Petrochemical Jingwei Southwest logging "new model" promotes shale gas development

News from China Petrochemical News Network this year, Petrochemical Jingwei Southwest Logging Branch, guided by field applications, gave full play to its technological leadership, implemented a new model of "Internet + logging", and achieved significant results in digital applications, oriented technologies, and intelligent early warning.
The progress of engineering technology in the work area and the large-scale development of shale gas in Sichuan and Chongqing
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"Digitalization" enters the fast lane of efficiency

The Southwest Mudging Branch focuses on the reality of increasing reserves and production of shale gas in the Fuling, Changning-Weiyuan and Fushun-Yongchuan areas of Sichuan, accelerating the omni-directional integration of computer, communications, big data and network technology resources, and vigorously carrying out digital research Application, independent research and development of "wellsite integrated data platform system", organically integrate logging and drilling engineering, real-time comprehensive and accurate collection of engineering, drilling fluid, geological logging and other parameters, and analyze and judge abnormal changes of each parameter , Discover and identify downhole conditions, drilling rig conditions and various complex situations to provide intuitive guidance
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The real-time transmission of wellsite parameters of the system realizes the synchronization of base and wellsite information, and achieves dynamic management and rapid decision-making while saving production and operation costs
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The system stably transmits data from all exploratory wells and deep well development wells in the Southwest Oil and Gas Field, becoming the "right assistant" for production management and scientific research personnel in the Southwest Oil and Gas Field, and was identified as a "domestic leader" at the Sichuan Science and Technology Achievement Appraisal Conference

On this basis, the logging branch has continued to innovate, and successively launched overseas versions of remote transmission of wellsite data, sour gas logging evaluation, combined well-seismic evaluation of gas-bearing sand bodies, comprehensive mud logging geosteering, and machine learning shale gas logging.
Well evaluation, intelligent early warning of drilling fluid overflow, gas drilling and logging supporting technologies, and other special logging technologies have built a seamless and full coverage network digital resource sharing platform, providing valuable real-time for shale gas exploration deployment and production Information resources have realized the decision-making distance of thousands of miles and promoted the seamless connection of exploration and development
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"Characteristic technology" achieves precise guidance

With the deepening of shale gas exploration and development, there are more and more difficult problems in shale gas development.
The Logging Branch Research Institute has determined the priority development of "drilling geological tracking research, mud logging integrated geosteering, well-seismic combined gas sand Three characteristic technologies, such as "Sports Evaluation"
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Use MWD/LWD measurement while drilling data, comprehensive logging data and dynamic tracking to design the dynamic trajectory
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In the Yongye 51-1HF well, the designed target vertical depth is 3950.

　　By adopting technical measures such as XN-MLSteer logging geosteering software + logging interpretation evaluation software + shale gas project department staff on duty 24 hours a day, integrated application elements and GR data while drilling, successfully identified Webpage 29, 35, 45 There are 14 hidden faults in wells such as, 46 platform, Yongchuan and Dingshan work areas
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The application of more than 170 wells in tight gas, sour gas and shale gas through the research of characteristic technology and comprehensive mud logging geo-steering technology has ensured that horizontal wells can penetrate high-quality reservoirs to achieve precise guidance and solve the development of shale gas.

　　"Intelligent Early Warning" Escorts Drilling Production

　　The "three highs" existing in the Sichuan Basin cannot meet the needs of shale gas development by solely relying on cuttings analysis and comprehensive logging data collection
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Faced with complex geological objects, the logging branch breaks through the traditional logging methods and devotes itself to the research of drilling early warning systems.

　　Before the construction of Well Weiye 45-6HF, the site reminded that the bottom of the well was close to Well 29-2HF and was easily affected by fracturing.
The construction party was required to implement a linkage mechanism.
Gas appeared after the well was drilled to a depth of 5367.
85 meters.
Abnormal measurement, abnormal vertical pressure, abnormal outlet flow, etc.
, on-site judgment of suspected fracturing impact, it is recommended to trip to a safe section for observation to avoid complications
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　　The researched drilling overflow intelligent early-warning technology has been promoted and applied in more than 300 wells in the Northwest Branch, which is an average of 2 minutes earlier than traditional methods, providing effective support for well control safety
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So far, a total of 534 abnormal forecasts have been accumulated, including 68 engineering anomalies, 381 geological anomalies, and 85 engineering geological anomalies, effectively improving the early warning level of drilling construction accidents, reducing accident risks and escorting drilling

　　(Fan Xiuying Hu Xiujie)