Application of Acoustic Variable Density Logging Technology in Petroleum Energy Development

Energy is an important factor restricting the development of national economy, and petroleum energy is the main supplier in the current world energy environment, which promotes the development of agriculture, and various industrial sectors are closely related to petrochemical products. However, with the long-term development of the oilfield, it has experienced the stages of flowing production, water injection development and three times of chemical agent injection development, the production and explorable new reserves have decreased significantly, especially after the oilfield entered the well pattern three times of infilling adjustment, because of the exploitation of thin, poor and off surface reservoirs mixed between the main oil layers. Due to the requirements of oilfield development, not only the channeling between the adjusted thin and poor layers should be prevented, but also the channeling between the adjusted thin and thick layers should be prevented. Therefore, the requirements for cementing quality are higher and higher, and the requirements for testing and evaluation standards of cementing quality are more and more accurate. In this paper, through the application of acoustic variable density logging technology in petroleum energy development, combined with the examples of acoustic amplitude and acoustic variable density logging curve, the cementing accuracy of the first, second and interface of cement sheath after cementing is further improved, so as to meet the new requirements of correctly evaluating the cementing quality in the later stage of oilfield development.