The "two firsts" innovation results of shale gas in Jianghan Oilfield have reached international leadership

Recently, the project of "Fuling Shale Gas Development Effect Evaluation and Development Technology Policy Optimization" undertaken by Jianghan Oilfield Research Institute successfully passed the appraisal
of the Ministry of Petrochemical Science and Technology.
The expert group unanimously agreed that the overall research results of the project reached the international leading level
.

Since the project was launched in January 2015, the institute has achieved "two firsts" major innovation results in accordance with the overall research idea of "integration of physical models and ground models, combination of actual production dynamics, dynamic capacity evaluation as the foundation, optimal deployment of well positions, and realization of benefit development as the goal":

First, for the first time, a dynamic capacity evaluation technology was established that linked with the bottom flow pressure of shale gas wells during the production and distribution period considering the physical properties and fracturing effects of shale.

Second, for the first time, a method
for optimizing the deployment of horizontal wells in complex structural areas considering stress distribution, structural morphology and fracture development characteristics was established.

During the project research period, the shale gas team of the institute innovated thinking, focused on key technologies, and focused on solving bottlenecks
.
They systematically carried out the research on the dynamic production capacity evaluation method of shale gas wells, established the flow pattern identification plate of single well in Fuling gas field, proposed the "shale gas well capacity coefficient" to evaluate the dynamic production capacity of shale gas, established a dynamic production capacity evaluation method with shale gas well production characteristics, effectively guided the field operation arrangement of the first phase, and provided strong technical support
for the gas field in 2017 with a gas production of 6 billion cubic meters 。 Based on the microseismic monitoring results, the institute evaluated the longitudinal and plane reserves of shale gas by combining the fracture height as the constraint and production dynamic analysis, numerical simulation and geological modeling, and established a suitable evaluation technology for the utilization of reserves in Fuling gas field, which effectively guided the development and adjustment of Fuling shale gas field, and provided support for the research of stable production and development adjustment technology of gas field.
In the third aspect, on the basis of evaluating the overall adaptability of the first phase of the development technology policy, the development technology policy was optimized according to different geological conditions, which comprehensively supported the preparation of the two production and construction plans of Jiangdong and Pingqiao blocks in the complex structural area, and effectively supported the construction of
10 billion square meters of production capacity in the gas field.

At the same time, the institute actively does a good job in the transformation of innovative achievements
.
During the research period, a total of 8 national patents have been declared, and 3 have been authorized so far; 14 standards were formulated and approved, including 3 national standards, 3 energy industry standards, and 8 enterprise standards; He has published
15 papers in domestic core and public journals.