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An armor with rollers is provided that enables a user to move in all positions by rolling on a hard and smooth surface while constantly varying his bearing points on the ground.
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| Number | Title | Issue Date |
| 7838469 | Fusing materials for prevention of lost circulation A method is given for reducing fluid loss in downhole operations such as drilling and completion. A composition containing a fusing solid is injected into the fluid loss flow path; the fusing solid fuses at formation temperature when the injection pressure is releas... | 11/23/2010 |
| 7341102 | Flue gas injection for heavy oil recovery A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionall... | 03/11/2008 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 6861392 | Compositions for restoring lost circulation A method and composition is provided for sealing a subterranean zone penetrated by a well bore to restore lost circulation. In one embodiment, the composition comprises a pellet comprising a mixture of lost circulation materials (LCMs). ... | 03/01/2005 |
| 6806232 | Composition of drilling fluids comprising ground elastomeric crumb rubber material and a method of decreasing seepage and whole mud loss using such composition Well-working fluid compositions containing certain processed inorganic, oil and water wettable ground elastomeric crumb rubber materials to decrease the seepage loss of various fluids to subterranean formations in which these well working fluids are required and uti... | 10/19/2004 |
| 6514916 | Process for making sulfonated uintaite and well fluid additives including sulfonated uintaite Sulfonated uintaite is prepared by sulfonating a naturally occurring uintaite charge with a sulfonating agent such as sulfur trioxide, fuming sulfuric acid, chlorosulfonic acid, oleum, or concentrated sulfuric acid to produce sulfonic acids of uintaite. T... | 02/04/2003 |
| 6056896 | Metal corrosion inhibitor for use in aqueous acid solutions The present invention provides an improved metal corrosion inhibitor for use in aqueous acid solutions which is relatively non-toxic and inexpensive. The corrosion inhibitor is a mixture comprised of oligomerized aromatic amines prepared by contacting the... | 05/02/2000 |
| 5792420 | Metal corrosion inhibitor for use in aqueous acid solutions The present invention provides an improved metal corrosion inhibitor for use in aqueous acid solutions which is relatively non-toxic and inexpensive. The corrosion inhibitor is a mixture comprised of oligomerized aromatic amines prepared by contacting the... | 08/11/1998 |
| 5580844 | Encapsulated breaker chemical According to the present invention, there is provided a coated breaker chemical in which the coating comprises a blend of a neutralized sulfonated ionomer and asphalt. Preferably, the coating contains from about 1 to 20 wt. % asphalt and from 99 to 80 wt.... | 12/03/1996 |
| 5555937 | Method and combination of materials for releasing a stuck pipe A method and combination of materials for freeing stuck pipe involves first the spotting of a clear brine, preferably calcium chloride, calcium bromide or zinc bromide, or mixtures thereof, for a given period of time, preferably at least about 8 hours, in... | 09/17/1996 |
| 5032296 | Well treating fluids and additives therefor An additive for reducing the water loss and improving other properties of well treating fluids in high temperature subterranean environments and well treating fluids including the additive are provided. The additive comprises a mixture of a water soluble ... | 07/16/1991 |
| 4428843 | Well working compositions, method of decreasing the seepage loss from such compositions, and additive therefor The invention provides well-working fluid compositions containing certain hydrophobic organophilic water wettable fibrous materials to decrease the seepage loss of the fluid to subterranean formations in which the fluid is being used. Also disclosed is a ... | 01/31/1984 |
| 4233162 | Oil well fluids and dispersants The invention of this application is a dispersant system with various embodiments and subcombinations with exceptional dispersions including colloidal suspensions, aqueous hydrocarbon emulsions and emulsions with solid particulate additives dispersed ther... | 11/11/1980 |
| 4043396 | Alkoxylated asphalt as sacrificial agents in oil recovery processes A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting into the formation via the injecti... | 08/23/1977 |
| 4021356 | Alkoxylated asphalts as co-surfactants in surfactant oil recovery processes usable in formations containing water having high concentrations of polyvalent ions such as calcium and magnesium Ethoxylated asphalt solutions have high tolerance for sodium and calcium ions as well as magnesium and other divalent ions. The use of ethoxylated asphalts in combination with other surfactants that normally precipitate out in the presence of these cation... | 05/03/1977 |
| 3978927 | Alkoxylated asphalts as sacrificial agents in oil recovery processes A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting into the formation via the injecti... | 09/07/1976 |
