What are the common problems and solutions when using degreaser in oil drilling casing?
What are the common problems and solutions when using degreaser in oil drilling casing?
Common problems that may be encountered when using degreaser in oilfield drilling casings and their solutions include:
1. ** Casing corrosion problems ** : Long-term production activities and formation changes can lead to increased casing corrosion, which requires the use of anti-corrosion degreaser and coating technology to prevent and slow down the corrosion rate.
2. ** Casing damage mechanism ** : Casing damage may be caused by many factors such as well body, geology, production and corrosion, so it is necessary to study and propose repair measures.
3. Selection of degreaser ** : Select degreaser suitable for specific oilfield conditions, such as high temperature and high pressure conditions, need to choose a degreaser that can maintain stability under extreme conditions.
4. ** Repair and treatment measures ** : For the damaged casing, mechanical shaping, chemical repair process, casing subsidy technology or deep casing technology can be used to repair.
5. ** Optimization of workover technology ** : By optimizing and improving the existing workover technology, the key technology library adapted to different types of casing losses and well changes is formed to improve the success rate of repair.
6. ** Improve the performance of degreaser ** : Develop a new type of cementing fluid loss agent to meet the needs of oil field cementing under high temperature and high pressure conditions, reduce the loss of water at high temperature, and maintain stable thickening performance.
7. ** Technical research and innovation ** : Continue to carry out special technical research, establish a technical database, in-depth study of historical casing damage casing change well restoration technology and successful cases, to provide guidance and suggestions.
8. ** Integrated sand control construction ** : In view of the complex situation of high risk of pressure operation and difficult overhaul and killing, continuous tubing is used to control pressure punching sand inside the tubing to improve the success rate of sand control.
9. ** Improve operation accuracy ** : The application of new technology such as GYRODATA casting gyro technology to improve the precision and efficiency of anti-collision well construction and reduce errors.
Through these measures, the problems encountered in the process of using degreaser in drilling casing can be effectively solved, and the efficiency and safety of oilfield development can be improved.
