The ChemicalPLT Interventionless Monitoring

Size: px

Start display at page:

Download "The ChemicalPLT Interventionless Monitoring"

Abigail Norman
6 years ago
Views:

1 What flows from where and how much? The ChemicalPLT Interventionless Monitoring November 16 th, 2016 INTSOK Drilling, Downhole and Reservoir Technology Conference Perth, Australia Ed Leung VP Reservoir Surveillance

2 What flows from where and how much? FPSO 2

Monitoring Sensor Chemistry Fundamentals Tracer Molecules Synthesised by RESMAN Organic chemicals, NOT radioactive Polymer Release Systems Tracer embedded in polymer matrix: Rods or filaments Bespoke

Dormancy Water tracers dormant in pure oil phase Oil tracers dormant in pure water phase Constant Release Rate Flow rate independent Operating Envelope Pressure NOT Affected Temperature 10 200 deg C

3 Monitoring Sensor Chemistry Fundamentals Tracer Molecules Synthesised by RESMAN Organic chemicals, NOT radioactive Polymer Release Systems Tracer embedded in polymer matrix: Rods or filaments Bespoke design for well and reservoir conditions With stand any fluids planned in well i.e. acid stimulation, filter cake breaker, etc. Dormancy Water tracers dormant in pure oil phase Oil tracers dormant in pure water phase Constant Release Rate Flow rate independent Operating Envelope Pressure NOT Affected Temperature deg C API Laboratory Analysis Offsite analysis Parts per trillion (ppt) detection levels Onsite analysis (well site detection) Parts per billion (ppb) detection levels limited to clean-up and early production Longevity H2S & CO2 Sour Field Dimensions Up 10 years for oil Up to 7 years for water NOT Affected Fit for purpose in chosen tracer carrier 3

Monitoring Sensor How it Works Unique tracer molecule

Integration Tracer Systems Up to 160 (80 RES Oil + 80 RES

Oil or Water Molecule Release Constant release rate (Flow

Passive ICD Check Valve Passive ICD Autonomous ICD Open hole

4 Monitoring Sensor How it Works Unique tracer molecule Engineered Polymer Matrix Tracer System Completion Integration Tracer Systems Up to 160 (80 RES Oil + 80 RES H20) unique intelligent molecule IDs FLUID CONTACT DETECTION Oil or Water Molecule Release Constant release rate (Flow rate independent) Stand alone screen, SAS Premium & Wire wrap Passive ICD Check Valve Passive ICD Autonomous ICD Open hole gravel pack Frac Pack ICV completions Slotted liner Multi-stage frac Cased and Perforated

5 Monitoring Service RESMAN Surveillance Workflow 5: Inflow Interpretation 4: Lab Analysis (ppt) 3: Sampling 2: Fluid flow to surface 1: Tracer deployment

6 RESMAN ChemicalPLT vs. conventional PLT SPE paper MS Presented by Statoil Cost savings of multiple PLTs in $USD

Track Record: 384 wells, 3352 systems*, 46 operators in 28 countries USA: Alaska & Lower 48 Eni Nikaitchuq ConocoPhillips Alpine Caelus Energy (Pioneer) Oooguruk, Turuk, Nuiqsut BP Schrader Bluff,

