tuberias produccion

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INDICE

TUBERIAS DE PRODUCCION

1. INTRODUCCION

2. CONCEPTO

3. OBJETIVO

4. DESARROLLO

4.1. tipos de tuberas y funciones

4.2. revestidor de produccin

4.3. tuberas de superficie

4.3.1. caso base

4.3.2. test de presion

4.3.3. 1/3 evacuada

4.3.4. 1/3 reemplazado por gas

4.3.5. surgencia.

4.4. tuberas de produccin4.4.1. caso base

4.4.2. totalmente evacuado

4.4.3. perdidas de tubing en superficie ( temperatura esttica)

4.4.4. perdidas de tubing en superficie ( temperatura dinmica)

4.5. diferencia de tubing y casing

4.6. caeras del sistema de produccin en pozo

4.7. el cao gua

4.8. la caera intermedia

4.9. la caera de produccin

4.10. diseo d una tubera de produccin

4.11. norma y aplicacin de las tuberas de produccin

4.12. caracteristicas de las tuberas de produccin

4.13. norma de la tubera de produccin.

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4.13.1. normas de fabricacin

4.13.2. requerimientos qumicos

4.13.3. propiedades mecnicas

4.13.4. longitudes

4.13.5. requerimientos especiales

4.13.6. propiedades mnimas de desempeo

4.13.7. acabados

4.13.8. marcaje

4.13.9. roscado

4.13.10. tabla de productos4.13.11. tolerancias

4.14. factores de diseo

4.15. modo de uso de los grficos

5. APLICACIN

6. CONCLUSION

7. RECOMENDACIONES

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TUBERIAS DE PRODUCCION

1. INTRODUCCION

Para poder hablar de las tuberas de produccin es necesario hacer unaintroduccin de todas las tuberas ocupadas en el proceso de produccin depetrleo o gas.

La herramienta tubular ms importante en el proceso de produccin es latubera o tubing.

Fabricada igualmente con acero especiales para soportar el intensomanipuleo de un pozo asi mismo las tuberas deben ser seleccionadas pararesistir procesos de cementacin, estimulacin, fractura miento y corrosin

intensa as como un intenso manipuleo de desanclar packers, sacar tapones,re perforar cemento, etc.

Al incrementar el dimetro del tubing se reducir la friccin y permitir y unmayor flujo o produccin de petrleo. Pero el incremento del dimetroconlleva un mayor costo y as mismo puede traer problemas con el dimetrointerno de casing usado la ptima relacin de dimetros tubera-

Caera es funcin del rgimen de flujo deseado y del costo de los arreglos.

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2. CONCEPTO DE TUBERAS DE PRODUCCION

Es una tubera especial utilizada para producir el pozo y que puedereemplazarse o repararse durante la vida del pozo. Estos bajan por el interiorde los revestidores de los pozos para petrleo y/o gas. Esta tubera de acero

comunica la bomba de subsuelo con el cabezal y la lnea de flujo.En caso de haber instalado un ancla de torsin, la columna se arma contorsin ptimo API, correspondiente a su dimetro. Si existiera arena, an conancla de torsin, se debe ajustar con la torsin mxima API, de este modo encaso de quedar el ancla atrapada, existen ms posibilidades de librarla, loque se realiza girando la columna hacia la izquierda. Si no hay ancla detorsin, se debe ajustar tambin con el mximo API, para prevenir eldesenrosque de la tubera de produccin.

3. OBJETIVO

El objetivo de la tubera de produccin es el de facilitar el flujo de los fluidosde formacin a la superficie, de este modo permitiendo al operador mejorar uoptimizar la produccin siempre tomando en cuenta las caracteristicas delreservorio a explotar.

4. DESARROLLO

4.1. tipos de tuberas y funcionesTubera GuaLa tubera gua es la primera seccin en una columna. Provee sostn aformaciones in consolidadas, asla zonas acuferas y brinda proteccin contraescapes de gas. Esta caera se cementa hasta la superficie.

