It is believed by studying distribution of hydraulic head in the Permian and Triassic that hydrodynamic fields are present mainly as compaction flow, whereas in some high positions of structures or fractures around northwest margin of Junggar basin the fields are developed and present as gravity flow or meteoric ground water flow.
② Migration section is demarcate stratum,using to t0 =2 H/vα directly not have to correction, Whether are level stratum, construction highness and lowness or dip stratum position;
2、 The traps are mainly anticline traps, controlled by structure . The control action of faults to traps made the full anticline traps transformed fault traps .
It has the following production mechanism: the oxidization reaction between the oxygen (21%) in the air and resin and asphaltane present in the oil produces the flue gas (85% N2 and 15% CO2) which forms the flue gas cap on the structural high due to the gravity differentiation.
Well BT 36-1-1 is a 4000 m exploration well located on the top of BT sag, formation is very complicated. Drilling fluid design and field maintenance in different interval is introduced.
②it can directly use t 0=2H/V a to calibrate horizon on migration section and needn't correct for horizontal layer,crest or low point of structure and dipping bed;
2偏移剖面标定层位 ,无论是在水平地层、构造高点、构造低点还是倾斜地层部位 ,都无须校正 ,可直接用 t0 =2 H/ Va 进行标定 ;
Layered gabbros from the Kap Edvard Holm Complex, East Greenland, show no significant variation of temperature with structural height in the intrusion, while those of Skaergaard give temperatures which do not have a consistent variation with height.
As a result of the height control process, the deviation of structural height has been maintained within ±3?μm range for the UV-lithography-processed structures, and ±10?μm for the DXL-processed structures.
In this paper, three areas are choosed for the directional filtering count. According to its result, the structural analysis is done, the buried structures and faults are predicted and the advantageous drilling positions are analysed. Compared with gas wells and checked by drilling, the high and axial line of the filtering structure and the stacked position of two groups of positive structures are fractured and beneficial to the oil and gas accumulation. The research shows that by use of the directional fil...
High amplitude is the most important factor for identifying bright spot.Other bright spot features shown in ideal condition may not occur in actual condition.There is no essential difference between the bright spot in conventional seismic section and that in the seismic section obtained with special processing,therefore the bright spot in conven- tional section can also be the reference or basis for locating exploratory well.A combined application of bright spot and seismic high in a main reservoir can resu...