The composition of clay minerals is the main cause generating low-resistivity gas zone.
粘土矿物成份是造成气层电阻率低的主要原因。
Long cementing section and low well temperature are main features of well-cementing of shallow gas zone.
水泥封固段长、井温低，是浅层气固井的主要特点。
The sedimentary facies and the sedimentary cycle control low resistivity oil & gas zone on sedimentation .
在沉积上受沉积相、沉积旋回的控制；
Steam zone or gas zone identification with elastic waves is the interest of the poroelasticity application.
利用声波（或地震波）进行地下蒸汽和含气识别是孔隙弹性波动理论研究的应用方向之一。
Different basin has different depth for main oil generating zone, so for main gas generating zone (dry gas zone).
不同盆地有不同深度的生油主带，因而也有不同深度范围生气主带(干气带)。
The absorber could be divide into three major parts as absorber reaction tank, absorber spray zone and clean gas zone.
三大主要部分：吸收塔反应箱、吸收塔喷淋区和除雾区。
Therefore, efficient gas suction is technically determined by seeking fracture aisles for gas movement and gas zone of enrichment.
因此，寻找瓦斯运移的裂隙通道和瓦斯富集区，实施有效的瓦斯抽放工程是实现高效瓦斯抽放的技术关键。
It has proved that this novel system is of good effect for shallow gas zone in well-cementing and gas breakthrough has been effectively controlled.
现场初步试验证明，该套水泥浆体系对于浅层气固井具有较好的效果，有效地控制了气窜现象的发生。
Thispaper proposes the concept of background value and cut off value, a merthodfor indicating oil-gas zone by formation cementation exponent is detailed.
本文提出的地层胶结指数法，引入了背景值和下限值概念，用它指示油气层，具有更高的分辨率和直观性。
Using the gas zone seismic reflection character incorporated with drilled Wells to predict its lateral distribution, we have obtained better predicting effects.
利用气层地震反射特征结合已知钻井进行气层横向预测，取得了较好的实际效果。
The method for recognizing gas zone with PND logging data is introduced, which is to overlap the counting rates of a near detector and a far one to recognize gas zone based on certain scale.
介绍了利用PND测井资料进行气层识别的方法，即利用近探测器计数率和远探测器计数率以一定比例进行重叠的方法识别气层。
Submarine temperature, pressure, gas compositions, geothermal gradient and syngenetic water salinity control the depth of hydrate zone basement.
海底温度和压力、地热梯度、气体成分、同生水盐度等控制着水合物稳定带基底的深度和厚度。
Strong reflections from seismic profiles indicate a discontinuity at the base of the gas hydrate zone.
来自地震剖面的强烈反映表明在气体水合物区域的基础之上存在不均匀受力的情况。
The main factors influencing the gas preservation condition includes the fault amplitude, fault fragmented intervals, fault surface dip, and the position of fracture cavity system in the faulted zone.
大断裂影响缝洞系统保存条件的主要因素包括：大断裂断距、断层上消失层位、断面倾角、盖层厚度以及缝洞系统所处断裂带位置等。
The leakage of natural gas pipeline will result in a certain hazardous zone.
天然气管道发生气体泄漏将造成一个危险地带。
The result is that this area was a structurally active zone. Gases in this area were mainly organic origin with occasional invasion of inorganic gas.
结果表明，该区为构造活动区，区内的天然气主要为有机成因，偶有无机气混入；
We entered the zone many times with no protective suits only goggles and gas masks.
很多次我们进入试验区域的时候，除了护目镜和防毒面具，什么保护装备都没有。
Therefore, the recognition to gas beneficial zone of this region shows extraordinarily important.
因此，对该区天然气有利区带的认识显得非常重要。
Identifying the basic properties of mining fissure elliptic paraboloid zone and gas delivery law governing goaf represents an effective measure to control gas.
研究采动裂隙椭抛带的基本性质及其采空区瓦斯运移的规律，可以采取有效措施进行瓦斯治理。
If a well is drilled into such a zone to extract the natural gas, it can also reduce the pressure within the overlying gas hydrate layer.
如果将气井钻探到相应地带，即可开采天然气，此外还可以降低相应天然气水合物地层中的压力。
The leakage of the natural gas pipelines resulted in a certain hazardous zone.
天然气管道泄漏导致了某个危险地带。
Moreover, the gas hydrate layer on optimal-scale section shows a high scale zone of paralleling bottom in the low scale background.
在最佳尺度剖面上，水合物层表现为低尺度背景中的近似平行于海底的高尺度带。
Perfo Frac is a new technique which combines perforation with high energy gas fracturing to improve near wellbore zone.
复合射孔是射孔和高能气体压裂相结合对近井地层进行改造的一项新技术。
Cooling gas cutting is one of the important branches of green cutting technology, and the precondition of research and application of this technology is to supply cold gas to the cutting zone.
低温冷风切削是绿色切削加工技术中的一个重要分支，而向切削区供给低温冷风是研究和应用该项技术的前提。
The ample and essential conditions of seam gas formation are the existence and development degree of the basin, system and zone of seam gas.
煤层气盆地、煤层气系统、煤层气区带的存在及发育程度是煤层气藏形成的充分与必要条件。
The fire and explosion hazard in liquefied petroleum gas storage tank zone were evaluated quantitatively by the fire and explosion hazard index method.
采用火灾爆炸危险指数评价法，对液化石油气储罐区火灾爆炸事故的危险性进行定量安全评价。
The non-oxidizing zone is consisted of entry sealed room, waste gas preheating zone, direct heating zone, and furnace nozzle and flue gas exhausting system.
无氧化段由入口密封室，废气预热区，直接加热区，炉喉，废气排放系统组成。
The result is that press equilibrium zone is formed under the processes, where oil and gas can be accumulated.
沉积水与渗入水作用的结果产生一个压力平衡带，油气就聚集于这个压力平衡带上。
The result is that press equilibrium zone is formed under the processes, where oil and gas can be accumulated.
沉积水与渗入水作用的结果产生一个压力平衡带，油气就聚集于这个压力平衡带上。
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