EP2825728A2 - Aussenentlüftung eines zufluss-tracers in produktionsbohrlöchern - Google Patents

Aussenentlüftung eines zufluss-tracers in produktionsbohrlöchern

Info

Publication number
EP2825728A2
EP2825728A2 EP13712466.5A EP13712466A EP2825728A2 EP 2825728 A2 EP2825728 A2 EP 2825728A2 EP 13712466 A EP13712466 A EP 13712466A EP 2825728 A2 EP2825728 A2 EP 2825728A2
Authority
EP
European Patent Office
Prior art keywords
tracer
base pipe
inflow
perforated
production fluid
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.)
Withdrawn
Application number
EP13712466.5A
Other languages
English (en)
French (fr)
Inventor
Daniel Francis Alan Hunt
Luis Carlos Baralho BIANCO
Christian André ANDRESEN
Jomar SKALMERAS
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.)
Chevron USA Inc
Original Assignee
Chevron USA Inc
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 Chevron USA Inc filed Critical Chevron USA Inc
Publication of EP2825728A2 publication Critical patent/EP2825728A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B27/00—Containers for collecting or depositing substances in boreholes or wells, e.g. bailers, baskets or buckets for collecting mud or sand; Drill bits with means for collecting substances, e.g. valve drill bits
    • E21B27/02—Dump bailers, i.e. containers for depositing substances, e.g. cement or acids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B43/02—Subsoil filtering
    • E21B43/04—Gravelling of wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B47/11—Locating fluid leaks, intrusions or movements using tracers; using radioactivity

