Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 1 - 50 out of 8,860

Document Document Title
WO/2018/185367A1
The present description is related to novel mannanases, compositions comprising mannanase, to methods for producing mannanases and to methods of using mannanases to degrade and modify mannan containing material.  
WO/2018/185510A1
The present invention relates to method for assessing the H2S release capacity of a liquid sample containing one or more sulfur compounds which are able to be degraded into gaseous H2S with temperature, said method comprising the followi...  
WO/2018/187563A1
A hydrocarbon formation treatment micellar solution fluid and its use in treating underperforming hydrocarbon formations is described and claimed. A hydrocarbon formation treatment micellar solution fluid wherein the micellar solution fl...  
WO/2018/186840A1
Systems, methods, and compositions for creating microfractures within subterranean formations and delivering microproppant particles into microfractures within subterranean formations are provided. In some embodiments, the methods includ...  
WO/2018/187565A1
The present application describes compositions and methods for the controlled delivery of acid to a desired location, for instance to a subterranean formation.  
WO/2018/186827A1
Provide are methods and systems for inhibiting corrosion of a metal surface. An example method comprises providing a treatment fluid comprising an aqueous carrier fluid and a polyhydroxyetheramine corrosion inhibitor; contacting the meta...  
WO/2018/185037A1
The present invention relates to the use of a combination of block polymers and particular compositions in a fluid injected under pressure into an oil-bearing rock, where: the fluid comprises solid particles and/or is brought into contac...  
WO/2018/187550A1
A brine resistant silica sol is described and claimed. This brine resistant silica sol comprises an aqueous colloidal silica mixture that has been surface functionalized with at least one moiety selected from the group consisting of a mo...  
WO/2018/186733A1
The present invention provides a method of consolidating a subterranean formation which comprises particles, comprising selecting a subterranean formation in need of consolidation, contacting the particles with a cationic polymer and the...  
WO/2018/185366A1
The invention discloses a recombinant polypeptide having mannanase activity, methods for its production, a recombinant host cell producing mannanase, and it's uses in detergents, mannan degradation, feeds and oil drilling.  
WO/2018/183014A1
Readily water-miscible beta-glucan suspensions and methods of making and using the same. A readily water-miscible beta-glucan suspension includes a beta-glucan and a water-miscible organic fluid that comprises an alcohol, an alpha-hydrox...  
WO/2018/183241A1
Described herein are methods for treating a subterranean formation penetrated by a wellbore with a retarded acidizing fluid containing an acid and an acid retarding agent, the concentrations of which are adjusted based on measured parame...  
WO/2018/183357A1
This invention relates to methods for delivering water reactive chemicals, such as alkali metal silicides, metal silicides, and mixtures thereof, to subterranean reservoirs in order to increase the amount of crude oil that can be extract...  
WO/2018/183259A1
Compositions including beta-glucans and enzymes, reaction products thereof, and methods of making and using the same, such as for treatment of subterranean formations. An aqueous composition includes a starting material beta-glucan and a...  
WO/2018/183637A1
A synergistic microbicidal composition comprising a hydroxymethyl-substituted phosphorus compound and nitrate, a method for inhibiting the growth of microorganisms in an aqueous medium.  
WO/2018/183462A1
Beta-glucan compositions and methods of making and using the same, such as for treatment of a subterranean formation. A beta-glucan composition includes a beta-glucan and water. Shearing the beta-glucan composition at a shear rate of up ...  
WO/2018/183157A1
Consolidating sand in a subterranean formation includes decreasing a viscosity of a petroleum product to yield a consolidating material, providing the consolidating material to the subterranean formation, and consolidating sand in the su...  
WO/2018/177619A1
This invention provides a fracturing fluid comprising i) 85 wt.-% or more of an aqueous carrier fluid as continuous phase, ii) 0.001 to 1.5 wt.-% of a first wax inhibitor being dispersed in the carrier fluid, the wax inhibitor being sele...  
WO/2018/176532A1
A cross-linking agent, a full suspension fracturing fluid and a preparation method thereof in the technical field of oil field development. The cross-linking agent is mainly prepared from the following components in parts by weight: 6-12...  
WO/2018/182444A1
The method being proposed makes it possible to optimize a plan (design) for hydraulic fracturing taking into account two-dimensional modeling of transfer processes in a hydraulic fracturing fracture. Devising a plan for hydraulic fractur...  
WO/2018/175515A1
A coated article, such as a proppant, includes a base substrate and one or more polyurethane based coatings on an outer surface of the base substrate. The one or more polyurethane based coatings including the reaction product of an isocy...  
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...  
WO/2018/174842A1
A method of cementing a wellbore comprises injecting into the wellbore a cement slurry comprising an aqueous carrier, a swellable nanoclay, and a solid delayed releasing divalent inorganic salt comprising calcined magnesium oxide, calcin...  
WO/2018/171812A1
A fracture cave-type reservoir oil/water selective self-expanding rubber plugging agent, a preparation method therefor, and an application thereof. The plugging agent comprises the following raw materials, in parts by weight: 100 parts o...  
WO/2018/175142A1
A resin coated proppant capable of self-bonding at temperatures as low as 70° F0° (∼21° C) is made from an aqueous dispersion of a self-bonding vinyl aromatic/acrylic ester addition copolymer.  
