Did You Know...
...that the Band-Aid Bandage was invented by a Johnson & Johnson employee whose wife had cut herself? Earl Dickson's wife was rather accident prone, so he set out to develop a bandage that she could apply without help. He placed a small piece of gauze in the center of a small piece of surgical tape, and what we know today as the Band Aid bandage was born!
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| Number | Title | Issue Date |
| 5507348 | Apparatus for locking wire line instrument to drill collar An apparatus for supporting instrumentation in a drill collar in a well, such instrumentation being subject to travel in the well to and from the drill collar comprising instrumentation having upper and lower end portions and being elongated between the e... | 04/16/1996 |
| 5454275 | Kabis discrete groundwater sampler A discrete groundwater sampler specifically designed to obtain a low-turbidity groundwater sample directly into the sample transport container, with minimal or no loss of dissolved volatile organic contaminants and no oxidation of dissolved inorganic cont... | 10/03/1995 |
| 5398763 | Wireline set baffle and method of setting thereof A wireline set baffle for positioning in a well casing after the well casing has already been placed in a wellbore. The apparatus comprises a baffle and a setting or running tool engaged with the baffle and adapted for positioning the baffle at a predeter... | 03/21/1995 |
| 5377748 | Spill container for wells with improved mounting A spill preventing device for use on a tubular portion of a well head is provided. The device has at least two sections forming an open-topped container with a bottom, the container being of a size to receive spills around the well. The container sections... | 01/03/1995 |
| 5375659 | Sonde supported operating system for control of formation production fluid flow The present disclosure is directed to an apparatus which can be installed for opening and closing fluid flow production from a formation penetrated by a cased well borehole and connected therewith through perforations. The production tubing string is inst... | 12/27/1994 |
| 5327981 | Ground water sampling device A groundwater sampler is disclosed which is adapted for reuse at multiple depths during a single boring, which is simple in design, which may be built with but a small number of parts, which is easy to used which is easy to decontaminate, and which is res... | 07/12/1994 |
| 5277252 | Sampling tool for obtaining samples of fluids present in a well A sampling tool for immersion into a well for collection of samples of oil, gas or water during drilling for production includes a tubular, hollow and preferably cylindrical member with two chambers separated by a compressible pipe. An outer pipe is forme... | 01/11/1994 |
| 5176208 | Reverse circulation tool handling cuttings and debris A device for providing fluid cross over in a milling operation is set forth. It is particularly used by connection to a pipe string which supports the milling device for cutting junk from a well. It features an elongate hollow tool body having a central p... | 01/05/1993 |
| 5042598 | Drilling fluid additive sweep cartridge and method A drilling fluid additive sweep cartridge and method. The cartridge contains additives and the cartridge introduces those additives at the tool joint of the next drill pipe used which is positioned in the mouse hole. A modified sweep cartridge introduces ... | 08/27/1991 |
| 4966233 | Tracer deployment tools A tracer deployment tool for discharging a quantity of radioactive or other toxic tracer material into a wellbore for distribution into an earth formation with an injection fluid includes a first piston held in a predetermined position by shear pins and a... | 10/30/1990 |
| 4940088 | Sonde for taking fluid samples, in particular from inside an oil well In order to take a practically unlimited number of fluid samples, in particular from a well in production, a sonde is used including as many modular sampling devices (10) as there are samples to be taken. These devices (10) are disposed end-to-end and the... | 07/10/1990 |
| 4903765 | Delayed opening fluid sampler A delayed opening fluid sampling tool comprises a body having three chambers and a port defined therein. The tool also comprises a metering device which is disposed in the body between two of the chambers, one of which chambers is for holding a metering f... | 02/27/1990 |
| 4846279 | Method and means for introducing treatment fluid into a well bore Treatment fluid is injected into the production fluid of a well from a bladder contained in a canister at the bottom portion of the well bore. The flow rate is predetermined through use of a capillary tube connecting the bladder and an injection outlet. D... | 07/11/1989 |
| 4809778 | Oil well tool for in situ release of wellbore treatment fluid An oil well tool for in situ release of treatment fluid into an oil well is disclosed. A tubular body is insertable into an oil well casing, which tubular body carries a bladder containing treatment fluid. The body is closed at a lower end and has at an u... | 03/07/1989 |
| 4790386 | Method and means for introducing treatment composition into a well bore Treatment composition is released into a well by lowering a container filled with the composition to the bottom of the well. The corrosive well fluid dissolves the composition through the open upper end of the container and corrodes away the walls of the ... | 12/13/1988 |
