Abu Dhabi

ADNOC, TAQA Plan 2.4 Billion Megaproject To Pipe Seawater to Onshore Fields

Journal of Petroleum TechnologyMay, 2023

The Abu Dhabi National Oil Company (ADNOC) and the Abu Dhabi National Energy Company (TAQA) have announced a major project requiring an investment of up to 2.4 billion to build a sustainable water supply for ADNOC's onshore operations. The infrastructure initiative includes the construction of a centralized seawater treatment facility and transportation network for the Bab and Bu Hasa fields in Abu Dhabi which combine to produce more than 1 million B/D. In 2021, ADNOC said it would spend more than 300 million on a multiyear project to install remotely controlled production systems in up to 260 conventional and unconventional wells in the Bu Hasa field. The Bab field has a capacity of over 450,000 B/D and is in the midst of a major enhanced oil recovery project that aims to increase production capacity to 485,000 B/D. The major capital program planned for both fields is seen as part of ADNOC's wider strategy to boost the UAE's production from 4 million to 5 million B/D by 2030.

Journal of Petroleum Technology

Adnoc, asia government, company, enhanced recovery, megaproject, Onshore Field, operation, pipe seawater, project management, strategic planning and management, taqa plan 2, uae government, Upstream Oil & Gas

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.74)

Industry:

Government > Regional Government > Asia Government > Middle East Government > UAE Government (1.00)
Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Abu Dhabi Field (0.97)
Asia > Middle East > UAE > Abu Dhabi > Rub' al Khali Basin > Bu Hasa Field > Thamama Group > Shuaiba Formation (0.94)
Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Bab Field > Thamama Group Formation (0.94)

SPE Disciplines:

Reservoir Description and Dynamics > Improved and Enhanced Recovery (1.00)
Production and Well Operations (1.00)
Management > Strategic Planning and Management > Project management (0.88)

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Digital Implementation and Data Analytic for OCTG Running as Tool to Control Non-Expected Operational Cost and Enhance Efficiency in Drilling Operations for Operator Company in Abu Dhabi

Amorocho, A. (Drilling Technology ADNOC, Abu Dhabi, UAE) | Elkasrawi, A. (Drilling Drilling Materials ADNOC, Abu Dhabi, UAE) | Abdelazim, A. (Drilling Drilling Materials ADNOC, Abu Dhabi, UAE) | AlRashdi, A. (Drilling Drilling Materials ADNOC, Abu Dhabi, UAE) | Shamlam, A. Bin (Drilling Operations ASR/UC/ASAB ADNOC, Abu Dhabi, UAE) | Nuaimi, M. Al (Drilling Technology ADNOC, Abu Dhabi, UAE) | Nunez, Y. (Drilling Technology ADNOC, Abu Dhabi, UAE) | Blanpied, C. (Middle East Services Director – Vallourec, Abu Dhabi, UAE) | Cavanha, T. (Business Owner OCTG Digital Solutions – Vallourec, Paris, France) | Blues, S. (Vallurec ME, Vallourec, Abu Dhabi, UAE)

OnePetroMay, 2023

Abstract Responding to requirements of Operator Company in Abu Dhabi to automate and strengthen processes of running casing and tubing, a patented digital solution has been implemented, which timestamps all key phases of the tubulars’ lifecycle from rig receipt to running then to rig return, while enabling continuous improvement through post-running data analytics. The solution relies on unique individual pipe traceability, through a combination of different methods of marking such as – data matrix, RFID & barcodes. These markings are read using a variety of digital tools including – smartphones, tablets & cameras. The solution has already been deployed in North & South America, Europe, and Asia, totaling over 100 successful jobs worldwide. Operator Company in Abu Dhabi was the first operator in the Middle East to try the solution in 2022. The below section summarizes the solution results based on the feedback from the first three wells piloted by Abu Dhabi Oil Company. The value chain is broken down into three key categories as follows: –Pre-running: the solution brought an increased level of quality control paired with an automatically generated pre-tally list. Further to this, an increase in personnel is safety assisted by a reduction in tubular handling and removal of personnel from high-risk positions. –During running: the accuracy of the running sequence was ensured by the utilization of the solution ‘‘Watchdog Alerts’. These highlighted to the user any deviation from the original plan, preventing error and minimizing any downtime generated. All of this was made available in real-time in a cloud environment to anyone within the Operator Company with credentials for accessing the system. –Post-running: monitor and compare rig performances through digitally enabled data analytics In conclusion, significant cost reduction (from 15 to 45 k$ per job for a 70k$ rig day rate), mitigating risks of non-productive time by reducing human errors (from 5 to 15 hours per job), ensuring safety and integrity of the well and enabling operators to track its assets and monitor running operations in real-time.