Tubera de SuperficieLa tubera de superficie brinda proteccin contra surgencias, asla zonasacuferas y previene prdidas de circulacin. En las cartas presentes, el

dimetro considerado para este tipo de tubera es de 9 5/8 pulgadas.

Tubera IntermediaLa tubera intermedia suministra aislacin en zonas inestables del pozo, enzonas de prdidas de circulacin, de bajas presiones y en capas productoras.Las presiones que tiene que soportar pueden ser considerables. El tope decemento tiene que aislar cada una de las capas productoras para evitarfuturas contaminaciones.

Tubera de Produccin

La tubera de produccin se utiliza para aislar zonas productivas y contenerpresiones de formacin. Tiene que estar diseada para soportar presiones de

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inyeccin provistas, por ejemplo, por una estimulacin por fractura,produccin asistida por Gas Lift, e incluso para cementacin, que en este tipode tuberas suele ser muy crtica.

En caso de falla del tubing, es la cmara de contencin de los fluidos dereservorio. Las tuberas consideradas en estos grficos son de 5 1/2 y 7pulgadas.

LinerEl lineres una tubera que no se extiende hasta la cabeza del pozo, sino quese cuelga de otra tubera que le sigue en dimetro y sta hasta la boca delpozo. La tubera colgada permite reducir costos y mejorar la hidrulica enperforaciones ms profundas. Los liners pueden funcionar como tuberaintermedia o de produccin, normalmente cementada en toda su longitud.

4.2. Revestidorde Produccin:

Es la sarta de revestimiento a travs de la cual se completa, produce ycontrola el pozo durante toda su vida productiva y en la cual se pueden llevara cabo muchas reparaciones y completaciones.

Este revestidor se coloca hasta cubrir la zona productiva y proporciona unrefuerzo para la tubera de produccin (tubing) durante las operaciones de

produccin del pozo. Por lo general, no se extiende hasta la superficie y escolgada en la sarta de revestimiento anterior a ella. La profundidad deasentamiento es la profundidad total del pozo.

Las principales funciones son:

Aislar las formaciones o yacimientos para producir selectivamente.Evitar la migracin de fluido entre zonas.Servir de aislamiento al equipo de control (cabezal) que se instalar paramanejar la produccin del pozo.

Camisa o Liner Intermedia o Protectora:

Las camisas protectoras o intermedias son sartas que no se extienden hastala superficie y se cuelgan de la anterior sarta de revestimiento.

El propsito de esta sarta es prevenir problemas de prdida de circulacincuando se requieren altos pesos de lodo. Proporciona la misma proteccinque el revestidor intermedio.

Camisa o Liner de Produccin:

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Este tipo de tubera se coloca en la seccin interior del revestidor deproduccin.

Su uso principal se realiza en pozos exploratorios debido a que se puedenprobar las zonas de inters sin el gasto de una sarta completa. Luego si

existe una produccin comercial de hidrocarburo, se puede conectar la sartahasta superficie.

En la mayora de los casos se corre con una herramienta especial en el topedel mismo que permite conectar la tubera y extenderla hasta la superficie sise requiere. Normalmente, va colgado a unos 500 por encima del ltimorevestidor cementado hasta la profundidad final del pozo.

Tie Back:

Los liners de produccin generalmente se conectan hasta superficie (en elcabezal del pozo) usando una sarta de revestimiento tie back cuando elpozo es completado. Esta sarta se conecta al tope del liner con un conectorespecial.

El tie back asla revestidor usado que no puede resistir las posibles cargas depresin si contina la perforacin, proporcionando integridad de presindesde el tope del liner al cabezal del pozo.

Tambin permite aislar un revestimiento gastado que no puede resistirincrementos de presin o aislar revestimientos intermedios en casos deincrementos de produccin.

4.3. Tuberas de Superficie

Los casos de carga a considerar son:

Caso base

Test de presin 1/3 de la tubera evacuada 1/3 del lodo reemplazado por gas Surgencia

4.3.1. Caso base

En el caso base, las tuberas se asumen cementadas de acuerdo consiguiente esquema:

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Las tuberas utilizadas como casingconductor, casingde superficie ycasing liners son cementadas en su totalidad.