Definitions

  • the disclosure relates to systems and methods facilitating outward venting of inflow tracer in a production well such that inflow tracer is prevented from being communicated directly into a base pipe of the production well from a tracer medium configured to emit the inflow tracer.
  • tracers have been widely used by the oil industry in production wells to identify which zones are contributing and/or other information associated with a well.
  • Exemplary purposes of using tracers installed within tracer carrier systems of production wells include one or more of determining an estimate of a contributing length, inflow profile of oil, specific location(s) of water breakthrough, and/or other purposes. Such information helps to understand the reservoir and waterflood performance.
  • tracers are installed inside a sand screen, which means the tracers can diffuse into the base pipe (i.e., inward venting).
  • An inward vented system allows the tracer to diffuse into the base pipe during a shut down and in normal steady conditions. As such, the tracers can be detected at Earth's surface regardless of the region where the tracers are installed.
  • the space between the sand screen mesh and the outer shroud may be very small meaning that many sand screens might need to be filled with tracers to meet the desired objectives of using the tracers.
  • estimating the contributing length can be very difficult as there are always tracers at the surface while another part of the well is contributing upstream of the tracer location.
  • the spatial resolution of existing approaches is generally several tens of meters.
  • One aspect of the disclosure relates to a system configured to facilitate flushing a localized inflow tracer from a gravel pack surrounding a base pipe of a production well by outwardly venting the inflow tracer.
  • the system comprises a base pipe and tracer carrier.
  • the base pipe is configured to be disposed within a gravel pack.
  • the base pipe includes a non-perforated section disposed adjacent to one or more perforated sections. Individual ones of the one or more perforated sections are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the tracer carrier is configured to be disposed circumferentially about at least a portion of the non-perforated section of the base pipe.
  • the tracer carrier is further configured to carry a tracer material.
  • the tracer material is configured to release an inflow tracer into production fluid within the gravel pack proximate to the non-perforated section of the base pipe such that the inflow tracer is flushed from the gravel pack into individual ones of the one or more perforated sections of the base pipe and transported with the production fluid.
  • the non-perforated section of the base pipe substantially prevents release of the tracer directly from the tracer carrier to within the base pipe.
  • Another aspect of the disclosure relates to a method for constructing a system configured to facilitate flushing a localized inflow tracer from a gravel pack surrounding a base pipe of a production well by outwardly venting the inflow tracer.
  • the method comprises disposing a tracer material circumferentially about at least a portion of a non- perforated section of a base pipe configured to be disposed within a gravel pack.
  • the non-perforated section of the base pipe is adjacent to one or more perforated sections of the base pipe.
  • Individual ones of the one or more perforated sections are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the tracer material is configured to release an inflow tracer.
  • the method comprises surrounding the tracer material with a perforated shroud configured to communicate the inflow tracer from the tracer material into production fluid within the gravel pack proximate to the non-perforated section of the base pipe such that, in use, the inflow tracer is flushed from the gravel pack into individual ones of the one or more perforated sections of the base pipe and transported with the production fluid.
  • a perforated shroud configured to communicate the inflow tracer from the tracer material into production fluid within the gravel pack proximate to the non-perforated section of the base pipe such that, in use, the inflow tracer is flushed from the gravel pack into individual ones of the one or more perforated sections of the base pipe and transported with the production fluid.
  • Yet another aspect of the disclosure relates to a method for flushing a localized inflow tracer from a gravel pack surrounding a base pipe of a production well.
  • the method comprises installing a base pipe such that the base pipe is disposed within a gravel pack.
  • the base pipe includes a non-perforated section disposed adjacent to one or more perforated sections. Individual ones of the one or more perforated sections are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the base pipe has a tracer carrier disposed circumferentially about at least a portion of the non-perforated section of the base pipe.
  • the tracer carrier is configured to carry a tracer material.
  • the tracer material is configured to release an inflow tracer.
  • the method comprises, during production, flushing the inflow tracer within the gravel pack into individual ones of the one or more perforated sections of the base pipe.
  • the method comprises transporting the production fluid with the flushed inflow tracers toward the Earth's surface via the base pipe.
  • FIG. 1 illustrates a system configured to facilitate outward venting of inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • FIGS. 2A, 2B, 2C, and 2D illustrate a flush out process of a system having outward vended inflow tracer, in accordance with one or more implementations.
  • FIG. 3 illustrates a method for constructing a system configured to facilitate outward venting of inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • FIG. 4 illustrates a method for outwardly venting inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • FIG. 1 illustrates a system 100 configured to facilitate outward venting of inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • An outward vented system may improve technical analysis of a production well as the inflow tracer is flushed from the region surrounding the base pipe, which may include a gravel pack and/or other permeable material. For example, the manner in which the inflow tracer is flushed can help distinguish differences in inflow that would not be seen with an inward vented system.