OnePetro

doi: 10.2118/214517-MS

SPE

SPE-214517-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Abu Dhabi, asia government, barcode, control non-expected operational cost, data analytic, data mining, digital implementation, drilling operation, drilling technology adnoc, enhance efficiency, information, international association, Operator Company, pipe, real time system, receipt, tally, uae government, Upstream Oil & Gas

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (1.00)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Well Drilling > Drilling Operations (1.00)
Data Science & Engineering Analytics > Information Management and Systems > Data mining (0.82)

Technology:

Information Technology > Data Science (0.82)
Information Technology > Architecture > Real Time Systems (0.55)
Information Technology > Communications > Networks (0.35)

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Abstract As wells completed with wireline retrievable downhole safety valves are becoming mature, issues related to seal bore and nipple profile tend to develop, causing the safety valve to be non-integral. Without a fully functioning downhole safety valve, these wells cannot produce and must be shut in. One option to overcome this issue is to utilize an Insert Valve Carrier (IVC) connected to the existing downhole safety valve (DHSV). The IVC has an anchoring mechanism to hang the system on depth, replacing the function of the damaged nipple. Also, it is equipped with upper and lower sealing elements to seal across the existing control line outlet in the tubing providing hydraulic fluid to operate the safety valve. An electronic setting tool sets the anchors at the pup joint slightly above the safety valve nipple while positioning the sealing elements across the control line outlet. The system is simple to use and can easily be set with Slickline, Electric Line, or Coiled Tubing with CCL capability for correlation or a No-go assembly. Several successful jobs were conducted between 2021-2022 in 4-1/2″ and 7″ completions in the Offshore Abu Dhabi field. Before mobilization, System Integrity Test is performed to ensure the system passes the pressure test and the safety valve functions properly. In this operation, the IVC and the safety valve were set using an Electric Line, taking advantage of real-time reading from the CCL for correlation. Once on depth, a signal was sent from the surface, setting the anchors and sealing elements. A normal procedure to apply pressure in the control line was performed. When the pressure holds, it provides a positive indication that the packing elements seal properly. An inflow test on the flapper was performed to confirm its integrity. Following the installation, flow tests were performed at different rates to ensure the system worked fine and evaluate the potential. This system has successfully restored the downhole safety valve functionality, which permits the wells to produce again after being inactive for a long time. In addition, the success of this system eliminates the need for expensive workovers.

OnePetro

doi: 10.2118/214554-MS

SPE

SPE-214554-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Anchor, application, asia government, assembly, completion equipment, Completion Installation and Operations, DHSV, electric line, est, flapper, insert valve carrier system, ivc, Kuwait government, mechanism, nipple, reinstating downhole safety valve functionality, safety valve, uae government, Upstream Oil & Gas

Country:

Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.36)
Asia > Middle East > Kuwait > Jahra Governorate (0.25)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places: Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Abu Dhabi Field (0.99)

SPE Disciplines:

Well Completion > Completion Selection and Design > Completion equipment (1.00)
Well Completion > Completion Installation and Operations (1.00)
Health, Safety, Environment & Sustainability > Safety (1.00)

Technology: Information Technology (0.48)

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Managing High Bottom-Hole Temperature Challenges in Ultra-Slim Long Horizontal Wells

Ovwigho, Efe Mulumba (SLB)