Las tuberas utilizadas como casing de produccin son cementadashasta el 50% de su profundidad.

El perfil de presin externa se genera con el gradiente dado por el lodoy el cemento, ubicando en la parte superior del anillo de cemento ellodo utilizado para perforar dicha seccin.

El mismo lodo tambin se utiliza como columna hidrosttica interna delcasing.

El caso base contempla el estado de la tubera una vez que el cementose ha desplazado en su totalidad.En estas circunstancias iniciales, no se aplica ninguna fuerza de"colgado" a la tubera.

4.3.2. Test de Presin

Para el caso de Test de Presin se asume que el casingest lleno delodo y es sometido a presin interna en superficie para lograr en el

zapato una presin igual a la del gradiente de fractura seguro de la

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formacin. Este gradiente seguro es igual al gradiente de fractura dela formacin ms 0,2 ppg para pozos de desarrollo o 0,5 ppg para elcaso de pozos exploratorios.

El perfil de presin poral se usa como presin externa para el caso detest de presin.

4.3.3. 1/3 evacuada

El casing es internamente evacuado desde la superficie hastacompletar 1/3 de la mxima profundidad del pozo. Debajo de esaprofundidad se encuentra el peso del lodo para la prxima tubera.

La presin externa es la originada por el peso del lodo con el que la

caera fue bajada.

El perfil de la temperatura creado en este caso de carga es el esttico.

4.3.4. 1/3 reemplazado por gas

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Como en el caso de 1/3 evacuado, mltiples casos de carga se puedengenerar al reemplazar 1/3 del lodo de perforacin por gas. La tuberapasa de estar sometida al colapso a estarlo a presin interna.

4.3.5. Surgencia

Este caso es generado a partir de una surgencia de 50 o 100 bbl degas de diferente densidad dependiendo del tipo de pozo. Para el casode los exploratorios, 2 ppg, y para el caso de los de desarrollo, 1 ppgsobre la densidad del lodo.

El perfil de temperatura de la surgencia se genera basndose en latemperatura circulante. Al igual que la condicin de 1/3 reemplazadopor gas, mltiples casos de surgencia pueden ser generados. Unsistema experto calcula las posibles fracturas basndose en elgradiente seguro de fractura.

La altura de la columna de gas depender del dimetro del pozo, delos portamechas y de las barras de sondeo.

4.4. TUBERIAS DE PRODUCCINCasos de cargas considerados:

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Caso base

Completamente evacuado

Perdida cerca de superficie a temperatura esttica

Perdida cerca de superficie a temperatura dinmica

4.4.1. Caso base

En el caso base, las tuberas se asumen cementadas de acuerdo conel siguiente esquema.

Las tuberas utilizadas como casing conductor, casing de superficie

y casing de liners son cementadas en su totalidad.

Las tuberas utilizadas como casing de produccin son

cementadas hasta el 50% de su profundidad.

El perfil de presin externa se genera con el gradiente dado por el lodoy el cemento, ubicando en la parte superior del anillo de cemento ellodo utilizado para perforar dicha seccin.

El mismo lodo tambin se utiliza como columna hidrosttica interna delcasing.

El caso base contempla el estado de la tubera una vez que el cementose ha desplazado en su totalidad.

En estas circunstancias inciales. No se aplica ninguna fuerza decolgado a la tubera.

4.4.2. Totalmente evacuado

Si el casing de produccin es totalmente evacuado interiormente, seproduce un severo caso desde el punto de vista del colapso.

Al bajar la columna, el peso del lodo se encuentra en el espacio anular.Se utiliza un perfil de temperatura esttico.4.4.3. Perdidas de tubing en superficie (Temperatura esttica)

El interior del casing soporta la presin del reservorio ms la columnade fluido existente entre el tope del packer y superficie, siendo en casosevero desde el punto de vista de la traccin y la presin interna.

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La presin natural poral es la que se usa como perfil de presinexterna.

