Improving Sweep Efficiency by Zonal Isolation Using High Expansion Ratio Inflatable Plugs - A Case Study II

2019 ◽  
Author(s):  
Manish Kumar ◽  
Nakul Varma ◽  
Gaurav Dangwal ◽  
Manoj Gupta ◽  
Preyas Srivastava ◽  
...  
Keyword(s):  
Expansion Ratio ◽  
Sweep Efficiency ◽  
Zonal Isolation

Improving Sweep Efficiency by Zonal Isolation Using High Expansion Ratio Inflatable Plugs: A Case Study

2017 ◽  
Author(s):  
Aman Goyal ◽  
Mayank Varshney ◽  
Sanket Kadam ◽  
Nimish Pandey ◽  
Arunabh Parasher ◽  
...  
Keyword(s):  
Expansion Ratio ◽  
Sweep Efficiency ◽  
Zonal Isolation

Case Study: Zonal Isolation Challenges in the Midway-Sunset Field of the San Joaquin Valley

2015 ◽  
Author(s):  
Juan José Gomez Valadez ◽  
Larry Todd ◽  
Matthew Cleveland ◽  
Travis Clark ◽  
Matt Kruse
Keyword(s):  
San Joaquin Valley ◽  
Zonal Isolation

Undersaturated Hydrocarbon Reservoir Waterflooding: A simulation Approach to Performance Assessment

2021 ◽  
Author(s):  
Adekunle Tirimisiyu Adeniyi ◽  
Miracle Imwonsa Osatemple ◽  
Abdulwahab Giwa
Keyword(s):  
Oil Recovery ◽  
Net Present Value ◽  
Oil Production ◽  
Base Case ◽  
Present Value ◽  
Sweep Efficiency ◽  
Recovery Method ◽  
Solution Approach ◽  
Hydrocarbon Reservoir

Abstract There are a good numbers of brown hydrocarbon reservoirs, with a substantial amount of bypassed oil. These reservoirs are said to be brown, because a huge chunk of its recoverable oil have been produced. Since a significant number of prominent oil fields are matured and the number of new discoveries is declining, it is imperative to assess performances of waterflooding in such reservoirs; taking an undersaturated reservoir as a case study. It should be recalled that Waterflooding is widely accepted and used as a means of secondary oil recovery method, sometimes after depletion of primary energy sources. The effects of permeability distribution on flood performances is of concerns in this study. The presence of high permeability streaks could lead to an early water breakthrough at the producers, thus reducing the sweep efficiency in the field. A solution approach adopted in this study was reserve water injection. A reverse approach because, a producing well is converted to water injector while water injector well is converted to oil producing well. This optimization method was applied to a waterflood process carried out on a reservoir field developed by a two - spot recovery design in the Niger Delta area of Nigeria that is being used as a case study. Simulation runs were carried out with a commercial reservoir oil simulator. The result showed an increase in oil production with a significant reduction in water-cut. The Net Present Value, NPV, of the project was re-evaluated with present oil production. The results of the waterflood optimization revealed that an increase in the net present value of up to 20% and an increase in cumulative production of up to 27% from the base case was achieved. The cost of produced water treatment for re-injection and rated higher water pump had little impact on the overall project economy. Therefore, it can conclude that changes in well status in wells status in an heterogenous hydrocarbon reservoir will increase oil production.

Sweep Efficiency Increasing of Fractured Oil-Wet Reservoirs: Case Study of Central Khoreyver Uplift Fields (Russian)

2018 ◽  
Author(s):  
Evgenii Viktorovich Yudin ◽  
Aleksei Vadimovich Chorniy ◽  
Nina Yurevna Churanova ◽  
Aleksei Vitalevich Soloviev ◽  
Marsel Mansurovich Khairullin ◽  
...  
Keyword(s):  
Sweep Efficiency

Reaching Better Zonal Isolation by Continuous Improvement: A Case Study of Northwestern Onshore, Peru

2020 ◽  
Author(s):  
Abraham Pingo ◽  
Victor Hugo Soriano ◽  
Jaime Villanueva ◽  
Edgar Jimenez ◽  
Elvis Vasquez ◽  
...  
Keyword(s):  
Continuous Improvement ◽  
Zonal Isolation

Solid Expandable Technology for Zonal Isolation of Loss Circulation Formation: Case Study Shuaiba Formation

2008 ◽  
Author(s):  
Ekpe Joseph ◽  
Alexey Alexeenko ◽  
Jamal Al-Thuwani ◽  
Mohamed Emad ◽  
Rauf Khanlarov
Keyword(s):  
Zonal Isolation

Case Study of Ultralightweight Slurry Design Providing the Required Properties for Zonal Isolation in Devonian- and Mississippian-Age Central-Appalachian Reservoirs

2005 ◽  
Author(s):  
David S. Kulakofsky ◽  
Steven Greg Snyder ◽  
Richard Kyle Smith ◽  
Kyle Matthew Mork ◽  
David Samuel Coors
Keyword(s):  
Zonal Isolation

Light Weight Cement Slurry Tailored With Suspended Beads For Optimum Isolation of Highly Depleted Reservoirs in Offshore Malaysia: A Case Study

2021 ◽  
Author(s):  
Mayank Patil ◽  
Ramesh Annamalai ◽  
Brendon Tan ◽  
Avinash Kishore Kumar ◽  
Chee Hen Lau ◽  
...  
Keyword(s):  
Light Weight ◽  
Cement Slurry ◽  
New Approach ◽  
Management Quality ◽  
Production Section ◽  
Zonal Isolation ◽  
Testing Techniques ◽  
Operational Issues ◽  
Batch Mixer

Abstract Hollow-glass microspheres (beads) are widely used to generate light weight cement slurries for cementing across highly depleted zones and weaker formations; this paper discusses tailoring of a cement slurry and the execution of cementing operations for the successful deployment of an innovative liquid bead solution instead of the conventionally blended beads to achieve zonal isolation for a development well in Malaysia. Usage of dry bulk blended beads poses many challenges, such as rig and vessel silo management, quality control of beads, multiple blends on the rig and excess back-up blends. A new approach has been proposed using a liquid bead system to produce a light weight cement slurry by adding beads stabilized within a suspension fluid as another liquid additive to help eliminate the need of dry bulk blending of beads and at the same time accomplishing all the obligatory cement properties for a production casing section in depleted zones. A successful offshore application of liquid beads was executed in a production casing, meeting all the necessary property requirements for cementing in a depleted zone. The cement slurry was developed in a local field laboratory with standard laboratory testing techniques and equipment. Liquid beads can be added to the cement slurry using liquid additive pumps or batch mixed on the surface. Considering the slurry volume of the production section and the importance of a homogeneous cement slurry, liquid beads were injected into the recirculating line of the cement batch mixer. A yard trial was performed prior to the actual job which validated the easy transfer of liquid beads. Relative to the conventional dry-blended approach, this economically more efficient liquid bead cement system was easy to mix and achieved the required design density without any operational issues. The cementing operation was executed with full returns throughout the job at maximum planned displacement rates. To evaluate cement placement, a post job analysis was performed. The first application of this liquid bead technology in Malaysia was to generate a light-weight cement slurry and was successfully implemented for a 9-5/8" production casing where 167 bbl of the liquid bead base cement slurry was mixed, pumped & effectively placed.

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