OnePetroMay, 2023

Abstract The deep carbonate reservoir formation on this field has proven to be an extreme High-temperature (HT) environment for downhole equipment. While drilling the 5000 - 6500 ft 5-7/8" slim long laterals across this formation, very high bottom-hole circulating temperatures is encountered (310-340 degF) which exceeds the operating limitation for the downhole drilling/formation evaluation tools. This resulted in multiple temperature-related failures, unplanned trips and long non-productive-time. It became necessary to provide solution to reduce the BHCT-related failures. Performed offset-wells-analysis to identify the BHT regime across the entire-field, create a heat-map and correlate/compare actual formation-temperatures with the formation-temperature-gradient provided by the operator (1.4-1.8 degF/100-ft). Drilling reports and MWD/LWD/wireline logs were reviewed/analyzed. Reviewed tools-spec-sheets, discovered most of the tools had a maximum-temperature-rating of 300-302 degF and were run outside-technical-limits. Observed temperature-related-failures were predominant in very long slim-laterals, which indicated that some of the heat was generated by high flow rate/RPM and solids in the system. Tried drilling with low-RPM/FR, did not achieve meaningful-temperature-reduction. After detailed risk-assessment and analysis on other contributing factors in the drilling process, opted to incorporate mud-chiller into the surface circulating-system to cool-down the mud going into the well. Upon implementation of the mud chiller system, observed up to 40 degF reduction in surface temperature (i.e. temperature-difference between the mud entering/leaving mud chiller). This was achieved because the unit was set-up to process at least twice the rate that was pumped downhole. Also observed reduction in the bottom-hole circulating temperature to below 300 degF, thus ensuring the drilling environment met the tool specifications. The temperature-related tools failure got eliminated. On some of the previous wells, wireline logging tools have been damaged due to high encountered downhole temperature as circulation was not possible prior-to or during logging operation. The implementation of the mud-chiller system has made it possible for innovative logging thru-bit logging application to be implemented. This allows circulation of cool mud across the entire open hole prior to deployment of tools to perform logging operation. This has made it possible for same logging tool to be used for multiple jobs without fear of tool electronic-components failure die to exposure to extreme temperatures. The long non-productive time due to temperature-related tool failures got eliminated. The numerous stuck pipes events due to hole deterioration resulting from multiple round trips also got eliminated. Overall drilling operations became more efficient. The paper will describe the drilling challenges, the systematic approach implemented to arrive at optimized solution. It will show how good understanding of drilling challenges and tailored-solutions delivers great gains. The authors will show how this system was used to provide a true step-change in performance in this challenging environment.

OnePetro

doi: 10.2118/214623-MS

SPE

SPE-214623-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country:

Europe > United Kingdom (0.46)
North America > United States > Texas (0.28)
Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.15)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Well Drilling > Drilling Operations > Directional drilling (1.00)
Reservoir Description and Dynamics > Formation Evaluation & Management > Open hole/cased hole log analysis (1.00)

Technology: Information Technology (0.68)

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Successful Sidetrack in Challenging Formation Resulted in CAPEX Reduction

Al-Raml, Haidar (Saudi Aramco) | Ufondu, Kenechukwu (Saudi Aramco) | Widjaja, Danang (Saudi Aramco) | Almasri, Abdulrakeeb (Halliburton Saudi)