El mismo caso de carga por prdida de Tubing en superficie se usa

tanto para casing liner como para tieback.4.4.4. Perdidas de tubing en superficie (Temperatura dinmica)

La condicin dinmica simula los esfuerzos que soporta la tuberadurante una produccin constante del pozo.

Este caso es el idntico al de prdida en Tubing esttico, la diferenciaes que en el dinmico es el flujo (caliente) el que determina laspresiones tanto por directa como por anular y las cargas a las que sersometida la tubera.

4.5. Diferencia de tubing y casing

Los dimetros desde 4,5 pulg. A 20 pul de OD son consideradas caeras ydesde pulg y 4.5 pulg son tuberas.

4.6. caeras del sistema de produccin en pozo.

El trabajo cuidadoso de la ingeniera de perforacin que es el agujero delpozo, de miles de metros de profundidad, debe ser preservado de

derrumbes y contaminaciones entre niveles atravesados por medio de un"revestimiento especial" el cual esta conformado por la caera o casingfabricada de acero duro y especialmente diseada para resistir las altaspresiones estticas externas de las rocas de cientos de metrosatravesados y las fuertes presiones dinmicas internas de los fluidos deperforacin y eventualmente del gas y petrleo surgente.

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4.7. El cao gua.

Un pozo productor de petrleo y/o gas, usualmente requiere tres arreglos

concntricos de material tubular o caera.

El CAO GUIA que es inicialmente colocado y cementado en el primer tramodel pozo perforado y tiene por fin consolidar la base del pozo yconjuntamente con el ante pozo forma una especie de cimiento ofundacin tanto para la plataforma de perforacin como para todo elarreglo subsuperficial de caeras que se instalaran posteriormente.Usualmente tiene una longitud entre 6 a 30 metros y sus dimetros puedenoscilar entre 20" hasta 9 5/8".

4.8. La caera intermedia.

La segunda caera denominada CAERIA INTERMEDIA que recubre todala parte intermedia del pozo con extensiones desde 200 a miles demetros y provee proteccin para prevenir la contaminacin de agua deformaciones de agua salada, evita derrumbes de areniscas y arcillas,facilitando asimismo la circulacin de los fluidos de perforacin paraatravesar los niveles mas profundos y alcanzar los objetivos de la perforacin.

Sus dimetros pueden variar de 9 5/8" a 5".

Esta caera ser adecuadamente cementada o sea recubierta con cemento

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en toda la zona intermedia entre la caera y las paredes del pozo.

4.9. La caer a de produccin.

La tercera caera denominada la CAERIA DE PRODUCCION esbajada solo en el caso de tener plena seguridad de la potencial productividaddel pozo perforado en base a evaluaciones previas de registros y pruebasen agujero abierto.

Esta caera cubrir los tramos a ser explotados o se colocarainmediatamente encima del tramo perforado del nivel productor.

Para los fines de garantizar la produccin de petrleo y gas sin contaminacinde agua y/o arena, se exige que la cementacin de esta caera en toda la

zona de niveles productores sea ptima o sea con un 100% de aislamiento.

El arreglo final a ser bajado en el pozo de produccin es la sarta de TUBERIAo tubing. Su dimetro reducido ( T a Y) permite una fcil operacin debajada al pozo dentro de las caeras instaladas y asimismo una eficienteproduccin del petrleo o gas, siendo asimismo fcilmente removible al surgiralgn problema de produccin.

4.10. Diseo de una tubera de produccin

Al mencionar los diferentes tipos de determinacin de pozos, aparece lautilizacin de una, dos hasta tres sartas de produccin, segn el nmero deestratos que independientemente ameriten ser producidos.

Tan importantes son las especificaciones y diseo de cada sarta d produccincomo las de las sartas de revestimiento.

Las reglas bsicas para desarrollar un diseo de tuberas en un pozo son:

1. Determinar los dimetros y longitudes de arreglos de caera a sercorridos en el pozo2. Calcular el tipo y magnitud e de los esfuerzos y cargas para la

caera, que se estima encontrar en el pozo.3. Seleccionar el peso y grado de la caera adecuados para soportas las

condiciones extremas de esfuerzos y fatigas esperados en el pozo.

