The sy813 team of Yuanba project department cooperated with the fracturing team 6 of the fracturing and acidizing project department to adhere to the “one plan for one period, layout before fracturing and summary after fracturing”, strengthen the technical disclosure, strictly implement the design, and ensure the continuity of construction.
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In the past, Sinopec won the 2nd trillion cubic meter shale gas resource position in Qijiang, Chongqing.
According to Wang Yongjun, a technician from Sinopec exploration company, shale gas is natural gas that is touched and preserved in mature dark shale or high-carbon shale rich in organic matter due to the adsorption of organic matter or the existence of cracks and matrix pores in the rock.
During the construction period, the leader in charge led the whole process to direct the production.
Next, they will strengthen the fine evaluation and deployment of Xinchang structural targets and accelerate the exploration and development process of this block.
The high-quality construction of Xinye 1 well by Zhongyuan Petroleum Engineering Company has made a major exploration breakthrough.
If the development of shallow shale gas is to expand the “sheep’s intestines” into “highways”, then the development of deep shale gas is to build mountains and bridges on the Qinghai Tibet Plateau and build complex and staggered “mountain roads”.
At the same time, strengthen the communication with Party A, the designer and the cooperator, constantly explore on site and optimize the pumping procedure.
In the last 23 stages of fracturing, the average amount of sand added in each stage shall be increased from 94 cubic meters in the previous stage to 110 cubic meters.
China’s first deep 100 billion cubic meter shale gas field was built.
The Xinchang structure belongs to the complex structural belt in the southeastern Sichuan basin margin.
The deep shale gas in this structural belt has a large favorable area and large resources, and is an important field for Sinopec to increase reserves and production of shale gas.” Wang Yongjun said that deep shale gas passes through many strata, and there are many world-class problems such as large shale burial depth and complex in-situ stress, which have high technical requirements and great difficulties in exploration and development.
In view of the problems such as the construction pressure of Xinye 1 well is as high as 100-105 MPa, the long fracturing time, and the difficulty of sanding, the company organized technical backbones to discuss repeatedly, fully evaluate the risks, optimize the scheme and measures, and formulate an emergency plan.
“Xinye 1 well achieved 530000 cubic meters of shale gas per day, making a new major breakthrough in deep shale gas exploration, marking the implementation of 100 billion cubic meters of resources in Xinchang South structure.” Wang Yongjun said that this major breakthrough in shale gas exploration in Wansheng will provide a solid energy guarantee for promoting the high-quality transformation and development of Wansheng.
Geologically, it belongs to the complex structural belt on the edge of the Southeast Sichuan Basin.
Finally, the ultra-high pressure large-scale sand fracturing of 30 sections of the well ended successfully.
In this regard, the company has set up a deep shale gas research and innovation team, continued to carry out research on Key Technologies of deep shale gas, formed deep shale gas volume fracturing technology, improved exploration results, and achieved localization of fracturing equipment, tools and materials, significantly reducing exploration and construction costs.
Team sy813 of Yuanba Project Department of the company passed the commencement acceptance in only 8 days, saving 12 days from the planned period.
According to Xinhua news agency, a few days ago, Sinopec exploration company deployed Xinye 1 well in Wansheng to test 530000 cubic meters of shale gas per day, marking the implementation of 100 billion cubic meters of resources in Xinchang South structure.
Letter of commendation Sinopec exploration company highly praised the company for its excellent performance in the construction of Xinye 1 well, and expressed its willingness to continue to strengthen cooperation in the next step.
It is understood that Xinye 1 well, located in Jinlong Village, Nantong town, is the first oil and gas exploration well deployed by Sinopec exploration company in Wansheng with organic shale development, good preservation conditions, relatively moderate burial depth and good surface conditions, which is of exploration value.
Previous studies have shown that the deep shale gas in this structural belt has a large favorable area and large resources, and it is an important field for Sinopec to increase reserves and production of shale gas.
Generally speaking, shale gas buried more than 3500 meters is defined as deep shale gas.
Recently, Xinye 1 well, which was undertaken by the downhole special operation company of Zhongyuan Petroleum Engineering Company for fracturing and gas testing, has achieved a major exploration breakthrough with a daily output of 531800 cubic meters of shale gas, thus implementing the construction of 100 billion cubic meters of resources in Xinchang, and realizing the overall connection of the “Xinchang South Dongxi Dingshan Lintan field” in the complex structural belt on the Southeast Sichuan basin margin of Sinopec, The overall resource volume has reached 119305 billion cubic meters, becoming the second trillion cubic meters of shale gas resource position discovered by Sinopec after Fuling shale gas field, which will make an important contribution to ensuring China’s energy security.
After the completion of the first 7 stages of fracturing, blowout test shall be carried out, and relevant units shall be organized to discuss, adjust the performance parameters of fracturing fluid, improve the sand carrying capacity of fluid, and reduce the risk of sand plugging.
Its source is a mixture of biogenic and pyrolysis.
The road to the rise of shale gas fracturing technology in Sichuan Basin.
Its main component is methane, which is recognized as clean energy.
We can imagine the difficulty.
Good news! Xinye 1 well has successfully tested gas and implemented 100 billion cubic meters of resources.
PetroChina held a working meeting of Sichuan Chongqing shale gas front headquarters.
“The Xinye 1 well deployed in Wansheng, with a drilling depth of 5756 meters, is a deep shale gas risk exploration well in Xinchang structure.
Well location background well Xinye 1, with a drilling depth of 5756 meters, is a deep shale gas risk exploration well deployed by Sinopec exploration company in Xinchang South structure, Qijiang District, Chongqing.
