Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7441609 | Method of decreasing the disintegration of shale-containing cuttings and drilling fluid therefor The invention provides a method of enhancing the recovery of shale-containing cuttings during the drilling of a borehole in a shale-containing subterranean formation which comprises adding to the drilling fluid circulating in the borehole a finely ground, very spari... | 10/28/2008 |
| 7384892 | Water-based drilling fluids A water-based drilling fluid composition includes water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient of polymeric additive, inorganic salts, dispersants, shale stabilizers, weighting agents, or finely divided ... | 06/10/2008 |
| 7246665 | Methods of using settable compositions in a subterranean formation The present invention relates to settable compositions that comprise magnesium oxide and at least one divalent salt and associated methods of use. In some embodiments, the present invention discloses methods of a forming a hardened mass comprising providing a settab... | 07/24/2007 |
| 7199083 | Self-generating foamed drilling fluids Self-generating foamed fluids for circulation through a well during drilling operations and methods for circulating such self-generating foamed drilling fluids are provided for. The drilling fluid comprises an aqueous solvent, a polymer, a surfactant, a first foam g... | 04/03/2007 |
| 7196039 | Methods of reducing fluid loss in a wellbore servicing fluid Methods of reducing the fluid loss from a wellbore servicing fluid include combining a terpolymer with the wellbore servicing fluid to reduce the fluid loss from the fluid, followed by displacing the fluid into a wellbore. In an embodiment, the following monomers ar... | 03/27/2007 |
| 7137459 | Silicate drilling fluid and method of drilling a well therewith The invention discloses methods of formulating an alkali metal silicate-containing drilling fluid and drilling a well therewith. Thus an alkali metal silicate is added to an aqueous base drilling fluid, when the drilling fluid is being circulated while drilling, at ... | 11/21/2006 |
| 7094738 | Phospholipid lubricating agents in aqueous based drilling fluids A method of improving the lubricity of an aqueous based drilling fluid composed of an aqueous base fluid, and a weighting agent. The method involves the addition of an effective amount of a phospholipid to substantially reduce the coefficient of friction when compar... | 08/22/2006 |
| 7086466 | Use of substantially hydrated cement particulates in drilling and subterranean applications The present invention relates to substantially hydrated cement particulates. More particularly, the present invention relates to compositions comprising substantially hydrated cement particulates and associated methods of use in drilling and subterranean application... | 08/08/2006 |
| 7028771 | Hydrocarbon recovery Low concentrations, 1–10% of potassium salt, especially potassium formate, are used in a drilling fluid in oil production. Preferably they are used with guar derivatives, most preferably carboxymethyl hydroxypropyl guar. The concentration of potassium formate is m... | 04/18/2006 |
| 7022652 | Compositions and methods for treating subterranean formations A solution containing a compound having the general formula XF.nH2O2, wherein X is K+, Na+ or NH4+ and n is an integer from 1 to 3 (e.g., a peroxysolvate of potassium fluoride compound such as potassi... | 04/04/2006 |
| 6921742 | 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 fluid of potassium formate together with a cationic formation control additive. ... | 07/26/2005 |
| 6897186 | Composition and method for dual function soil grouting excavating or boring fluid An excavation fluid composition useful for enlarging a cavity in the earth includes a synthetic polymer and sodium silicate. The excavation fluid composition is formulated so as to enable the fluid in contact with unstable or sandy soils in the selected areas of the... | 05/24/2005 |
| 6852675 | Nutrient source for marine organisms from drilling fluids additives A nutrient source for marine organisms comprising: drilling fluids containing organic contaminants; a solidification agent; a cell transport agent; and a cellulosic additive. ... | 02/08/2005 |
| 6818596 | Dry mix for water based drilling fluid A drilling fluid or mud having several components, including leonardite (humic acid); potassium acetate; partially hydrolyzed polyacrylamide (PHPA); polyanionic cellulose polymer (PAC); sulfonated asphalt; sulfoalkylated tannin; polystyrene maleic anhydride copolyme... | 11/16/2004 |
