Remaining oil in the old area of ​​Jianghan Oilfield has achieved results in tapping the potential

Sinopec News Network reported recently that the Xinjing Zhong 2 Oblique-29 Well of Zhongshi Oilfield, proposed by the Jianghan Oilfield Research Institute, received a high-yield oil flow of 5.
5 tons per day.
This is the second highest production after the Zhong 8 Oblique-38 well has achieved high daily production.
The adjustment plan for high-yield wells in the old area of ​​Kouzhong Oilfield shows that this area has good potential for tapping the remaining oil
.

Since the beginning of this year, Jianghan Oilfield Research Institute has focused on the strategic goal of "trillion cubic meters of reserves, 10 million tons of oil fields, and tens of billion cubic meters of production", based on the remaining oil in old areas to tap the potential, systematically carry out re-recognition of oil reservoirs, in-depth basic geological research, and finely portray sand body development.
Establish the remaining oil distribution rules, closely follow the implementation of the planned wells, continuously optimize and adjust the planned well positions, ensure the quality of production and construction and adjust the control reduction, and help stabilize production and increase efficiency in old areas
.

In the Bamianhe Old District, with relatively low utilization of blocks such as the Jiao 4 block and the Jiao 12-oblique 40 block as a breakthrough point, the "five re-understanding" research work was carried out, and a total of 10 wells were deployed, and 2 of them will be implemented in 2020.
In the first half of 2021, two wells were implemented in the first half of 2021, with good results and frequent adjustment highlights.
In the initial stage, the average daily oil production per well was 8.
5 tons, and the accumulated oil has increased by 2,990 tons.
At present, there are still 3 wells that have passed the demonstration and will be implemented after approval
.

In the old area of ​​Pingbei, with the subdivision and reorganization of the well pattern as the main idea, the production capacity construction plan of the old area of ​​Pingbei Oilfield has been compiled for three consecutive years.
The recoverable reserves of the well are 3,980 tons, and the cumulative oil production is 61,200 tons, which is expected to increase the recovery rate by 4.
23%.
During the implementation process, real-time dynamic characterization of a single sand body combined with actual drilling lays a solid foundation for later remaining oil analysis and fine injection-production adjustments
.

　　In the Jianghan Oil Region, new progress has been made in the classification and adjustment of different types of reservoirs.
In terms of high-efficiency wells, in Yanhe, Huangchang, Mawangmiao, Zhongshi, Laoxin and other oilfields, through fine structure interpretation, sand body remaining oil distribution law Re-understanding, it is proposed to demonstrate that there are 13 high-efficiency adjustment wells.
Through 6 wells, the Lao 22 Deviated-2CZ wells that have been implemented so far have used sidetracking of the old wells to reduce costs and obtain a daily output of 3.
5 tons of profitable oil flow; the implementation of the plan is combined with the Zhongshi Oilfield.
The plan design, closely following the implementation effect, and optimizing the operation as a whole, effectively guaranteed the plan compliance rate.
Among them, the Zhong 8xie-38 well obtained a block with a daily output of 6.
3 tons.
These breakthroughs have effectively promoted the effective and stable production of the Jianghan Oil Region
.