoxy lated alcohol (AE) or alco...  

Matches 51 - 100 out of 151,663