| 6818595 | Drilling fluids containing an alkali metal formate A drilling fluid or mud is described wherein the drilling fluid contains at least one alkali metal formate or monovalent carboxylic acid salt. The drilling fluid preferably further contains at least one emulsifier or surfactant and at least one hydrocarbon-based flu... | 11/16/2004 |
| 6809067 | Composition for oil and gas drilling fluids with solidification agent, cell transport agent and cellulosic additive A composition for oil and gas drilling fluids containing organic contaminants comprising: a solidification agent; cell transport agent; a cellulosic additive; and wherein said composition comprises enough solidification agent to enable the solidification agent to el... | 10/26/2004 |
| 6800592 | Polymer-enhanced foamable drilling fluid A foamable drilling fluid is provided which includes an aqueous solvent; a surfactant; and a polysaccharide preferably derived from a galactomannan gum. The foamed drilling fluid includes a liquid phase consisting of the aqueous solvent, polysaccharide and surfactan... | 10/05/2004 |
| 6797675 | Composition for oil and gas drilling fluids with solidification agent and cellulose additive A composition and method for treating oil and gas drilling fluids containing organic contaminants comprising: a solidification agent and a cellulosic additive; and wherein the composition comprises enough solidification agent to enable the solidification agent to el... | 09/28/2004 |
| 6797676 | Composition for oil and gas drilling fluids containing organic compounds A composition and method for treating oil and gas drilling fluids containing organic contaminants comprising: a solidification agent, and a cell transport agent; wherein the composition comprises enough solidification agent to enable the solidification agent to elec... | 09/28/2004 |
| 6762154 | Viscoelastic surfactant fluids stable at high brine concentrations Present invention relates to high brine carrier fluid, said carrier fluid selected from the group consisting of organic acids, organic acid salts, inorganic salts and combination of one or more organic acids or organic acid salts, a co-surfactant and an amount of a ... | 07/13/2004 |
| 6746992 | High density thermally stable well fluids High density, thermally stable, brine-based well fluids and methods of using the same are disclosed. In one embodiment a well fluid including water and a salt, the salt including at least one formate salt, wherein the weight-to-volume ratio of the well fluid is with... | 06/08/2004 |
| 6716799 | Use of selected fatty alcohols and their mixtures with carboxylic acid esters as lubricant components in water-based drilling fluid systems for soil exploration The invention relates to the use of linear and/or branched fatty alcohols containing at least 12 carbon atoms in the molecule and/or to the use of mixtures of such fatty alcohols with carboxylic acid esters as a lubricating additive in water-based drilling fluids fo... | 04/06/2004 |
| 6642183 | Lubricating method for silicate drilling fluids Improved silicate drilling fluids are produced by the addition of tetra alkyl ammonium compounds, in particular tetra methyl ammonium hydroxide to silicate drilling fluid mud to lower the co-efficient of friction between drill string and wellbore. It has ... | 11/04/2003 |
| 6372694 | Suspensions with high storage stability, comprising an aqueous silicate solution and a filler material Suspension, having a high storage stability, comprising an aqueous silicate solution and a filler material, wherein the silicate solution has a silicate content of at least 20% by weight, the filler material has an average particle size of 0.8 to 15 μm a... | 04/16/2002 |
| 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 has a first pumpa... | 09/04/2001 |
| 6258756 | Salt water drilling mud and method A salt water drilling mud comprising a mixture salt water, a solid phase such as pre-hydrated bentonite, attapulgite, sepiolite, and extended bentonite, among others and optionally a synthetic oil, which is mixed with at least one of five different module... | 07/10/2001 |
| 6258755 | Chitosan-containing well drilling and servicing fluids Disclosed are a process for the preparation of pseudoplastic, shear thinning chitosan-containing fluids, and a method of enhancing the thermal stability of such fluids. Pseudoplastic fluids useful oil and/or gas wells, particularly drilling fluids, drill-... | 07/10/2001 |
