Applying welllife slurry for cementing HPHT wells at y field, nam con son basin

VIETNAM NATIONAL UNIVERSITY, HO CHIMINH CITY HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY -oOo - STUDENT’S NAME: LƯƠNG THỊ HỒNG SƠN APPLYING WELLLIFE SLURRY FOR CEMENTING HPHT WELLS AT Y FIELD, NAM CON SON BASIN SPECIALITY: PETROLEUM ENGINEERING (60520604) STUDENT ID: 7140880 MASTER THESIS HO CHI MINH CITY, 08/2018 Auxiliary pages We, the undersigned, recommend that the thesis is completed by student listed above, in partial fulfilment of the degree requirements, be accepted by the Ho Chi Minh City University of Technology for deposit Professor/Advisor: Dr ĐỖ QUANG KHÁNH Reviewer 1: Dr NGUYỄN HỮU CHINH Reviewer 2: Dr HOÀNG QUỐC KHÁNH The Master Thesis is defended at the Committee of Master Thesis Examiners at Ho Chi Minh City University of Technology on 04th August 2018 The Committee members include: (Name of Advisor and Thesis committee members) MAI CAO LÂN – Chairman of Committee NGUYỄN HỮU NHÂN - Secretary NGUYỄN HỮU CHINH – Member/Examiner HOÀNG QUỐC KHÁNH – Member/Examiner TRƯƠNG HOÀI NAM - Member The Master thesis is evaluated and approved by Committee Chair COMMITTEE CHAIR HEAD OF DEPARTMENT DEAN OF FACULTY VIETNAM NATIONAL UNIVERSITY, HO CHIMINH CITY HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY MASTER THESIS TASK Student’s name: LƯƠNG THỊ HỒNG SƠN STUDENT ID: 7140880 Date of birth: 24/12/1978 Place of birth: Rach Gia, KG SPECIALITY: PETROLEUM ENGINEERING I THESIS’S NAME APPLYING WELLLIFE SLURRY FOR CEMENTING HPHT WELLS AT Y FIELD, NAM CON SON BASIN II - TASK AND CONTENT Overview about petroleum geology, temperature and pressure of Nam Con Son Basin Information about cementing for HPHT wells in Nam Con Son Basin Explore challenges and solution applied in HPHT wells - Study Cement components in Conventional and HPHT environment - Study how WellLife Cement System works from collecting data to cement slurry design; Applying WellLife Slurry for cementing HPHT wells at Y field, Nam Con Son Basin - Evaluate cement quality of WellLife cement in HPHT wells of Y field III THESIS DATE RECEIVED: 11/01/2018 IV THESIS DATE COMPLETED: 25/06/2018 V ADVISOR: Dr Do Quang Khanh ADVISOR HEAD OF DEPARTMENT (Name and Signature) (Name and Signature) DEAN OF FACUTY (Name and Signature) [i] ABSTRACT This is a comprehensive study of applying WellLife slurry for cementing high temperature high pressure wells at Y field, Nam Con Son Basin In this research, I explore basic information about petroleum geology, temperature and pressure at Nam Con Son Basin, information about cementing technology application history with failure or success, the effects of temperature and pressure to cement’s property Then to study cement components for HPHT not only cement itself but scan through types of additives used in HPHT cementing slurries Also research challenges and solutions of cementing HPHT wells, research WellLife components and WellLife cementing design for ½ casing of a HPHT well in Y field which includes WellLife design for special cement G applied WellLife Slurry for cementing HPHT wells at Y field, study the process from well information, well schematic with all strings to Pore Pressure and Fracture Gradient windows to see the challenges and come up with solution applied for cement design for the last section, also the highest temperature and pressure section of the well Come up with components for blending Get assistance from WellLife software and lab test to evaluate how WellLife slurry modify YM & PR & trend of modifying YM & PR with elastomer and recommended %bwoc Finally, find out cement evaluation methodology and evaluate WellLife cement quality in a well via cement bond log result The last conclusion and suggestion part, this thesis highlight what not yet been done and suggest development topic [ii] DEDICATION This is my own dedication The data in the thesis is honest and experimental [iii] ACKNOWLEDGMENTS This project would not have been possible without the support of many people Many thanks to my advisers, Dr Khanh & Dr Nam for the invaluable assistance and insights leading to the writing of this paper as well as their patience and enduring this long process with