产品展厅>>研发&服务>>辰工动态负压射孔设计软件V1.0软件研制
项目主要进行辰工动态负压射孔设计软件V1.0开发，结合各油田的负压射孔结果，建立了根据负压计算射孔表皮的模型，计算得出动态负压、最小负压、最大负压、合理负压和射孔结论等计算结果，功能强大、操作简便，将为油气开采行业提供一款先进的射孔设计工具，有力推动油气资源的高效开发。
负压射孔是优化完井射孔中，广泛使用的一种技术。辰工动态负压射孔设计软件V1.0在大量岩心射孔实验基础上，并结合各油田的负压射孔结果，建立了根据负压计算射孔表皮的模型，计算得出动态负压、最小负压、最大负压、合理负压和射孔结论等计算结果。具体技术内容如下：
研究给定动态负压过程所对应的射孔孔道内曳力变化情况。
研究不同曳力变化过程对射孔孔道的冲刷能力。
计算给定动态负压过程所对应的射孔表皮。
目前市场上的射孔设计软件功能相对单一，缺乏对动态负压等关键因素的精准模拟和综合分析。本项目通过创新的技术手段，实现了对射孔过程的全面、动态模拟，能够为用户提供更科学、准确的射孔设计方案。凭借技术优势，在市场竞争中具有明显的差异化竞争力，有望迅速占领市场份额，并推动整个射孔设计软件行业的技术升级，具有很强的技术优势。
Products>>Project Development>>Establishment of wellhead pressure drop model for multi-stage volume fracturing and single-stage fracturing
Shale oil is a tight reservoir and has low conventional fracturing production, it is difficult to achieve efficient development. As a new technology, multi-stage multi-cluster fracturing engineering technology has become an important measure to increase production of shale oil and low permeability reservoirs, and is an important means to realize the economic development of shale oil. Multi-stage multi-cluster fracturing has large scale and costs, so it is important to evaluate and analyze the effect. Well testing technology is an important means to determine the fracture half length, fracture conductivity, formation permeability, formation pressure and so on. It has been widely applied for its low cost and simple process.
There are many researches on conventional fracturing well test technology at home and abroad, and the well test method is relatively perfect, but the research on large volume staged fracturing well test technology in shale reservoir is still in the initial stage, the understanding of seepage characteristics is not deep enough, and the mature interpretation method has not been formed. Research and development of well test evaluation technology for fracturing effect, determination of fracture half length, fracture conductivity, formation permeability and formation pressure in the reconstruction area become important problems to be solved for fracturing design optimization and efficient development.
Aiming at the multi-stage fracturing technology of horizontal
wells in the development process of shale reservoir, the wellhead pressure drop model of
multi-stage volume fracturing and single-stage fracturing is established. The main technical
contents include:
Study on the establishment of physical model and mathematical
model of single-stage fracturing evaluation, study on the theoretical method, study on the
solution method of mathematical model, and establish the pressure response characteristic
curve.
By analyzing the influencing factors of pressure response
characteristics, the main controlling factors of pressure curve shape characteristics were
identified, and the analysis chart was established.
Research on conversion method of wellhead-bottomhole pressure,
calculation method of wellbore vertical pipe flow under variable flow rate, variable density
and variable viscosity; mathematical solution of complex vertical pipe flow equation;
research on elimination method of pressure data fluctuation caused by water hammer based on
filtering theory.
The influence of wellhead pressure accuracy and stop pump time on
the corresponding characteristics of the model is analyzed.
Study on inversion of measured data and formation parameters
method.
Based on the analysis and study of the construction data during fracturing, this project puts forward the well test analysis method of pump stop pressure drop, and forms the corresponding calculation module, so as to determine the fracture half length, fracture conductivity, formation permeability of reconstruction area and formation pressure of the fracturing well, and provides technical support for the fracturing effect evaluation in the process of shale oil volume fracturing development . This project not only provides a means of fracturing effect evaluation, but also provides a new method of using fracturing data to carry out formation evaluation, which has important application value. Moreover, there is no need to increase the test cost for this kind of data analysis, and it has immediate, accurate and low-cost technical and economic advantages.