  • some embodiments include a relatively short tracer carrier (e.g., about 5-10 meters), which places the inflow tracer in a highly localized area.
  • a relatively short tracer carrier e.g., about 5-10 meters
  • Existing approaches that place the tracer in a sand screen can result in the tracer being spread across 50 or more meters of reservoir interval. Having the tracer placed in a relatively short tracer carrier (e.g., about 5-10 meters), which places the inflow tracer in a highly localized area.
  • concentrated area can refine special resolution of the technical analysis and can allow for more tracer types to be used. Furthermore, some embodiments facilitate use of tracers having a relatively long lifetime.
  • system 100 includes a base pipe 102 configured to be disposed within a gravel pack 104.
  • gravel pack 104 forms an annulus about base pipe 102.
  • the gravel pack 104 may be replaced partially or wholly by one or more other permeable materials, according to some embodiments.
  • the base pipe 102 includes a non-perforated section 106 disposed adjacent to one or more perforated sections 108.
  • the non-perforated section 106 of the base pipe 102 is not permeable to liquid.
  • the perforated sections 108 are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the production fluid can include one or more of oil, water, and/or other fluids.
  • the system 100 includes a tracer carrier 1 10, in accordance with some embodiments.
  • the tracer carrier 1 10 is configured to be disposed adjacent to non- perforated section 106 of base pipe 102.
  • tracer carrier 1 10 is configured to be disposed circumferentially about at least a portion of non-perforated section 106 of base pipe 102.
  • the tracer carrier 1 10 is configured to carry a tracer material 1 12.
  • the tracer material 1 12 is configured to release inflow tracer into production fluid within a region of gravel pack 104 proximate to non-perforated section 106 of base pipe 102.
  • inflow tracer is released by tracer material 1 12 responsive to production flow and/or a component of the production fluid coming into direct contact with tracer material 1 12.
  • tracer carrier 1 10 comprises a perforated shroud 1 14 configured to be disposed circumferentially about at least a portion of non-perforated section 106 of base pipe 102.
  • a gap is formed between an inner diameter of perforated shroud 1 14 and non-perforated section 106 of base pipe 102.
  • the tracer material 1 12 is disposed within the gap.
  • tracer material 1 12 is wrapped around non-perforated section 106 of base pipe 102.
  • the perforated shroud 1 14 is configured to communicate inflow tracer from tracer material 1 12 into the production fluid within the gravel pack 104 proximate to non-perforated section 106 of base pipe 102.
  • tracer carrier 1 10 has a longitudinal length less than about 10 meters, or even less than about 5 meters.
  • at least one slip ring 1 16 is disposed about non-perforated section 106 of base pipe 102.
  • the slip ring 1 16 is configured to establish a gap between non-perforated section 106 of base pipe 102 and an inner diameter of perforated shroud 1 14.
  • the tracer material 1 12 is disposed within the gap.
  • inflow tracer is flushed from gravel pack 104 into individual ones of the one or more perforated sections 108 of base pipe 102 and transported with the production fluid via base pipe 102.
  • the inflow tracer is prevented from being flushed directly from tracer carrier 1 10 into base pipe 102 due to a lack of permeability of non-perforated section 106 of base pipe 102.
  • the inflow tracer flushed into base pipe 102 and transported with the production fluid is detectable to determine one or more characteristics associated with the production well.
  • Exemplary characteristics include one or more of identification of contributing zones of a reservoir, reservoir depletion, reservoir permeability, production fluid properties, expected operating conditions, contributing length, inflow profile of production fluid, location of water breakthrough, reservoir performance, waterflood performance, and/or other characteristics associated with the production well.
  • FIGS. 2A, 2B, 2C, and 2D illustrate a flush out process of a system 200 having outward vended inflow tracer 202, in accordance with one or more implementations.
  • the system 200 may be the same as or similar to system 100 described in connection with FIG. 1 .
  • FIG. 2A illustrates system 200 subsequent to shut in. Shut in describes when a production well is not producing, but is capable of producing.
  • inflow tracer 202 is distributed similar as during production.
  • FIG. 2B illustrates system 200 after a duration of time since shut in. Such a duration may be several hours or another amount of time.
  • the depiction of system 200 in FIG. 2B assumes low flow activity in the gravel pack during shut in.
  • inflow tracer 202 is released into the production fluid surrounding the tracer carrier 204, creating a high-concentration tracer shot as inflow tracer release is typically independent from the velocity of surrounding fluids.
  • a concentration of inflow tracer within the base pipe remains about the same as for steady state production prior to shut in.
  • FIG. 2C illustrates system 200 when production has begun after the shut-in period.
  • Arrows 206 indicate a direction of flow of the production fluid being transported by system 200.
  • the high-concentration tracer shot will be flushed out through the gravel pack into the base pipe. This flush-out may be observed in technical analysis as a high-concentration peak of inflow tracer that declines over time.
  • FIG. 2D illustrates system 200 after a period of stable production. Here, the concentration of inflow tracer stabilizes at a constant level.
  • samples of the production fluid are taken at the surface to determine the presence and/or concentration of a particular inflow tracer.
  • the tracer response can be analyzed from the samples to understand how that particular inflow tracer was flushed out.
  • Using several different types of inflow tracers throughout the producing interval(s) of the production well allows an understanding of the inflow response throughout the production well.
