In the process of oil field exploitation, radioactive isotope tracer water injection profile logging is a main method to determine the water-intake capacity of the target intervals. For those general water injection w...In the process of oil field exploitation, radioactive isotope tracer water injection profile logging is a main method to determine the water-intake capacity of the target intervals. For those general water injection wells, whose perforated intervals are beyond the tubing shoe, the sinking speed of isotope grains is related to the density and salinity of the injection water and the tubing dimension. We studied the motion of the isotope grains in the water injection wells by both theoretical calculation and field experiment. The result shows that if the water injection quantity is over 20 m＆3/d, and the density of the isotope grains, whose diameter is 100-600 μm, is 1.06 g/cm^3, then the logging technique for this kind of water injection wells will be appropriate. Whether water injection profile logging is successful in the well, whose perforated intervals are beyond the tubing shoe, depends on the sinking speed of the tracer grains.展开更多
LWD（logging while drilling） data has been used to explore complex subtle reservoirs by realtime visual interpretation and geo-steering.The method comprises of computer communication,well log data processing,formatio...LWD（logging while drilling） data has been used to explore complex subtle reservoirs by realtime visual interpretation and geo-steering.The method comprises of computer communication,well log data processing,formation recognition,reservoir modeling and model updating in real time.We studied the key technologies related to real-time LWD data visual interpretation and geo-steering and developed computer software with Chinese intellectual property rights covering the following important aspects： 1） real-time computer communication of well site LWD data;2） visualization of geological model and borehole information;3） real-time interpretation of LWD data;4） real-time geological model updating and geo-steering technology.We use field application examples to demonstrate the feasibility and validity of the proposed technologies.展开更多
钻井液气体同位素录井（MOIL）是一门新兴的录井技术。国内传统的同位素分析通常为离线分析，时间成本和资金成本较高；而中法渤海地质服务公司在同位素录井服务中使用的Geoisotope在线同位素录井仪虽然实现了同位素数据的在线测量，但...钻井液气体同位素录井（MOIL）是一门新兴的录井技术。国内传统的同位素分析通常为离线分析，时间成本和资金成本较高；而中法渤海地质服务公司在同位素录井服务中使用的Geoisotope在线同位素录井仪虽然实现了同位素数据的在线测量，但仅能提供甲烷的同位素数据，并且尺寸较大，数据易受外界因素影响。英国CSS公司研制的Isologger钻井液同位素录井仪，采用了稳定同位素比率质谱仪（Isotope—ratio mass spectrometry，简称“IRMS”），该设备具有体积小、测量精度高、受外界影响较小的特点；合理地引入了气相色谱分离单元，使得Isologger能够通过在线分析得出C1-C5的同位素数据，丰富了采集的同位素数据信息。该仪器以多组分的同位素数据为基础，可在现场进行井下油气层分析、烃类成熟度分析等工作，极大地提高了录井工作的指导地位。同位素录井在深海、非常规油气层、高温高压含硫地层等区域有着很好的应用前景。展开更多
文摘In the process of oil field exploitation, radioactive isotope tracer water injection profile logging is a main method to determine the water-intake capacity of the target intervals. For those general water injection wells, whose perforated intervals are beyond the tubing shoe, the sinking speed of isotope grains is related to the density and salinity of the injection water and the tubing dimension. We studied the motion of the isotope grains in the water injection wells by both theoretical calculation and field experiment. The result shows that if the water injection quantity is over 20 m＆3/d, and the density of the isotope grains, whose diameter is 100-600 μm, is 1.06 g/cm^3, then the logging technique for this kind of water injection wells will be appropriate. Whether water injection profile logging is successful in the well, whose perforated intervals are beyond the tubing shoe, depends on the sinking speed of the tracer grains.
基金funded by several Co. of CNPC and SINOPECChina National Science and Technology Major Projects of Oil & Gas (2011ZX05009-003)"863" Projects (2006AA060105)
文摘LWD（logging while drilling） data has been used to explore complex subtle reservoirs by realtime visual interpretation and geo-steering.The method comprises of computer communication,well log data processing,formation recognition,reservoir modeling and model updating in real time.We studied the key technologies related to real-time LWD data visual interpretation and geo-steering and developed computer software with Chinese intellectual property rights covering the following important aspects： 1） real-time computer communication of well site LWD data;2） visualization of geological model and borehole information;3） real-time interpretation of LWD data;4） real-time geological model updating and geo-steering technology.We use field application examples to demonstrate the feasibility and validity of the proposed technologies.
文摘钻井液气体同位素录井（MOIL）是一门新兴的录井技术。国内传统的同位素分析通常为离线分析，时间成本和资金成本较高；而中法渤海地质服务公司在同位素录井服务中使用的Geoisotope在线同位素录井仪虽然实现了同位素数据的在线测量，但仅能提供甲烷的同位素数据，并且尺寸较大，数据易受外界因素影响。英国CSS公司研制的Isologger钻井液同位素录井仪，采用了稳定同位素比率质谱仪（Isotope—ratio mass spectrometry，简称“IRMS”），该设备具有体积小、测量精度高、受外界影响较小的特点；合理地引入了气相色谱分离单元，使得Isologger能够通过在线分析得出C1-C5的同位素数据，丰富了采集的同位素数据信息。该仪器以多组分的同位素数据为基础，可在现场进行井下油气层分析、烃类成熟度分析等工作，极大地提高了录井工作的指导地位。同位素录井在深海、非常规油气层、高温高压含硫地层等区域有着很好的应用前景。
