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In the pursuit of maximizing oil production to meet the 2030 strategy of producing 4.5 MM bopd, KOC has adopted a massive plan of implementing new technologies through pilot trials. Some of the technologies successfully tested are fiber optic sensors for real time reservoir monitoring, horizontal wells for increased production through increased reservoir contact, inflow control device and interval control valves for improving cumulative production and managing reservoir uncertainties, multilateral wells to reduce well footprint with increased production and acid tunneling technology to gain oil from old wells in depleted reservoirs.Horizontal wells are considered superior over conventional wells in terms of production improvement due to increased reservoir contact. Despite this, these wells pose severe production challenges due to variations in permeability, reservoir pressure, reservoir fluid properties and frictional pressure drop along horizontal section. Preventing water/gas breakthrough, equalizing inflow with minimizing pressure loss, minimizing annular flow and heel-to-toe effect, delay non-uniform water progress, avoiding by-passed oil, increasing sweep efficiency and ultimate recovery are some of the primary challenges that are required to be addressed for gaining optimum advantages of horizontal wells. One of the promising technologies to address all these challenges is the application of advanced completions, such as inflow control device (ICD) and interval control vale (ICV). These completions help to enhance hydrocarbon recovery and reserves management.The technology was test trialed successfully through multidisciplinary team approach and best practices. The value addition of the technology was evaluated by interacting with major operators and service companies. The evaluation of ICD and ICV was done by inviting designs from all the major companies and appropriate systems were selected with respect to reservoir and fluid properties, maintaining the policies of commercial group. For the first pilot test, suitable wells and systems were selected to avoid drawbacks that might lead to pilot failure and eventually disapproval of the technology from top management. This paper describes the results of the first ICD and ICV pilots, methodology, best practices and selection criteria that ultimately resulted into large scale field implementation of these technologies. 2 assets. Technological innovation in the exploration and production sector has equipped the industry with the equipment and practices necessary to continually increase the production of oil and gas to meet the rising demand. Based on the growing trends of technology, KOC included one of the important aspects in the frame of its strategic objectives "Realize the value from Technology". The Key Performance Measure (KPM) of this strategic objective is to insure that the Technology is implemented at the asset, at a scale that ideally addresses/resolves the identified challenges. In view of this objective and associated KPM, several task force teams...
In the pursuit of maximizing oil production to meet the 2030 strategy of producing 4.5 MM bopd, KOC has adopted a massive plan of implementing new technologies through pilot trials. Some of the technologies successfully tested are fiber optic sensors for real time reservoir monitoring, horizontal wells for increased production through increased reservoir contact, inflow control device and interval control valves for improving cumulative production and managing reservoir uncertainties, multilateral wells to reduce well footprint with increased production and acid tunneling technology to gain oil from old wells in depleted reservoirs.Horizontal wells are considered superior over conventional wells in terms of production improvement due to increased reservoir contact. Despite this, these wells pose severe production challenges due to variations in permeability, reservoir pressure, reservoir fluid properties and frictional pressure drop along horizontal section. Preventing water/gas breakthrough, equalizing inflow with minimizing pressure loss, minimizing annular flow and heel-to-toe effect, delay non-uniform water progress, avoiding by-passed oil, increasing sweep efficiency and ultimate recovery are some of the primary challenges that are required to be addressed for gaining optimum advantages of horizontal wells. One of the promising technologies to address all these challenges is the application of advanced completions, such as inflow control device (ICD) and interval control vale (ICV). These completions help to enhance hydrocarbon recovery and reserves management.The technology was test trialed successfully through multidisciplinary team approach and best practices. The value addition of the technology was evaluated by interacting with major operators and service companies. The evaluation of ICD and ICV was done by inviting designs from all the major companies and appropriate systems were selected with respect to reservoir and fluid properties, maintaining the policies of commercial group. For the first pilot test, suitable wells and systems were selected to avoid drawbacks that might lead to pilot failure and eventually disapproval of the technology from top management. This paper describes the results of the first ICD and ICV pilots, methodology, best practices and selection criteria that ultimately resulted into large scale field implementation of these technologies. 2 assets. Technological innovation in the exploration and production sector has equipped the industry with the equipment and practices necessary to continually increase the production of oil and gas to meet the rising demand. Based on the growing trends of technology, KOC included one of the important aspects in the frame of its strategic objectives "Realize the value from Technology". The Key Performance Measure (KPM) of this strategic objective is to insure that the Technology is implemented at the asset, at a scale that ideally addresses/resolves the identified challenges. In view of this objective and associated KPM, several task force teams...
