The</span><span style="font-family:""> </span><span style="font-family:Verdana;">western part of north Tarim Uplift underwent multi-stage tectonic movement and multiple...The</span><span style="font-family:""> </span><span style="font-family:Verdana;">western part of north Tarim Uplift underwent multi-stage tectonic movement and multiple stages of magmatism.</span><span style="font-family:""> </span><span style="font-family:Verdana;">Igneous rocks are associated with carbonate and buried deep.</span><span style="font-family:""> </span><span style="font-family:Verdana;">The seismic response characteristics of igneous rocks are similar in many respects to the seismic response characteristics of karst, making the identification and prediction of igneous rocks more difficult.</span><span style="font-family:""> </span><span style="font-family:Verdana;">This study compares the seismic reflection characteristics of igneous rocks. Set up three types of igneous rock seismic facies model penetration type, fracture type and central type</span><span style="font-family:Verdana;">. </span><span style="font-family:Verdana;">And it concluded that a time-slice, coherence analysis, analysis of the seismic properties of the layers and the method of three-dimensional engraving to identify the igneous rocks. This method has been applied to the identification and prediction of carbonate rock buried </span><span style="font-family:Verdana;">and </span><span style="font-family:Verdana;">hill igneous rocks in the north Tarim basin YingMaiLi region and has achieved good results.展开更多
Prospectors usually recognize the event with strong amplitude in seismic sections as bright spots. However, such a simple and rough method can’t distinguish whether these bright spots are related to favorable gas lay...Prospectors usually recognize the event with strong amplitude in seismic sections as bright spots. However, such a simple and rough method can’t distinguish whether these bright spots are related to favorable gas layer or water layer directly. In this paper, for the high correlation between reservoir gascontent and amplitude anomaly in research area, based on rock physical analysis of the wells drilled, using forward modeling technique respectively simulates and analyzes the seismic amplitude of gas layer and water layer. Then, combining the simulation result with corresponding statistics amplitude obtains the numerical relationship between each layer amplitude. At last, using the display technique directly recognizes the bright spots of gas layer in seismic profile and gets rid of those false bright spots caused by water layer, which improved the robustness in the bright spots interpretation and provided reliable basis for reducing exploration risks. Moreover, applying the method to the target zone, we obtain huge success.展开更多
DHS(DongHe Sandstone) reservoir is one of the main reservoirs in Hadexun, Tarim basin. Based on reprocessed high-resolution seismic data, the forward model was investigated. Under the guidance of model combining with ...DHS(DongHe Sandstone) reservoir is one of the main reservoirs in Hadexun, Tarim basin. Based on reprocessed high-resolution seismic data, the forward model was investigated. Under the guidance of model combining with well data in the research area, the methodology of recognizing DHS pinch-out was discussed in detail. The result is helpful for the research of DHS pinch-out reservoirs in Tarim basin and for the exploration of this type of reservoir in China.展开更多
文摘The</span><span style="font-family:""> </span><span style="font-family:Verdana;">western part of north Tarim Uplift underwent multi-stage tectonic movement and multiple stages of magmatism.</span><span style="font-family:""> </span><span style="font-family:Verdana;">Igneous rocks are associated with carbonate and buried deep.</span><span style="font-family:""> </span><span style="font-family:Verdana;">The seismic response characteristics of igneous rocks are similar in many respects to the seismic response characteristics of karst, making the identification and prediction of igneous rocks more difficult.</span><span style="font-family:""> </span><span style="font-family:Verdana;">This study compares the seismic reflection characteristics of igneous rocks. Set up three types of igneous rock seismic facies model penetration type, fracture type and central type</span><span style="font-family:Verdana;">. </span><span style="font-family:Verdana;">And it concluded that a time-slice, coherence analysis, analysis of the seismic properties of the layers and the method of three-dimensional engraving to identify the igneous rocks. This method has been applied to the identification and prediction of carbonate rock buried </span><span style="font-family:Verdana;">and </span><span style="font-family:Verdana;">hill igneous rocks in the north Tarim basin YingMaiLi region and has achieved good results.
文摘Prospectors usually recognize the event with strong amplitude in seismic sections as bright spots. However, such a simple and rough method can’t distinguish whether these bright spots are related to favorable gas layer or water layer directly. In this paper, for the high correlation between reservoir gascontent and amplitude anomaly in research area, based on rock physical analysis of the wells drilled, using forward modeling technique respectively simulates and analyzes the seismic amplitude of gas layer and water layer. Then, combining the simulation result with corresponding statistics amplitude obtains the numerical relationship between each layer amplitude. At last, using the display technique directly recognizes the bright spots of gas layer in seismic profile and gets rid of those false bright spots caused by water layer, which improved the robustness in the bright spots interpretation and provided reliable basis for reducing exploration risks. Moreover, applying the method to the target zone, we obtain huge success.
文摘DHS(DongHe Sandstone) reservoir is one of the main reservoirs in Hadexun, Tarim basin. Based on reprocessed high-resolution seismic data, the forward model was investigated. Under the guidance of model combining with well data in the research area, the methodology of recognizing DHS pinch-out was discussed in detail. The result is helpful for the research of DHS pinch-out reservoirs in Tarim basin and for the exploration of this type of reservoir in China.
