Sand Detection and Monitoring Services. Building a Premier indigenous Oil Service Company

Transcription

1 Sand Detection and Monitoring Services

2 Who We Are An wholly indigenous Oil and Gas Service Company Our Vision is to become a leading Oil and Gas Service company in West Africa, by delivering unrivaled technology, deploying well trained Engineers and holding on to our core values of safety and integrity. Over 20 years of opera<onal experience in the West African Oil and Gas Industry Opera<ons base in Trans Amadi, Port Harcourt.

3 Our Services and Solutions Sand Detec<on and Monitoring Surface Well Tes<ng Early Produc<on Facili<es Effluent Water Treatment Training and Development

4 Our Core Values H - Honesty E - Excellence A - Quality Assurance R - Reliability T - Tenacity S - Safety

5 Our People Management: Patricia Simon-Hart (CEO): Over 30 years management experience, 20 years in the Oil and Gas Sector General Staffing Administration - Human Resources and Development - Finance and Accounting - Facilities Maintenance and Logistics - Procurement Professional Staff - Field Service Engineers - Sand Specialists - Well Test Engineers - QHSE Certified

6 Our Facilities

7 Our Clients

8 Our Partners CLAMPON is the leading worldwide supplier of topside and subsea non invasive ultrasonic intelligent sensors for par<cle, pig, leak, vibra<on and corrosion-erosion monitoring and spectrum analysis Biosystems, Inc. is a biotechnology company that develops and manufactures solu<ons for filtering and cleaning mari<me and industrial waste. Their products include PetroLiminator, which separates oil from water and GF 2010, a liquid detergent that dissolves and biologically consumes grease and oils.

9 Why Look for Sand? Keep sand production under control! (planned or unplanned) Optimize production To maximum sand free or acceptable sand rate level Minimize sand removal/disposal cost Avoid erosion issues Maintenance cost Safety Environmental issues Avoid formation damage or even well collapse Avoid sand deposits in subsea flowlines Reduce risk and cost while increasing production

10 Sand Management by Monitoring Methods to Manage Sand: By Removing or controlling the sand produc<on down-hole or topside Sand screen, gravel pack Controlling sand produc<on Op<mizing the oil/gas produc<on rate to achieve the highest possible produc<on maintaining an acceptable sand rate. With down-hole sand control do we s<ll need sand monitoring? A sand detector can detect the fines coming through the screen. Warning of screen failure Why not control the sand produc<on? By ac<vely using an accurate real-<me sand monitoring system, the produc<on can be op<mized to the best rate without sand or with an acceptable sand rate.

11 Sand Management - Control the sand produc<on! By acevely using an accurate real-eme sand monitoring system, the produceon can be opemized to the best rate without sand or with an acceptable sand rate.

12 Sand Monitoring ClampOn DSP Monitors ClampOn AS is the World leader in ultrasonic intelligent Sand, Pig & Corrosion / Erosion Monitoring.

13 Working Principle An acous<c sand detector measures the ultrasound generated by par<cles hi\ng the wall of a pipe, normally in a bend. By accurate calibra<on of the detector it is possible to convert the measured ultrasound to a quan<ta<ve measurement of sand. By filtering the acous<c signal it is possible to remove most of the signal not being par<cles, and s<ll keep an extremely high sensi<vity to par<cles

14 ClampOn Ultrasonic Intelligent Sensors DSP Par<cle Monitor DSP Pig Detector DSP Leak Monitor DSP Corrosion -Erosion Monitor Online Sand & Erosion Monitoring (with DNV) Versions: ² Topside ² Compact Subsea (2500m) ² Deepwater (4500m)

15 Easy to Install No cu\ng No welding Clamped on downstream of a 90 bend ROV installable & retrievable subsea sensors

16 How it works The measured raw signal, represen<ng the energy released by par<cles hi\ng the pipe wall can easily be converted to a mass, if the velocity is known. e=m*v 2

17 Conver>ng Raw signal to mass m=e/v 2 Zero, the raw signal not being sand. Step, The calibra<on factor. Both these factors are dependant on flow velocity

18 ClampOn DSP Spectrum Analysis Spectrum - Response from different media Sand / Particle 70 Percentage % Gas / Liquid 20 Mechanical Water / Liquid 10 0 Frequency

19 The perfect detector The perfect sand detector: ü Extremely high sensi<vity to the par<cle frequency s ü Perfect filtra<on of unwanted signals ü Unaffected by electrical interference

20 Controlled sand produc<on Perforation seen from the tubing showing the channels created by sand being produced from the well. The channels can often be quite stable, some occasional sand production will usually be seen.

