CA2587593A1 - Perforation logging tool and method - Google Patents

Perforation logging tool and method Download PDF

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Publication number
CA2587593A1
CA2587593A1 CA002587593A CA2587593A CA2587593A1 CA 2587593 A1 CA2587593 A1 CA 2587593A1 CA 002587593 A CA002587593 A CA 002587593A CA 2587593 A CA2587593 A CA 2587593A CA 2587593 A1 CA2587593 A1 CA 2587593A1
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CA
Canada
Prior art keywords
sensors
wellbore
flow
casing
sensor array
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002587593A
Other languages
French (fr)
Other versions
CA2587593C (en
Inventor
John Mervyn Cook
Ashley Bernard Johnson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schlumberger Canada Ltd
Original Assignee
Schlumberger Canada Limited
John Mervyn Cook
Ashley Bernard Johnson
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Schlumberger Canada Limited, John Mervyn Cook, Ashley Bernard Johnson filed Critical Schlumberger Canada Limited
Publication of CA2587593A1 publication Critical patent/CA2587593A1/en
Application granted granted Critical
Publication of CA2587593C publication Critical patent/CA2587593C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/119—Details, e.g. for locating perforating place or direction

Abstract

The present invention provides an apparatus an methods for detecting the behavior of perforations in a wellbore casing, the apparatus including a sensor array (10) movable within the internal diameter of the casing, the sensor array having one or more sensors (16) located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.

Claims (23)

1. An apparatus for detecting the behaviour of perforations in a wellbore casing, the wellbore casing having an interior surface defining an internal diameter, the apparatus comprising:

a sensor array movable within the internal diameter of the casing, the sensor array having one or more sensors located proximate the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore.
2. The apparatus of claim 1, wherein the sensor array is mounted on a flexible network able to conform to the internal'diameter of the casing,
3. The apparatus of claim 2, wherein the network is a wire mesh screen.
4. The apparatus of claim 2, wherein the network is an expandable screen.
5. The apparatus of claim 1, wherein the sensor array is mounted on a centralized mandrel.
6. The apparatus of claim 1, wherein the sensor array is mounted on a closed network that prevents fluid flow therethrough.
7. The apparatus of claim 6, wherein the closed network comprises one or more cylindrical belts.
8. The apparatus of claim 6, wherein the closed network comprises one or more overlapping leaves.
9. The apparatus of claim 1, further comprising a guard ring placed around the one or more sensors.
10. The apparatus of claim 1, wherein the one or more sensors are integrated on a single chip.
11. The apparatus of claim 1, wherein the one or more sensors are hot film flow sensors.
12. The apparatus of claim 1, wherein the one or more sensors are temperature sensors.
13. The apparatus of claim 1, wherein the one or more sensors are fluid conductivity sensors.
14. The apparatus of claim 1, wherein the one or more sensors are dielectric constant sensors.
15. The apparatus of claim 1, wherein the one or more sensors are selected from viscosity sensors, density sensors, chemical sensors, and piezoelectric sensors.
16. The apparatus of claim 1, wherein the sensor array comprises one or more sensor rings having one or more sensors located thereon.
17. The apparatus of claim 16, wherein the one or more sensor rings are rotated in relation to the adjacent sensor ring.
18. The apparatus of claim 1, wherein the one or more sensors are mounted on extendable arms.
19. The apparatus of claim 1, wherein the one or more sensors are adapted to sense local properties.
20. The apparatus of claim 1, wherein the one or more sensors have a directional sensitivity and are oriented such as to sense flow as entering the wellbore from the perforation.
21. The apparatus of claim 20, having flow diverting surfaces oriented such that flow as' entering the wellbore from the perforation is directed onto the one or more sensors.
22. The apparatus of claim 21, wherein the flow diverting surface separates at least partially the flow as entering the wellbore from the perforation from the main flow through the wellbore.
23. A method of detecting the behavior of perforations in a wellbore casing, the wellbore casing having an interior surface defining an internal diameter, the apparatus comprising:

- moving a sensor array within the internal diameter of the casing, the sensor array having one or more sensors located proximate' the internal surface of the casing with the sensors being located or oriented such that properties of flow from a proximate perforation can be distinguished from properties of a main flow through the wellbore;

- receiving location based data from the one or more sensors; and - mapping the location based data.
CA002587593A 2004-11-17 2005-11-16 Perforation logging tool and method Expired - Fee Related CA2587593C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0425308.4 2004-11-17
GB0425308A GB2420357B (en) 2004-11-17 2004-11-17 Perforating logging tool
PCT/GB2005/004416 WO2006054074A1 (en) 2004-11-17 2005-11-16 Perforation logging tool and method

Publications (2)

Publication Number Publication Date
CA2587593A1 true CA2587593A1 (en) 2006-05-26
CA2587593C CA2587593C (en) 2010-02-02

Family

ID=33523850

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002587593A Expired - Fee Related CA2587593C (en) 2004-11-17 2005-11-16 Perforation logging tool and method

Country Status (7)

Country Link
US (1) US7784339B2 (en)
CA (1) CA2587593C (en)
EA (1) EA011190B1 (en)
GB (1) GB2420357B (en)
MX (1) MX2007005544A (en)
NO (1) NO20072311L (en)
WO (1) WO2006054074A1 (en)

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Also Published As

Publication number Publication date
US7784339B2 (en) 2010-08-31
EA011190B1 (en) 2009-02-27
EA200701074A1 (en) 2007-10-26
US20080307877A1 (en) 2008-12-18
GB2420357B (en) 2008-05-21
WO2006054074A1 (en) 2006-05-26
GB0425308D0 (en) 2004-12-15
NO20072311L (en) 2007-06-15
MX2007005544A (en) 2007-07-09
GB2420357A (en) 2006-05-24
CA2587593C (en) 2010-02-02
GB2420357C (en)

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