济阳坳陷桩西地区沙二段埋深较大，应用残留厚度进行古地貌恢复存在较多问题。介绍了用压实法进行古地貌恢复的原理及方法。该方法分为视厚度校正、压实方程建立、单井压实厚度恢复、原始厚度图和古地貌图编制4个步骤。根据沙二段顶面构造图计算的真厚度校正系数最小可达0.83。压实结果表明压实率一般大于30%。结合视厚度校正、压实恢复结果和古水深，编制了沙二段基准面上升期和下降期的古地貌图，桩西地区沙二段古地貌中间高、东西两侧低。滩坝主要分布在孤北古隆起东西两侧，滩坝的发育明显受古隆起的控制。

This study applied the principle and methods of compaction restoration for reconstructing paleo-geomorphology of the Second Member of Shahejie Formation in Zhuangxi area of Jiyang Depression. The analyzing processes include four steps: (1) correcting of apparent thickness; (2) establishing of compaction equations;(3) restoring compaction of formations in each single drilling well; (4) composing maps of thickness of original layer and paleogeomorphology. As a result, the minimum value of correction coefficient for the real thickness was calculated as 0.83, based on structural map of the top of the Second Member of Shahejie Formation. The compaction rates are generally higher than 30%. Furthermore, the paleo-geomorphological maps of the Second Member of Shahejie Formation during uplift and subsidence sedimentary periods in Zhuangxi area were compiled. One highland in the middle and two sags in the eastern and the western sides of the Zhuangxi area were recognized from the maps. Beach bars occurred mainly along the two sides of Gubei paleo-uplift, suggesting the formation and development of beaches were clearly controlled by paleo-morphological uplift.

塔里木盆地库车坳陷发育古近系和新近系2套膏盐岩，盐下中生界已经落实万亿方天然气储量，是我国重要的天然气产区。库车坳陷盐下中生界构造型油气藏是油气勘探的重点，盐构造样式解析、盐构造变形机制、盐构造平衡恢复及变形期次分析是库车坳陷盐构造研究的难点。利用高精度三维地震拼接剖面、钻井和区域地质资料，选取库车坳陷西段和东段2条典型剖面，通过3DMove软件进行盐构造平衡恢复，分别恢复盐上层、盐下层和盐层的构造变形，复原构造变形前地震剖面。并针对复原过程中的具体问题，从盐构造恢复方法、变形特征、演化、变形机制等4个方面进行讨论。研究结果表明盐层的恢复需要满足2个基本假设：一是忽略由于挤压造成的岩石内部缩短量；二是近似认为弱变形区或未变形区盐层的厚度不变。库车坳陷发育2期盐构造：渐新世—中新世（构造稳定期）盐层上覆地层重力差异作用诱发早期盐构造，发育盐底辟、盐丘等盐构造；上新世—全新世（构造活动期）破坏和改造早期盐构造，发育挤压型盐构造。挤压作用、盐层塑性流动是盐构造形成的主要原因：盐上层发育盐滑脱逆冲断层，盐层塑性变形形成盐背斜、盐席、盐墙；盐下层发育叠瓦状逆冲断层，靠近造山带附近发育大型构造楔。沉积差异负载是诱发早期盐构造形成的主要因素，盐丘、盐底辟等早期盐构造主要发育于冲积扇前端。中生界滑脱层和基地古隆起控制盐下冲断构造的边界。膏盐层的厚度、分布范围控制着盐下逆冲推覆构造发育的数量和规模，库车坳陷西部仍然是油气勘探的重点。中生界向古隆起超覆沉积带，有利于地层岩性油气藏的发育和保存，是重要的油气勘探领域。

Kuqa Depression has developed two sets of Palaeogene and Neogene paste salt rocks， with trillion cubic meters of natural gas reserves in pre-salt Mesozoic， which is an important natural gas production area in China. The structural oil and gas reservoir of Lower Mesozoic in Kuqa Depression is the focus of oil and gas exploration. The analysis of salt structure style， salt structure deformation mechanism， salt structure balance recovery and deformation period analysis are the difficulties of salt structure research in Kuqa Depression. In this paper， using high-precision three-dimensional seismic splicing profile， drilling and regional geological data， two typical sections of the western and eastern sections of the Kuqa Depression are selected. The structural balance recovery is carried out by 3DMove software， and the structural deformation of the upper salt layer， the lower salt layer and the salt layer are restored respectively. The seismic profile before structural deformation is restored. In view of the specific problems in the recovery process， the salt structure recovery method， salt structure deformation characteristics， salt structure evolution， and salt structure deformation mechanism are discussed. The results show that the recovery of the salt layer needs to meet two basic assumptions： One is to ignore the amount of internal rock shortening caused by extrusion； the other is that the thickness of salt layer in the weakly deformed or undeformed area is approximately constant. Kuqa Depression developed two salt structures： Oligocene-Miocene （tectonic stable period） on the salt layer formation gravity difference induced early salt structure， developed salt dioper， salt mound structure. Oligocene to Miocene （tectonic stable period） overlying strata gravity difference induced the early salt structure， salt diapir， salt dome and other structures， Pliocene to Holocene （tectonic active period） destroyed and reformed the early salt structure， the development of extrusion salt structure. Extrusion action and plastic flow of salt layer are the main reasons for the formation of salt structure. The salt slip and unthrust fault develops in the upper salt layer， and the plastic deformation of the salt layer forms the salt anticline， salt mat and salt wall to develop in the lower salt layer， and the large structural wedge develops near the orogenic belt. Deposition differential load is the main factor inducing the formation of the early salt structure. The early salt structure such as salt mound and salt diopia mainly develops at the front end of the alluvial fan. The boundary of Mesozoic and base ancient uplift. The thickness and distribution range of the paste salt layer control the quantity and scale of the thrust cover structure development under the salt， and the west of Kuqa Depression is still the focus of oil and gas exploration. The overlying sedimentary zone from the Mesozoic boundary is conducive to the development and preservation of the formation of lithological oil and gas deposits， and it is an important field of oil and gas exploration.

