Tendeka offers a wide range of modified and synthetic acid blends for carbonate matrix acidizing and acid fracturing. Tendeka’s subsurface engineering team helps E&P companies optimise acidizing treatments by providing acid simulations that help to properly select acid blends, minimise volumes and pumping rates and at the same time deliver optimised injectivity or production rates. Tendeka’s team of engineering experts will not only optimise the acid design but provide recommendations on diversion or acid placement based on software modelling. Tendeka team of experts help E&P companies leverage existing data they have on their wells to assess formation damage and reservoir parameters for optimum software simulations.
Tendeka’s FloFuse Stim, is a unique acidizing solution for carbonate formations that combines a smart modified acid, that achieves optimum wormholing at lower injection rates than hydrochloric acid alone. Interventionless injection rate limiting technology that responds to dynamic changes in treatment rates and unexpected variations in fluid displacement ensures proportional distribution of treatment fluid along full length of the wellbore, and between laterals,
To achieve the efficient stimulation along the entire wellbore length, the well is segmented into multiple zones with one or more FloFuse within each zone. The valve is mounted into the base pipe or screen section. FloFuse Stim is a biased open valve which enables injection at normal distributed rates but closes once a predetermined trigger rate is reached. The target rates and trigger rates can be varied by application.
The challenges for the effective distribution are more or less the same across the reservoirs whether carbonates, shale or sandstone. They all need diversion to make it successful and more operation, cost and logistic friendly.
This technology can be applied in wells with long laterals with low matrix permeability such as in unconventional developments with high calcium carbonate content and natural and hydraulically induced fractures, such as the Eagle Ford and Austin Chalk. In addition, this technology has application in salt water disposal or water injector wells in carbonate formations that are have long laterals being stimulated in one single treatment. ICDs/AICDs can be added to the completion for producer wells.