CAJ | 학술논문

针对煤层气井的压裂特点和产出机理，综合应用流体力学、线弹性断裂力学、传热学、计算数学和软件工程等方面的知识，提出了煤层压裂裂缝三维延伸模型和产量动态预测模型，其中裂缝三维延伸模型考虑了煤层、上下遮挡层之间的地应力和岩石力学参数变化的影响，产量动态预测模型考虑了煤层气先解吸扩散后渗流入井的产出机理.在此基础上研制了煤层气井三维压裂优化设计软件，并通过实例计算验证了其实用性和可靠性.
침대매층기정적압렬특점화산출궤리，종합응용류체역학、선탄성단렬역학、전열학、계산수학화연건공정등방면적지식，제출료매층압렬렬봉삼유연신모형화산량동태예측모형，기중렬봉삼유연신모형고필료매층、상하차당층지간적지응력화암석역학삼수변화적영향，산량동태예측모형고필료매층기선해흡확산후삼류입정적산출궤리.재차기출상연제료매층기정삼유압렬우화설계연건，병통과실례계산험증료기실용성화가고성.
In accordance with the fracturing and producing mechanism incoalbed methane well, and combining the knowledge of fluid mechanics, linear elastic fracture mechanics, thermal transfer, computing mathematics and software engineering, the three-dimensional hydraulic fracture propagating and dynamical production predicting models for coalbed methane well is put forward. The fracture propagation model takes the variation of rock mechanical properties and in-situ stress distribution into consideration. The dynamic performance prediction model takes the gas production mechanism into consideration. With these models, a three-dimensional hydraulic fracturing optimum design software for coalbed methane well is developed, and its practicality and reliability have been proved by example computation.