Layer | Fill | Outline |
---|
Map layers
Theme | Visible | Selectable | Appearance | Zoom Range (now: 0) |
---|
Fill | Stroke |
---|---|
Collaborating Authors
A group of people who really care how drillers code the memos added to the daily drilling report is the data scientists--who find that the coded tags do not match the activity. A program that helps drillers code is one of three technologies featured in a JPT series on drilling measurement innovation.
- North America > United States > Texas (1.00)
- North America > Canada (1.00)
- Europe > United Kingdom (1.00)
- (2 more...)
- Geology > Geological Subdiscipline (0.67)
- Geology > Rock Type (0.46)
- North America > Canada > Alberta > Western Canada Sedimentary Basin > Alberta Basin > Westerose Field (0.99)
- Europe > United Kingdom > England > Welton Field (0.99)
- Asia > Middle East > Oman > Ad Dhahirah Governorate > Arabian Basin > Rub' al-Khali Basin > Safah Field (0.99)
- (5 more...)
- Information Technology > Knowledge Management (0.40)
- Information Technology > Communications > Collaboration (0.40)
Abstract Since the drilling started on the remote artificial islands located in UAE the operator used multiple initiatives to enhance the performance. One of them was the development of Operational Performance Improvement Plan(OPIP) targeting key aspects of the well planning and construction with an aim to improve the performance and reduce cost. The paper describes the thought process and steps taken to implement the OPIP and bring the performance to the new level for the operator. The main objective in harsh economic conditions was to construct the wells safer, with less cost and more efficiently. To achieve the goal, several well construction optimization workshops were organized aiming to change the drilling processes, operations procedures, tools, equipment and well design, as well as to have a clear plan on smooth expanding the extended reach drilling envelop. As a result, the operational performance improvement planwas developed and joint well engineering, subsurface and operations team was set to ensure the implementation. The main purpose of the plan was the standardization of all processes between few rigs, elimination of non-necessary activities and utilization of fit-for-purpose tools during execution phase. The OPIP had over80 items, and everyone of them was targeting specific drilling / completion activities. As part of the implementation, the process required a multi-discipline approach including but not limited to drilling, completions, equipment, subsurface, production, rig and service contractors with subsequent small task forces and focal point assigned to each individual action for time delivery, follow up and closure. At the same time not all the initiatives were implemented โ some were rejected due to significant increase of operational risks and / or due to HSE associated risks. The process uses a live tracker and it resulted in significant performance improvements, when time for some operations decreased by 25%(i.e. blow out preventer test time), some activities were eliminated (i.e. wiper trips), drilling practices were completely changed (i.e. use of integral packer) and as a result, the project duration was reduced by one year as of to date. The manuscript describes a structural approach to the optimization of the well construction process with an objective to improve time and cost associated. The proposed ideas can be used at any project worldwide, especially on high cost, extended reach wells drilling projects.
- Asia > Middle East > UAE > Abu Dhabi > Arabian Gulf > Rub' al Khali Basin > Satah Al-Razboot SARB Field > Arab Formation (0.99)
- Asia > Middle East > Oman > Central Oman > South Oman Salt Basin > Nahr Umr Formation (0.99)
- Asia > Middle East > Kuwait > Jahra Governorate > Arabian Basin > Widyan Basin > Hith Formation (0.99)
The Longest Horizontal Well Drilled in The U.A.E., Geosteered in a Thin Calcareous Dolomite Sublayer
Abbas, Nashat (Zakum Development Company (ZADCO)) | Al Nokhatha, Jamal (Zakum Development Company (ZADCO)) | Farouz, Ameer (Zakum Development Company (ZADCO)) | Mohamed, Emad (Zakum Development Company (ZADCO)) | Abbas, Syed Haidar (Zakum Development Company (ZADCO)) | Hui, Wang (Schlumberger Middle East S. A.)
Abstract September 2012, ZADCO drilled the longest well to date in the U.A.E. to test the productivity and injectivity of a low permeability, carbonate reservoir in a giant Middle East oil field. The extended reach well was drilled to a total measured depth of 24,390 ft., with a horizontal length of 11,015 ft. The borehole target zone was a ~3.5 ft. thick calcareous dolomite sublayer sandwiched between upper and lower ~4 ft. thick limestones. The critical factors for success were: (1) LWD tools capable of differentiating calcareous dolomite from the nearby limestones; and (2) LWD sensors close to the bit as possible to enable prompt geosteering reactions to possible lateral facies changes. Challenges were: (1) the capability of the jackup rig to drill the required distance; (2) minimizing hole undulations; and (3) remain within the 3.5 ft. target zone. Concerns were raised about the use of nuclear chemical source density tools and the risk of a lost nuclear source in hole should the drill pipe become stuck. To address these concerns, the second half of the lateral section was steered without a chemical nuclear source in the downhole tool string. A LWD formation pressure test tool was run post drilling to evaluate formation mobility. The result supported well placement in the higher permeability dolomite layer which was later validated by production and injection results. This paper illustrates good geosteering practices in a challenging long horizontal well with carefully selected LWD program to achieve the target and reduce risks.
Abstract According to the International Drilling HSE (Health, Safety, and Environment) management standards and advanced management experience as well as hazard management techniques, CNOOC (China National Offshore Oil Corporation) constantly improves HSE management objectives of offshore drilling platforms, HSE organizations and HSE operating specification in compliance with its particular drilling operation and development features, with the aim of in-place management and effective measures. During more than 30 years' drilling operations, CNOOC has already learned and summarized a set of drilling project HSE management systems, which have achieved good results. This article introduces the CNOOC Offshore Drilling HSE management organization and management system. Specifically, it presents the offshore drilling HSE guarantee measures from five aspects, which include field operation risk control, traffic safety, staff health, environmental protection, and emergency measures. Through the implementation of these management methods and measures, the CNOOC offshore drilling projects have gradually achieved the HSE management objectives: minor damage, low accident rate, and zero pollution.
- Asia > China (1.00)
- North America > United States > Texas (0.47)
- Government > Regional Government > Asia Government > China Government (1.00)
- Energy > Oil & Gas > Upstream (1.00)