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  • Orienting Perforations for Permanent Fiber Optics Deployment

    MENAPS 16- 17

    AUTHORS: PDO; Hanshi Salem , Haitham Mohammed, Kechichian Jackie & Velazco Quesada Conny .

    NOV 14TH, 2016

    MUSCAT, OMAN

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    MENAPS 16-17

    1

    Asset PDO:Conny ValezcoJackie KechichianSaif JaradiAndika Rafliansyah, Suryan GuntupalliPetrus In 'T PanhuisZainab RawahiNasir OritolaSolenn Bettembourg

    SLB:Giles PowellMahmoud SeiamMohd Shafie JumaatPablo Fernando EstradaSLB Completions SLB Wireline

    Wells P&D PDO:Said NofliArjan VosDotun OgunwaleSaid Harthy

    Wells Ops. PDO:Salim FuraisiQasim RawahiAhmed RashdiSalem HanshiMohamed HathmRig-26 Well site Team

    Shell USKelly McCoySteve Hirshblond

    Cameron:Khaled Nasr EldinCameron Machine Shop

    Wells Contracts PDO:Saif AufiUnni MadhavanNasser Abbadi

    Project Team

  • PDO :Orienting Perforations for Permanent Fiber Optics Deployment

    Contents

    Background information Need for Oriented Perforations Available Options for Oriented Perforation (electromagnetic vs mechanical)

    Well design Job execution

    Deviated well Vertical well

    Leanings Well performance

    MENAPS 16-17

    2

  • Orienting Perforations for Permanent Fiber Optics Deployment

    Background Information

    3

    MENAPS 16-17

    Why Oriented Perforations?

    To Perforate away from Fiber Optic cable installed outside production casing in cased and perforated completions

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Background Fiber Optics Cable Specs

    MENAPS 16-17

    4

    or 1/8 standard control line used to deploy fiber, how do we locate it to orient the perforation guns?

    After cementation, the cable may cause a streak with no cement that can be detected by ultrasonic imaging tools (not warranted)

    Electromagnetic logging tools can detect the cable if magnetic properties enhanced

    If cable position known from surface, orientation can be done without the need for mapping

    Picture Courtesy of Shell Houston

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Background - Available Options for Oriented Perforation

    MENAPS 16-17

    5

    Electric line convey

    Uses motor to locate and position guns based on high electromagnetic signal

    Limited gun size

    Limited in length of perforation

    High risk in vertical wells due to tool sensitivity to centralization

    Tubing convey

    Uses mechanical orientation tool to position guns based on pre-set casing profile

    Carry bigger gun size

    Can perform long perforation interval in one go

    Deviation is not necessary but high accuracy in cable positioning w.r.t. orientation profile is critical (rig operation)

    Principle

    Applications

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Changes in Well Design

    MENAPS 16-17

    6

    Proposed Design for HW Polymer Pilot Water Injectors

    Rus Aquifer (47 - 192m)

    9-5/ 8" 36# LTC externally coated casing

    Mid UeR Aquifer (total losses)

    LPC cable 7" Cement 200m above 9-5/ 8" Csg shoe

    Good Top of Cement ~ 600m 4-1/ 2" GRE lined tubing with DHG

    Shammar Shale (~708 - 716mahbdf)

    4-1/ 2 x 7" Natih - Carbonate Fm (735 - 869m ahbdf)

    ICC profile for mechanical orientation

    Nahr Umr Shale (~ 869 - 871m)

    U1, U2, U3 Oriented Perforations:

    Calcrite (~894m) U3 and U4

    U4, U6

    Intra Mahwis Shale (~ 934m - 952m)

    L1

    7" 23# K55 LTC csg @ 958m Fixed TD

    Changes to standard well design and perforation strategy:

    Surface casing ID increased to allow for larger production hole size (larger cement sheath expected)

    Production casing run with FO cable and cable locator profile (depth based on target perforation interval)

    Underbalance perforation not possible, however, dynamic underbalance considered after initial injectivityassessment

    Shot density reduced by half

    Shot angle limited to 90deg coverage

    Risk: changes to injectivity/productivity and fluid velocity Evaluate well performance

  • Orienting Perforations for Permanent Fiber Optics Deployment

    MENAPS 16-17

    7

    Job Execution (Deviated Well Application)

    Outline program

    Scrapper run

    Jetting and dummy run of mechanical positioning tool

    Electromagnetic tool mapping and perforating (0deg phasing)

    Ultrasonic tool mapping and confirmation of 1st perforation

    Tubing convey perforation (0, +/-45deg)

    Temperature survey to confirm performance of perforation

    Casing profile Mech. Positioning Tool

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    MENAPS 16-17

    8

    Job Execution (Vertical Well Application)

    Outline program

    Scrapper run

    Jetting and dummy run of mechanical positioning tool

    Ultrasonic tool (detect cable position at casing profile location)

    Tubing convey perforation (0, +/-30deg)

    Temperature survey to confirm performance of perforation

    FO cable had not rotated w.r.t. casing profile

    Manufacturing pattern on pipe

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Job Execution (Gun Orientation and Space Out)

    MENAPS 16-17

    9

    Run TCP guns with MPT and perforate.

    Aligning Guns with Mech. Positioning Tool

    Casing profile

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Learnings

    MENAPS 16-17

    10

    Use special rotatable scraper to avoid issues with casing profile

    Run with location tool as dummy run to clean & confirm casing profile clear from any debris or cement.

    Connect the guns together in perforation workshop and make scribe to avoid misalignment while running the guns in hole.

    Ensure drift ID of the X/O below CSLT more than fishing tool for drop bar.

    Displine sub should be within 10 deg orientation range to minimize misalignment between the guns & CSLT.

  • PDO: Orienting Perforations for Permanent Fiber Optics Deployment

    Well performance

    MENAPS 16-17

    11

    DAS and DTS show injection at the same depths as the PLT, injectivity index not affected

  • Orienting Perforations for Permanent Fiber Optics Deployment

    QUESTIONS? THANK YOU!

    MENAPS 16-17

    MUSCAT, OMAN

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