| Title | Integration of Drilling and Workover Services in the Geothermal Project Laguna Colorada |
|---|---|
| Authors | Carlos GARCIA, Jose PEREZ |
| Year | 2020 |
| Conference | World Geothermal Congress |
| Keywords | integrated drilling services, workover, drilling, geothermal project, Sol de Mañana geothermal field. |
| Abstract | The National Electricity Company (ENDE) of Bolivia in compliance with its obligations and responsibilities in the electric sector and its role in the energy productive chain is carrying out the Geothermal Project Laguna Colorada in the “Sol de Mañana†field, and has the purpose to supply renewable energy to the National Interconnected System (SIN), and contribute in the economic development of the country. Taking advantage of the geothermal potential in the “Sol de Mañana†area, it will be the first project of its kind in Bolivia and one of the first in South America due to the extreme working conditions. ENDE embarked on the challenge of drilling 25 new geothermal wells (vertical and directional) with an approximate depth of 2000 m. Furthermore, it requires two rigs with a winterization system to avoid problem of the freezing of the equipment due to the low temperatures in the area. The project also contemplates doing workovers to run slotted casing in 4 existing wells and 1 minor workover. In addition, civil engineering work includes the following activities: a) Construction of water pits, b) Construction of rig foundation and cellars, c) Constructions of pads and d) Maintenance of access roads, internal roads and pads during drilling works. ENDE has decided to use an Integrated Services contract model, where the principal contractor is responsible for managing the drilling operations and managing 40 different services subcontracts including the workovers. ENDE plans to change the way it administers the project from an economic, operational and contractual point of view to improve drilling performance and reduce the Non-Production Times (NPT). This will be the first Integrated Services Project in Latin America and the highest in the world 5000 m above sea level. |