On December 26, the reporter learned that Dongfang Geophysical Exploration Company closely followed the exploration and deployment of oil and gas fields, focused on building a new growth pole for the integration of geology and engineering, comprehensively improved service guarantee capabilities, and helped make new progress in the development of unconventional oil and gas benefits.
Different from conventional oil and gas, in the process of unconventional oil and gas exploration and development, geophysical technology supports a long industrial chain and high requirements, from the optimization of favorable areas, well location optimization, drilling guidance and tracking, to the implementation of engineering fracturing. Dongfang Geophysical Exploration Company adheres to the problem-oriented, innovates the management model, organization model and service model, continuously improves the safeguard measures, and strives to meet the needs of oil and gas field exploration and development.
In order to create a new service model in the field of unconventional oil and gas, Dongfang Geophysical Exploration Company focuses on exploring and applying geophysical information in the field of engineering, continues to break through the bottleneck of unconventional oil and gas geology and engineering integration, and strives to efficiently transform geological achievements into production benefits.
Closely focus on the whole process of unconventional exploration and development to carry out technical research, give full play to the role of geophysical prospecting technology in shale oil and gas, tight oil and gas deployment, reservoir transformation, and reservoir development, and form a number of exploration and development supporting interpretation technology series, providing strong technical support for the construction of oil and gas field production capacity.
Starting from the efficient service of oil and gas field capacity construction, Dongfang Geophysical Exploration Company put forward a new idea of "three changes": the service direction has changed from exploration and development to drilling engineering and fracturing engineering technical support, and the service content has changed from finding traps and fixing well locations to sweet spot selection, well location deployment, development plan, precise guidance, fracturing optimization, and capacity evaluation, and the service mode has changed from "staring at profiles" to "staring at drill bits".
Vigorously promote the production organization model of "entering the site, going to the well site, all-weather, and the whole process", and dispatch technical support personnel to implement integrated on-site dynamic follow-up, solve the problems encountered in the drilling process at the first time, and help the well position to complete the drilling smoothly. In recent years, Dongfang Geophysical Exploration Company has established a number of on-site front-line sites in key production capacity construction areas such as southern Sichuan shale gas, Xinjiang mixed shale oil, Ordos tight gas and shale oil. Technicians insist on front-line service and provide 24-hour tracking services for more than 1,000 wells, providing a solid guarantee for promoting the construction of oil and gas field production capacity.
Focusing on the production needs of oil and gas fields, Dongfang Geophysical Exploration Company has divided into a number of research teams to carry out technical research in the whole production chain. Researchers give full play to the advantages of geological and engineering integration, and deepen the technical research on complex surface, high-precision modeling and static correction, and "true" surface pre-stack imaging according to the characteristics of tight oil and gas, shale oil and gas, coalbed methane, and lithologic oil and gas reservoirs, and form a "double-high" processing and interpretation supporting technology, which greatly improves the quality of advanced dataThe use of "** VSP" innovation to form a "well-ground joint" surface ** and VSP synchronous treatment supporting technology;In view of the precise guidance and real-time guidance, based on the initial velocity field of the drilling platform, the first-class point-by-point guidance technology based on the results of logging while drilling stratification is innovatively formed to improve the reservoir drilling rateIn view of the existing problems of horizontal well fracturing, the formation pressure technology based on the equivalent medium theory was explored and applied, and the geological research results and on-site production practice were used to design personalized fracturing schemes to improve the fracturing effect.
Dongfang Geophysical Exploration Company continues to strengthen the guiding role of geological theory in exploration and development, and systematically integrates and innovates in multiple disciplines such as comprehensive geological research, geophysical prospecting methods, reservoir development, and software research and development, forming a series of shale gas desserts and comprehensive evaluation technologies, which effectively improves the service capacity of the whole chain of shale gas production.
*The innovation of geology-engineering integrated management has played an important supporting role in the benefit development of unconventional oil and gas reservoirs. In the exploration and development of tight sandstone gas in Ordos in Changqing Oilfield, fine petrophysical modeling, pre-stack geostatistical inversion and other technologies are applied to improve the accuracy of the reservoirIn the exploration and development of Jimsar shale oil in Xinjiang exploration area, the fine characterization technology of sweet spot of medium and high maturity mixed shale oil has been innovatively formed, and the drilling rate of sweet spot in horizontal wells has increased from 85% to more than 91%, and it has also provided technical support for the exploration and production of many oil and gas fields such as Southwest Oil and Gas Field, Zhejiang Oilfield, and Jilin Oilfield.
Dongfang Geophysical Exploration Company has given full play to the advantages of geological and engineering integration, and has formed a series of applicable technologies for unconventional exploration, which has effectively supported the exploration and production of oil and gas fields and made important contributions to promoting the development of unconventional oil and gas benefits.
*丨China Petroleum News.
Reporter丨Tan Ye.
Correspondent丨Jia Xiaoling.
Editor丨Feng Jun.
Editor丨Hua Jinyan.