产品展厅>>研发&服务>>大安3H井和大安103H井压力动态监测与解释技术服务
为了加强大安3H井和大安103H井压裂、返排测试期间的气藏变化动态监测。浙江油田与我公司合作在大安3H井和大安103H井井口地面位置安装“高频压力监测与评价一体化设备”，在压裂施工、闷井返排和试油试气期间，持续以最高1ms间隔采集井口油套压力，进行压力动态监测与解释技术服务。
在施工井口安装一支高频率、高精度压力计监测压裂中的压力
利用高频压力的水击波分析确定进液点位置、暂堵转向效果、桥塞封隔效果
基于渗流压力的压裂停泵解释确定裂缝类型、缝长逢高，SRV体积、渗透率、平均压力及裂缝展布等
焖井期间压力降落解释服务及返排测试期间动态评估和优化
本项目能够对压裂期间的射孔-坐封封隔有效性、裂缝开启及暂堵、裂缝规模、改造规模、地层流动参数等进行定量化解释；对闷井返排和试油试气期间的开井时机、地层裂缝动态、返排油嘴更换、产能预测等各种信息进行分析；并且实现压裂期间套变监测，便于压裂期间采取适当措施。该项目对现场生产具有很好的指导作用，在实际应用中具有很强的竞争优势。
Products>>Project Development>>Study on the influence of volume fracturing boundary and seepage characteristics of dense reservoir
At present, the exploration targets and key research objects of the oilfield are mainly dense reservoirs. For such reservoirs, it is often necessary to carry out reservoir reconstruction, well pattern infilling and other measures through multi-stage hydraulic fracturing in long horizontal wells to improve oil and gas production and realize efficient and economic development. However, multi-stage fracturing of horizontal wells is a world-class problem and a technical bottleneck restricting the application of horizontal wells in low-permeability reservoirs. The key technologies are: studying horizontal well reservoir engineering to solve the problem of horizontal well layout; Study the in-situ stress field to solve the problems of hydraulic fracture initiation and shape; Study the optimal design of staged fracturing in horizontal section to solve the problem of multi-stage fracture setting; Study the staged fracturing technology and tools to solve the implementation problem of staged fracturing in horizontal wells; Crack monitoring is studied to solve the problem of multi-stage crack evaluation.
Establishment and solution of mathematical model for large-scale
volume fracturing
Influence of seepage law in volume fracturing zone and
undisturbed formation of horizontal well on well test model
Study on dense non-Darcy seepage: The influence of start-up
pressure gradient on flow is analyzed
Study on the method of determining formation parameters by data
inversion and analysis of influencing factors
The mathematical model of injection and production seepage
resistance and the formula of pressure-distance under different liquid volume are studied,
and the characteristic curve is analyzed
Productivity analysis and prediction calculation model and
productivity curve using unstable well test data
The project has made a breakthrough in the research of tight multi-stage fracturing horizontal well test technology, and proposed a tight well test analysis method, which provides a technical guarantee for well test evaluation in the process of shale oil volume fracturing development. The effective combination of model establishment, model solution and production application is realized. The interpretation provides parameters such as formation permeability, well storage constant, skin coefficient, fracture half-length and start-up pressure. The field application effect is good.