By reviewing the development of “three-high” oil and gas well testing technology of Sinopec in recent years, this paper systematically summarizes the application of “three-high” oil and gas well testing technology...By reviewing the development of “three-high” oil and gas well testing technology of Sinopec in recent years, this paper systematically summarizes the application of “three-high” oil and gas well testing technology of Sinopec in engineering optimization design technology, and high temperature and high pressure testing technology, high pressure and high temperature transformation completion integration technology. Major progress has been made in seven aspects: plug removal and re-production technology of production wells in high acid gas fields;wellbore preparation technology of ultra-deep, high-pressure, and high-temperature oil and gas wells;surface metering technology;and supporting tool development technology. This paper comprehensively analyzes the challenges faced by the “three-high” oil and gas well production testing technology in four aspects: downhole tools, production testing technology, safe production testing, and the development of low-cost production test tools. Four development directions are put forward: 1) Improve ultra-deep oil and gas testing technology and strengthen integrated geological engineering research. 2) Deepen oil and gas well integrity evaluation technology to ensure the life cycle of oil and gas wells. 3) Carry out high-end, customized, and intelligent research on oil test tools to promote the low-cost and efficient development of ultra deep reservoirs. 4) Promote the fully automatic control of the surface metering process to realize the safe development of “three-high” reservoirs.展开更多
为解决钻井过程中传统溢流监测实时性和可靠性差的问题,设计开发出一套'三高'油气井早期溢流在线监测与预警系统。该系统针对常规单一参数、单一手段溢流监测实时性低、可靠性差的问题,综合应用微流量、随钻压力(pressure while...为解决钻井过程中传统溢流监测实时性和可靠性差的问题,设计开发出一套'三高'油气井早期溢流在线监测与预警系统。该系统针对常规单一参数、单一手段溢流监测实时性低、可靠性差的问题,综合应用微流量、随钻压力(pressure while drilling,PWD)以及综合录井3类参数,通过多参数、多手段相互印证的方式提高溢流监测的实时性与可靠性。提出基于专家系统和改进的贝叶斯判别相融合的溢流等钻井事故判别方法:当缺少训练数据时,应用专家系统判别溢流等钻井事故;当训练数据充足时,应用专家系统和改进的贝叶斯判别相结合识别溢流等钻井事故。改进的贝叶斯判别模型对于因属性变量间不独立而引起的误判具有一定的抑制作用,能够提高判别准确度,且训练简单,应用灵活。通过两种算法的有机结合,优势互补,可以提高井控安全的智能化水平与现场适用性。测试实验结果表明,该系统能够实时、有效地监测溢流等钻井事故。展开更多
文摘By reviewing the development of “three-high” oil and gas well testing technology of Sinopec in recent years, this paper systematically summarizes the application of “three-high” oil and gas well testing technology of Sinopec in engineering optimization design technology, and high temperature and high pressure testing technology, high pressure and high temperature transformation completion integration technology. Major progress has been made in seven aspects: plug removal and re-production technology of production wells in high acid gas fields;wellbore preparation technology of ultra-deep, high-pressure, and high-temperature oil and gas wells;surface metering technology;and supporting tool development technology. This paper comprehensively analyzes the challenges faced by the “three-high” oil and gas well production testing technology in four aspects: downhole tools, production testing technology, safe production testing, and the development of low-cost production test tools. Four development directions are put forward: 1) Improve ultra-deep oil and gas testing technology and strengthen integrated geological engineering research. 2) Deepen oil and gas well integrity evaluation technology to ensure the life cycle of oil and gas wells. 3) Carry out high-end, customized, and intelligent research on oil test tools to promote the low-cost and efficient development of ultra deep reservoirs. 4) Promote the fully automatic control of the surface metering process to realize the safe development of “three-high” reservoirs.
文摘为解决钻井过程中传统溢流监测实时性和可靠性差的问题,设计开发出一套'三高'油气井早期溢流在线监测与预警系统。该系统针对常规单一参数、单一手段溢流监测实时性低、可靠性差的问题,综合应用微流量、随钻压力(pressure while drilling,PWD)以及综合录井3类参数,通过多参数、多手段相互印证的方式提高溢流监测的实时性与可靠性。提出基于专家系统和改进的贝叶斯判别相融合的溢流等钻井事故判别方法:当缺少训练数据时,应用专家系统判别溢流等钻井事故;当训练数据充足时,应用专家系统和改进的贝叶斯判别相结合识别溢流等钻井事故。改进的贝叶斯判别模型对于因属性变量间不独立而引起的误判具有一定的抑制作用,能够提高判别准确度,且训练简单,应用灵活。通过两种算法的有机结合,优势互补,可以提高井控安全的智能化水平与现场适用性。测试实验结果表明,该系统能够实时、有效地监测溢流等钻井事故。