7 Track Record: 384 wells, 3352 systems*, 46 operators in 28 countries USA: Alaska & Lower 48 Eni Nikaitchuq ConocoPhillips Alpine Caelus Energy (Pioneer) Oooguruk, Turuk, Nuiqsut BP Schrader Bluff, Sag River Repsol Qugruk OXY State Jaeger (Bakken) Petrodome Heines (Victoria) Shell Showalter (Marcellus) Marathon (Bakken) Devon Schwipers HESS - Stampede UK Shell Bittern, Fram, Corrib, Gannet Talisman North Auk, Godwin Xcite Bentley BP Clair Chevron Captain Maersk Lochranza, Tullich, Gryphon, Culzean ConocoPhilips Katy, Joanne Nexen GEAD TAQA Cladhan Premier Oil Solan, Catcher EnQuest Ythan, Kraken Russia / CIS Lukoil Korchagin BP Azeri, Gunashli Statoil - North Komsomolskoye Gazprom Neft - Prirazolomnoe Europe Dong Siri, Nini, Ty RWE Mittelplatte Eni Val d Agri Hess South Ame TAQA Rijn OMV Petrom Indenpendenta Maersk Dan, Tyra Norway Statoil Urd, Skinfaks, Oseberg, Tyrihans, Morvin, Heidrun, Åsgard, Hyme, Svale, Norne, Skuld, Njord, Vigdis, Troll, Gullfaks, Johan Sverdrup Det norske Jette, Ivar Aasen, Alvheim, Bøyla, East Kameleon, Boa Kameleon, Volund, Kneler, Viper, Kobra BP Valhall, Skarv, Tilje BG Knarr Total Martin Linge, Uptonia Shell Ormen Lange, Draugen Eni Goliat Lundin Edvard Grieg ConocoPhilips Eldisk, Ekofisk Wintershall - Brage USA: Gulf of Mexico Chevron Jack St.Malo, Tahiti, Blind Faith Petrobras Cascade, Chinook Shell Glider, Stones, Ursa Anadarko Lucius ExxonMobil Julia W&T Offshore Matterhorn BHP Shenzi Deep Gulf Energy Kodiak Freeport-McMoran - Holstein Middle East Saudi Aramco Abqaiq Maersk Al Shaheen KOC North Kuwait Canada: East Coast Husky North Amethyst, West White Rose, South West White Rose, South Avalon Latin America Chevron Frade Ecopetrol - Casabe Africa Eni Foukanda, Mwafi, OCTP CNRI Baobab Cobalt Cameia ExxonMobil Jade* Cairn - Sangomar Deep block Shell - Bonga Far East Australasia BHP Pyrenees, Stickle, Upper Pyrenees, Moondyne, Ravensworth Quadrant Coniston OMV Maari Murphy Siakap North-Petai Chevron GOT Shell - Malikai Track Record as of Oct 2016, *includes awarded wells yet to be RIH

8 Qualitative Interpretation Case Examples 8

Water break through 1 2 3-Wells (ICDs), each with 4-RESH2O systems Long horizontal subsea wells High commingled flow rates Dormant for some years before observing WBT Fully activated by water contact

9 Water break through Wells (ICDs), each with 4-RESH2O systems Long horizontal subsea wells High commingled flow rates Dormant for some years before observing WBT Fully activated by water contact Sub Sea Multi Phase meters (MPM) Installed on each Xmas Tree Avoids segregation to well test stream minimise deferred production High resolution 3 phase rate data Enhanced interpretation of tracer response and verify calibration Provides essential rate and water cut data for interpretation Well B: Little or no water production. No water tracer alarm response observed MPFM assessment 2 1 Well A: Initial WBT at heel. Next water ingress mid/toe. Well C: Initial WBT at toe. Progresses towards mid/toe

Tracer concentration Tracer concentration Long Horizontal ICD Multi-Rate Testing Oil monitoring: Entire well contributing at medium and max rate Toe zones (1 and 2) not contributing to oil production

10 Tracer concentration Tracer concentration Long Horizontal ICD Multi-Rate Testing Oil monitoring: Entire well contributing at medium and max rate Toe zones (1 and 2) not contributing to oil production at minimum rate Water monitoring: Heel (5) produces water at all rates Toe (1) with substantial coning at high rate and some water at medium rate Oil tracers Max rate Minimum rate Medium rate Production rate and water cut Massive water response from the toe Water tracers Max rate Minimum rate Medium rate Production rate and water cut Time Time Oil contribution Main water producer Oil contribution No water Oil contribution No water No oil at min. rate No water No oil at min rate Some water Coning at max rate 5 (heel) 4 3 (mid) 2 1 (toe)