| 4727939 | Tool for closing a production column in a well The invention relates to a tool suitable for closing a production column (100) of a well when the tool is located in a connector of enlarged diameter (101). The tool is lowered on the end of a cable (76) and includes a tilting valve member (60) which is o... | 03/01/1988 |
| 4688635 | Apparatus for setting a bottom tool An apparatus for setting a bottom tool comprising a valve body having its lower end portion connected to a bottom tool and an upper end portion connected to a source of fluid under pressure, an elongated bore within the valve body, a valve member slidable... | 08/25/1987 |
| 4640354 | Method for actuating a tool in a well at a given depth and tool allowing the method to be implemented A downhole tool is actuated at chosen well depth by selection of a control element that melts at the chosen depth well temperature. In one form of tool, a fusible pin melts to release spring-loaded jaws which move against an expansion cone to anchor the t... | 02/03/1987 |
| 4624317 | Well tool with improved valve support structure A well testing tool includes a housing adapted to be connected to a well test string and having a substantially open bore therethrough. A valve assembly is disposed in the housing and includes a spherical valve member having a substantially open valve bor... | 11/25/1986 |
| 4611664 | Technique for placing a liquid chemical in a well or bore hole A liquid chemical, such as a corrosion inhibitor, is inserted into a producing well by pouring the chemical into an elongate carrier and then dropping the carrier into the well. The liquid chemical and the carrier are selected so that the carrier is disso... | 09/16/1986 |
| 4502537 | Annular sample chamber, full bore, APR.RTM. sampler An annulus pressure responsive sampler valve comprising a power section and a sampler section having an annular sample chamber therein; the sampler valve having a full bore therethrough.... | 03/05/1985 |
| 4421166 | Apparatus for injecting material into a well-bore Injector apparatus is disclosed which includes a sealed self-contained replaceable vessel containing an ejectable material to be injected into the well-bore during well logging operations. The vessel comprises a flexible-wall, collapsible tubular-like car... | 12/20/1983 |
| 4390064 | Junk basket A junk basket for collecting junk from a well bore and adapted for external connection to a well drilling string. The junk basket includes an elongate body having an annular interior for a releasable attachment to the exterior of a portion of the drilling... | 06/28/1983 |
| 4270610 | Annulus pressure operated closure valve with improved power mandrel A testing apparatus for use in an oil well includes an improved power mandrel and power mandrel restraining portion. The power mandrel is disposed in a cylindrical housing having an open bore therethrough and a power port and a circulating port through th... | 06/02/1981 |
| 4254830 | Geothermal well sampler apparatus An elongated body member, a portion of which forms a chamber for retaining samples of the liquid and steam contents of a geothermal well. A fluid tight seal is formed between an O-ring and a parallel sealing face of a slidable shaft member. The pressure s... | 03/10/1981 |
| 4194567 | Method and apparatus for balancing pressures in an oil well The invention relates to the balancing of the pressures in drilled strata, the pressures being lower than that of the liquid columns contained in the entire well. The hydrostatic level of fluid, e.g. a liquid, in the bottom of the well is selected to obta... | 03/25/1980 |
| 4194561 | Placement apparatus and method for low density ball sealers An apparatus and method for the selective placement of ball sealers for fluid treatment of a well, said ball sealers having a density less than the density of said fluid comprising a tubular member, means on said tubular member for positioning said appara... | 03/25/1980 |
| 4111262 | Junk boot A tubular, flexible rubber-like junk boot is positioned on the lower end of a drill string, blade-type stabilizer to catch small but dense particles of debris which are not removed from the hole by the drilling fluid. The boot has means on its lower end f... | 09/05/1978 |
| 4083406 | Method and apparatus for sealing drill casing A method and apparatus is disclosed for permanently sealing the lower end of a drill casing to a liquid impermeable layer such as bedrock to prevent contaminating fluid seepage between the casing and the liquid impermeable layer from strata disposed above... | 04/11/1978 |
| 4082483 | Oil well pump A novel oil well pump for reaching greater depths in wells than prior art structures having reduced down casing sizes wherein the pump comprises a plurality of individual hollow cylindrical chambers each operable in a given part of the pipe casing in conj... | 04/04/1978 |
| 4064941 | Apparatus and method for mixing separated fluids downhole A method and apparatus are disclosed for mixing two previously separated fluids at a downhole location adjacent a predetermined formation interval.... | 12/27/1977 |
| 4064937 | Annulus pressure operated closure valve with reverse circulation valve A closure valve for use in oil well testing is presented which provides a full opening flow passage therethrough, and which includes a reverse circulation valve. The closure valve is operated by a power mandrel which is responsive to well annulus pressure... | 12/27/1977 |
