well pad operations - pcp

© 2013 Cairn India Limited

RJ-ON-90/1

Bhagyam Operations Overview

© 2013 Cairn India Limited 2

0 10 205km

Aishwariya

Bhagyam Well Pads

Export Oil Pipeline

Rajasthan Integrated Development Overview

Raageshwari Gas Terminal (RGT) & Well Pads

Thumbli Water Field

Mangala Process Terminal (MPT) & Well pads

Barmer .

Guda Malani .


Cumulative oil Production : 20.1 Million BBLs.

Water Injection cumulative has crossed: 32 M BBls

Crossed 3.1 million LTI free Man-hours of operation

870 days LTI free operation since commissioning

Green belt development- 8000 saplings planted this year

Production and HSE highlights.


Well Pad Clusters

BWP-04 BWP-05 BWP-06 BWP-07 BWP-10 BWP-03 BWP-13 BWP-02 BWP-14 BWP-08 BWP-11PW-09 PW-02 PW-13 PW-02 PW-03 PW-16 PW-12 PW-05 PW-07 PW-01 PW-01IW-01 IW-02 IW-01 IW-02 IW-03 IW-01 IW-00 IW-03 IW-00 IW-02 IW-02

IW-06

Cluster-A Cluster-B Cluster-C

BWP-15PW-03

BWP-01PW-08IW-01

BWP-09PW-08IW-00

BWP-12PW-06IW-02


MPP Pumps

CAPACITY ( Liquid/Gas) : 55000 BPD/ 1.466 Mmscfd

SUCTION PRESSURE : 5.5 Bar

DISCHARGE PRESSURE : 16.8 Bar


Water Injection Flowlines

BWP04 BWP06PW-09 PW-13IW-02 IW-01

BWP13 BWP03 BWP10 BWP12 8" BWP07 BWP05PW-16 PW-09 PW-03 PW-06 10" PW-02 PW-02IW-00 IW-01 IW-00 IW-02 IW-02 IW-02

6" 6" 10" 6" 8"CORRIDOR-A (18")

24"

CORRIDOR-B(18")10" 10" 6" 6" 10"

BWP01 BWP02 BWP14 BWP09 BWP11 BWP8NPW-08 PW-05 PW-02 PW-03 PW-01 PW-01IW-01 IW-03 IW-00 IW-00 IW-02 IW-02

WATER INJECTION LINES SCHEMATIC

MPT

GATHERING PADBWP-15PW-03IW-03


Wells Status

Producers: Total Wells : 94 PCP Wells : 84 Jet Pumps : 10

Injectors: Total Wells: 28


BHAGYAM WELL COMPLETION

Wellhead

Suspension of Casing & Tubing Flanging of Fluid Flow device/ X-mas

Tree Hydraulic communication with annulus

X-Mas Tree

A system of valves that control physical or hydraulic access into the tubing string or annulus “A”


Christmas Tree The PCP Christmas tree assembly

comprises of Master valve, BOP, kill wing valve and Drive head on top.

At the bottom we have tubing hanger which has got chemical injection connection and down hole gauge cable running up to the downhole.

The wing XSV is installed for the slam shut of the flow arm in case of trip scenario.


Key Consideration for Safety Fire & Gas detection Facilities at Field Building Fire & Gas detection & suppression system Manual Call Points PAGA System Access Control CCTV Coverage Dedicated Fire Tender with Crew First Aid centre with dedicated Ambulance PTW System in Place Oil Spill response Facilities IRC & ERT for Emergency Management


BHAGYAM WELL COMPLETION

Casing Hole stabilization Protection of fresh water Zonal Isolation

Prevent water migration to producing zones Confine production to the wellbore Isolate over-pressured and under-pressured

formation

Casing Types:

Casing Type Oil Well Injection Well

Conductor Casing13 3/8" 9 5/8"

Surface Casing 9 5/8" 7"

Production Casing7" 4 1/2"


PCP (Progressive Cavity Pump)

PCP: A Progressive cavity pump is a type of positive displacement pump and is also known as a progressing cavity pump, eccentric screw

pump or cavity pump.

PC Pumping Systems typically consist of the following components: Surface Equipment Drive head assembly VFD (Variable Frequency Drive) Down hole gauge Panel (Geophysical Research Company) BOP (Blow Out Preventer), Flow Tee – Kombi Tree Down hole equipment Stator (Stationary with tubing) Rotor (Internal & Rotary with drive rods)


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PCP System Configuration Standard Components

Downhole Equipment

Belts & Sheaves

Surface Drive

Stuffing Box

Pumping Tee

Electric Motor

Polished Rod

Sucker Rodsw/ Couplings

Surface Equipment

PC Pump Stator

PC Pump Rotor

No-Turn Tool

Tubing String

Tagbar

Sucker Rodsw/ Couplings


Polish Rod and Clamp arrangement

The entire series of Polish rod, Sucker rod and Rotor is suspended in the downhole through the Polish rod clamp.

Sucker rods transfers the power from the prime mover ( Motor ) to Rotor.


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PC Pumping System

PCP Systems typically consist of a surface drive, a sucker rod string, a production tubing string and, of course, the downhole Progressing Cavity Pump.

The pump comprises two key elements:A single helical-shaped ROTOR that turns inside a

double helical elastomer-lined STATOR

In most cases, the stator is attached to the bottom of a production tubing string and the rotor is attached to a drive string that is suspended and rotated by the surface drive.


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Progressing Cavity PumpGeneral Features

Classified as a single rotor, internal helical gear, positive displacement pump

Consists in two key components: Rotor:

Is a high strength steel component externally machined as a helix of “n” lobes and coated with chrome or an alternative hard material.

Only moving part. Stator:

Generally made with elastomer (or rubber) with and internal shape as an helix of “n+1” lobes. This rubber body is bonded to the interior of a steel tube.

Stationary piece.


VFD & GRC Panel VFD , variable frequency drive is a

device which is used to control the speed by adjusting frequency of the motor input power supply.

The LCD screen display’s the parameters related to Motor i.e. frequency, current, avg voltage etc.

The Down hole gauge (GRC) panel is installed to monitor the well downhole parameters like Pump intake/discharge temperature & Pressure locally.

Supplied by Unico


Kombi-Tee Functions

Provides a solid platform to mount the PCP Drivehead

Side ports direct the well production down the flow line

BOP seals off wellbore to allow servicing of the surface equipment

Polish Rod Clamp suspends the rod string and resists torque, allowing for safe maintenance and easier removal and installation of the Drivehead

By applying 500 ft-lbs of torque to the lock out rams, they will suspend ≥39000 lbs of axial load and resist ≥1000 ft-lbs of torque


Jet Pumps

• The actual working components of the jet pump are the nozzle, throat and diffuser.

• These components are assembled in a variety of configurations and materials to suit the production requirements and downhole environment.

How the Jet Pump Works• Power fluid at high pressure (low velocity) is converted to a low-

pressure (high velocity) jet by the nozzle.• The pressure at the entrance of the throat becomes lower as

the power fluid rate is increased. Due to this lower pressure, fluid is drawn in from the wellbore.

• The suction fluid becomes entrained with the high velocity jet and the pumping action then begins.

• After mixing in the throat, the combined power fluid and suction fluid is slowed down by the diffuser. Because the velocity is reduced, the pressure increases – rising to a value sufficient to pump the fluid to the surface.

A full range of nozzle and throat sizes are available to allow power fluid rate and pressure to be varied to meet various requirements.


Thank You

well pad operations - pcp

Engineering