SMITH Turboperforacion Bolivia 2010 - baixardoc

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Sistemas Turboperforación

Turbinas en la Industria

Turbina a gas propulsora de

bombas o compresores

industriales

Turbina a gasolina

propulsora de aviones

Turbina a vapor propulsora

de embarcaciones Marítimas

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Turbina de Perforación

Es un sistema de rotación de fondo que

convierte la energía del fluido de perforación

en potencia mecánica rotacional, la cual es

directamente transferida a la broca de

perforación.

Neyrfor

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Turbodrill: Nomenclatura

Term Description

T1 Turbodrill with one(1) power section

T2 Turbodrill with two(2) power section

TSXL Turbodrill with Extended Power Section (T1 + 30%)

TSH Turbodrill with a system to counter axial hydraulic thrust

BSA Bearing Section Assembly - Straight Applications

FBS Flexible Bearing Section - Steerable Applications

ABH Adjustable Bent Housing - Field Adjustable

DBS Double Bend Section – Fixed Double Bend

MK1 Constant pressure profile

MK2 Variable pressure profile – Δp drops as RPM slow

MK3 Higher variable pressure profile – Δp drops as RPM slow

Turbodrills - Rangos de Diámetros

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1 Sección Motora

2 Secciones Motoras

1 Sección Motora extendida

3 Secciones

Motoras

• Sección de Rodamientos – Recta o con ‘Bent Housing’ ajustable.

Para mantenimiento, construcción, tumbar ángulo y cambio de dirección en formaciones de mediana dureza a dura

________________________________________________________________________

• Sección de Potencia – 1,2 o 3 secciones de potencia con distintos perfiles de alabes y características de balance de empuje hidráulico.

Más potencia con taladros de menor capacidad de bombeo del fluido de perforación

________________________________________________________________________

• Rotores flexibles

Para trabajos direccionales; construcción o mantenimiento de verticalidad

Configuraciones Disponibles

Sección de Rodamientos

Sección Potencia o Motora

Entrada del Fluido

Partes de la Turbina

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Power Section Bearing Section

Partes de la Turbina

Mk#1 BladesConstant Press. Drop

Higher MW

Mk#2 BladesPressure Drops with Stall

Mk#3 BladesPressure Drops with stall

Light MW, UBD

Turbine Blade Geometry•Wing shapes

•Angle of attack (fluid to blade)

Turbodrill Blade Arrangement•Stator – compression fit, no rotation

relative to turbine housing•Rotor – fixed to shaft

Blade Stages •Stages are stacked throughout tool

•Each stage power is cumulativewith the subsequent stage

-Together all stages drive the shaft.

Aletas/Alabes de la Turbina

Hydraulic Flow Through2 Turbine Stages

1st Stage

2nd Stage

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Aletas/Alabes de la Turbina

Power Section Configuration

T1 TSH T2

MK1

Stages = 86

RPM=1172

Torque=670 ft-lb

Hp = 149

Stages = 112

RPM = 1172

Torque = 847 ft-lb

Hp = 189

Stages = 172

RPM=1172

Torque=1255 ft-lbs

Hp = 280

MK2

Stages = 75

RPM=1000

Torque=745 ft-lbs

Hp = 142

Stages = 100

RPM = 1000

Torque = 961 ft-lb

Hp = 183

Stages = 100

RPM=1000

Torque=1391 ft-lbs

Hp = 265

MK3

Stages = 50

RPM=1452

Torque=750 ft-lbs

Hp = 207

Stages = 100

RPM = 1452

Torque = 1430 ft-lb

Hp = 395

NA

Power at Bit

Turbine power values calculated at, 10ppg OBM, 450gpm (nominal),

Torq

ue

at

Bit

Rig Capabilities

Mu

d W

eig

ht

Configuración del Alabe vs. Aplicación

Bla

de

Typ

e

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• Radial Bearings

2 types HNBR Elastomer and Metallic

Elastomer are used up to 375° F and in WBM applications

Metallic’s are used for high temperatures and OBM applications

Intermediate bearings are used to absorb the radial thrust produced by the blades and to keep the shaft concentric.

n

Sección de Potencia

Intermediate

Radial Bearings

• Power section recap

Contains the blade stages and radial bearings

Blade stages drive the shaft

Radial bearings maintain concentric rotation

Blades and bearings are compression fit in the

power section

Multiple power sections can be configured

Turbodrill Power Section - Recap

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3 Types of Bearing sections:• BSA – Bearing Section Assembly

•Used for straight hole applications

• FBS – Flexible Bearing Section

•Contains an Adjustable Bent Housing (ABH) for

directional applications.

BSA

FBS



3 Types of Bearing sections:• DBS – Double Bend Section

• Used for directional applications requiring higher build rates

Double Bent Housing2.4 ft

4.16 ft

Interchangeable Bottom Bearing

Stabilizer

2 x .75° Bends for 1.5°2 x .85° Bends for 1.7°2 x 1.0° Bends for 2.0°

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Mechanical PDC

Thrust Bearings

Hydraulic PDC

Thrust Bearings

Frame Moving Disc

Fixed Disc

Spring

• PDC Thrust Bearings Support Axial Loads.

• Hydraulic bearings absorb internal thrust

• Mechanical bearings absorb WOB

Low friction diamond to diamond contact area.

Temperature and abrasion resistant.

(up to 600°F)

PDC Thrust Bearing Assembly



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Lower Radial Bearing

Intermediate

Radial Bearings

• Radial Bearings 2 types HNBR Elastomer and Metallic

Elastomer are used up to 375° F and in WBM applications

Metallic’s are used for high temperatures and OBM applicationsRadial Bearings are used tokeep the shaft running concentric


FBS- Adjustable Bent Housing

- Settings Range - 0° to 1.5°

DLS capability is affected by the bent housing setting plus the stabilizer configuration


Documents

SMITH Turboperforacion Bolivia 2010 - baixardoc