La planificacin de un pozo comienza con la seleccin de un programacaera /trepano. Del dimetro de trepano a ser usado en cada fasedepender el dimetro externo de la caera a ser bajada en el pozo.

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A su vez del dimetro interno de esta caera depender el dimetro delsiguiente tipo de trepano a ser usado y as sucesivamente.

Las condiciones de esfuerzos y fatigas que deber afrontar la caera ser

bajada en el pozo se resumen en tres factores: "la presin de colapso",efecto de la presin de formaciones rocosas" y la "tensin"

A la hora de contar con pozos ms problemticos, para realizar losdiseos, se requiere una serie de datos adicionales que podr dependerde la ubicacin de la cuenca, del yacimiento, tipo de pozo, etc. Entre losms importantes se cuentan:

Densidad y tipo de lodo de perforacin

Trayectoria del pozo

Presin poral de formacin

Presin de fractura estimada

Perfil de temperatura

Localizacin de zonas permeables

Zonas de posibles prdidas de circulacin

Altura de cemento

Presencia de H2S y/o CO2, domos salinos, etc.

Datos histricos del yacimiento

4.11. Factor de diseo

Son cinco los factores de diseo empleados en la confeccin de losgrficos.

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Nota: Todos los factores de diseo son Valores MnimosConsiderados. Podrn ser cambiados a criterio del diseador/operador.

(*) En ambos casos la resistencia de la unin se reemplazar por la delcuerpo del tubo si sta fuera menor.

4.12. Norma y aplicacin de las tuberas de produccin peso y grado

de la caera

El API designa de las longitudes de las caeras y tuberas de la siguientemanera:

Las piezas ms cortas son ms fciles de transportar que las piezas largas.Se caracterizan por peso, espesor y grado de acero.

Grado de acero:

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Rangos Longitud

1

23

16 25

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Los grados de acero de tubulares estn representados por la mezcla decarbn y hierro en diferentes proporciones.

Los valores de material tubular en la industrias petrolera se identifica sinnomenclaturas diferentes de las otras industrias las caeras y tuberas y

caeras vienen en variado valores de sesin y e resistencia limite.

El API reconoce algunos grados:

Grado hierro(psi)

Extremo(psi)

H-40I-50K-55C-75N-80C -95P-110

40 0005500055000750008000095000110000

60000750009500095000100000105000125000

No segn el API

Grado hierro(psi)

Extremo(psi)

5-80590

55-955-105500-1255100-140V-150500-1559-95

5500090000

800009500095000125000140000150000105000

95000105000

100000110000135000150000150000150000165000

En los campos API la letra son arbitrariamente colocadas para evitarconfusin en la comunicacin del tipo de tubular.

Los nmeros a la resistencia, a la sesin de los materiales en los gradosvaran de acuerdo a la magnitud de la fuerza que va ejercer

4.12. Caracteristicas de las tuberas de produccin

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tubos

API carcasa y tubos /

Estndar de produccinAPI SPEC 5CT / API

SPEC 5B Quality Control /ISO9001 API Q1

API 5CT 0519

Norma API de tamao de tubera

OD

Peso nominal(Rosca conde acoplamiento)

