气源的

The outgas types and amount of different gas resource varied with the different geological conditions and evolution processes. There are four outgas models including the model in which inorganic gas directly overflows from mantle matter through lithospheric fracture,the model of heat flow piercement outgas,the model of volcano-magma outgas,and the model of carbonate rock outgas due to heat metamorphism.

对气藏成藏条件和深部壳幔结构的研究表明，松辽盆地存在多种类型无机"气源"，由于赋存的地质条件和演化过程不同，不同气源脱气的方式、脱出气体的类型、脱气量也大不相同，共有4种主要的模式：地幔物质沿超岩石圈断裂直接脱气模式；热流底辟体脱气模式；火山—岩浆成因模式；碳酸盐岩热变质成因模式。

The methods of hydrocarbon generation and carbon isotopic kinetics are studied in Sulige Gas Field, Yulin Gas Field and Shenmu Gas Field, which indicate that the gas is mainly from Carboniferous-Permian coaly stratum in the south or southwest of the three gas fields; the hydrocarbon generation of source rock is firstly originated from 150Ma or so in Dingbian and its south area, and is successive from south to north and from west to east; the migration directions of natural gas are regionally from southwest to northeast, and partially from bottom to top.

采用生烃动力学和碳同位素动力学的方法，通过对苏里格气田、榆林气田和神木气田的剖析，认为这3个气田的气源主要来自其南部或西南部的石炭-二叠系的煤系地层；烃源岩生烃始于150Ma左右，出现在定边及以南的气源岩区，并存在由南向北、由西向东推进的趋势；天然气区域运移方向是由西南向东北，局部运移方向是由下向上。

Overmature gas in carbonate rock, biogenic gas, gas generated with coal evolution and gas evolved crude oil generation The geologic conditions for their occurences are analysed briefly, furthermore some problems related to the gas potential and its exploration are discussed in this paper.

本文初步划分了我国油田气，煤成气，碳酸盐岩过成熟气及浅层生物气四类主要气源，并简要分析了其赋存的地质条件，进而对天然气资源及勘探方向，进行了一些探讨。

The paper adopts some methods such as gas composition, carbon isotope, systematical analyzing and testing of reservoir bitumen biomarker from high evolutional natural gas and quantitative calculation of mixed gas, illustrates that natural gas from the section Ⅱ of Jialingjiang formation is mainly attributed to sapropel type organic matter gas of Permian, comes from carbonatite hydrocarbon rocks Permian which most of them are overmature, its main gas source has nothing to do with carbonatite hydrocarbon rocks of Jialingjiang formation themselves, presents in geochemistry characteristics of oil type cracked gas.

摘要通过对川中－川南过渡带西部的磨溪－潼南地区嘉二段天然气组成、碳同位素组成、高演化天然气储层沥青生物标志化合物的系统分析测试和混合成因气的定量估算，阐明了该区嘉二段天然气主要属于二叠系腐泥型有机质成因气，来源于二叠系过成熟为主的碳酸盐岩烃源，主力气源与嘉陵江组自身的碳酸盐岩烃源无关，并具有油型裂解气的地球化学特征。

There are two different opinions on origin of gases in Ordovician reservoir of the central gas field of Ordos basin:(1) Gases are mainly sourced from Ordovician carbonate source-rock, it is a mixed gas in which sapropelic gas dominates;(2) Gases are mainly sourced from Carboniferous coal-bearing source-rock, it is a mixed gas in which humid gas dominates.

对鄂尔多斯盆地中部气田气源问题主要有两种不同看法：一种看法认为它是以奥陶系碳酸盐烃源岩来源为主、腐泥气为主的混合气；另一种看法认为它是上古生界煤系气或煤系气为主的混合气。

In combination with seismic reflection features and probable gas resource discussion, it is concluded that there probably exist two kinds of reservoir models in the X Block. In the areas where faults or collapse structures develop, the gas resource is probably composed of thermogenic gas, gas hydrate is characterized by multilayer distribution, while in the inactive areas the gas resource is probably composed of biogenic gas, and gas hydrate is characterized by monolayer, which mainly distributes in a narrow zone on the surface of BSR (bottom-simulating seismic reflector).

结合地震反射特征和可能的气源讨论初步认为，X区块天然气水合物的成藏模式主要有两种类型：在断裂或滑塌构造发育区，水合物的气源以热解成因气为主，水合物呈多层分布；在构造平缓地区，水合物的气源以生物成因气为主，水合物呈单层分布，且主要分布在似海底反射之上一个狭窄的范围内。

It was used to talculate the abnormal gas concentration of Qingshankou Formation's uncompacted mudstone in Sanzhao depression , Songliao Basin.

