Patents for Class 507/100

Matches 1 - 50 out of 78	1 2 >

Document	Document Title
8105984	Reduced abrasion drilling fluid A reduced abrasion drilling fluid system and method of drilling a borehole by circulating the reduced abrasion drilling fluid through the borehole is disclosed. The reduced abrasion drilling fluid comprises a drilling fluid, a first addi...
8097442	Laccases, nucleic acids encoding them and methods for making and using them The invention provides laccases, polynucleotides encoding these enzymes, the methods of making and using these polynucleotides and polypeptides.
8048829	Spotting fluid compositions and associated methods Fluids and associated methods useful in subterranean applications are provided. Compositions are provided that may be useful in subterranean applications for addressing, among other things, drill string sticking problems. More particular...
8048828	Spotting fluid compositions and associated methods Fluids and associated methods useful in subterranean applications are provided. More particularly, methods of reducing drill string sticking are provided, which include: providing a spotting fluid composition comprising a water insoluble...
8022014	Deep eutectic solvents and applications A method of solubilizing/removing cellulose or chemically-modified cellulosic polymers utilized in subterranean drilling operations such as fracturing. The method involves introducing a deep eutectic solvent (DES) into a subterranean reg...
7977280	Process for minimizing breaking of emulsion type drilling fluid systems, emulsion type drilling fluid systems, and spotting fluids A process for minimizing breaking of an emulsion type drilling fluid system comprising one or more fibrous lost circulation material, the process comprising: determining the water retention value of one or more candidate fibrous lost cir...
7935662	System, method, and apparatus for injection well clean-up operations A method for removing drilling damage from a formation in a wellbore that has not been produced includes injecting a chemical-acting cleanup fluid and contacting it with a filtercake on a face of a formation of interest for a period of t...
7879768	Drilling fluid composition comprising hydrophobically associating polymers and methods of use thereof The present disclosure relates to drilling fluids for use in bitumen recovery from oil sands. In particular, the disclosure relates to a drilling fluid composition containing hydrophobically associating polymers which encapsulate the bit...
7727940	Silicone-tackifier matrixes and methods of use thereof In one embodiment, the present invention provides a silicone-tackifier matrix composition that comprises at least one silicone polymer component, at least one tackifying agent, and at least one curing agent and/or at least one cross link...
7696133	Geosynthetic composite for borehole strengthening Disclosed is a composition comprising a chemical formulation useful for creating geosynthetic composites in-situ, which includes a reactive ester having at least one carbon-carbon double bond, preferably a vinyl ester of a C9 to C11 vers...
7580797	Subsurface layer and reservoir parameter measurements Method and system for determining a characteristic of a subsurface formation traversed by a wellbore. A fluid flow rate in the wellbore is established, the flow being associated with fluid movement in one or more layers in the formation....
7576038	Well drilling fluids Clay is stabilized in the drilling of wells and other formation treatment for hydrocarbon production by the addition to the drilling or other fluid of potassium formate together with a cationic formation control additive.
7470419	Granules of powdery mineral and method for production of granules The present application relates to granules of powdery mineral particles produced by spray granulation of a liquid slurry comprising powdery minerals particles having particle size below 10 m, at least one water-reducing agent and/or at ...
7452417	Downhole servicing compositions having high thermal conductivities and methods of using the same A downhole servicing composition comprising from about 15 percent to about 80 percent by weight of a clay, and from about 10 percent to about 75 percent by weight of a carbon source is disclosed. The invention includes a downhole servici...
7449431	Additive for increasing the density of a fluid for casing annulus pressure control A method of controlling the pressure of a casing annulus in a subterranean well that includes injecting into the casing annulus a composition including a base fluid and a polymer coated colloidal solid material. The polymer coated colloi...
7067004	Grout compositions having high thermal conductivities and methods of using the same Grout slurries are provided that have high thermal conductivities of greater than about 1.4 Btu/hr-ft-° F. and low hydraulic conductivities ranging from about 5×10−9 cm/s to about 1×10−8 cm/s. Such grout slurries comprise water an...
7056869	Hydrocarbon fluids Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235° C. to 400° C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic cont...
