SEAFLOOR NON-ISOBARIC GAS SEEP SAMPLER

海底非等压气体渗透采样器

• 批准号: 576539-2022
• 负责人: Ventura, GregoryGT
• 金额: $ 1.09万
• 依托单位: Saint Mary's University
• 依托单位国家: 加拿大
• 项目类别: Idea to Innovation
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=755029
• 关键词: SEAFLOOR; NON; ISOBARIC; GAS; SEEP

The Seafloor Gas Seep Sampler (SGSS) system is to be used to collect samples of seeping gas from the bottom of an aqueous environment such as the seafloor. It can be used on irregular surfaces and tight spaces as long as the bubbles of seeping gas are free to rise up into the water column. The system can be used at all water depths. For very shallow depth, gas collections can be made by an individual scuba diver. For deeper samples, a remotely operated vehicle (ROV) or manned deep-submergence vehicle (DSV) is required to retrieve a sample - which is the same standard operation limitation for all isobaric gas samplers. The SGSS system can be operated in a safe manner that does not allow for a workplace hazard. The modular nature of the design allows for more than one sample to be taken per dive making it potentially more cost effective than previous designs. The SGSS system solves three critical problems: 1) unrestrained deployment of the system to any water depth or environmental condition; 2) it is safe to use in all such environments; and 3) has a low cost that is unparalleled to anything else currently on the market. Previous isobaric gas sampler designs require the collection vessel to be heavily reinforced to contain the expanding gas while it is brought to the sea surface. Special valves are needed to ensure the safe transfer of the high-pressure gases. The SGSS can likely be produced for a fraction of that cost. The SGSS affords up to 4 individual gas samples to be collected. Pressure release values have been used in the past, but they can fail to release the exceeding pressure allowing for the previous types of gas samplers to have potential explosion hazards. The SGSS design allows expanding gas to safely escape to ensure a fool proof operating condition. The gas within the SGSS does not exceed 10 PSI. The gas is also kept to its pristine geochemical condition as the SGSS relies on a water barrier to maintain a seal. The initial prototype of the SGSS system has been built and fully tested. A US patent application is being drafted by Bereskin & Parr and will be submitted.

海底气体渗漏取样器系统将用于从海底等含水环境的底部收集渗漏气体样本。它可以用于不规则的表面和狭窄的空间，只要渗透气体的气泡可以自由上升到水柱中。 该系统可用于所有水深。对于非常浅的深度，气体收集可以由个人水肺潜水员进行。对于更深的样品，需要遥控潜水器或载人深潜潜水器来取回样品-这是所有等压气体取样器的相同标准操作限制。 SGSS系统可以以不允许工作场所危险的安全方式运行。模块化的设计允许每次潜水采集多个样本，这使得它比以前的设计更具成本效益。SGSS系统解决了三个关键问题：1）系统不受限制地部署到任何水深或环境条件; 2）在所有这些环境中使用都是安全的;以及3）具有目前市场上任何其他产品都无法比拟的低成本。先前的等压气体采样器设计需要收集容器被大量加固，以在气体被带到海面时容纳膨胀的气体。需要特殊的阀门来确保高压气体的安全输送。SGSS的生产成本很可能是该成本的一小部分。SGSS可提供多达4个单独的气体样品进行收集。过去曾使用过压力释放阀，但它们可能无法释放超出的压力，从而使以前类型的气体采样器具有潜在的爆炸危险。SGSS的设计允许膨胀气体安全逸出，以确保傻瓜证明操作条件。SGSS内的气体不超过10 PSI。由于SGSS依靠水屏障来保持密封，因此气体也保持其原始的地球化学条件。SGSS系统的初步原型已经建成并经过充分测试。Bereskin & Parr正在起草美国专利申请，并将提交。