【摘要】 干热岩型地热作为一种大储量的清洁能源，在日趋严峻的环保形势下，正在逐渐影响着世界能源格局，并成为学术界、政府和企业关注的焦点。开发花岗岩型干热岩需要建立增强型地热系统（EGS），其核心是向储层钻井并压裂形成一定规模的裂缝网络，构建注入井和生产井的循环回路来提取热能发电。从瑞士Basel EGS工程、韩国Pohang EGS工程等花岗岩型干热岩EGS压裂工程案例可以发现，诱发地震已成为制约花岗岩型干热岩开发的关键因素，其原因在于未明确大尺寸高倾角结构面的具体位置，无法预测压裂液在压裂过程中的流动方向，导致压裂液进入此类结构面造成结构面滑移从而诱发地震。本文将针对此问题通过查明干热岩所在储层的信息对开发花岗岩型干热岩控震压裂人工热储建造方法进行介绍。更多还原

【Abstract】 As a kind of clean energy with large reserves, hot dry rock geothermal is gradually affecting the world energy pattern under the increasingly severe environmental protection situation, and has become the focus of academia, government and enterprises. The development of granite-type hot dry rock requires the establishment of Enhanced Geothermal Systems(EGS) and the core of EGS is to drill into and fracture the reservoir to form a certain scale of fracture network, and construct a circulation circuit of injection wells and production wells to extract thermal energy for power generation. From the EGS fracturing engineering cases of granite-type hot dry rock such as Basel EGS project in Switzerland and Pohang EGS project in South Korea, it can be found that the induced earthquake has become a key factor restricting the development of granite-type hot dry rock because the specific location of large-size and high-inclination structural plane is not clear, and the flow direction of fracturing fluid in the fracturing process cannot be predicted, which leads to the slip of structural plane caused by fracturing fluid entering such structural plane and inducing earthquake. This article will focus on this problem by identifying the information of the reservoir where the hot dry rock is located and furthermore introduce the construction method of seismic control and fracturing to build artificial heat reservoir for the development of granite-type hot dry rock.更多还原