With an objective to increase the production to 4.0 MM BOPD, Kuwait Oil Company is developing its fields with optimum technology solution. Technological innovations in E&P sector are on growing trend, based on which, KOC included ЉRealize the value from TechnologyЉ in the frame of its strategic objectives. The Key Performance Measure (KPM) of this objective is to adopt new technologies at a scale that ideally addresses the identified challenges. In view of this objective and associated KPM, it was decided to implement the advanced completion technologies in various reservoirs of the Company.KOC has several prolific reservoirs spread all over Kuwait. These reservoirs have mild to severe differences in rock properties and fluid characteristics. Burgan is the major Cretaceous sandstone structure extended all over the Kuwait with varied properties. The permeability of Burgan in general is in multiple Darcy. Its fluid viscosity in NK and SEK is low, in the range of 0.5-3 cP, while in WK it is 28 -30cP. Minagish Oolite in West and Maududd in North are major carbonate reservoirs with varying rock and fluid properties. Horizontal wells are considered superior over conventional vertical wells due to augmented production through increased reservoir contact. However, these wells pose severe production challenges due to variations in permeability, reservoir pressure as well as frictional pressure drop along horizontal length. Hence, equalizing inflow, delay water breakthrough, minimizing heel-to-toe effects and maximizing the ultimate recovery are the primary challenges to be addressed to gain advantages of horizontal wells.One of the promising technologies to address these challenges is the advanced completions: inflow control device (ICD) and Interval control valves (ICV). The campaign of application of advanced completions in KOC was started in 2009 under the umbrella of R&T. The completions include various types of ICVs and ICDs. The latter includes passive ICD, Advanced ICD with sliding sleeve, Autonomous ICD without moving parts and ICD with stimulation port. The technology application was based on its value addition and Company's commercial group policies, while maintaining the technical superiority. The technology was trialed successfully in series in various fields and reservoirs through best practices and multi-disciplinary team approach. The focus was made to avoid drawbacks in pilot stage to avoid disapproval of the technology by management. Application of this technology led to multifold increase in sustained production in horizontal wells in all reservoirs and simultaneous reduction in water cut. This paper covers the results of the advanced completion pilots, application methodology & novel practices and selection criteria that ultimately led to tremendous increase in production and full-scale field implementation of the technology.
The reservoir of Prirazlomnoye field is composed of carbonate rocks. Premium port completion technology—a valve with an inflow/injection control device—was piloted in the Arctic offshore environment, allowing selective stimulation of the bottomhole pay zone and high-rate injection via both the ports and an inflow control device (ICD). This technology mitigated the risks of premature water breakthrough in the production well and improved the waterflood performance. The project began with the analysis to justify the use of premium port technology with ICD in the horizontal well based on the reservoir simulation model. The use of a slotted screen was compared against the premium port with ICD scenario. Then the project entered the second phase that involved well operations. Following the drilling and petrophysical interpretation of well logging data, the completion system parameters were computed to identify the number of premium port valves, packer installation intervals, and the number and sizes of ICD nozzles for each zone. This was followed by selective treatment with hydrochloric acid at specific pressures and injection rates. The horizontal hole was divided into five sections, each having a premium port valve for injection with ICD and an acid injection premium port. The intervals were separated by inflatable annulus packers. Every successful opening/closure of the valve was clearly observed at the surface. After the acid stimulation job, the well was successfully tested and brought into injection. The joint efforts of the drillers, completion engineers, and reservoir simulation engineers resulted in the selection and installation of suitable premium port valves and ICDs, driving the well performance close to its design parameters. The simulation of the proposed technology using a sector model has shown a 5% increase of cumulative oil production against a 10% decrease of cumulative water production. Implemented in the existing offshore Arctic field, premium port technology has enabled selective acid treatment in individual reservoir zones, making it possible to reduce the skin to–1.4 on the average. This experience may be of interest to engineers in charge of selection of downhole equipment for challenging environments both on the continental shelf of Russia and beyond. This paper offers an entirely new approach to the completion of horizontal wells enabling selective stimulation and injection management without the use of intelligent well completion systems in the harsh environment of the Arctic shelf. This technology has made it possible to mitigate the risks of water breakthrough into the production well and to improve the performance of the waterflood system.
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