Rigless Zonal Isolation in High-Permeability and Low-Pressure Sandstone Formations Using an Organically Crosslinked Polymer Sealant: Successful Field Application
| Autor: | Yoann Santin, Khaled Matar, Nitin Rane, Abdullah Al-Kinderi, Sultan Al Harbi, Safaa Mohammad, Baraa Al-Shammari |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
Permeability (earth sciences) Materials science 020401 chemical engineering chemistry Sealant 02 engineering and technology Polymer 0204 chemical engineering Composite material 010502 geochemistry & geophysics 01 natural sciences 0105 earth and related environmental sciences |
| Zdroj: | Day 3 Thu, October 25, 2018. |
| DOI: | 10.2118/192099-ms |
| Popis: | This paper describes a rigless and cost-effective field implementation of conformance polymer sealant (CPS) and particulate-CPS (P-CPS) systems used successfully in high-permeability and low-pressure reservoirs for zonal isolation intervention. The CPS system is an organically crosslinked polymer that is thermally activated to effectively seal the targeted interval. The P-CPS system combines the CPS system with particulates that provide leakoff control to help ensure shallow matrix penetration of the sealant. The traditional method for zonal isolation consists of rig intervention for cement squeeze, which can be time-consuming and expensive. In high-permeability and low-pressure reservoirs, several unsuccessful attempts can extend the intervention by two or more weeks. CPS and P-CPS systems provide a predictable and controllable right-angle set time that can help to ensure sealing on the first attempt. These systems do not develop compressive strength, simplifying the cleanup stage by quickly and easily jetting it out of the wellbore with coiled tubing (CT), as opposed to cement that must be drilled/milled out. This paper describes laboratory evaluations, treatment design methodologies, and two case histories from Kuwait, including one well that produced 1,600 BOPD after reperforations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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