Well cementing, Completion, Testing Field

The operation of cementing, in which a casing is run into the well and cement is injected into the annular space between the wellbore and the casing, its main purpose is to protect and support the casing in oil and gas wells, sealing oil, gas and water and other formations. 

completion refers to the process of connecting the bottom hole with the reservoir in a certain structure after the open hole reaches the designed depth, which is the last important link of drilling work and the beginning of oil production engineering, it is closely related to oil production, water injection and the development of the whole oil and gas field, and its quality directly affects the production capacity and economic life of the oil well. 

The contents are: 1 formation dip logging (to understand the underground structure and sedimentary structure) , 2 saturation logging (to identify lithology, oil, gas and water reservoirs) ; 3 wireline formation testing (for oil, gas, water reservoir testing) ;. It mainly measures the petrophysical properties of the oil, gas and water layers, monitors the working conditions of each oil layer, and checks the technical conditions of the development wells, etc. , it is an important basis for development wells to take operation measures and to adjust oilfield development. It includes saturation logging, production logging and engineering logging.