SBIR Phase I: A Tool for In-situ Stress Measurement in Deep Downhole Environments

SBIR 第一阶段：深井环境中原位应力测量工具

• 批准号: 2126639
• 负责人: Hamed Soroush
• 金额: $ 25.6万
• 依托单位: TEVERRA LLC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-04-01 至 2023-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2126639&HistoricalAwards=false
• 关键词: SBIR; Phase; Tool; situ; Stress

The broader impact/commercial potential of this Small Business Innovation Research (SBIR) project is to improve safety and economics of subsurface operations, such as drilling, stimulation, production, and injection, associated with geological carbon sequestration and production of geothermal heat and fossil fuels from subsurface rock formations. These operations can affect personnel safety, loss of capital, significant damage to the environment, and increase emission of greenhouse gases. To optimize subsurface operations, knowledge of the state of stress in rock formations is essential. Failure to construct reasonably accurate stress models costs the oil and gas industry several billions of dollars annually. However, determination of in-situ stresses is one of the major challenges in the subsurface engineering and currently no technology directly measures these stressees in deep formations. This project advances a tool to measure these stresses directly. This SBIR Phase I project proposes to design and develop a robust an innovative downhole tool for direct measurement of all stress components and the stress orientation in deep wells with any well trajectories. The objectives of the Phase I research study include: 1) Develop analytical and numerical solutions to accurately obtain far-field stresses from near-wellbore stresses. 2) Design and render the tool and all its components for borehole sizes range 7” to 12 ¼”. 3) Develop numerical modeling and simulation of different downhole conditions. 4) Design the mechanical, hydraulic, and electrical components, materials, and sensors/transducers and preparation for prototyping. The proposed tool has a novel modular design for wireline, drill-pipe and coil tubing applicable to vertical, deviated, and horizontal wells. This measurement can be repeated as needed to determine the full stress tensor. The technology is automatically operated from the surface. The exact position and orientation of the tool is determined by an assembly and magnetometer, respectively.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

这个小型企业创新研究（SBIR）项目的更广泛的影响/商业潜力是提高地下作业的安全性和经济性，如钻井，增产，生产和注入，与地质碳封存和地热和地下岩层化石燃料的生产有关。这些操作会影响人员安全、资本损失、对环境造成重大损害，并增加温室气体排放。为了优化地下作业，了解岩层中的应力状态至关重要。未能构建合理准确的应力模型每年使石油和天然气行业损失数十亿美元。然而，确定地应力是地下工程中的主要挑战之一，并且目前没有技术直接测量深层地层中的这些应力。本项目提出了一种直接测量这些应力的工具。该SBIR第一阶段项目旨在设计和开发一种坚固耐用的创新井下工具，用于直接测量具有任何井眼轨迹的深井威尔斯中的所有应力分量和应力方向。第一阶段研究的目标包括：1）开发分析和数值解，以准确地从近井应力获得远场应力。 2)设计和渲染工具及其所有组件，用于7”至12 ¼"的井眼尺寸范围。 3)开发不同井下条件的数值建模和模拟。 4)设计机械、液压和电气元件、材料和传感器/传感器，并为原型制作做准备。 所提出的工具具有新颖的模块化设计，适用于垂直井、斜井和水平威尔斯井的钢丝绳、钻杆和连续油管。可以根据需要重复该测量以确定全应力张量。这项技术是从地面自动操作的。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。