Case Study: The Application of Inflow Control Devices in the Troll Oil Field

Abstract

Case Study: The Application of Inflow Control Devices in the Troll Field Knut Herman Henriksen; Knut Herman Henriksen Baker Oil Tools Search for other works by this author on: This Site Google Scholar Eli Iren Gule; Eli Iren Gule Norsk Hydro ASA Search for other works by this author on: This Site Google Scholar Jody R. Augustine Jody R. Augustine Baker Oil Tools Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Europec/EAGE Annual Conference and Exhibition, Vienna, Austria, June 2006. Paper Number: SPE-100308-MS https://doi.org/10.2118/100308-MS Published: June 12 2006 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Henriksen, Knut Herman, Gule, Eli Iren, and Jody R. Augustine. "Case Study: The Application of Inflow Control Devices in the Troll Field." Paper presented at the SPE Europec/EAGE Annual Conference and Exhibition, Vienna, Austria, June 2006. doi: https://doi.org/10.2118/100308-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Europec featured at EAGE Conference and Exhibition Search Advanced Search AbstractThis paper describes the application of Sand Control Screens coupled with Inflow Control Devices (ICDs) in the Troll Oil sub sea field development. Technical and functional description, qualification, computer modeling and production experience verifies that completions with ICDs yield higher volumetric recovery of oil from each well compared with more conventional sand control completion methods. Improved sand control results from the screen systems inflow distribution functionality.IntroductionLocated in the North Sea 80 km west of the Norwegian West Coast, the Troll Oil sub sea development is one of the Norwegian continental shelf's largest oil producing fields. The thin oil column (4–27m) represented from the start a tremendous challenge, both in terms of drilling and completion operations. Numerous technological as well as operational barriers have been broken.[1] From installing single 1000 m long horizontal sections, current drilling and completion practices incorporate the construction of down hole drain systems like the "Starfish" well, covering more than 13500 m of reservoir section through 5 laterals (Figure 1).Although exhibiting a large volume of oil in place, the thin oil column was initially not considered economical for development. However, the construction of increasingly longer horizontal sections (Figure 2), the implementation of multilateral well technology, and a novel sand screen completion have made the field development successful.One of the main contributions to this was Hydros invention and subsequent development of the ICD technology.[2] This was incorporated into conventional screen technology aiming at balancing the inflow along the long horizontal sections.Troll Completions and Inflow Control DevicesFrom the start the reservoir sections of the Troll wells were placed horizontally near the oil water contact, normally 0.5 m above,[3] in order to keep maximum distance to the coning potential of the gas cap. The wells penetrate both the high permeability (1–30 D) C-sands and the low to medium permeability (5–600 mD) M-sands. Sand screens were selected according to the formation's sand control requirement. Initially a dual screen pre-pack consisting of a 0.012″ gap inner round wire, 20/40 mesh resin coated quartz gravel and a 0.012″ gap keystone shaped wire outer jacket, mounted on 6 5/8″, 13% chrome base pipe. This was considered an optimal screen design for Troll. However, horizontal reservoir sections approaching 4000 m, increasingly tortuous well paths and the introduction of multi lateral well technology.[4] led to the requirement for a more robust screen design. Keywords: production control, Modeling & Simulation, Upstream Oil & Gas, icd, application, sand control, Directional Drilling, production monitoring, flow control equipment, horizontal section Subjects: Drilling Operations, Well & Reservoir Surveillance and Monitoring, Formation Evaluation & Management, Directional drilling, Completion Monitoring Systems/Intelligent Wells, Sand Control, Flow control equipment This content is only available via PDF. 2006. Society of Petroleum Engineers You can access this article if you purchase or spend a download.