Packers are expandable sealing devices used to seal off zones in a well. Packers are expanded to seal the bore of the well by means of expansion fluid supplied via individual pipelines. However, packers near the top of the well have to accommodate all of the pipelines for packers below. The invention provides a packer system comprising a plurality of packers (22-28) and fluid delivery means arrang...

LAS FORMAS DE REALIZACION DE LAS ESTRUCTURA DESCRITAS SE REFIEREN A LA DETERMINACION DE UN ELEMENTO DE INTERES EN UNA MUESTRA. UNA FORMA DE REALIZACION SE REFIERE A UNA ESTRUCTURA QUE COMPRENDE UN RECORRIDO (10) DE PROCESO. EL RECORRIDO (10) DE PROCESO COMPRENDE UN PASILLO (28) DEL PROCESO QUE INCLUYE UN PASILLO (62) DE EJECUCION DE LA ETAPA DEL PROCESO EN EL QUE SE REALIZA LA ETAPA, Y UN PASILLO ...

Rock bits comprising wear and fracture resistant surface of this invention include a steel bit body having at least one leg extending therefrom. A steel cone is rotatably disposed on the leg. The steel cone includes a plurality of steel cutting elements that each projecting outwardly a distance therefrom. At least a portion of the cone comprises a wear resistant surface formed from a wear resista...

A pneumatic tire comprises a tread, portion in which an annular anti-adhesive sheet is embedded along the inside of the tire, the annular anti-adhesive sheet made of a material which does not firmly adhere to the adjacent rubber so as to form a bag-like portion as an unbonded part extending continuously in the tire circumferential direction, the bag-like portion filled with a self-sealing material...

UNA COMPOSICION DE RESINA DE POLIESTER DISPERSABLE O SOLUBLE EN AGUA, ADECUADA PARA APLICACIONES DE ENCOLADURA TEXTIL, QUE CONTIENE UN PRODUCTO DE REACCION DE 20 A 50% DE PESO DE POLIMERO DE TEREFTALATO RESIDUAL, DE 10 A 40% DE PESO DE AL MENOS UN GLICOL Y DE 5 A 25% DE PESO DE AL MENOS UN POLIALCOHOL OXIALQUILADO. LAS COMPOSICIONES PREFERIDAS TAMBIEN CONTIENEN DE 20 A 50% DE PESO DE ACIDO ISOFTAL...

An Internet advertisement system is provided which utilizes an advertisement server site and at least one partner web site. The partner web site provides to end-user terminals by e-mail a web page on which one or more banners provided from an advertisement server site (3) are inserted. When a user clicks a browsed banner, content linked to banner clicked on is retrieved from a content database and...

A business method is described for providing an integrated product and an integrated business offer to customers and third party developers over an established integrated business portal in a WAP-Bluetooth environment. The business method includes providing an WAP-Bluetooth SDK to qualified third parties using the business portal. The SDK includes a WAP-Bluetooth development environment, WAP-Bluet...

There provides a system using graphic interface to perform warehousing management, which comprises: a database for use as data access of warehousing management and respectively connected to the following modules for performing the warehousing management of the graphic interface; a warehousing location design and programming module for enabling the user to program the sizes and related attributes o...

The invention relates to a method and a device for recording an information signal 10 in a phase change layer of a recording medium. A mark is recorded by a sequence 13 of write pulses and previous marks between the marks to be recorded are erased by a sequence of erase pulses 14. De bias power level 191, 192 between the erase pulses is made dependent on the recording speed, thus obtaining low jit...

A gas discharge type light emission apparatus having a discharge space filled with a gas medium, and using an electronic discharge of the gas medium, wherein the gas medium includes at least 0.01 volume percent to 1 volume percent inclusive of water vapor. Specifying the amount of water vapor in this manner, a discharge voltage can be significantly decreased.

A display panel, such as a plasma display panel, which can reduce a noise of impact caused by oscillations of a front panel and a back panel when driving the display panel is provided. In the display panel, protrusions are formed on a surface of a first panel facing a second panel, and the first panel and the second panel are connected by a binder at portions where the protrusions and barrier ribs...

A petroleum well (20) comprises a well casing (30), a production tubing (40), a source of time-varying current (68), a downhole chemical injection device (60), and a downhole induction choke (90). The casing (30) extends within a wellbore of the well (20). The tubing (40) extends within the casing (30). The current source (68) is located at the surface. The current source (68) is electrically conn...

