本文選題：地熱資源 + 回灌��； 參考：《中國地質(zhì)大學(北京)》2015年碩士論文

【摘要】：天津市蘊藏著豐富的地熱資源,是我國地熱資源開發(fā)利用較早的地區(qū)之一。地熱已成為天津市環(huán)保能源的重要成員,地熱資源的開發(fā)利用規(guī)模和水平均走在全國前列。作為中國北方的經(jīng)濟中心,天津市對地熱資源的需求呈逐年上升的勢頭,但是隨著需求的不斷增加,地熱資源開采量也不斷加大,造成熱儲壓力明顯下降,影響了地熱資源的可持續(xù)開發(fā)利用。為了保護地熱資源,我們采取了多種技術措施來增加地熱流體的回灌量,而采用地表水回灌就是其中之一。在天津的很多地方,豐水期地表水資源非常豐富。因此,選取適宜的地點,利用科學的技術手段對地表水進行有效的處理,使其能夠滿足回灌的要求,就可以有效的增加地熱資源的回灌補給量。地表水回灌是為適應在我市經(jīng)濟建設過程中對地熱資源的需求量不斷增加而提出的一種對熱儲層進行補給的新型技術,為地熱資源的保護開辟了一條新的道路,具有較高的示范和推廣價值。東麗湖旅游區(qū)是山嶺子地熱田的核心地區(qū),也是天津市基巖熱儲補給的上游地區(qū),地表水資源豐富,若能將該地區(qū)的湖水進行科學處理,使其成為滿足地熱回灌要求的水源,可增加本地區(qū)地熱流體的回灌量,對地熱田集中開采區(qū)的熱儲層起到有效的補給作用。本項目通過收集該區(qū)現(xiàn)有地質(zhì)資料,綜合以往回灌試驗取得的技術成果,選取薊縣系霧迷山組熱儲層為本項目中地表水回灌的目的層進行地表水回灌的可行性研究,制定了可行的回灌試驗方案。通過前期野外踏勘、現(xiàn)場調(diào)研、水樣分析及模擬試驗等一系列準備工作,最終選定了回灌井位置、確定水質(zhì)處理工藝并建立了地表水回灌試驗基地,應用先進的技術設備和完善的工藝流程對地表水進行預處理,使之達到回灌水源的水質(zhì)標準。通過分階段回灌試驗對回灌技術方法進行了研究,該項目實現(xiàn)了地表水最大可灌量為152m3/h。本項目對于指導今后回灌工作,推進天津市地熱資源的可持續(xù)開發(fā)利用具有重要的意義。
[Abstract]:Tianjin is rich in geothermal resources, which is one of the early exploitation areas of geothermal resources in China. Geothermal energy has become an important member of environmental protection energy in Tianjin, and the scale and level of exploitation and utilization of geothermal resources are in the forefront of the country. As the economic center of northern China, the demand for geothermal resources in Tianjin is increasing year by year. However, with the increasing demand, the exploitation of geothermal resources is also increasing, resulting in a significant decrease in heat storage pressure. It affects the sustainable development and utilization of geothermal resources. In order to protect geothermal resources, we have adopted various technical measures to increase the amount of geothermal fluid recharge, among which surface water recharge is one of them. In many places in Tianjin, surface water resources are very rich in high water periods. Therefore, select the appropriate place, use scientific and technical means to effectively treat surface water, so that it can meet the requirements of recharge, can effectively increase the amount of recharge of geothermal resources. Surface water recharge is a new technology to recharge thermal reservoir in order to adapt to the increasing demand for geothermal resources in the process of economic construction in our city, and it opens a new way for the protection of geothermal resources. It has high demonstration and promotion value. Dongli Lake tourism area is the core area of Shanlingzi geothermal field and the upstream area of bedrock heat storage and recharge in Tianjin. The surface water resources are abundant. If the lake water in this area can be treated scientifically, it will become a source of water to meet the requirements of geothermal recharge. It can increase the amount of recharge of geothermal fluid in this area, and play an effective role in recharge the thermal reservoir in the concentrated mining area of geothermal field. Through collecting the existing geological data in this area and synthesizing the technical achievements of the past recharge experiments, the feasibility study of surface water recharge is carried out by selecting the thermal reservoir of Jixian system Wumishan formation as the target layer of surface water recharge in this project. A feasible scheme of recharge test was established. Through a series of preparatory work, such as field exploration, field investigation, water sample analysis and simulation test, the position of recharge well was finally selected, the water quality treatment technology was determined and the surface water recharge test base was established. The surface water is pretreated with advanced technical equipment and perfect technological process to meet the water quality standard of recharge source. In this paper, the method of recharge technique is studied by means of stage recharge experiment. The maximum irrigation capacity of surface water is 152 m3 / h. This project is of great significance for guiding the work of recharge and promoting the sustainable development and utilization of geothermal resources in Tianjin.
【學位授予單位】：中國地質(zhì)大學(北京)
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P314;P641.25

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