Coiled Tubing-Assisted Real-Time Temperature Mapping for Discerning Completion Integrity Followed by Optimized Placement and Evaluation of a Porosity Fill Treatment for Water Shutoff in Dual-String Completion Wells: Customized Solution
- Mohammed Al Matar (KOC) | Samarendra Mohapatra (KOC) | Hamad Al-Ateeqi (KOC) | Rishika Gaur (Halliburton) | Sapna Chawla (Halliburton) | Nakul Khandelwal (Halliburton) | Mohammad Almesfer (Halliburton) | Sam Gorgi (Halliburton)
- Document ID
- Society of Petroleum Engineers
- SPE/ICoTA Well Intervention Conference and Exhibition, 24-25 March, The Woodlands, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2020. Society of Petroleum Engineers
- 3.5 Well Intervention, 2 Well completion, 3 Production and Well Operations, 3.5.5 Water Shut-off, 4.1 Processing Systems and Design, 3 Production and Well Operations, 2.10 Well Integrity, 5.6.11 Reservoir monitoring with permanent sensors, 1.6 Drilling Operations, 2.10.3 Zonal Isolation, 2.1.3 Completion Equipment, 2.2 Installation and Completion Operations, 4.1.2 Separation and Treating, 2.6 Acidizing, 4 Facilities Design, Construction and Operation, 1.6 Drilling Operations
- conformance, well integrity, DTS, water shutoff, Real Time Coiled Tubing
- 47 in the last 30 days
- 47 since 2007
- Show more detail
- View rights & permissions
|SPE Member Price:||USD 5.00|
|SPE Non-Member Price:||USD 28.00|
Increasing water cut and well integrity are currently major concerns, particularly in mature fields. Excessive water production can detrimentally affect the profitability of hydrocarbon-producing wells if not controlled properly. This paper describes a successful zonal isolation case study in a dual-string completion well with well integrity challenges and variable permeability intervals using a modified organically crosslinked polymer (m-OCP) and coiled tubing (CT)-assisted real-time temperature sensing for effective placement and post-operation evaluation.
The m-OCP system is a combination of a thermally activated, organically crosslinked polymer and particulate material for leakoff control to help ensure shallow matrix penetration. It is acid resistant, H2S tolerant, has controlled penetration, and is easy to clean up using a rotating wash nozzle. The setting time can be accurately predicted with simple laboratory tests. These characteristics make this system the preferred choice compared to the traditional cement squeeze method that is both time consuming and exorbitant. Diagnostic services delivered by CT-conveyed fiber-optic distributed temperature sensing (DTS) that add real-time capabilities to monitor well integrity assess reservoir performance and visualize treatment efficiency. Using real-time diagnostic services, tubing integrity was confirmed, and the treatment was placed in the same run, helping eliminate the possibility of an undesired leakoff. After allowing the setting time, a successful pressure test or post-cleanout DTS (in case pressure test is not feasible) was used to establish the reliability of this method.
The first attempt was made on Well A of the field; however, isolation was successful using m-OCP and conventional CT. Operation execution and production recovery took more time than planned because of the uncertainty concerning well integrity in the dual-string completion and lost circulation in the depleted reservoir, which affected the economic deliverability of the operation. The major challenges with Well B of the same type in the same field remain the same. Thus, as part of lessons learned from the previous intervention, diagnostic services were chosen for a real-time evaluation of the completion to review well integrity and accurately place the optimized treatment, thereby helping improve overall results in the most time-saving and lucrative manner.
The successful isolation of the water-producing zone/perforations in the southeast Kuwait field using m-OCP and CT-assisted real-time DTS to review well integrity can be considered a best practice for addressing similar challenges globally.
|File Size||1 MB||Number of Pages||15|
Al-Houti, N., Al-Othman, M., Al-Qassar, K.. 2017. An Alternative Method for Cement Squeeze in North Kuwait: Case Study. Presented at the SPE/ICoTA Coiled Tubing and Well Intervention Conference and Exhibition, Houston, Texas, 21–22 March. SPE-184802-MS. https://doi.org/10.2118/184802-MS.
Alshammari, B., Rane, N., Al Harbi, S.. 2018. Rigless Zonal Isolation in High-Permeability and Low-Pressure Sandstone Formations Using an Organically Crosslinked Polymer Sealant: Successful Field Application. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Brisbane, Australia, 23–25 October. SPE-192099-MS. https://doi.org/10.2118/192099-MS.
El Hanbouly, H. S., Saqqa, M.A., and Constantini, N.M. 1989. Problems Associated With Dual Completion in Sip Wells: A Case History. Presented at the Middle East Oil Show, Manama, Bahrain, 11–14 March. SPE-17985-MS. https://doi.org/10.2118/17985-MS.
Mitchell, W., Martin, A. N., Stemberger, D.. 2003. Innovative Business Partnership Produces Effective Water Conformance Treatments. Presented at the SPE Annual Technical Exhibition and Conference, Denver, Colorado, 5–8 October. SPE-84623-MS. https://doi.org/10.2118/84623-MS.
Santin, Y., Matar, K., Montes, E.. 2018. Reliable Carbonate Stimulation Using Distributed Temperature Sensing Diagnostics and Real-Time Fiber-Optic Coiled Tubing Intervention in Kuwait. Presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, Brisbane, Australia, 23–25 October. SPE-191914-MS. https://doi.org/10.2118/191914-MS.