21 Opera<ng Range concept Flow Rate Upper limit of safe operation Massive sanding Sand bursts Sand-free limit line Production enhancement No sanding Sand Strength

22 ClampOn DSP Par<cle Monitor Sand deposit can occur even at low sand rate, challenging the sensi<vity of the sand monitoring system The sensi<vity of any sand monitoring system is depending on flow velocity

23 Small sand produc<on

24 Zero sand produc<on

25 Small sand produc<on A fully automated system is not likely to detect the small sand produc<on at low rate, causing a possible sand deposit in the flow line. By careful manual analysis of the sand monitor data it is possible to detect very small amounts of sand. Sand produc<on is never at a stable rate. There will always be a peak. This will increase the possibility to detect small amounts of sand.

26 Sand trending Good panern

27 Sand trending Bad panern

28 Boos<ng, Field example Choke % Raw value

29 Boos<ng, Field Example Choke % Raw value

30 Data from Norne FPSO Where did that sand come from? Topside on Riser Subsea on well D1 Subsea on well D3 Sand detected first subsea on well D1 and then topside on riser PD2 after one hour (bottoms up time) The other well, D3, on the same riser did obviously not contribute any sand :00 17:33 19:06 20:39 22:12 23:45 01:18 02:51 04:24 05:57 07:30 09:03 10:36 12:09 13:42 15:15 16:48 18:21 19:54 21:27 23:00 00:33 02:06 03:39 05:12

31 Data from Norne FPSO Sand event on E4-H Subsea signal Topside signal A comparison of the signals from the subsea- and the topside sensors shows a significant difference in both signal value and <me! Time

32 Boos<ng Earnings Increased earnings per day ; Statoil - Stapjord USD/Day Conoco - Murdoch USD/Day BHP - Ravenspurn USD/Day BP - Cleeton USD/Day Shell - Brunei(onshore) USD/Day Exxon - GOM USD/Day Mobil - GOM USD/Day Shell East (Soku) 5000 Bbl/ day BP Andrew 5000 Bbl/day ExxonMobil Indonesia From 11 to 16 MMScfd on one well

33 Applica<ons Produc<on Op<miza<on - Oil Boos<ng First Flow well tes<ng/ cleanup opera<ons Produc<on Monitoring Opera<ons

34 Case Studies: Amenam-Kpono On March 2011 TOTAL E&P carried out a sand check operation on selected MP wells on AMD1 on the Amenam-Kpono Platform OML 99.

35 AMENAM: AMKP1-27 Choke60/64 Sand Monitoring Calibration for this choke was done with available flow rate parameters; max, min and average Background Raw values of 17580, 2658, 12670E/s, Zero values of 10500, 13500E/s, Step value of 6387E/g Flow Velocity value of 9.77m/s. Sand averaged 0.001g/s and total sand value was 0.061Kg during the period monitored

36 AMENAM:AMKP1-06 Choke 46/64 Sand Monitoring Calibration for this choke was done with available flow rate parameters; maxi, min and average Background Raw values of 13470, 2669, 4030E/s, Zero values of 3500, 4850E/s, Step value of 6917E/g Flow Velocity value of 10.52m/s. Sand averaged 0.001g/s and total sand value was 0.077Kg during the period monitored

37 Conclusion: Ultrasonic Sand Monitoring Is u<lized Offshore: Shallow or Deepwater with a Topside or Subsea installa<on. Specifically u<lized for produc<on monitoring well tes<ng and boos<ng applica<ons.

38 Axrac Limited Recommends ü Ac<ve and bener sand monitoring strategy for all wells / fields development ü Dedicated focal point / equipment ownership for all sand management related issues ü Operator to explore the benefits of using proac<ve sand monitoring system approach

39 Next step? Outright purchase of portable units Outright purchase for Permanent installa<on at Field loca<ons Rental and deployment of Axrac sand specialists for monitoring of wells Inclusion of sand monitoring in Well Test opera<ons