Diagnosing Well Integrity, An Industry Challenge

© 2017 Halliburton. All rights reserved.

Diagnosing Well Integrity, An Industry

Challenge

David Lavery

Technical Sales Advisor

Wireline and Perforating

2 2016 TECH MKT_2016-MKTG-GBD-2916 | © 2016 Halliburton. All rights reserved. EAR 99


Corrosion Management Impact

Operations Unit A

Operations Unit B

Aggressive

Corrosion monitoring

Corrosion mitigation

Planning

Minimum

Corrosion monitoring

Corrosion mitigation

Planning

3 200+

Spills/leaks due to corrosion

FIELD XYZ

SPE 168065 NACE 04441


Monitoring

Inspection Planning

Intervention Planning

FINDING ISSUES

BEFORE THEY GET BIG

& EXPENSIVE

Diagnosing Well Integrity – An Industry Challenge

Top 3 Integrity Issues

Shallow Flow

Mechanical Leaks

Corrosion Leaks

Diagnostic Challenges

Location

Full Description

WHEN

INTEGRITY

FAILS

Metal loss based on

actual EPX™

V results

LOG

Corrosion Rate

FAILURE PROBABLE

TIME

Me

tal T

hic

kn

ess

% M

eta

l R

em

ain

ing


Well Integrity on Mature Assets

Types of Integrity Issues

Internal:

Corrosion

• Electromechanical

• Chemical (organic, acetic acids, …)

• Stress

Damage

• Erosion

• Wear

Which cause pitting, general corrosion,

and cracks.

External:

Corrosion

• Electromechanical

• Electrochemical

• Chemical

• Bacterial

• Stress

Damage

• Stress

• Erosion

• Mechanical


Well Integrity Monitoring Challenge

Growing number of aging wells

Industry emphasis well integrity monitoring

Most services only cover first tubular barrier

May provide internal diameter and thickness measurements

Unsatisfactory for evaluation of outer barriers

Current Limitations

Outer barriers shielded by the inner ones

Signal penetration and measurement in concentric barriers is

required

WHAT ABOUT

OUTER CASING??

ULTRASONIC

INTERNAL

CALIPER

MECHANICAL

CALIPER

ULTRASONIC

THICKNESS

MAGNETIC

THICKNESS

© 2017 Halliburton. All rights reserved.

Electromagnetic Pipe Xaminer® V

EPX™ V


Phased Corrosion Detection Tools

High frequencies employed for innermost pipe inspections

Low frequencies employed for outermost pipe inspections

sine wave

core

Pipe wall

Magnetic field

TX coil

RX coil

eddy currents


Corrosion Inspection Tool: Configuration and Measurements

Traditional frequency-domain tools operate in

the remote-field EC regime; only sensitive to

the total metal thickness.

The corrosion inspection tool measures the EM

field in the three zones; from this complete

information and by using an inversion method,

the thickness of each individual pipe is

obtained.

Transmitter emits continuous wave at multiple

frequencies

Max eight freq. for primary array

Max eight freq. for high-resolution array

Receivers record complex-valued

measurements (amplitude and phase).

SPE-188932-MS • New High-Definition Frequency Tool for Tubing and Multiple Casing Corrosion Detection • Ahmed Fouda


Specifications Electromagnetic Pipe Xaminer® V (EPXTM V) Performance Specifications

Benefits HDF (High-Definition Frequency) technology

provides accurate results

1 to 5 concentric pipes

One-trip diagnostics, reduces operating costs

Diagnose metal loss for each pipe

Tool OD 1-11/16 in. (42.86 mm)

15,000 psi, 350°F

Running Combinable

Continuous

SRO

Memory


Full-Resolution Array Optimization for Overlapping Defects

Overlapping defects in pipes 4 and 5

blue: actual

red: inverted


Corrections – Example 1 Red: before ecc correction.

Black: after ecc correction.

Pipe Eccentering Corrections

Inner pipe automatic

External pipes

Identified

Corrected

Collar Correction Included


Field Log

VDL shows collars

2016 TECH MKT_2016-MKTG-GBD-2916 | © 2016 Halliburton. All rights reserved. EAR 99

Log Data


A

C

B

A, B, and C reference points for depth matching.






7” pipe– logged when exposed, over 6 yrs ago.


Collar effect in

3rd string

removed

when

compared

with original

log.

EPX V

MFC and

EPXV appear

to be a few

feet off


Analysis Report

General well information

Summary of well integrity condition

Overall condition of each tubular

Analysis profile of well

Charts for further analysis

Detailed joint-by-joint analysis record for each string

3D view of points of interest



Documents

Diagnosing Well Integrity, An Industry Challenge