7049436	Carbon dioxide compatible non-aqueous crosslinked fracturing fluids and methods for their use Alcohol based hydraulic fracturing fluids useful for treating oil and gas wells are disclosed. The fluids are compatible with carbon dioxide, and comprise an alcohol, a polymer, a crosslinking agent, and a breaker. Hydroxypropyl guar wit...
7030064	Bentonite nodules Compressed bentonite-containing nodules are disclosed as are methods for their production and methods for using them to plug wells.
6818594	Method for the triggered release of polymer-degrading agents for oil field use Disclosed are methods and related compositions for altering the physical and chemical properties of a substrate used in hydrocarbon exploitation, such as in downhole drilling operations. In a preferred embodiment a method involves formul...
6613720	Delayed blending of additives in well treatment fluids The effect of various chemical or biological agents in well treatment fluids can be delayed by sequestering the agents in the discontinuous phase of an emulsion for a period of time, before the emulsion is destabilized by exposure to at ...
6586372	Additive for increasing the density of a fluid and fluid comprising such additive An additive which increases the density of wellbore fluids used during the construction or repair of oil, gas, injection, water or geothermal wells comprises solid colloidal particles of weight average particle diameter (D50) of less tha...
6562763	Method and apparatus for homogenizing drilling fluid in an open-loop process A drilling fluid homogenizer and method of homogenizing drilling fluid which produce a non-clogging homogenized drilling fluid at a high throughput, in an open-loop process. The non-clogging homogenized drilling fluid is capable of being...
6462096	Organophilic clay additives and oil well drilling fluids with less temperature dependent rheological properties containing said additives Conventional organophilic clays, when used as rheological additives in oil based invert muds, display marked viscosity loses in the mud when these muds are heated much above 350° F., whereas muds prepared according to the present invent...
6399544	High solids bentonite slurries and method for preparing same Pumpable and flowable bentonite clay slurries having a bentonite solids content of about 50% or greater have been prepared for the first time through the use of a non-aqueous fluidizing agent, characterized by being a highly-saturated hy...
6337308	Method and apparatus for homogenizing drilling fluid in an open-loop process A drilling fluid homogenizer and method of homogenizing drilling fluid which produce a non-clogging homogenized drilling fluid at a high throughput, in an open-loop process. The non-clogging homogenized drilling fluid is capable of being...
6284714	Pumpable multiple phase compositions for controlled release applications downhole Pumpable multiple phase compositions for carrying agents and components downhole and controllably releasing them by breaking the suspensions are described. The multiple phase composition may have an external or third phase, which in turn...
5888943	Drilling compositions and methods The materials include non-polyampholite crosslinked polymers and gels based on a polymer which in uncrosslinked form is substantially soluble in ionic fluids and substantially insoluble in water. The materials change their state of hydra...
5837654	High temperature environmentally benign drilling fluid, and viscosifying additives for use therewith An oil base environmentally benign drilling fluid composition having a stable high viscosity and high gel strength at use temperatures of up to at least 450° F. The drilling fluid includes a low toxicity biodegradable oil vehicle, and a...
5798319	High stability and low metals esters based on 3,5,5-trimethyl-1-hexanol A lubricant which is prepared from at least one synthetic ester composition exhibiting thermal and oxidative stability which comprises the reaction product of 3,5,5-trimethyl-1-hexanol and an acid or anhydride; and a lubricant additive p...
5785747	Viscosification of high density brines The present invention provides compositions useful for viscosifying aqueous fluids, methods for making them and methods for using them. In one aspect of the invention, inventive compositions comprise a prehydrating alcohol having at leas...
5776865	Emulsifiable oil Emulsifiable oil, suitable for use as oil phase in oil-based drilling fluids, having one or more ketones with a flashpoint of at least 55° C., in particular oligoketones obtainable by co-oligomerization of carbon monoxide and olefins.
5652200	Water based drilling fluid additive and methods of using fluids containing additives An additive for a water-based fluid which is to be used when the likelihood of differential sticking is high and which reduces the sticking tendency of the fluid and mud cake. An additive according to the invention comprises a well dispe...
5570743	Continuous multi-component slurrying process at oil or gas well A continuous multi-component slurrying process at an oil or gas well comprises flowing at least three separate streams of different essential materials directly into a predetermined mixing unit at the oil or gas well, wherein each of the...