Wall Grado y tipo de trmino

N U

in mm lb / ft. Kg / m lb / ft. kg / m in mm J55 L80N80-1N80-Q

C90

2-3/8 60,32 4,60 6,85 4,70 6,99 0,190 4,83 PNU PNU PNU PNU

2-3/8 60,32 5,80 8,63 5,95 8,85 0,254 6,45 -- PNU PNU PNU

2-3/8 60,32 7,35 10,94 7,45 11,09 0,336 8,53 -- PU -- PU

2-7/8 73,02 6,40 9,52 6,50 9,67 0,217 5,51 PNU PNU PNU PNU

2-7/8 73,02 7,80 11,61 7,90 11,76 0,276 7,01 -- PNU PNU PNU2-7/8 73,02 8,60 12,80 8,70 12,95 0,308 7,82 -- PNU PNU PNU

2-7/8 73,02 9,35 13,91 9,45 14,06 0,340 8,64 -- PU -- PU

3-1/2 88,90 7,70 11,46 -- -- 0,216 5,49 PN PN PN PN

3-1/2 88,90 9,20 13,69 9,30 13,84 0,254 6,45 PNU PNU PNU PNU

3-1/2 88,90 10,20 15,18 -- -- 0,289 7,34 PN PN PN PN

3-1/2 88,90 12,70 18,90 12,95 19,27 0,375 9,52 -- PNU PNU PNU

4 101,60 9,50 14,14 -- -- 0,226 5,74 PN PN PN PN

4 101,60 10,70 -- 11,00 16,37 0,262 6,65 PU PU PU PU

4-1/2 114,30 12,60 18,75 12,75 18,97 0,271 6,88 PNU PNU PNU PNU

He/she notices: P = N = final plain doesn't bother with AND = I spin annoying

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with threadRango: R1: 6,10 span lang = "ES-ES"> 7.32m?? span lang = "ES-ES"> 20

4.13. Norma de la tubera de produccin:

Como todo en el mudo petrolero esta regido por el instituto Americano delpetrleo, tambin el pequeo mudito petrolero boliviano sigue esas normas, yla norma en que la industria petrolera en Bolivia, para tuberas de produccines la API 5CT

4.13.1 Normas de Fabricacin

La tubera de produccin se fabrica de acuerdo a la norma API 5CT / ISO11960, 8 edicin, sin embargo, a solicitud del cliente y previo acuerdo conIndustrias Unicon, C.A., se pueden satisfacer normas especficas del cliente yrequerimientos especiales y/o adicionales.

4.13.2 Requerimientos Qumicos

Grado P Fsforo % Mximo S Azufre % Mximo

H-40 0,030 0,030

J-55 0,030 0,030

N-80Q(*) 0,030 0,030

(*) El tratamiento trmico de los tubos Grado N80Q extremos lisos se realiza enCondusid, C.A., filial de Industrias Unicon, C.A. El servicio de roscado conconexiones API y Tenaris Connections, es suministrado directamente porCondusid, C.A.

Nota: Para todos los grados existen restricciones adicionales de composicinqumica con un azufre de 0,010% mximo y fsforo de 0,025% mximo.

Fuente: API 5CT / ISO 11960, 8 edicin

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4.13.3 Propiedades Mecnicas

Grado

Lmite de Fluencia Resistencia a la Traccin

Mnimo Mximo Mnimopsi Mpa psi Mpa psi Mpa

H-40 40,000 276 80,000 552 60,000 414

J-55 55,000 379 80,000 552 75,000 517

N-80Q 80,000 552 110,000 758 100,000 689


4.13.4 Longitudes

Unidad Rango 1 Rango 2

m 4,88 - 7,62 7,62 - 10,36

pies 16 - 25 25 - 34

4.13.5 Requerimientos Especiales

Previa consulta y/o anlisis de factibilidad, se pueden acordar requerimientosespeciales entre el cliente e Industrias Unicon, C.A., a saber:

Propiedades Qumicas restringidas.

Otras presiones de prueba y/o duracin de stas.

Ensayos No Destructivos (NDT) ms exigentes a la norma API 5CT /ISO 11960

4.13.6 Propiedades Mnimas de Desempeo

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DesignacinComercial

Presin InternaMnima

de Fluencia (psi)

Presin deColapso (psi)

