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Matches 1 - 50 out of 948

Document Document Title
WO/2018/004390A1
The invention relates to the field of oil production equipment and is designed to prevent the upper stages of a centrifugal submersible pump clogging up with mechanical impurities, which are deposited from the oil well tubing when the pu...  
WO/2018/005598A1
A debris removal tool for removal of metallic debris from within a wellbore. The debris removal tool includes a housing defining a central bore and a plurality of magnetic members retained within the central bore and axially moveable the...  
WO/2017/203288A1
A downhole apparatus and method for expelling fluid which comprises a container defining a void which is separated into three separate sections by a floating piston and control member, each having a dynamic seal. A portion of the contain...  
WO/2017/203285A1
A method to manipulate a well comprising providing an apparatus (60) in a well (14) below a packer (22) or other annular sealing device, the apparatus comprising a container (68) having a volume of gas which is sealed at the surface and ...  
WO/2017/196926A1
Disclosed herein are compositions and methods for reducing fluid loss in a well bore. This invention relates to methods for wellbore strengthening and increasing the integrity of the borehole of an oil or gas well. In particular, the inv...  
WO/2017/192048A1
A well tool having a body configured for deployment in a tubular in a wellbore and having connection means (2; 2a) configured for connection to running tools and control means (3) for connection to uphole control means, characterized by ...  
WO/2017/184937A1
Methods and systems for automatically performing a sweep operation in a borehole penetrating an earth formation including conveying a drillstring through a borehole, the drillstring having one or more sensors located thereon, determining...  
WO/2017/176759A1
The present invention, in general, relates to portable/transportable apparatuses, methods, and systems for generating and delivering sulfur trioxide on-site or near an item to be treated. The present invention also relates to portable/tr...  
WO/2017/176254A1
The invention provides a method and system for treating a subterranean formation by detecting the displacement and position of a downhole fluid having a pH through the fluids reaction with a pH-sensitive material, mobilizing a plug assem...  
WO/2017/173266A1
A cleaning solution for the removal of asphaltene deposits includes a first dispersant comprising a quaternary ammonium compound and a second dispersant comprising a pyridinium compound.  
WO/2017/171556A1
There is described a device (1) for directing a fluid flow in an annulus around a pipe string (10) in a horizontal or deviated well, the device comprising: - an orientation sensing member (2, 6) adapted to distinguish between the high-si...  
WO/2017/156322A1
An embodiment of an apparatus includes an actuatable downhole tool with a brush actuator that includes brush elements extending outwardly from a slide member that surrounds a mandrel having a proximal end connectable to a tubular string....  
WO/2017/153429A1
Disclosed herein is a pipe assembly comprising: a pipe with an electrically conductive wall with a thermally conductive outer coating; a first electrical connector that is arranged in electrical contact with the wall of the pipe; and a s...  
WO/2017/146587A1
The invention relates to a downhole tool (100) for collecting debris in a petroleum well. The downhole tool (100) comprises: i) a housing (120) connected with a collection chamber (130-1, 130-2) for receiving debris, the housing (120) ha...  
WO/2017/147426A1
The present invention generally relates to methods and hydrate inhibitor compositions for inhibiting the formation of hydrates in a fluid comprising gas and water. More specifically, the method comprises contacting a hydrate inhibitor co...  
WO/2017/140955A1
The invention relates to a method for treating a liquid sample, which comprises disturbing iron and at least one organic compound of interest. The, the method comprises addition of a reagent comprising an ammonium salt, alkali metal salt...  
WO/2017/142504A1
A downhole cleanout tool includes a tool housing have a fluid inlet and a fluid outlet, and a filter between the inlet and the outlet. The tool includes a pump that is fluidly coupled to at least the fluid inlet to motivate fluid across ...  
WO/2017/135941A1
Disclosed are various to blockage remediation systems for removing blockages, e.g., hydrate plugs, debris plugs, etc., from subsea flowlines and subsea equipment. In one illustrative embodiment, the system includes, among other things, a...  
WO/2017/124139A1
A process for inhibiting the formation of gas hydrates in a hydrocarbon fluid comprising adding to the hydrocarbon fluid a hydrate inhibitor which is a polymer comprising covalently bound thereto at least one trithiocarbonate or dithioca...  
WO/2017/122008A1
The invention provides a fluid discharge apparatus (102) and a method of use. The apparatus (102) comprises a body (106) comprising an inlet (122) configured to receive fluid from a fluid source, and one or more fluid discharge ports (14...  
WO/2017/120287A1
Disclosed are compositions including up to 20 wt% of a paraffin inhibiting polymer and one or more non-polymeric glycol ether compounds, wherein the compositions are stable and flow at a temperature between about 0 °C and -40 °C, in ma...  
WO/2017/120286A1
Disclosed are compositions including up to 20 wt% of a paraffin inhibiting polymer and a non-polymeric ester compound, wherein the compositions flow at a temperature between about 0 °C and -40 °C, or between about -20 °C and -40 °C. ...  
WO/2017/106685A1
Provided herein are methods of drawing out oils and/or fats (e.g., hydrocarbons) from a solid material (such as, e.g., metal or rock, e.g., a hydrocarbon bearing geologic formation). The methods comprise fumigating the solid material wit...  
WO/2017/099840A1
The present invention relates to a thermally stable polymeric scale inhibitor compositions and use thereof. Preferably, the polymeric scale inhibitor is a polycarboxylic acid copolymer comprising acrylic acid, methacrylic acid, and styre...  
WO/2017/089846A1
The invention relates to a process for feeding an inhibitor into a gas pipeline for preventing hydrate formation, comprising the steps of: a) determining the feed rate of the inhibitor to be fed into the gas pipeline by taking gas in sit...  