5554721	Acid catalyzed process for preparing amino acid polymers The present invention relates to an acid catalyzed thermal polycondensation process for producing amino acid polymers. More specifically, amino acid polymers are produced by thermally condensing a mixture of one or more amino acids and o...
5522459	Continuous multi-component slurrying process at oil or gas well A continuous multi-component slurrying process at an oil or gas well comprises flowing at least three separate streams of different essential materials directly into a predetermined mixing unit at the oil or gas well, wherein each of the...
5518996	Fluids for oilfield use having high-solids content The particulate phase of fluids according to the present invention comprises particles which have specifically adapted size ranges or granulometries. All the essential properties of fluids and their cost are very clearly improved. The te...
5426079	Method of improving water-swellable clay properties by re-drying, compositions and articles A method of treating a water-swellable clay, initially having a Fe+3 /Fe+2 ratio of at least 1.0, preferably at least 3.0, and most preferably in the range of about 5.0 to about 15.0, after the clay has been mined and dried. After the co...
5318953	Method of improving water-swellable clay properties by re-drying, compositions and articles A method of treating a water-swellable clay, initially having a Fe+3 /Fe+2 ratio of at least 1.0, preferably at least 3.0, and most preferably in the range of about 5.0 to about 15.0, after the clay has been mined and dried. After the co...
5312807	Method of improving absorption of salt water by water-swellable clay by redrying A method of treating a water-swellable clay after the clay has been mined and dried to improve its properties when in contact with salt-contaminated water. After the common initial drying of the clay to a moisture content of 12% by weigh...
5076852	Cementing oil and gas wells A cement method and composition for cementing a well penetrating subterranean formations and aqueous based drilling fluid containing at least one cement retarder characterized by a major proportion of the drilling fluid from the well as ...
5075033	Processes for preparing organophilic clay gellants An improved organophilic clay gellant which is the reaction product of a smectite-type clay, an organic cation and, optionally, an organic anion. The cation from the smectite-type clay, the anion from the organic cation and, if present, ...
5004553	Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor The invention provides well working fluid compositions containing oat hulls ground to certain particle size ranges to decrease the seepage loss of the fluid to fluid permeable formations contacted by the compositions. Also provided is a ...
4956160	Process for removal of hydrogen sulphide using specific iron oxides Hydrogen sulphide is removed (for example from drilling muds) using porous iron oxides which consist to the extent of at least 80% by weight of Fe3 O4 and in which at least 10% of their pore volume is in the form of pores of diameters in...
4888120	Water-based drilling and well-servicing fluids with swellable, synthetic layer silicates Synthetic swellable layer silicates corresponding to the following formula MgO.aMA.bAl2 O3.cSiO2.nH2 O (I)in which M is Na+ and Li+ having an Na:Li ratio of at least 1; A is F-, OH- or 1/2O2- or a mixture thereof; a is 0.1 to 0.6; b is 0...
4498995	Lost circulation drilling fluid A drilling mud, or other drilling fluid containing particulate expanded aggregates is effective to seal the fractures and openings and prevent lost circulation of the mud or fluid in a well. The expanded aggregates used are inorganic cla...
4462470	Extrusion of bentonite clay for fluid loss reduction in drilling fluids The fluid loss and viscosity loss characteristics of a water expandable bentonite clay are substantially improved by extruding the clay through die openings while, at the same time, passing a wiper or scraping blade across the entrance o...
4460052	Prevention of lost circulation of drilling muds A method of sealing fractures and openings in an earth formation traversed by a well bore comprises adding particulate expanded aggregates to a drilling mud, or other drilling fluid, circulating through the well bore, which aggregates se...
4422855	Method of thickening solutions using normally nongelling clays Normally nongelling montmorillonite clay is treated to have gelling characteristics by drying the clay to 10 to 15 percent free moisture and grinding the clay to at least 100 percent finer than 45 microns. To thicken an aqueous solution,...
4411530	System and method for rapid beneficiation of Bentonite clay A system and method for rapid beneficiation of bentonite clay is disclosed. Beneficiation of the bentonite clay occurs through oxidation of structural ferrous iron. For rapid beneficiation, bentonite clay, preferably ground, is subjected...

Matches 1 - 50 out of 78	1 2 >