Carga para laFluenciax 1000 Lb

Etiqueta 1 Etiqueta 2 H-40 J-55 N-80 H-40 J-55 N-80 H-40 J-55 N-80

1.900 2.75 5,340 7,350 10,680 5,640 7,750 11,280 32,0 43.9 63.9

2 3/8 4.00 4,920 6,770 9,840 5,230 7,190 9,980 46.3 63.7 92.6

4.60 5,600 7,700 11,200 5,890 8,100 11,780 52.2 71.7 104.3

2 7/8 6.40 5,280 7,260 10,570 5,580 7,680 11,170 72.5 99.7 145.0

3 1/2 7.70 4,320 5,940 8,640 4,630 5,970 7,870 88.10 122.5 178.2

9.20 5,080 6,990 10,160 5,380 7,400 10,540 103.6 142.5 207.2

10.20 5,780 7,950 11,560 6,060 8,330 12,120 116.6 160.3 233.24 1/2 12.60 4,220 5,800 8,430 4,490 5,730 7,500 144.0 198.0 288.0

Fuente: Boletn API 5C2, 21 edicin, Oct. 1999

4.13.7 Acabados

Barnizado (pelcula protectora para conservacin de los tubos en trasladosbajo condiciones especiales o por requerimientos del cliente).

4.13.8 Marcaje

Cada tubo de produccin fabricado por Industrias Unicon, C.A. de acuerdo ala norma API 5CT / ISO 11960 es marcado con al menos la siguienteinformacin:

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4.13.9 Roscado

El servicio de roscado de los tubos de produccin con conexiones API yTenaris Connections, es suministrado directamente por Condusid, C.A., filialde Industrias Unicon, C.A.

4.13.10 Tabla de Productos

API 5CT / ISO11960 8. Edicin

DesignacinComercial

DimetroExterior

PesoExtremos

Lisos

Espesorde Pared

Presin de Prueba(psi)

Tipo

Extremos lisos

Etiqueta 1 Etiqueta 2 mm pulg Kg/m lb/pie mm pulg H-40 J-55 N-80Q

1.900 2.75 48,26 1.900 4,05 2.72 3,68 0.145 STD 4900 6700 9800

3.65 5,41 3.63 5,08 0.200 STD 6700 9300 10000

2 3/8 4.00 60,32 2.375 5,87 3.94 4,24 0.167 STD 4500 6200 9000

4.60 6,61 4.44 4,83 0.190 STD 5100 7000 10000

2 7/8 6.40 73,02 2.875 9,17 6.17 5,51 0.217 STD 4800 6600 9700

3 1/2 7.70 88,90 3.500 11,29 7.58 5,49 0.216 STD 3900 5400 7900

9.20 13,12 8.81 6,45 0.254 STD 4600 6400 9300

10.20 14,76 9.92 7,34 0.289 STD 5300 7300 10000

4 1/2 12.60 114,30 4.500 18,23 12.25 6,88 0.271 STD 3900 5300 7700

NOTAS:

Los tubos de produccin se suministran con extremos lisos en gradosH-40, J-55 y N-80Q. Tanto el tratamiento trmico del N80Q como elservicio de roscado con conexiones API y Tenaris Connections, es

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suministrado a travs de Condusid, C.A., filial de Industrias Unicon,C.A.

Cualquier otra presin de prueba y/o duracin de sta, podr seracordada entre el comprador e Industrias Unicon, C.A.

Todos los productos aqu referidos son suministrados de acuerdo a losrequisitos exigidos por la norma para el Nivel de Especificacin PSL-1.

Para especificaciones relativas al PSL-2 y PSL-3, favor contactarnos atravs de nuestro correo electrnico [email protected]


4.13.11. Tolerancias

Lista de algunas empresas de proveedores de tuberas de produccinen el mundo.

Lista de Valores de la Ronda Pipe.

Fecha dePublicacin

Regin Estndar Std. Nmero Grado Proceso OD (mm) WT (mm) Longitud (m) Stock Visitas

2009-09-10 Corea-Busan API 5CT J-55 REG 139,70 7,55 6,000 1468 43

2009-09-10 Corea-Busan API 5CT J-55 REG 139,70 7,55 6,000 1468 12

2009-06-25 Porcelana API 5CT N-80 REG 244,50 12,00 9,700 71 18

2009-06-25 Porcelana API 5CT J-55 REG 244,50 8,94 12,200 94 12




2009-06-25 Porcelana API 5CT K-55 REG 219,10 8,94 12,200 60 9




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