Produced water is a complex mixture of organic and inorganic compounds. In this research paper, the output is not theoretical as the work is implemented in the field to bring the produced water generated from the pay zone into a desirable range. The produced water from the pay zone is challenging as well as plays a crucial role in the oil and gas industry. The produced water contains many impurities which are not desirable for injection into the well to bring them into a desirable range study of Physico-chemical parameters and biological parameters of the raw effluent has been done experimentally. The water produced was treated effectively under suitable methods and filters viz, coagulation and flocculation by optimizing dose as per requirement, and various filtration techniques like selective filtration, series filtration, and cerini filtration. The fluid compatibility test was carried out to determine the scale and corrosion and to check the permeability retention of the XZ formation to make treated effluent water fit for injection. The treatment design was implemented properly to achieve desirable parameters for a desirable range. © 2022 Elsevier Ltd. All rights reserved.