高含硫油气井测试作业安全控制技术

Safety control technology for testing operation of high-sulphur oil and gas wells

针对地层天然气中硫化氢含量等于或大于1500 mg/m^3的高含硫油气井,测试作业时存在硫化氢泄漏风险的实际情况,从硫化氢特性、典型案例分析入手,研究测试行业预防硫化氢的通用做法和惯例,进而对设备、工具、材料、设施等的选择、调试提出具体的要求,制定了硫化氢井测试作业“十大”禁令。现场作业人员坚持“救人优先”、“两权相害取其轻”的原则,通过不断演练和优化最终形成X-15井硫化氢风险识别、防护与控制技术,确保了重点井安全高效完成测试作业。该井形成的油气井测试作业硫化氢风险识别控制技术,确保了集团公司重点井达到预期的勘探目标,为国内外同类井测试作业提供了范例。

Because the content of hydrogen sulfide in natural gas is equal to or greater than 1500mg/m^3 in high-sulfur oil and gas wells,there is a risk of hydrogen sulfide leakage during test operation.Ten prohibitions on hydrogen sulfide well testing operations have been formulated.These prohibitions are the specific requirements for the selection of equipment,tools,materials,facilities and testing,by analyzing the characteristics of hydrogen sulfide and typical case and studying the general practice and practice of hydrogen sulfide prevention in test industry.Field workers adhere to the principle of“saving people first” and“harming each other lightly”.Through continuous drilling and optimization,hydrogen sulfide risk identification,protection and control technology is finally formed in Well X-15,which ensures the safe and efficient completion of testing operations in key wells.The technology of hydrogen sulfide risk identification and control in oil and gas well test operation formed by this well ensures that the key wells of the group company achieve the expected exploration target,and provides an example for similar well test operation at home and abroad.