A petroleum well having a communication system and a hydraulic system is provided. The petroleum well includes a borehole and a piping structure positioned within the borehole. The communication system supplies a time varying electric current downhole along the piping structure. The hydraulic system, which is positioned downhole proximate the piping structure, receives the time varying current to ...

A method for operating a downhole tool (53) includes moving an instrument through a wellbore, the instrument including a first non-acoustic transponder (59) that is adapted to detect identification codes. An identification code detected from at least one second non-acoustic transponder (55,57) is compared to a reference code. The at least one second non-acoustic transponder is attached to an empla...

UN SISTEMA POLIMERO SEMI-INTERPENETRANTE HECHO DE UNA MEZCLA DE UN COMPONENTE POLIMERO ENDURECIBLE POR LA HUMEDAD Y DE UN COMPONENTE ELASTOMERO QUE NO FORMA UNION INTERMOLECULAR, EL CUAL CUANDO SE EXPONE A LA HUMEDAD SE CONVIERTE EN TERMOESTABLE. EL PRODUCTO TERMOESTABLE FORMA ESPUMA Y ES APROPIADO PARA SELLAR JUNTAS, MATERIAL EN CAPAS, TUBERIAS Y COMO SELLANTE-ENCAPSULANTE ENTRE OTROS USOS FINALE...

SE PRESENTAN ARTICULOS EXPANDIDOS DE MATERIAL PLASTICO BIODEGRADABLE QUE SE PRODUCEN AGLOMERANDO PARTICULAS EXPANDIDAS CON UNA DENSIDAD DE ENTRE 0.01 Y 0.0003 G/GM3 Y UN TAMAÑO DE ENTRE 0.5 Y 10 MM DE DIAMETRO, HECHAS DE UN MATERIAL QUE COMPRENDE: - ENTRE UN 50 Y UN 95% DE SU PESO DE ALMIDON TERMOPLASTICO; - ENTRE UN 0.5 Y UN 45% DE SU PESO DE AL MENOS UN POLIMERO TERMOPLASTICO; - ENTRE UN 2 Y UN ...

UN METODO Y SISTEMA PARA CONTROLAR LA REDUCCION DE VELOCIDADES DE UN SISTEMA AUTOMATICO DE TRANSMISION MECANICA QUE DETECTA INTENTOS FALLIDOS DE APLICAR UNA RELACION DE REDUCCION DE VELOCIDAD PREDETERMINADA (GR SUB,T}) DEBIDO A QUE LA VELOCIDAD DEL MOTOR SIGUE SIENDO MENOR QUE LA VELOCIDAD SINCRONA DEL MOTOR (ES = OS*GR SUB,T}) PARA APLICAR LA CITADA RELACION DE REDUCCION Y, EN RESPUESTA A LA DETE...

LA PRESENTE INVENCION SE REFIERE GENERALMENTE A POLIMEROS DE PROPILENO CRISTALINOS, A LOS PROCEDIMIENTOS PARA SU PRODUCCION Y LOS PROCEDIMIENTOS PARA SU UTILIZACION EN APLICACIONES DE PELICULAS ORIENTADAS. ESPECIFICAMENTE, ESTA INVENCION SE REFIERE A COMPOSICIONES POLIMERICAS DE PROPILENO CRISTALINAS QUE CONTIENEN TANTO HOMOPOLIMEROS DE PROPILENO COMO COPOLIMEROS DE PROPILENO. DICHAS COMPOSICIONES...

LA PRESENTE INVENCION SE REFIERE A UNA PELICULA RETRAIBLE MEJORADA, OBTENIDA REGULANDO Y OPTIMIZANDO SELECTIVAMENTE EL DIFERENCIAL DE DENSIDAD ENTRE, AL MENOS, DOS COMPONENTES POLIMEROS DE POLIOLEFINA, DE FORMA QUE OBTENGA VARIACIONES DE DENSIDAD REDUCIDAS. ESTA INVENCION SE REFIERE, POR UNA PARTE, A UNA PELICULA RETRAIBLE DE POLIOLEFINA ORIENTADA BIAXIALMENTE QUE TIENE UNAS PROPIEDADES EQUILIBRAD...