WO/2018/168530A1
Provided is a lost circulation material capable of temporarily sealing wide fractures even in a high temperature environment. Specifically provided is a lost circulation material for sealing the walls of a well, wherein the lost circulat...  
WO/2018/170065A1
A method of extracting hydrocarbons from a wellbore formed in a subterranean rock formation. The wellbore includes at least one fracture extending therefrom. The method includes forming a particle-free treatment fluid that includes an un...  
WO/2018/169654A1
Methods for producing a swellable packer in a downhole environment are provided. A method includes introducing a treatment fluid containing a polymeric composition into a wellbore within the downhole environment and exposing the polymeri...  
WO/2018/169938A1
Treating carbon steel tubing includes contacting the carbon steel tubing with a first treatment solution including a salt; corroding the carbon steel tubing with the salt to yield a corroded surface on the carbon steel tubing; contacting...  
WO/2018/170305A1
The present invention provides a method and a composition for eliminating or reducing the effects of loss of circulation events. In particular, the present invention provides a fiber-based loss of circulation material which seals fractur...  
WO/2018/170094A1
A catalytic proppant and methods for making and using same are disclosed herein. The catalytic proppant can include a proppant support containing silica and alumina. The proppant support can have a macropore concentration of about 15% to...  
WO/2018/170312A1
Compositions for suspending proppants in a hydraulic fracture of a subterranean formation involve a carrier fluid, a plurality of proppants, and a plurality of compressible, three-dimensional anti-settling agents. A method of using the c...  
WO/2018/168529A1
Provided is a lost circulation material capable of temporarily sealing fine pores even in a high temperature environment. This lost circulation material is a powder of a resin composition which includes a polyurethane resin. The polyuret...  
WO/2018/165256A1
A method of monitoring conditions in a wellbore (10) by disposing capsules (32) with a signaling agent downhole, and monitoring the presence of the signaling agent released from the capsules (32) that escape the wellbore (10). The capsul...  
WO/2018/165242A2
Capsules (26) with a cement additive covered by a polymeric outer shell (24) are added to wellbore cement (28). The additive is released from the shells (24) by osmosis or when the shell (324) ruptures. Capillary forces draw the additive...  
WO/2018/165496A1
Disclosed here compositions and methods suitable for injection of a nanosurfactant-containing fluid into a hydrocarbon-bearing formation for enhanced recovery operations. Embodiments of the composition contain a petroleum sulfonate surfa...  
WO/2018/164663A1
A downhole treatment fluid made up of a binding composition and a proppant, the binding composition including an aluminosilicate source, a metal silicate, an alkali metal activator. The binding composition may form a coated particulate o...  
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...  
WO/2018/157954A1
The present invention relates to a modified red mud/a modified bauxite residue and also to processes for the production thereof and to a storage medium comprising a modified red mud, to a heat storage means comprising a storage medium an...  
WO/2018/160259A1
A method, system, and apparatus for using and testing chemically tagged drilling fluid additives. In one embodiment, the method comprises: circulating a drilling fluid in a wellbore, wherein the drilling fluid comprises a chemically tagg...  
WO/2018/160156A1
The invention relates to the field of oil production. The technical result is an increase in formation permeability and well flow rate. In a method for exerting a combined effect on the near-wellbore region of a producing formation, the ...  
WO/2018/160260A1
Provided are compositions, methods, and systems that relate to use of viscoelastic surfactant gels in well perforation. A method for well treatment comprising: introducing a viscoelastic surfactant gel into a wellbore; and forming one or...  
WO/2018/160611A1
The present invention generally relates to the use of aryl sulfonium salts for lowering sulfide concentrations and for preventing growth of microbes in a water injection system, a hydrocarbon extraction system, or a hydrocarbon productio...  
WO/2018/157615A1
The present invention provides a low density, high strength and degradable temporary blocking agent, a preparation method therefor and use thereof. The temporary blocking agent comprises 60 wt% - 85 wt% of polyactic acid, 5 wt% - 20 wt% ...  
WO/2018/160253A1
Methods for using cement compositions in subterranean formations are provided. In some embodiments, the methods comprise introducing a first treatment fluid comprising a first base fluid and a metal oxide into a wellbore penetrating at l...  
WO/2018/160265A1
A lost circulation composition includes at least one viscoelastic surfactant that can self-assemble into entangled worm-like micellar structures, increasing the viscosity of the composition at low shear rates. The entanglements of the wo...  
WO/2018/160995A1
The present invention provides environmentally-friendly compositions and methods for degrading polymers used in fracking operations to enhance the recovery of oil and gas. Specifically, the compositions and methods utilized microorganism...  
WO/2018/160396A1
Compositions and methods for treating a downhole environment are provided. The method includes introducing a treatment solution containing a cyclic orthoester and brine into a wellbore within the downhole environment and hydrolyzing the ...  
WO/2018/160476A1
Methods for separating fluids with a barrier pill within a downhole environment are provided. The method includes introducing a barrier pill fluid into the wellbore containing a first fluid to form the barrier pill on top of the first fl...  
WO/2018/160068A1
A method of assessing the effect of a production chemical on the stability of a water and oil emulsion, the emulsion comprising the production chemical, is provided. The method comprises: applying a potential difference across the emulsi...  

Matches 1 - 50 out of 8,860