  • the space or gap included in exemplary embodiments of the tracer carrier 1 10 allows for a relatively large amount of tracer material to be used so that the inflow tracer can last for a period of time, which might extend to 5 or more years. As such, inflow tests can be repeated periodically to monitor the inflow characteristics with time, in accordance with some embodiments.
  • FIG. 3 illustrates a method 300 for constructing a system configured to facilitate outward venting of inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • the operations of method 300 presented below are intended to be illustrative. In some embodiments, method 300 may be accomplished with one or more additional operations not described, and/or without one or more of the operations discussed. Additionally, the order in which the operations of method 300 are illustrated in FIG. 3 and described below is not intended to be limiting.
  • a tracer material (e.g., tracer material 1 12) is disposed circumferentially about at least a portion a non-perforated section (e.g., non-perforated section 106) of a base pipe (e.g., base pipe 102).
  • disposing the carrier material circumferentially about at least a portion of the non- perforated section of the base pipe includes wrapping the carrier material around the non-perforated section of the base pipe.
  • the base pipe is configured to be disposed within a gravel pack (e.g., gravel pack 104).
  • the gravel pack may form an annulus about the base pipe, in some embodiments.
  • the non-perforated section of the base pipe is adjacent to one or more perforated sections (e.g., perforated sections 108) of the base pipe.
  • Individual ones of the one or more perforated sections are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the tracer material is configured to release an inflow tracer.
  • At an operation 304, at least one slip ring (e.g., slip ring 1 16) is disposed about the non-perforated section of the base pipe.
  • the at least one slip ring is configured to establish a gap between the non-perforated section of the base pipe and an inner diameter of a perforated shroud (e.g., perforated shroud 1 14).
  • the tracer material is disposed within the gap.
  • the tracer material is surrounded with the perforated shroud.
  • the perforated shroud has a longitudinal length less than about 10 meters.
  • the perforated shroud is configured to communicate the inflow tracer from the tracer material into production fluid within the gravel pack proximate to the non-perforated section of the base pipe.
  • the inflow tracer is prevented from being flushed directly from the tracer carrier into the base pipe due to a lack of permeability of the non-perforated section of the base pipe.
  • FIG. 4 illustrates a method 400 for outwardly venting inflow tracer such that inflow tracer is prevented from being communicated directly into a base pipe of a production well from a tracer medium configured to emit the inflow tracer, in accordance with one or more embodiments.
  • the operations of method 400 presented below are intended to be illustrative. In some embodiments, method 400 may be accomplished with one or more additional operations not described, and/or without one or more of the operations discussed. Additionally, the order in which the operations of method 400 are illustrated in FIG. 4 and described below is not intended to be limiting.
  • a base pipe (e.g., base pipe 102) is installed such that the base pipe is disposed within a gravel pack (e.g., gravel pack 104).
  • the gravel pack may form an annulus about the base pipe, in some embodiments.
  • the base pipe includes a non-perforated section (e.g., non-perforated section 106) disposed adjacent to one or more perforated sections (e.g., perforated sections 108). Individual ones of the one or more perforated sections are configured to communicate production fluid from the gravel pack into the base pipe to facilitate transporting the production fluid to Earth's surface.
  • the base pipe has a tracer carrier (e.g., tracer carrier 1 10) disposed circumferentially about at least a portion of the non-perforated section of the base pipe.
  • the tracer carrier is configured to carry a tracer material (e.g., tracer material 1 12).
  • the tracer material is configured to release an inflow tracer.
  • the inflow tracer within the gravel pack is flushed into individual ones of the one or more perforated sections of the base pipe.
  • a high tracer concentration shot may be transported with the production fluid when the inflow tracer is first flushed from the gravel pack.
  • the inflow tracer is prevented from being flushed directly from the tracer carrier into the base pipe due to a lack of permeability of the non-perforated section of the base pipe.
  • the production fluid with the flushed inflow tracer is transported toward the Earth's surface via the base pipe.
  • the inflow tracer transported with the production fluid is detected to determine one or more characteristics associated with the production well.
  • characteristics associated with the production well may include one or more of identification of contributing zones of a reservoir, reservoir depletion, reservoir permeability, production fluid properties, expected operating conditions, contributing length, inflow profile of production fluid, location of water breakthrough, reservoir performance, waterflood performance, and/or other characteristics.
  • (32) Although the disclosure has been described in detail for the purpose of illustration based on what is currently considered to be the most practical and preferred embodiments, it is to be understood that such detail is solely for that purpose and that the disclosure is not limited to the disclosed embodiments, but, on the contrary, is intended to cover modifications and equivalent arrangements that are within the spirit and scope of the appended claims. For example, it is to be understood that the present disclosure contemplates that, to the extent possible, one or more features of any embodiment can be combined with one or more features of any other embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
  • Mechanical Engineering (AREA)
EP13712466.5A 2012-03-15 2013-03-14 Aussenentlüftung eines zufluss-tracers in produktionsbohrlöchern Withdrawn EP2825728A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261611495P 2012-03-15 2012-03-15
PCT/US2013/031491 WO2013138622A2 (en) 2012-03-15 2013-03-14 Outward venting of inflow tracer in production wells