利用异常孔隙流体压力和异常温度建立了欠压实泥质源岩异常含气浓度的计算公式，并将其应用于松辽盆地三肇凹陷青山口组泥质源岩异常含气浓度的计算中，结果表明该区青山口组泥岩具有0.5～0.8m3／m3的异常含气浓度，对下伏扶、扬油层中的扩散相天然气具有强的封闭能力。

Lithologies are mostly sand and carbonate rocks, caps are mud rock, shale and magmatite. Entrap types are anticline, fault block rebuilt by breaking and the screened entrap diapered rock mass. The composition is CO_2, N_2, CH_4, C_2H_6 and He etc. It is magma air source body and its geologic fashions are intrusion and buried volcanic conduit. The relations between gas reservoirs and gas source bodies have three types: magma intrusion-breaking-communicated gas reservoir, magma intrusion-contacted CO_2 reservoir and buried volcanic conduit-contacted gas reservoir. The CO_2 migration in magma intrusion is consisted of fusing and crystallizing phases;it in volcanic conduit is consisted of near-surface effusion and crystallizing phases.The buoyancy of CO_2 in water far more than migration resistance in breaking or chink, CO_2 is easy float upward, the floating can results in differentiation of different density gases and concentration of sealed gas. The gas in sand reservoir firstly migrate into the higher porosity and coefficient of permeability sand, and along with the pressure going up it migrate into the lower. In magma intrusion-breaking-reservoir migration, CO_2 firstly migrate into watered breaking, began gravity differentiation and concentrate, the gas pressure time and again go up, CO_2 migrate into reservoir and concentrate under expansibility as the pressure reach upward a given extend. The CO_2 in reservoir experience four breaking modes: chemistry deposition, dissolution, diffusion and mechanic breaking, the pressure balance can be broken by faulting and the CO_2 will further migrate and form new reservoir.

济阳坳陷已发现的八里泊、阳25、平方王、平南、高青、花17 CO_2气藏主要储集层位有奥陶系、中生界、沙四段、沙三段、沙一段、馆陶组和明化镇组，储集层岩性以砂岩和碳酸盐岩为主，盖层以泥质岩、页岩和岩浆岩为主。；圈闭类型主要为受断裂改造的背斜、断块及刺穿岩体遮挡圈闭。；气体成分主要有CO_2、N_2、CH_4、C_2H_6、He等。；主要气源体为岩浆气源体，气源体的主要地质形式为侵入体和埋藏的火山通道。；气藏和气源体的空间关系有岩浆侵入体一断裂一气藏沟通型、岩浆侵入体-CO_2气储集层接触型和埋藏火山通道-气储集层接触型三种类型。；岩浆侵入体CO_2气运移分为熔融运移阶段和结晶运移阶段，火山通道中CO_2气运移分成近地表喷发阶段和结晶运移阶段。；断裂中，CO_2在水中的浮力远大于运移阻力，CO_2气容易上浮，CO_2在断裂中的易浮性导致不同密度气体的分异和走向上封闭的断裂气体相对富集。；气体在砂岩储集层运移聚集具有选择性，会优先进入孔隙度和渗透率较高的砂岩，随着压力增加，才会进入孔隙度和渗透率较低的砂岩；在岩浆气源体-断裂-储集层空间输导格架下，CO_2气在膨胀力的驱动下，首先进入含水的断裂并重力分异而聚集，气体压力会不断增高，当压力增至一定程度，CO_2气会向高孔隙度、渗透率的储集层运移并聚集。；在岩浆气源体-储集层接触空间输导格架下，CO_2气受膨胀力的驱动直接向储集层运移并聚集。；成藏的CO_2气会经历化学沉淀、溶解、扩散和机械破坏四种破坏方式，会受断裂切割而打破压力平衡，沿断裂进一步运移和聚集成藏。

Because of the special origin of biogenic gas, the evaluation of its source rocks is different from conventional hydrocarbon source rocks.

生物气成因的特殊性，使得对生物气源岩的评价也有异于常规烃源岩。

The outgas types and amount of different gas resource varied with the different geological conditions and evolution processes. There are four outgas models including the model in which inorganic gas directly overflows from mantle matter through lithospheric fracture,the model of heat flow piercement outgas,the model of volcano-magma outgas,and the model of carbonate rock outgas due to heat metamorphism.

对气藏成藏条件和深部壳幔结构的研究表明，松辽盆地存在多种类型无机&气源&，由于赋存的地质条件和演化过程不同，不同气源脱气的方式、脱出气体的类型、脱气量也大不相同，共有4种主要的模式：地幔物质沿超岩石圈断裂直接脱气模式；热流底辟体脱气模式；火山—岩浆成因模式；碳酸盐岩热变质成因模式。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。