WO/2017/091058A1
Aqueous fluids containing hydrophobic particles are effective media for cleaning water-base drilling fluids and drilling fluid solids from the interior surface of a casing string. Hydrophobic fibers may be added to a drilling fluid, a sp...  
WO/2017/087263A1
Fluids containing surfactants and hydrophobic particles are effective media for cleaning non-aqueous fluids (NAFs) out of a subterranean wellbore. The fibers and surfactants are may be added to a drilling fluid, a spacer fluid, a sacrifi...  
WO/2017/087765A1
Systems, methods and apparatus using a solid chemical as an injectable for inhibiting, decreasing or preventing precipitation and/or deposition of foulants and/or contaminants in oilfield tubulars. The use of solid chemicals providing ea...  
WO/2017/082901A1
A downhole chemical injection system that may include at least a first and a second injection port. The first injection port may be fluidically coupled with a chemical injection line and fluidically coupled with a production tubing strin...  
WO/2017/078703A1
Encapsulated scale inhibitors and methods of their use in subterranean formations are provided. In one embodiment, the methods comprise: providing a treatment fluid comprising a plurality of scale inhibitor particulates that comprise at ...  
WO/2017/079720A1
An apparatus for cleaning an inner surface of a marine riser (62) or a production riser (62), having an inside diameter in a range from 16 inches (40 cm) to 20 inches (51 cm), has a mandrel (16) and at least one brush member (12) and at ...  
WO/2017/076368A1
An energy-saving and environment-friendly paraffin and scale control ultra-strong viscosity reduction device comprises: a hydrocyclone (1), a first-stage jet flow ultrasonic signal generator (2), a second-stage jet flow ultrasonic oscill...  
WO/2017/070502A1
A centralizer having a first self-locking mechanism including a spring that is able to passively, (using only the tension in the spring), grip onto a pipe section once positioned. The spring mechanism restricts axial movement of the cent...  
WO/2017/068144A1
The present disclosure relates to a method for determining the flow rate of formation water and/or the total rate of produced water in a gas well. More particularly, the present disclosure relates to a method and system to determine the ...  
WO/2017/058151A1
A well system includes a work string extendable into a wellbore, and a pump that pumps a fluid into an annulus defined between the work string and the wellbore. A flow-activated motor is coupled to the work string and has a housing that ...  
WO/2017/055893A1
The present disclosure relates to compositions and methods for the removal of deposits from oilfield apparatus and wellbore surfaces. In particular, removal of deposits comprising heavy hydrocarbon materials and finely divided inorganic ...  
WO/2017/058894A1
A system (1) for stimulating a well with an annulus (3) formed by a string (2) and a wellbore (4), wherein the system (1) comprises a pressure activated injection assembly (200) configured to open at an activation pressure below an injec...  
WO/2017/035370A1
Diagnostic or assisting lateral wellbores can have a significant benefit for injecting and distributing treatment fluids and other materials within complex fracture networks that surpass conventional injection at the primary lateral well...  
WO/2017/031597A1
Apparatus and methodologies for cleaning a subterranean wellbore are provided. More specifically, a cleaning assembly and method of use is provided, the assembly being sealingly positioned within the wellbore and comprising a pump and a ...  
WO/2017/030596A1
An apparatus and method for controlling and/or minimizing the formation or accumulation of unwanted deposits on the inside of fluid flow paths by employing at various locations along the path an assembly of permanent magnets oriented suc...  
WO/2017/027725A1
A method of removing paraffin deposits from downhole tubing, pumps and valves is provided using hot water and recycling the hot water to allow continual intermittent cleaning throughout the lifespan of the well.  
WO/2017/026885A1
Aqueous fluids containing hydrophobic particles are effective media for cleaning water-base drilling fluids and drilling fluid solids from the interior surface of a casing string. Hydrophobic fibers may be added to a drilling fluid, a sp...  
WO/2017/020336A1
Provided are an electric-heating wax removal and prevention device with natural gas power generation based on skin effect and an application thereof. The device comprises a natural gas collecting part, a natural gas power generation part...  
WO/2017/009613A1
A downhole apparatus (10) that is selectively reconfigurable between a first configuration and a second configuration. The downhole apparatus comprises an actuator (24) for controlling the reconfiguration between the first and second con...  
WO/2017/000049A1
The present invention relates to a composition for removing organic deposits from oil wells and other subsurface systems, comprising cumene and biodiesel. The invention also relates to a method for removing organic deposits, comprising t...  
WO/2017/000622A1
A storage-type precise quantitative injection system for injection of an underground oil or gas well operating agent and an injection method thereof. The injection system comprises an injection tube (3-2) and overground pressurizing equi...  
WO/2016/207359A2
The present invention a subsea storage of MEG in an immediate vicinity of a subsea production site, the system comprising a collapsible flexible bag and; - at least one charge conduit providing a MEG conduit path between a topside positi...  
WO/2016/205956A1
A wash nozzle assembly for comprising a cylindrical nozzle body component having a proximal end with a demountable coupling device for engaging a supply of high-speed fluid, and a distal end; a cylindrical nozzle tip component having a p...  
WO/2016/207359A3
The present invention a subsea storage of MEG in an immediate vicinity of a subsea production site, the system comprising a collapsible flexible bag (31) and; - at least one charge conduit (32) providing a MEG conduit path between a tops...  
WO/2016/203119A1
The present invention relates to a method for detecting and quantifying additives in a complex aqueous fluid, and in particular a method for detecting an inhibitor of mineral deposition or corrosion, injected in a gas or oil well. The in...  

Matches 1 - 50 out of 948