尖灭

The trap contains sand lentoid traps formed by sand bar and sand updipwedge-out traps.

发育的地层—岩性圈闭类型主要为砂质滩坝成因的砂岩透镜体岩性圈闭和砂岩上倾尖灭地层圈闭。

The trap contains sand lentoid traps formed by sand bar and sand updip wedge-out traps.

发育的地层—岩性圈闭类型主要为砂质滩坝成因的砂岩透镜体岩性圈闭和砂岩上倾尖灭地层圈闭。

According to the altitude of slack water deposit termination which has fine indicative significance, the water level of a paleoflood can be determined and the discharge of the paleoflood can be calculated using hydraulic model.

同时根据符合条件特征的平流沉积物尖灭点高程，分析确定古洪水位，进而采用逐步回水曲线模型推求古洪水流量。

The lithologic traps consist in unconformable stratigraphic trap and lithologic pinchout trap.

岩性圈闭有不整合地层圈闭和岩性尖灭圈闭。

The sandstone of reservoir spreads NNW-NW. The high thickness of sandstone develops in northwest and center of the study area, and it changes thinner to dactylitic pinchout in the direction of southeast.

砂岩总体走势北北西～北西向，砂岩厚度高值区发育在研究区西北部和中部，向东南方向砂岩有逐渐变薄直至指状尖灭的趋势。

The zone of abrupt slope have characters such as large slope, near provenance, complex palaeorelif and violent tectonic movement for the half graben like depression basin. It growed up 6 glutenite segments depending on fracture belt, such as torrential fanglomerate, braided stream delta, fan delta, offshore submarine fan, deep sea turbidity fan and fluxoturbidite fan.

引言渤海湾盆地为典型的箕状断陷盆地，其中的济阳坳陷为北断南超构造格局，北部陡坡带在下第三系沉积时期具有坡度陡、物源近及构造活动强烈、古地形复杂等特点，以断裂带为依托，各种成因的砂砾岩扇体极为发育，扇体前段尖灭于生油深洼陷之中，具有优越的成藏条件。

The sand lentoid traps developed in the middle and east of area, sand updipwedge-out traps developed in the east of research area.

砂岩透镜体岩性圈闭主要发育于研究区的中部和东部，砂岩上倾尖灭地层圈闭主要发育于研究区东部。

The sand lentoid traps developed in the middle and east of area, sand updip wedge-out traps developed in the east of research area.

砂岩透镜体岩性圈闭主要发育于研究区的中部和东部，砂岩上倾尖灭地层圈闭主要发育于研究区东部。

The sand bodies are made of lithical sandstone with different size. Delta place subfacies and delta front subfacies has been distinguish in the range of oil fields, they were sub...

在大宛齐油区识别出了三角洲平原和三角洲前缘两个亚相并从中进一步划分出了8种微相，查明了康村组岩性由不同粒级的岩屑砂岩的组成，分流河道砂体、水下分流河道砂体和河口砂坝砂体是油气的主要储集层，储层在纵向上多期叠置、在横向上频繁迁移、尖灭和连续性较差。

The CMP record was processed by conventional flow, and stacked and deviated sections were obtained, the response characters of pinchout sand bodies are analyzed, the seismic attributes such as root-mean-square amplitude and its variation are determined as sensitivety parameters of oil and gas reservoirs, a concept seismic-geologic model of sublacustrine fan reservoir is established, by which the multiplicity and limitation are reduced for prediction, a basis is provided for seismic interpretation.

对共炮点记录进行常规处理，得到叠加和偏移剖面。分析尖灭砂体的地震响应特征，确定了均方根振幅和振幅变化率等地震属性为含油气储层敏感参数。并建立了湖底扇储集体概念化地震地质模型，减少了预测的多解性和局限性，可为地震解释提供科学依据。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。