论文部分内容阅读
1972年以来,密西西比州杰克逊东南大约15英里处有三个气田,安全不断地开采着高压含硫气体。这几个气田气井的完成层位为Smackover层,深度在19700～22250英尺之间。最初井底压力波动在1750O～22000磅/英寸~2以上,井底温度为365～385°F。井内流体含硫化氢28～46％,二氧化碳3～8％,甲烷51～69％以及不凝析液。每1000立方英尺气体中约含水6～8桶。 这些气井的井底条件和流体成份形成了一种敌对环境,因此,要安全开发这些储量,需付出很大代价来研究新工艺。本文回顾了发现高压含硫气体10年来所遇到的主要问题,诸如冶金学问题,气井设计,腐蚀控制,质量控制以及安全,并研究了解决办法。
Three gas fields have been in operation about 15 miles southeast of Jackson, Mississippi, since 1972, safely and continuously producing high-pressure sulfur gas. The completion of gas fields in these gas fields is Smackover, with a depth of 19,700 to 2,250 feet. The initial bottom hole pressure fluctuations ranged from 1750 to 22000 psi, with a bottom hole temperature of 365-385 ° F. The well fluid contains 28-46% hydrogen sulfide, 3-8% carbon dioxide, 51-69% methane and no condensate. Approximately 6 to 8 barrels of water per 1,000 cubic feet of gas. The downhole conditions and fluid composition of these gas wells create a hostile environment and therefore, to safely develop these reserves, there is a great price to pay for new processes. This paper reviews the major problems encountered in the discovery of high-pressure, sour gas over the past 10 years, such as metallurgy issues, gas well design, corrosion control, quality control and safety, and explored solutions.