| 6248698 | Synergistic mineral blends for control of filtration and rheology in silicate drilling fluids A silicate drilling fluid having effective rheology and filtration control properties comprising water as a continuous phase wherein hematite is used as a weighting agent and manganese oxide is used as a bridging agent. The drilling fluids uses a minimal ... | 06/19/2001 |
| 6239081 | Alkali-metal-carboxylate-containing drilling fluid having improved corrosion properties The present invention relates to water-based drilling fluids having decreased corrosion properties which comprise, in addition to alkali metal carboxylates, boron compounds and, if appropriate, clays, polymers and coinhibitors.... | 05/29/2001 |
| 6143698 | Method for removing filtercake A method for removing filtercake from a subterranean borehole comprising drilling the borehole with a drilling fluid that includes additives to form a filtercake having an oxidation-degradable component, preferably a polysaccharide. The filtercake is cont... | 11/07/2000 |
| 6017856 | Well servicing fluids The invention relates to an aqueous well servicing fluid comprising in solution a potassium formate characterized in that said solution contains in addition potassium citrate. The potassium citrate, which can be added as a solid to a potassium formate sol... | 01/25/2000 |
| 5925598 | Water-based drilling fluid for use in shale formations A water-based drilling fluid for use in shale formations having a given average pore size has solutes dissolved therein sized so as to allow the pores of the shale formations to at least partially restrict the solutes. For purposes of enhancing the restri... | 07/20/1999 |
| 5821203 | Foamed drilling fluids, their process for preparation and the corresponding drilling method The present invention is directed to an aqueous foamed Drilling Fluid for drilling well bores into a subterranean formation, comprising water, at least one clay and at least one foaming agent. According to the invention, it further comprises at least one ... | 10/13/1998 |
| 5804535 | Well drilling and servicing fluids and methods of increasing the low shear rate viscosity thereof A well drilling and servicing fluid comprising a brine having dissolved therein a formate salt selected from the group consisting of potassium formate, cesium formate, and mixtures thereof, a biopolymer viscosifier, and a pre-gelatinized amylopectin deriv... | 09/08/1998 |
| 5723416 | Well servicing fluid for trenchless directional drilling Disclosed is a composition comprising a water swellable clay, and particularly a sodium montmorillonite clay such as bentonite, sodium carbonate, and a water-soluble biopolymer, and particularly a xanthan biopolymer. The composition when mixed with fresh ... | 03/03/1998 |
| 5629271 | Methods of reducing fluid loss and polymer concentration of well drilling and servicing fluids The invention provides methods for (1) reducing the fluid loss of and (2) reducing the concentration of polymer required to provide a desired degree of fluid loss control to, a well drilling and servicing fluid which contains at least one polymeric viscos... | 05/13/1997 |
| 4967838 | Oil well and method using completion fluid Disclosed is a method of preventing fluids in the ground from rising around an oil well pipe by filling the space around the pipe with an oil well completion fluid comprising water, about 50 to about 65% by weight, based on total fluid weight, of dipotass... | 11/06/1990 |
| 4440649 | Well drilling and completion fluid composition An improved well drilling and completion fluid composition which has excellent stability over a broad temperature range, has a low tubular goods corrosion rate, prevents the sloughing of clay-containing materials and is environmentally acceptable. The com... | 04/03/1984 |
| 4242140 | Activation of clays by compaction A method for improving the physical properties of a platey-type clay, which comprises first adding about 1-10% by weight of an activator substance, such as sodium carbonate, sodium hydroxide, lithium carbonate, lithium hydroxide, zinc sulfate, or nickel c... | 12/30/1980 |
| 4000076 | Drilling mud having reduced corrosiveness A phosphate added to a drilling mud, e.g., a drilling mud containing a pitting-type or other corrosion producing component such as potassium chloride, significantly reduces corrosiveness and converts any residual corrosiveness to a general, as distinguish... | 12/28/1976 |
