CAJ | 학술논문

页岩气是二十一世纪潜力巨大的非常规天然气资源，可以作为常规能源的重要补充，能够有效地缓解世界能源压力。页岩气开采对于中国来讲既是机遇又是挑战。页岩气存储于泥页岩中，具有自生、自储、自保的特性，且每个页岩气藏都其自身勘探开发的特性。国外页岩气开发正处于发展阶段，先后经历了直井、单支水平井、多分支水平井、丛式井、PAD水平井钻井的发展历程，水平井及欠平衡钻井技术的应用加速了页岩气的开发进程，页岩气固井主要采用泡沫水泥固井技术，完井方式以套管固井后射孔完井为主。在增产方面，采用了大型水力压裂技术，包括清水压裂、直井压裂、水平井分段压裂、重复压裂和同步压裂等，并对裂缝进行实时监测以提高采收率。
혈암기시이십일세기잠력거대적비상규천연기자원，가이작위상규능원적중요보충，능구유효지완해세계능원압력。혈암기개채대우중국래강기시궤우우시도전。혈암기존저우니혈암중，구유자생、자저、자보적특성，차매개혈암기장도기자신감탐개발적특성。국외혈암기개발정처우발전계단，선후경력료직정、단지수평정、다분지수평정、총식정、PAD수평정찬정적발전역정，수평정급흠평형찬정기술적응용가속료혈암기적개발진정，혈암기고정주요채용포말수니고정기술，완정방식이투관고정후사공완정위주。재증산방면，채용료대형수력압렬기술，포괄청수압렬、직정압렬、수평정분단압렬、중복압렬화동보압렬등，병대렬봉진행실시감측이제고채수솔。
In the 21st century, the shale gas is a greatly potential unconventional gas re- source, which can serve as an important complement to conventional energy sources, and can effectively alleviate the energy pressure of the world. Shale gas is defined as natural gas from shale formations, with the shale acting as both the source and the reservoir for the natural gas. Each of these shale gas basins is different and each has a unique set of exploration criteria and operational challenges. It has gone through four development stage, such as the vertical wells, single-lateral horizontal wells,multi-lateral horizontal wells, cluster wells, PAD horizontal drilling. Horizontal drilling and underbalanced drilling technology accelerate shale gas development process. Foam cementing and casing perforated completion are mainly means of shale gas drilling. In the stimulation aspect, we use largescale hydraulic fracturing technology, including water fracturing, vertical well fracturing, horizontal wells sub-fracturing, repeated fracturing and synchronization fracturing, and monitor the fractures from time to time in order to enhance oil recovery.