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WO/2018/182453A1 |
The group of inventions relates to the oil and gas production industry, and more particularly to cleaning the near-wellbore region of a horizontal well and also existing filters, as well as to stimulating oil production. The present meth...
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WO/2018/175975A1 |
Described herein are coated lift plungers, which have improved hardness, durability, and corrosion resistance, as well as methods of making, reworking, and using the same.
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WO/2018/175862A1 |
Mitigating corrosion and surface scale formation in a sour gas well includes providing an oil-based liquid to a sour gas well having carbon steel tubing (112) with iron sulfide on a surface of the carbon steel tubing (112), contacting th...
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WO/2018/170468A1 |
An electric submersible pump (ESP) is coupled with a spaced apart debris removal assembly that is independently supported from a retrievable packer. The debris removal assembly is modular and retains the captured debris for subsequent re...
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WO/2018/162891A1 |
A method for inhibiting the formation or agglomeration of gas hydrates in a system, said method comprising adding to the system a compound of formula (I) or a zwitterionic form thereof wherein R1 is a group comprising 4 to 28 carbon atom...
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WO/2018/157144A1 |
Apparatus and methods for penetrating a downhole target within a wellbore include providing a body with a longitudinal axis, a first end, and a second end into a wellbore, the body having a nozzle at the first end. The nozzle is adapted ...
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WO/2018/137737A1 |
The aim of the invention is to devise a device and an associated method for reliably removing at low cost ferric or other incrustations, deposits and biofilms present in the systems parts of existing open fluid systems such as well syste...
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WO/2018/117854A1 |
The invention relates to a method of cleaning a production tubing (10) in a producing petroleum well. The method comprises steps of: i) providing a collection tool (100) that configured for both selectively collecting debris (90) while r...
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WO/2018/111837A1 |
Systems and methods for decreasing a size of debris entering an electrical submersible pump assembly in a subterranean well with a debris handling assembly include a handler housing with an inner bore and a housing cutting profile locate...
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WO/2018/106121A1 |
An apparatus (1) for collecting debris from a wellbore and a method for collecting and bringing debris out from a well, the apparatus (1) comprises a pipe (3) having a first end portion (5) and a second end portion (7) for connecting to ...
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WO/2018/106835A1 |
A skid-mounted chemical and hydrate remediation system including a subsea separator is described for use in the event of a hydrate plug with chemical injection. This system comprises a manifold which communicates between a subsea pipelin...
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WO/2018/101929A1 |
The present disclosure provides a composition for use in drilling fluids comprising an adsorbing substrate that is loaded with a hydrophobic liquid. In one aspect, the hydrophobic liquid comprises a base oil, an emulsifier, a rheology mo...
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WO/2018/093299A1 |
The group of inventions relates to the oil-and-gas extraction industry, in particular to equipment for removing deposits of asphaltenes, resins, paraffins, hydrates, calcium salts, etc. from tubing strings of oil and gas wells without ex...
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WO/2018/094119A1 |
A method of preventive well maintenance with pumping equipment in the well for well rehabilitation using CO2 with varying lengths of producing intervals utilizing varying methods to deliver cleaning energy and varying porosity of aquifer...
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WO/2018/067182A1 |
A system and method for deployment of an isolation seal assembly wherein an isolation seal assembly is releasably attached to a reverse circulation debris removal tool. The system includes a debris removal tool having a head with an elon...
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WO/2018/064115A1 |
A liquid injection system includes a motive fluid pump (20) that is adapted to supply a pressurized motive fluid (23, 25), at least one source (40) of a liquid (41), and at least one liquid injection pump (22) that is adapted to receive ...
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WO/2018/063006A1 |
A method for plugging a subterranean well (6), comprising the steps: running a perforating tool (1) into the subterranean well and positioning the perforating 5 tool in a well section (L) to be plugged; operating the perforating tool to ...
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WO/2018/057960A1 |
A downhole motor-pump assembly disposed within a tubular string includes a rotor and a stator. The rotor has a first rotor portion and a second rotor portion. The first rotor portion has a first geometrical shape and the second rotor por...
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WO/2018/057418A2 |
A method of automatically washing a well casing of a progressing cavity (PC) pump system. The method includes disabling, via a controller, a normal speed control of a progressing cavity (PC) pump of the PC pump system, and closing, via t...
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WO/2018/057417A1 |
An automated wash system for use with a progressing cavity (PC) pump system. The automated wash system includes a wash fluid source and a wash valve. The wash valve is in fluid communication with the wash fluid source and an annulus of a...
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WO/2018/052857A1 |
A downhole tool for sand fall-back prevention can include a sand bridge inducer configured to be mounted in a flow path through a housing in a downhole tool. The sand bridge inducer can define a longitudinal axis and having a main openin...
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WO/2018/026370A1 |
A wellbore unloading arrangement for removal of debris from a wellbore. The unloading arrangement includes an unloading bottom hole assembly which can inject both nitrogen and a liquid as well as draw debris into a flowbore for transmiss...
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WO/2018/021992A1 |
Disclosed is flow reversal system (100) that comprises a single direction flow device (101) adapted for receiving a fluid and first (120), second (122), third (124) and fourth (126) binary valves. The system is adapted to be configured i...
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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...
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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...
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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...
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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 ...
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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...
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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 ...
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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...
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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...
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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...
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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.
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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...
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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....
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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. ...
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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...
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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...
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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...
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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...
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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...
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