me for the production of this paper Thanks to my colleagues at Halliburton company for their assistance and dedication to support me to witness all the tests in lab on the requirement of the paper as well as real experience over learning curve of the project to come up with the best solution as well as to review and provide many examples used in this sample research paper have been quoted And finally, thanks to my customer who supports me with the actual data to complete this project accurately [iv] LIST OF FIGURES Figure 1.1: Y field at Nam Con Son Basin Figure 1.2 Play types of Nam Con Son Basin [20] Figure 1.3 Matrix of High Pressure High Temperature Operation [1] Figure 1.4 Matrix of High Pressure High Temperature Operation [1] Figure 1.5 HPHT Tiers, Courtesy of Baker Hughes 2005 [1] Figure 1.6 HPHT Tiers, Courtesy of Schlumberger, 2008 [1] Figure 1.7 HPHT Tiers, Courtesy of Halliburton, 2012 [1] Figure 1.8 Pressure profile at block 04, 05 Nam Con Son Basin [19] Figure 1.9 Pressure profile at block 04, 05 Nam Con Son Basin [19] Figure 1.10 Temperature profile at block 04, 05 Nam Con Son Basin [19] Figure 3.1 Maintaining Overbalance pressure Figure 3.2 Gas channel forms under the following conditions Figure 3.3 Example of long-term gas migration problems Figure 3.4a General trend for modification of Young’s modulus with elastomers Figure 3.4b General trend for modification of Poisson’s ratio with elastomers Figure 3.5a General trend for modification of Young’s modulus with elastomers Figure 3.5b General trend for modification of Poisson’s ratio with elastomers Figure 3.6: Model 6265 Mechanical Properties Analyzer Figure 3.7: Report of 6265 Mechanical Properties Analyzer Figure 3.8: Highly permeable sections require good fluid-loss Figure 3.9 Uncontrolled fluid loss can result in a rapid cement Figure 3.10 Cement node buildup [v] Figure 3.11 Thermal thinning effect Figure 3.12: Well schematic contains strings to reach to multiple reservoirs Figure 3.13: Pore Pressure – Fracture Gradient contains very narrow window 0.8ppg Figure 3.14 Temperature profile in Y field [18] Figure 3.15 Conventional cement sheath with catastrophic failure Figure 3.16 WellLife cement resiliently withstands load Figure 3.17 Remaining capacity between conventional and WellLife cement Figure 3.18 UCA chart at BHST 160Deg C Figure 3.19 TT chart at Baseline 135Deg C – cement sample from Silo3 Figure 3.20 SGS chart at BHST 160Deg C Figure 3.21 UCA chart at BHST 160Deg C Figure 3.22 TT chart at Baseline 160Deg C-Silo1 Figure 3.23 SGS chart-Silo#1 Figure 3.24 UCA chart at BHST 185deg C-Silo1 Figure 3.25 UCA chart at TOL 155deg C - Silo1 Figure 3.26 TT chart at Baseline 160deg C-Silo Figure 3.27 UCA at BHST-Silo3 Figure 3.28 SGSA chart –silo#3 Figure 4.1 Relationship between Received Amplitude (E1) and Casing Size Figure 4.2 Correction Factor (Amplitude Ratio) for different wellbore fluids Figure 4.3 Cement Bond Log Interpretation Chart Figure 4.4: Acoustic Impedance of typical materials present behind pipe Figure 4.5 SBT Pad arrangement and Attenuation rate computation methodology [vi] Figure 4.6 Baker Atlas SBT Interpretation Chart Figure 4.7 Examples of TT and Amplitude data Figure 4.8 Casing Collar Locator Radial CBL of 5-1/2 tubing of well Y after cementing with WellLife Slurry [vii] LIST OF TABLES Table 1.1 Wells at Nam Con Son Basin with water depth of HPHT Table 1.2 Technical design and technology of cementing wells in block 04 & 05 Nam Con Son Basin Table 1.3 Cementing design from service providers for wells at Nam Con Son Basin Table 1.4 Slurry Design applied for HPHT wells in Nam Con Son Basin Table 2.1 Water Requirements for Different Classes of Cement Table 2.2 Maximum allowable limits for Ions in mixing water Table 3.1 Comparison of Compressive Strength, Young’s Modulus and Poisson’s Ratio between WellLife 665 Additive and FDP-987-10 Material Table 3.2 Special WellLife Cement component Page 89 of 115 the top and might be interpreted as free pipe, and calibrated accordingly, as this is 7” liner with free pipe amplitude of 62mV However, in this case that would be wrong as this is not free pipe There was a tail of 15ppg and lead of 8.5ppg, with the transition apparent