OnePetroMay, 2023

Abstract This paper discusses the added value of a new approach to exiting an existing wellbore, where the normal practice forces the plug and abandonment (P&A) of the existing lateral before cutting the window into a new lateral, particularly when an off-bottom cemented (OBC) liner is required. The new approach includes the construction of a Technology Advancement of Multilaterals Level 4 (TAML 4) junction to maintain well integrity and the successful development of a re-entry window that allows access to both the existing and the new slim wells. Not only has this technique unlocked massive potential, but it has also led to an enhancement in the utility and reduction in capital expenditure (CAPEX). The successful Level 4 sidetrack and re-entry window deployment is directly related to the robust system design. The application developed includes an anchor with a guide and high-torque capability, a TAML Level 4 junction created in a shape that will lead to smooth, repeatable access in the future, and a customized re-entry window system to further maximize the well potential. The true value is in allowing access to both the existing and the newly drilled lateral without using a rig or decompleting the well. Such operations use tubing exit whipstock (TEW) and pressure isolation sleeves, both of which can be run and retrieved in a rigless manner. The rigless access has allowed the existing lateral to be used as an observation well. Using permanent downhole gauges (PDHGs) enables real-time monitoring of the pressure and temperature and periodic logging to evaluate the reservoir. The newly drilled lateral can be the primary producing lateral; rigless access equally helps recover the well in case of any production challenges. The newly designed multilateral is a game changer for both mature and new developments because it maximizes reservoir production and helps reduce CAPEX by requiring fewer wells to be drilled. The improved well integrity minimizes well workover operations, which creates cost savings. This paper discusses the following aspects:A successful Level 4 junction construction from a slim re-entry existing/mature well. Repeatable accessibility to the lateral and motherbore. Meeting the motherbore objective as required. Delivering an OBC lateral liner and maintaining the well integrity.

OnePetro

doi: 10.2118/214627-MS

SPE

SPE-214627-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.15)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Well Drilling > Drilling Operations > Directional drilling (1.00)
Well Completion (1.00)
Production and Well Operations (1.00)

Technology: Information Technology > Architecture > Real Time Systems (0.54)

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Application of Abrasive Waterjet Technology for Large and Multi-Casing Cutting

Di, J. (CNPC Offshore Engineering Co Ltd) | Zhao, X. (PetroChina Investment Overseas Middle East Limited-Abu Dhabi) | Lv, J. (CNPC Offshore Engineering Co Ltd) | Rao, L. (PetroChina Investment Overseas Middle East Limited-Abu Dhabi)

OnePetroMay, 2023

Abstract For matured offshore oil field in Abu Dhabi, lots of wells need to be permanent abandonment. According to the regulations on offshore permanent well abandonment, the wellhead shall be cut from 4 m below the mudline. The purpose of this paper is to introduce an abrasive waterjet technology to solve the challenge so that cut two or three casings around seabed which is cemented together with a high efficiency method. Traditional operations for cutting multi-casing depend on milling cement and cutting single layer, which are inefficiency and time cost. Abrasive Waterjet technique utilize high water with abrasive material to cut multi-layer casing. This method does not limited to casing layer mount and size. The abrasive waterjet system is mainly composed of speed rotation control system, hydraulic anchoring system, cutting tools, ground supporting equipment, etc. The nozzle parameters were optimized by flow field simulation, and the corresponding tools were designed. The cutting tools includes several spray nozzles and transmit high pressure abrasive to casing surface to cutting. The cutting tools 360 degree rotation powered by speed rotation control system and fixed by hydraulic anchoring system. The abrasive waterjet is placed in cutting location in inner casing. A two-caisng cementing inner casing 339.7mm and outer casing 850mm together is used as an experimental target. In order to closer simulate the actual working conditions on site, inner casing has 150mm off-center. The abrasive waterjet was inside the target to cutting. The system connects to a pump with 70MPa and 0.9-1.0m/min flow rate. 40-60 mesh garnet is used as abrasive material. In order to simulate the cutting conditions on offshore site, the cutting tool is always submerged under the water during the test. After about 8 hours of experiments, the target cutting is successfully completed, and the cutting head and protective sleeve, hydraulic rotation speed control device and hydraulic anchoring device work smoothly, which proves that the abrasive jet cutting system has reasonable design and stable performance. The wear resistance of the nozzle during the experiment is analyzed. The nozzle does not change in the outlet diameter after 8 hours wear. Through this experimental research, it is proved that the reasonable selection of nozzle parameters and construction parameters can meet the overall cutting of eccentric multi-layer casing. This parameters can support for on-site construction parameter selection. If a traditional milling method to solve this problem, it usually takes several days. The advantages of this technology in time efficiency are proved. In addition, an offshore abandonment operation was applied by this technique which was conducted on a three-casing cemented casing. This paper will provide a novel method to solve the multi-casing cutting challenge for offshore well permanent abandonment. The abrasive jet cutting system design, tools and parameters feasibility of field application are verified. Compare to traditional method, it can greatly reduce the operation time and project cost.

