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首页> 外文期刊>Northeastern geology and environmental sciences >BRINE DISPOSAL IN DEEP GEOLOGIC FORMATIONS OF THE CAMBRO-ORDOVICIAN (SAUK SEQUENCE) OF NEW YORK: IMPLICATIONS FOR NEW SALT-CAVERNGAS-STORAGE RESERVOIRS
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BRINE DISPOSAL IN DEEP GEOLOGIC FORMATIONS OF THE CAMBRO-ORDOVICIAN (SAUK SEQUENCE) OF NEW YORK: IMPLICATIONS FOR NEW SALT-CAVERNGAS-STORAGE RESERVOIRS

机译：纽约坎布-奥陶纪（SAUK层序）的深层地质构造中的盐水处置：对新的盐盐洞穴储集层的意义

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An enormous amount of brine is generated during the leaching process in salt caverns designed for gas storage. Injection of the brine into deep-subsurface, porous, and permeable formations may be the most environmentally acceptable method of disposal. Thus, subsurface brine disposal has become an unavoidable and expensive part of salt-cavern storage development. As a result, careful investigation of possible brine disposal in deep geologic formations is, therefore, a prerequisite for salt-cavern development. Pelrographic and petrophysical analysis of rock samples from the Beekmarttwon Group (Sauk Sequence) in central and western New York indicate that the lithologies of this group were deposited in a shallow marine of tidally influenced environment. The main rock components of the Beekmantwon Group are dolostone, sandstone, siltstone, and shale. Based on the variations in mineral composition, sedimentary microstructures, and fossil contents, the Beekmantwon Lithologies were divided into lithofacies as follows: 1) Coarsegrained sandstone (Potsdam Formation), 2) Bioturbated, sandy dolostone (Potsdam Formation); 3) Glauconitic, sandy dolostone (Potsdam Formation), 4) Stylolitic, sandy dolostone (Theresa Formation), 5) Stromatolitic dolostone (Theresa Formation), 6) Oolitic dolostone (Theresa Formation), 7) Laminated, silty to sandy dolostone (Theresa Formation), 8) Quartzose dolostone with anhydrite laths (Theresa Formation), and 9) Fossiliferous dolostone. Mercury injection of the selected samples indicates that the Potsdam formation (sandstone) is characterized by higher porosity, permeability, and recovery efficiency compared to the overlying Theresa Formation (sandy dolostone and dolostone). The diagenetic modifications of the lithologies of the Theresa Formation have resulted in alternating impermeable to porous intervals. These impermeable intervals may serve as seal units.
机译：在为气体存储设计的盐穴中，浸出过程中会产生大量盐水。将盐水注入深层，多孔和可渗透的地层可能是最环保的处置方法。因此，地下盐水处理已成为盐洞存储开发中不可避免且昂贵的部分。因此，对深层地质构造中可能的盐水处置进行仔细研究是开发盐穴的先决条件。纽约中西部Beekmarttwon组（Sauk层序）岩石样品的岩相和岩石物理分析表明，该组岩性沉积在潮汐影响环境下的浅海中。 Beekmantwon集团的主要岩石成分是白云岩，砂岩，粉砂岩和页岩。根据矿物成分，沉积微结构和化石含量的变化，将比克曼特文岩层划分为岩相：1）粗粒砂岩（波茨坦组）; 2）生物扰动砂质白云岩（波茨坦组）; 3）青冈质砂质白云岩（波茨坦组），4）针状质砂质白云岩（Theresa组），5）滑石质白云岩（Theresa组），6）橄榄质白云岩（Theresa组），7）层状粉质至砂质白云岩（Theresa组）地层），8）带硬石膏板条的石英白云岩（特雷萨地层）和9）化石白云岩。所选样品的汞注入表明，波茨坦地层（砂岩）的特征是与上覆的特里萨地层（桑迪白云岩和白云岩）相比，孔隙度，渗透率和采收率更高。特里萨组岩性的成岩作用改变导致渗透层交替渗透。这些不可渗透的间隔可用作密封单元。

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