in the amplitude about 1200 In the 8.5ppg lead the amplitude of 30-40mV is well bonded Above 400 there is 9-5/8” casing behind the liner giving lower amplitude still If the amplitude was truly reading free pipe then the VDL would show strong casing arrivals, “tram lines”, with no formation arrivals If formation arrivals are obvious and the amplitude reads free pipe then the tool has been „overcalibrated‟ and is pessimistic, i.e it has been calibrated to read free pipe in pipe that is not free The maximum amplitude should also be checked throughout the entire log as it should never read greater than free pipe If the amplitude reads greater than free pipe the tool has been over-calibrated Where the amplitude is low the casing arrivals show be very weak or absent and formation arrivals should be much stronger However, depending on the rock the formation arrivals may be very weak or absent as well as this depends on the acoustic properties of the formation Comparison with an open hole full waveform sonic log can identify which zones have weak formation arrivals due to the rock properties so that this is not misinterpreted as poor cement bond Page 90 of 115 Page 91 of 115 Page 92 of 115 Page 93 of 115 Page 94 of 115 Page 95 of 115 Page 96 of 115 Figure 4.8 Casing Collar Locator Radial CBL of 5-1/2 tubing of well Y after cementing with WellLife Slurry Page 97 of 115 CONCLUSION & SUGGESTION The thesis presents an overview of cementing in high pressure high temperature well in Y field Nam Con Son basin From the acknowledge challenges of cementing HPHT wells, research the components of WellLife cement from that proposing of applying WellLife slurry to the HPHT well at Y field and follow up with evaluation by cementing bond log In the Y field heavyweight WellLife cement designs are common for all primary cementing jobs throughout the production casing, liner (special blend with fixed % of each component bwoc) The designs are adjusted by only a few liquid chemicals and water to fit to a specific wellbore condition This experimental work highlights the use of an advanced single WellLife cement blend that can be tuned specifically from 16.5ppg to 18.5ppg in HPHT slurry for both casing sizes and engineered development solutions for long-term zonal isolation which have proven over the past years The single appropriate WellLife cement blend not only simplifies operations and logistics, but it also reduces the risk, the overall cost to the operator by eliminating the need for excess chemicals (backup) and boat trip to refill for next cement job The above Figure 4.7 shows CBL & VDL of 5-1/2 section of one of the well in Y field after cemented with WellLife Slurry Some area without cement can be visual catch from the log In the good bond area, the amplitude line is low from VDL line shown that cement filled in the annulus has hardened The result from this log’s show that the quality of cement connection in production liner section is fairly good (90-100%) However, to evaluate cement of production liner in long production period including evaluation of mechanical connection of cement in long time, we have to redo the CBL and VDL in order to have solution in case finding of any problem Page 98 of 115 REFERENCES [1] Arash Shadravan, Mahmod Aman HPHT 101 (2012), What Petroleum Engineers and Geoscientists Should Know HPHT Wells Environment, Energy Science and Technology, Vol.4, No.2, 2012, pp.36-54 [2] Trần Hồng Nam, Lê Trần Minh Trí, Nguyễn Kiên Cường, Trịnh Ngọc Bảo, Mike Nguyễn (2010) Thiết kế giếng phát triển mỏ áp suất cao nhiệt độ cao - Những điều cần lưu ý, Tuyển tập báo cáo Hội nghị 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Schlumberber IPM; and Suresh Kumar Nair, SPE, Gujarat State Petroleum Co “HP/HT Cement System Design – East Coast Case History” Page 99 of 115 presented in SPE/IADC Indian Drilling Technology Conference and Exhibition held in Mumbai, India, 16-18 October 2006 [9] Michael Pine, Shell U.K Exploration and Production (Shell Expro); Liz Hunter, John Mutch, John Adam, and James E Griffith, Halliburton “Selection of Foamed Cement for HPHT Gas Well Proves Effective for Zonal Isolation – Case History”, SPE/ IADC 79909, Presented at IADC/SPE