OnePetro

doi: 10.2118/214631-MS

SPE

SPE-214631-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country:

Asia > China (0.96)
Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.36)

Genre: Research Report > New Finding (0.49)

Industry: Energy > Oil & Gas > Upstream (1.00)

Oilfield Places:

Asia > China > Liaoning > Bohai Basin > Liaohe Basin > Liaohe Field (0.99)
Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Abu Dhabi Field (0.97)

SPE Disciplines:

Well Drilling > Casing and Cementing > Casing design (0.46)
Production and Well Operations > Well Decommissioning (0.35)
Well Completion > Hydraulic Fracturing (0.35)
(2 more...)

Technology: Information Technology (1.00)

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Leveraging Flexible Digital Approach to Enhance Wellbore Survey Data Management and Collision Avoidance in Offshore Fields, Abu Dhabi

Ness, K. (ADNOC Offshore, Abu Dhabi, UAE) | Kolakkodan, S. (ADNOC Offshore, Abu Dhabi, UAE) | Toader, L. (ADNOC Offshore, Abu Dhabi, UAE) | Zamin, S. A. (ADNOC Offshore, Abu Dhabi, UAE) | Mahmoud, K. Z. (ADNOC Offshore, Abu Dhabi, UAE) | Rabis, P. J. M. G. (ADNOC Offshore, Abu Dhabi, UAE) | Al Ameri, S. M. (ADNOC Offshore, Abu Dhabi, UAE) | Al Marzooqi, A. A. (ADNOC Offshore, Abu Dhabi, UAE)

OnePetroMay, 2023

Abstract This paper aim to identify potential for improving the process of gathering trajectory directional survey data, recalculating of current wellbore position based on new information by automating the process, performing collision avoidance analysis scanning and providing feedback by using machine recognition of risk while minimizing human interaction with the dataset. The envisioned result was seen as a system where wellbore survey data would flow seamlessly from acquisition at rig site into company directional survey calculation system, where programming would use the dataset to update the definitive survey listing, update forward planned surveys, run collision avoidance scan on updated planned surveys against identified offset wellbores and verify current position in relation to plan and possible deviation to same based on company policies for survey and collision avoidance and produce output for end user(s). The project outcome was a software that acts as an intermediate between field data set repository and company directional survey software package. When data set becomes available in repository, a 30-second interval repeating query recognizes the change and updated directional survey data is moved to correct wellbore, used in defining trajectory and original plan is modified allowing collision avoidance verification to run based on new wellbore survey information. The project outcome also included machine review of the collision avoidance results based on programmed company policy values, which added to the process. The project saw substantial time delay during creation due to issues identified in the challenges part below but is now running full time for company covering all offshore rigs and associated wellbore surveying activities. Learnings during the execution of the project showed both short comings of current systems, inconsistent API (Application Programming Interface) support for legacy software, and several opportunities for further improvements to the originally identified goal and potential for creating an advisory system based on current policies, further reducing the sometimes-arbitrary decision making which can result from large variation in experience levels related to understanding risk associated with directional surveying and directional drilling.

OnePetro

doi: 10.2118/214629-MS

SPE

SPE-214629-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country:

North America > United States (0.94)
Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.51)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines: Well Drilling > Well Planning > Trajectory design (1.00)

Technology: Information Technology > Artificial Intelligence > Robots > Autonomous Vehicles (1.00)

