尖灭

The Es formation was divided into seven third order sequences based on the seismic, drilling and logging data, and plans deposition system plane distribution maps of different time were plotted by dominance phase principle. The lower Es4 is flood-overlake facies mainly; the upper Es4 is meandering stream and braided river delta deposition above the shore shallow lake background; in the Es3 period, the south mainly developed braided river, meandering stream delta, the northeast area main developed meandering stream delta, the middle area mainly developed semi-deep lakean d deep lake sediments. From lower Es3 to upper Es3, the delta scale gradually increased and the depositional area gradually moved to the east and the southeast; the Es2 period was dominated by shore-shallow lake sediments and widely developed braided river delta and delta deposits; the Es1 period was dominated by shore-shallow lake shoal deposits, and in the south developed meandering stream and braided river delta deposits.The lothological traps of the Shahejie group are mainly fluxoturbidite and stratum lateral pinch-out, and its formation and the distribution of the lothological trap were controlled mainly by the basin structure characteristic, palaeogeomorphology and tectonic activity and so on. It had a beneficial geological condition to develope sublacustrine slump turbidite fans in Jishan, Jiangjiadian and Wawu.

利用地震、钻井、测井等资料，将古近系沙河街组划分出7个三级层序，通过剖面沉积学分析，以优势相原则绘制不同时期各亚段沉积体系平面分布图：沙四下总体以洪水-漫湖沉积为特征，沙四上沉积时期是在滨浅湖背景之上发育了曲流河三角洲和辫状河三角洲沉积；沙三段沉积时期南部主要发育辫状河、曲流河三角洲，西北部地区发育曲流河三角洲，中部地区主要为深湖—半深湖沉积；由沙三下至沙三上，西北部三角洲规模逐渐增大，沉积范围逐渐向东、东南方向推进；沙二段沉积时期为滨浅湖沉积，在背景之上广泛发育了辫状河三角洲和三角洲沉积；沙一段以滨浅湖滩坝沉积为特征，南部发育了曲流河三角洲和辫状河三角洲沉积；沉积地层中的岩性圈闭以滑塌浊积岩岩性圈闭和地层侧向尖灭型岩性圈闭为主，其形成和分布主要受盆地结构、沉积古地貌和构造活动强度等因素控制，北部基山、南部江家店和瓦屋具有发育滑塌浊积扇的良好地质条件。

According to these mentioned above, it can be concluded that there are 4 types of accumulation model in west slope region, that is, sandstone up-dip trap, structure and structure—lithology trap, fault—lithology trap, sandstone lenticular body trap, and that oil-gas accumulation and distribution are mainly controlled by some factors that is trap growth, relationship of between trap and space orientation of oil-gas migration pathway, connection area of centripetal flow and centrifugal flow, oil-gas preservation condition and unconformability.

在上述基础上，总结出西斜坡区运聚成藏模式主要有砂岩上倾尖灭圈闭油气运聚成藏模式、构造及构造-岩性圈闭油气运聚成藏模式、断层-岩性圈闭油气运聚成藏模式、砂岩透镜体圈闭油气运聚成藏模式4 种模式。在上述基础上，总结出油气成藏与分布主要受圈闭发育、圈闭与油气运移路径空间位置关系、向心流与离心流交汇区、油气保存条件和不整合因素的控制。

So it is natural and reasonable to the pinching of strata around boreholes.

使在钻孔附近地层的尖灭处理更为自然与合理。

There are three basic lithologic semantic relations between adjacent boreholes, which are respectively corresponding, including and pinching-out relations.

相邻钻孔之间细节地层的岩性连接有对应、包含和尖灭3种，基于地层属性及其语义关系的地层连接关系推理有6种基本模式，设计了相应的地层连接推理算法。

Wraps the bottom is a ring, the jacketed wall to the upward contraction tube, the tube cavity cross section diameter is equal to or be smaller than inward wraps the thermos pot bottom diameter, the jacketed wall upward pinch-out, interacts the part in a set of bottom and the jacketed wall, digs out some inclined half circular slot, wraps on the bottom to open 2-4 reservation spiral nail hole.

套底为一个圆环，套壁为向内向上收缩的筒，筒腔断面直径等于或小于所套热水壶壶底直径，套壁向上尖灭，在套底与套壁交结的部分，挖出一些倾斜的半圆槽，套底上开2—4个预留螺钉孔。

The results of the field tests show that the technology has a good and soon result of plug removal for water injection wells and oil wells, and it is espectically suited to the treatment of the oil sandbody updip pinch out reservoirs which have bad physical property.

现场试验证明，该技术对改造油水井地层堵塞效果好，见效快，特别适合于物性极差的油砂体上倾尖灭的油层的解堵和改造。

Seismic response ; integrated energy spectrum ; thin-layer ; lenticular ; pinch out

地震响应；积分能谱；薄层；透镜体；尖灭

Connecting sand body migration systems may controls the forming of oil-gas reservoir due to bottom bed overlap. lithologic pinch out, and/or the fault barrier. The migration system consisting of unconfornfity surface, sand bodyunconformity surface, and/or unconformity surface-fault, may control the forming of the bedrock weathered crust type oil-gas reservoir. The migration system consists of fault, sand body-fault, and/or sand body-unconformity surface, may control formation of oil-gas reservoir due to fault block, anticline, structure-lithologic, and/or fault-lithology.

连通砂体输导系统可控制底层超覆、岩性尖灭、断层遮挡油气藏的形成；不整合面、砂体-不整合面、不整合面-断层组成的输导系统可控制基岩风化壳油气藏的形成；断层、砂体-断层、砂体-不整合面-断层组成的输导系统可控制断块、背斜、构造-岩性和断层-岩性油气藏的形成。

Based on these and followed by proper reservoir classification and characteristics analysis,this paper established the methods for reservoir description of subtle pool with complex fault blocks,by which the main trap within the belt could be divided into fault block trap,structural trap and subtle trap which includes sand lens trap,lithologic updip thinning out trap,structural-lithologic trap and fault lithologic trap. For self-confined fault controlling oil flow,its height of oil column can be estimated by utilizing R.R.

在此基础上，通过油藏的具体分类和特征分析，建立了复杂断块隐蔽油藏的储集层和油藏描述方法；将东营凹陷中央隆起带中的主要油气藏划分为断块圈闭、构造圈闭和隐蔽圈闭，其中隐蔽圈闭包括砂岩透镜体圈闭、岩性上倾尖灭圈闭、构造-岩性圈闭、断层-岩性圈闭四类；提出在控油断层自密封的情况下，油藏高度可采用R.R。

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。