库车再生前陆逆冲带自北而南分为以下5个构造带:①北部边缘冲断──隐伏构造楔;②斯的克背斜带;③北部线性背斜带;④拜城背驮凹陷;⑤丘里塔格前缘带.全体形成前锋向南的冲断变形楔.各构造带中发耷多种型式的断坪/断坡台阶状逆断层相关褶皱:断层转折褶皱、断层传播褶皱、滑脱褶皱、断层传播──滑脱混生褶皱、双重逆冲构造.在不同构造带发育不同时代的生长地层,指示了各构造带不同的构造变形年代.斯的克背斜带变形时期最早,始于中新世(24.5Ma),北部线性为形始于中新世中期(16.9Ma),拜城凹陷的大宛其背变形始于上新世中期(3.9Ma),丘里塔格前锋带的亚肯背斜变形始于更新世早期(1.8Ma).可见构造变形自北向南自中新世至第四纪逐渐变新.这一道冲带是印-藏板块陆-陆碰撞远距离构造效应的内陆变形产物.

Kuqa rejuvenation foreland thrust belt is devided into five structural zones from north to south as follows: 1.Northmargin thrusting cyptowedging zone,2.Stike anticline zone,3.North linear anticline zone,4.Baichen pigyback depression,5.Qiulitag frontier zone.They composed a southward thrust wedge which is about 50 km width and more than 200 km long.There are varied structural styles in the structural zones,i.e.fault bend fold,fault propagation fold,detachment fold,hybrid fault propagation-detachment fold and duplex thrust structure.There are different geological ages of growth strata in antichne limbs of different structural zones,showing the different emplacement ages of the structural zones.The Stike anticline zone was formed since Miocene (24.5Ma).The North linear anticline zone was since middle Miocene (16.9Ma).The Dawanqi anticline in Baichen depression was since late Pliocene (3.9Ma),and Yaken anticline in Qiulitak frontier zone was since early Pleistocene (1.8Ma).Therefore the deformation ages were younging southward from Miocene to Quaternary.The Kuqa rejuvenation foreland thrust belt is resulted from the remote tectonic effect in continent interior by the continent to continent collision of Indian toTibetian continent.

塔里木盆地库车坳陷克拉苏构造带克探1井在白垩系亚格列木组下段砂砾岩获得重大突破，实现了“克拉之下找克拉”的构想，对白垩系深层勘探具有重要意义。通过对克探1井成藏条件、储层特征、构造模型的深入研究，明确了克拉苏构造带侏罗系—三叠系供烃、白垩系亚格列木组裂缝型砂砾岩成储、上覆白垩系舒善河组泥岩成盖的生储盖组合，并建立了“下生上储、垂向输导、立体成藏”新模式。克探1井的成功钻探，证实了克拉苏构造带白垩系巴什基奇克组之下仍具备优越的储盖组合，并且越向深层靠近烃源岩，成藏条件越有利。同时亚格列木组断背斜圈闭成排成带，展示出巨大的勘探潜力，可形成新的天然气战略接替区。

A major breakthrough has been obtained in the glutenite reservoir in the lower member of the Cretaceous Yagelem Formation in Well Ketan 1 located in Kela 2 trap of Kelasu Structural Belt in Tarim Basin, realizing the idea of “discovering another Kela gas field below Kela Gas Field”, which is of great significance to the exploration of the deep Cretaceous. The in-depth study of hydrocarbon accumulation conditions, reservoir physical properties and structural model in Well Ketan 1 is conducted, which supports to identify the hydrocarbon accumulation assemblage of “hydrocarbon supply by source rock in the Jurassic-Triassic, fractured type sandstone reservoir in Yagelem Formation,and mudstone cap rock in Shushanhe Formation” and establish a new hydrocarbon accumulation pattern of “lower generation and upper storage,vertical transport and stereoscopic accumulation” in Kelasu Structural Belt. The successful drilling of Well Ketan1 confirms that there is superior reservoir-cap rock assemblage below the Cretaceous Bashijiqik Formation in Kelasu Structural Belt, and the hydrocarbon accumulation conditions are more favorable when approaching to the deep source rock. In addition, the fault-anticline traps in Yagelem Formation are developed in rows and belts, which show great resource potential and can form a new strategic replacement area for gas exploration.