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Abstract Digital transformation has been proven to yield commercial success in the oil and gas industry with several reported advantages of value creation and business empowerment. The paper demonstrates the implementation of a breakthrough technology and ideology to steer rig operations in onshore locations in Abu Dhabi, by adopting unified Real Time Operations Center (RTOC) concept. The technology has enabled proactive evaluation of rig operations, integrated different stakeholders in one platform, and supported the decision-making process while providing additional opportunities for young engineers onsite. The unified RTOC technology approach is distinguished by empowering collaboration across functional departments. It enables higher levels of coordination of daily rig operations by converging processed and unprocessed information sources such as Technological Systems, Drilling Data Management Systems, Analytics, and Geomatics. Specifically for this exercise, the approach benefits are maximized by adopting a new concept to supervise rig operations remotely. The young drilling supervisors are settled to work on rig site, while senior drilling supervisors supports them from the office. One senior drilling supervisor can support 3 rigs at a time, covering exactly all major roles and responsibilities as if he/she is available physically onsite. The wells are monitored thoroughly with RTOC's platforms, associated risks are categorized, and several analytics were performed based on real-time data. CCTV integration with 5G technology braced the concept of monitoring the risky areas at the rig site with seamless footage. The CCTV integration was a step transformation for the proof of concept.

OnePetro

doi: 10.2118/214530-MS

SPE

SPE-214530-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.34)

Genre: Overview > Innovation (0.34)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Data Science & Engineering Analytics > Information Management and Systems (1.00)
Well Drilling > Drilling Measurement, Data Acquisition and Automation > Real time data transmission (0.47)
Well Drilling > Drillstring Design > Torque and drag analysis (0.34)
Management > Risk Management and Decision-Making > Decision-making processes (0.34)

Technology:

Information Technology > Communications > Networks (1.00)
Information Technology > Architecture > Real Time Systems (1.00)

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Sustainable Water Management Solution for Drilling Fluids Wastes

Hamdan, Tariq (ADNOC Onshore.) | Al Nuaimi, Mouza (ADNOC Onshore.) | Arena, Carmelo (SLB) | Kostic, Tijana (SLB)

OnePetroMay, 2023

Abstract Scarcity of water resources in UAE and affording a nonstop water supply for drilling operation was always a concern. The main objective of availing a fit for purpose solution was: Saving the underground water resources. Cost optimization: Saving the cost of Haulage transportation. (30-50%) Save the Total Value of waste disposal injection package. Saving the cost of salt as the treatment technologies is designed to save the salt content. HSE advantage by reducing the Transportation requirements. Simple to implement in all ADNOC rigs fleet Not affect the rig operation. Dewatering of the waste drilling fluid It is the most common and promising treatment technology. Dewatering It is the most common and promising drilling fluids waste treatment technology, this technology depends on 2 simple Mechanisms which is Coagulation and Flocculation (chemical treatment) –Coagulation is the water treatment process that causes very small, suspended particles to attract one another and form larger particles. –Flocculation is the water treatment process where the coagulated particles (pinpoint flocs) bridge together resulting in larger, more shear resistant structures that settle faster with less carryover of solid particles into the separated water.

OnePetro

doi: 10.2118/214524-MS

SPE

SPE-214524-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.17)

Industry:

Water & Waste Management > Water Management > Lifecycle > Treatment (1.00)
Energy > Oil & Gas > Upstream (1.00)
Government > Regional Government > Asia Government > Middle East Government > UAE Government (0.50)

Oilfield Places: Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Abu Dhabi Field (0.91)

SPE Disciplines:

Well Drilling > Drilling Fluids and Materials > Drilling fluid selection and formulation (chemistry, properties) (1.00)
Health, Safety, Environment & Sustainability > Environment > Water use, produced water discharge and disposal (1.00)
Health, Safety, Environment & Sustainability > Environment > Waste management (0.90)

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A Holistic Approach to Achieve Zonal Isolation Improvements Across 8 1 2 Inch Hole on the in an Offshore Field

Hassan, Azza El (Drilling, ADNOC, Abu Dhabi, UAE) | Abdelatif, Mohamed Samir (Drilling, ADNOC, Abu Dhabi, UAE) | Hamidzada, Ahmedagha (Drilling, ADNOC, Abu Dhabi, UAE) | Andrews, Kerron (Drilling, ADNOC, Abu Dhabi, UAE) | Toki, Takahiro (Drilling, ADNOC, Abu Dhabi, UAE)