Drilling Conference in Amsterdam, The Netherlands, 19-21 Feb 2003 [10] Kris Ravi and Richard Vargo, Halliburton; Barbara Lasley, BP America Production Company “Successful Cementing Case Study in Tuscaloosa HPHT Well”, presented in SPE Russian Oil and Gas Technical Conference and Exhibition held in Moscow, Russia, 28-10 Oct 2008 [11] Shado Yetunde and Joel Ogbonna; Institute of Petroleum Studies, University of Port Harcourt, Nigeria “Challenges and Remedy for 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Study of Laboratory Methods and Procedures” prensed at [17] 2007 SPE Rocky Mountain Oil & Gas Technology Symposium held in Denver, Colorado, USA, 16-18 Apr 2007 [18] Manilal Vasavan “Elastic Modulus of Concrete” published on January 22, 2017 [19] Truong Hoai Nam “Các tính chất học đá xi măng trám giếng khoan điều kiện áp suất cao, nhiệt độ cao bể Nam Cơn Sơn” Dầu Khí – No 12/2014 pp 24-31 [20] Nguyễn Minh Quý, et all., “Tổng kết đánh giá công tác bơm trám xi măng cho giếng khoan có nhiệt độ áp suất cao bể Nam Côn Sơn” Báo [21] [22] cáo tổng kết – Nhiệm vụ nghiên cứu khoa học cấp ngành Michael J Economides, et all., “Petroleum Well Construction” Halliburton, John Wiley and Sons, 1997, pp 274- 407 G Mohamad, et all., “Poison Behavior of Bedding Mortar Under Multiaxial Stress State” Benjamin Iverson, et all., “Strength Retrogression in Cements under High [23] Temperature Geothermal [24] Conditions” Reservoir Proceedings, Engineering Thirty-Fifth Stanford Workshop University, on Stanford, California, February, 1-3, 2010 Warren E Emley “Measurement of Plasticity of Mortars and Plasters” Technologic Papers of the Bureau of Standards, No 169, June 28, 1920 [25] Steve Streich “Successful Applications of Conventional Elastomers in HPHT Environments” presented for the Deep Gulf 2010 held in Galveston, Texas, 8-10 December 2010 Page 101 of 115 Barry Wray “The Application of High-Density Elastic Cements to solve [26] HPHT Challenges in South Texas: The success Story” presented at 2009 SPE Annual Technical Conference and Exhibition held in New Orleans, Louisiana, USA, 4-7 October 2009 [27] Zheng Youzhi “Mechanical behaviors of cement systems in different conditions” http://www.sciencedirect.com Xueyu Pang “The effect of water-to-cement ratio on the hydration kinetics of Portland cement at different temperatures” Cementing Applied Science and Processes, Halliburton, 3000 N Sam Houston Pkwy E, Houston, 77070, USA Page 102 of 115 CURRICULUM VITAE PERSONAL INFORMATION Name: Luong Thi Hong Son (Sharon Son) Sex: Female Date of birth: December 24, 1978 Residence: Ho Chi Minh City, Vietnam Nationality: Vietnamese Languages: Vietnamese, English, Chinese Marital status: Married Specialist: Bachelor of Science OIL & GAS EMPLOYMENT HISTORY  Commenced: Mar, 2000 – now Company: Halliburton International Inc (17 years) Company: Chevron Vietnam (1.5 years) Job title From year to year Vietnam Business Development Manager Jan13 – Mar18 Account Manager – Business Development Apr12 – Jan13 Contracts Administrator/Chevron VN Jan11 to Apr12 Account Manager-Landmark Jan09 - Dec10 Customer Operation Specialist, Sr Jul06 – Dec08 Page 103 of 115 Customer Operation Specialist Oct03 - Jun06 Office Administrator Mar00 - Sep03 WORKING FIELD Upstream Oil & Gas Well services & sale: DD/MWD/LWD; Completion; Pumping services; Cementing Services& Special Tools & Casing Accessories; Drill Bits; Special Tools; Emergency Well Control; Perforation Equipment and Services… FEED, FOE and EPCI Contract Analysis, Manage Manpower Service Contract, monitoring Project contracts from start to close out ... Study how WellLife Cement System works from collecting data to cement slurry design; Applying WellLife Slurry for cementing HPHT wells at Y field, Nam Con Son Basin - Evaluate cement quality of WellLife. .. consider applying WellLife slurry for HPHT fields and wells specifically applying this method to upcoming HPHT wells at Nam Con Son Basin in Vietnam The proven result of applying WellLife slurry brought... technology of cementing wells in block 04 & 05 Nam Con Son Basin Table 1.3 Cementing design from service providers for wells at Nam Con Son Basin Table 1.4 Slurry Design applied for HPHT wells in Nam