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
¼ 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
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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
Learning’s
MENAPS 16-17
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• 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