Multi-Lateral Monitoring Downhole Choke Integrity Downhole ICVs

to be open Tracer responses confirm contribution from Lateral A

response from both laterals High amplitude tracer response from

11 Multi-Lateral Monitoring Downhole Choke Integrity Downhole ICVs controlling flow from Lateral A and B Both valves were though to be open Tracer responses confirm contribution from Lateral A only Valves cycled as the rate was below expectation Tracer response from both laterals High amplitude tracer response from Lateral B supporting the observed shut-in Total rate increase observed

12 Gas Well Clean Up & Water Breakthrough 12

13 RES H2O in Gas Well Clean-up & WBT Alarm Monitoring objectives Monitor brine clean-up Detect WBT during gas production 10+ years dormant life RES H2O rods installed in drainage layer of screen Well & Completion Deviated well SAS completion Blanked off shale section WS-3 Shale WS-2 WS-1

14 RES H2O in Gas Wells Clean-up & WBT Alarm Monitoring Results 1. Successful clean-up; high response from all RES H2O systems, going to low water response 2. No sign of significant water during normal production 3. Water breakthrough (>100 times water rate increase) in Zone 2 WS-3 Shale WS-2 WS Massive response increase at WBT Expected response for 2% water contact

15 Quantification RESMAN Interpretation Models 15

16 Quantification Creating a Transient RESMAN matrix installed into completion components Completion installed in well During static period intelligent molecules concentration builds up (release is rate independent ) Upon start up, the fluid with high concentration is flushed out RESMAN proprietary Flush Out model

17 Quantification Flush Out Model Shut-in generates locally high concentration tracer shot Displacing tracer shot during re-start; flush out Steep decay curve = high production rate Model matching by tuning flow dependent parameter k Patent granted in 2013

18 Quantitative Interpretation Check Valve ICD Monitoring 18

Monitor clean up efficiency Check Valve functions to prevent flow into annulus while RIH & unseats when production starts

19 Overview Check Valve ICD Monitoring Well Overview Horizontal with ICD check valve with wire wrap screens No need to run wash pipe when completing well 15 production zones, separated by swell packers 15 oil and 15 water tracer systems Monitoring Objectives Monitor clean up efficiency Check Valve functions to prevent flow into annulus while RIH & unseats when production starts Quantification Relative Flow Contribution (ChemicalPLT)

20 Quantification Flush Out Model 13% OS-15 14% 15% 12% 8% 8% 9% 4% 2% 6% 3% 2% 1% 2% 1% OS-1 Note: K-values are normalized to zone-13 value. OS-15 K: 0.82 OS-14 K: 0.86 OS-13 K: 1.0 OS-12 K: 0.75 OS-11 K: 0.50 OS-10 K: 0.54 OS-9 K: 0.64 OS-8 K: 0.27 OS-7 K: 0.13 OS-6 K: 0.36 OS-5 K: 0.18 OS-4 K: 0.14 OS-3 K: 0.05 OS-2 K: 0.11 OS-1 K: 0.07

21 Check Valve ICD Clean Up Monitoring Summary Relative flow contributions % OS-15 13% 14% 15% 12% 8% 8% 9% 4% 2% 6% 3% 2% 1% 2% 1% OS-1 Check valve ICD with tracer systems installed with no operationally issues Detected ALL oil tracers indicating oil flow in ALL compartments ICD check valves unseated and/or dissolved Mid to toe cleaned less efficiently Heel to mid cleaned more efficiently Quantitative analysis of inflow distribution summarized above

22 RESMAN ChemicalPLT Surveillance Summary Adding Low risk surveillance risk capabilities to most completions Permanently Cableless Reliably Cost Effectively If Well Flows, inflow tracer will always provide surveillance information What flows where & How much Years of monitoring longevity Oil (Up to 10 years) Water (Up to 7 years upon water breakthrough) 22

Company interests in fields and production licences

17 Company interests in fields and production licences A company s share in a field in production or a discovery is followed in brackets by the production licence(s) which embrace that field/discovery.