OnePetroMay, 2023

Abstract In an Offshore field, off the coast of Abu Dhabi, well integrity objectives are becoming more difficult to achieve as open hole sections become deeper, laterally longer and more highly deviated. In this mature field, one of the main challenges of well construction is successfully cementing long production-casing strings covering multiple reservoirs across the 8½-in sections. This paper describes some of the techniques and best practices that were applied on these wells to achieve the required zonal isolation. Achieving zonal isolation across multiple reservoirs through a single or multi-lateral configuration is a major challenge in this field. The reservoir formation is porous and requires a special gas tight design or impermeable cement system. Inadequate hole cleaning due to poor standoff attributed to complex well design is another main limitation, resulting in insufficient mud removal leading to an uneven cement distribution around the casing. Additionally multiple pressure-testing cycles are required post cement-setting and during the completion phase, a practice that can destabilize the cement system causing it to fail. Moreover, controlling loss circulation while running or after landing casing is another challenge in this field. To overcome these challenges a series of customized improvements were applied subsequently through continuous improvement and implementing lessons learnt from previous operations. The elements of this approach included introducing higher density cement systems to cover the horizontal sections, while retaining the ECD within the required margins. Another element utilized was that of two cement slurries; Lead and tail, which were designed to achieve controlled ECD. An additional element which was also implemented addressed enhancing the flexible expandable gas tight slurry by adding Latex to achieve a fit for purpose solution. The last element of this strategy included improving hole cleaning and mud removal efficiency by optimizing spacer design and volumes in addition to the loss circulation additives in the spacer systems. Throughout the operation, the cement jobs were executed successfully with no losses. Cement jobs were evaluated through running job design simulation Vs execution parameters comparison. The approach resulted in substantial improvement on log responses. Additionally, after implementing the approach, logs were compared to offset wells from the same field to track the improvement done. The paper reviews enhanced practices implemented to overcome challenges faced during well cementing. Being able to find a solution to this complex problem, delivering a comprehensive cement quality, and improving cementing integrity on these wells resulted in expanding this approach to the rest of the fields. The improvement measures that were developed are now being adopted across all jobs to yield a similar outcome.

OnePetro

doi: 10.2118/214547-MS

SPE

SPE-214547-MS

SPE/IADC Middle East Drilling Technology Conference and Exhibition

Country: Asia > Middle East > UAE > Abu Dhabi > Abu Dhabi (0.35)

Industry: Energy > Oil & Gas > Upstream (1.00)

SPE Disciplines:

Well Drilling > Pressure Management > Well control (1.00)
Well Drilling > Drilling Fluids and Materials > Drilling fluid management & disposal (1.00)
Well Drilling > Casing and Cementing > Cement formulation (chemistry, properties) (1.00)
(3 more...)

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Abu Dhabi

ADNOC, TAQA Plan 2.4 Billion Megaproject To Pipe Seawater to Onshore Fields

Digital Implementation and Data Analytic for OCTG Running as Tool to Control Non-Expected Operational Cost and Enhance Efficiency in Drilling Operations for Operator Company in Abu Dhabi

Successful Applications of Insert Valve Carrier System in Reinstating Downhole Safety Valve Functionality

Managing High Bottom-Hole Temperature Challenges in Ultra-Slim Long Horizontal Wells

Successful Sidetrack in Challenging Formation Resulted in CAPEX Reduction

Application of Abrasive Waterjet Technology for Large and Multi-Casing Cutting

Leveraging Flexible Digital Approach to Enhance Wellbore Survey Data Management and Collision Avoidance in Offshore Fields, Abu Dhabi

Remote Drilling Supervisor – Step Changing Approach Aided by RTOC and 5G Technology

Sustainable Water Management Solution for Drilling Fluids Wastes

A Holistic Approach to Achieve Zonal Isolation Improvements Across 8 1 2 Inch Hole on the in an Offshore Field

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Collaborating Authors

Abu Dhabi