Publications (1)

Publication Number Publication Date
EP2825728A2 true EP2825728A2 (de) 2015-01-21

Family

ID=47997977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13712466.5A Withdrawn EP2825728A2 (de) 2012-03-15 2013-03-14 Aussenentlüftung eines zufluss-tracers in produktionsbohrlöchern

Country Status (3)

Country Link
US (1) US20150041121A1 (de)
EP (1) EP2825728A2 (de)
WO (1) WO2013138622A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013062417A1 (en) * 2011-10-28 2013-05-02 Resman As Method and system for using tracer shots for estimating influx volumes of fluids from different influx zones to a production flow in a well
RU2602857C2 (ru) * 2011-12-21 2016-11-20 Линк Энерджи Лтд Обсадной хвостовик для подземной газификации угля
WO2016154334A1 (en) * 2015-03-24 2016-09-29 Weatherford Technology Holdings, LLC. Apparatus for carrying chemical tracers on downhole tubulars, wellscreens, and the like
US9715036B2 (en) 2015-06-15 2017-07-25 Baker Hughes Incorporated Wellbores including carbon quantum dots, and methods of forming carbon quantum dots
US10280737B2 (en) 2015-06-15 2019-05-07 Baker Hughes, A Ge Company, Llc Methods of using carbon quantum dots to enhance productivity of fluids from wells
US10413966B2 (en) 2016-06-20 2019-09-17 Baker Hughes, A Ge Company, Llc Nanoparticles having magnetic core encapsulated by carbon shell and composites of the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE337550T1 (de) * 2000-04-26 2006-09-15 Resman As Überwachung eines reservoirs
AU2001294412A1 (en) * 2000-07-21 2002-02-05 Sinvent A/S Combined liner and matrix system, use of the system and method for control and monitoring of processes in a well
US6749024B2 (en) * 2001-11-09 2004-06-15 Schlumberger Technology Corporation Sand screen and method of filtering
WO2008049835A1 (en) * 2006-10-24 2008-05-02 Shell Internationale Research Maatschappij B.V. System for determining sealing in a wellbore
US8540032B2 (en) * 2007-06-21 2013-09-24 Swelltec Limited Apparatus and method with hydrocarbon swellable and water swellable body
US8567497B2 (en) * 2009-07-10 2013-10-29 Schlumberger Technology Corporation Apparatus and methods for inserting and removing tracer materials in downhole screens
US8230731B2 (en) * 2010-03-31 2012-07-31 Schlumberger Technology Corporation System and method for determining incursion of water in a well
US20110257887A1 (en) * 2010-04-20 2011-10-20 Schlumberger Technology Corporation Utilization of tracers in hydrocarbon wells
US8322414B2 (en) * 2010-05-25 2012-12-04 Saudi Arabian Oil Company Surface detection of failed open-hole packers using tubing with external tracer coatings
AU2011341452B2 (en) * 2010-12-17 2016-06-30 Exxonmobil Upstream Research Company Wellbore apparatus and methods for zonal isolation and flow control

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2013138622A2 *

Also Published As

Publication number Publication date
WO2013138622A3 (en) 2014-07-03
US20150041121A1 (en) 2015-02-12
WO2013138622A2 (en) 2013-09-19

Similar Documents

Publication Publication Date Title
US20150041121A1 (en) Outward venting of inflow tracer in production wells
CN103003524B (zh) 使用具有外部示踪剂涂层的生产管对发生故障的裸眼封隔器进行地表检测的方法和装置
US8061219B2 (en) Flow restriction insert for differential pressure measurement
US7346456B2 (en) Wellbore diagnostic system and method
NO20121120A1 (no) System og metode for a bestemme inntrengning av vann i en bronn
RU2482272C2 (ru) Способ контроля за разработкой месторождения углеводородов
Stober et al. The upper continental crust, an aquifer and its fluid: hydaulic and chemical data from 4 km depth in fractured crystalline basement rocks at the KTB test site
Huerta et al. Utilizing sustained casing pressure analog to provide parameters to study CO2 leakage rates along a wellbore
AU2007310868B2 (en) System for determining sealing in a wellbore
Semikin et al. Autonomous ICD well performance completed with intelligent inflow tracer technology in the Yuri Korchagin field in Russia
US11028687B2 (en) Tracers and trackers in a perf ball
Gashimov et al. Well Completion Technology Evaluation for Oil Rim Field Development Using Permanent Tracers: A Case Study from North-Komsomolskoye Field
US10718167B2 (en) Well liner
Aslanyan et al. Spectral noise logging integrated with high-precision temperature logging for a multi-well leak detection survey in South Alberta
Al-Ghanim et al. Middle East field water production mechanisms
Castro et al. Lessons Learned from the First Application of Fiber-Optic Monitoring and Cemented Coiled Tubing-Enabled Multistage Fracturing Sleeves for Real-Time Monitoring of Stimulation Treatments and Post-Frac Production
Al-Morakhi et al. Real time advanced flow analysis for early kick/loss detection & identification of open fractures
CA2842978C (en) Noise isolation tool
El Maimouni et al. First Permanent Inflow Monitoring Experience in a Smart-Liner, Intelligent-Completion, Multi-Lateral Adnoc Offshore Well
Aviles et al. Redefinition of Well Interventions in Naturally-Fractured Carbonate Reservoirs through Real-Time Coiled Tubing-Deployed, Fiber Optic Monitoring
Abdul Aziz et al. World First Commercial Application of Permanent Interventionless Monitoring Using Intelligent Inflow Gas Tracer Technology
Williams et al. Intelligent Inflow Tracers Obtain Information With Less Risk, Cost
Kolupaev et al. Selection of Optimum Monitoring Technique for Wells with Multistage Hydraulic Fracturing on Priobskoe Oilfiel
Croon et al. Enhanced Well Remedial Decisions from Exact Location of Fluid Movement Behind Casing Identification
Gibrata et al. New Techniques of Through-Barrier Diagnostics to Improve Integrity Management Decisions in Reservoir Development of Complex Reservoirs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140916

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150527

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522