The shallow gas wells have lower production than the deep wells, and have large water production.
浅层气井日产气量相对低于深部气井，日产水量较大，生产压差大；
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。
This method has proved to be very good in its application for shallow gas exploration in Jiyang Depression.
本方法已在济阳坳陷的浅层天然气勘探中应用。实践证明其效果良好。
Shallow gas in the area of the Hangzhou Bay mainly exists in the Holocene and upper Pleistocene of Quaternary.
杭州湾地区浅层天然气主要赋存于全新世和晚更新世地层中。
Through accurate description, this paper analyzes the distribution and recovery law of shallow gas reservoirs.
通过进行气藏精细描述研究，分析浅层气藏的分布及开采规律。
Therefore, we can not simply apply the exploration idea suitable for shallow gas reservoirs to deep reservoirs.
不能把浅层气藏的勘探思路简单搬到深层气藏的勘探上。
This paper introduced the slim hole drilling designation and operation in shallow gas bearing reservoirs of Chuanxi area.
介绍了川西地区浅层天然气小眼井钻井设计与施工情况。
The Jurassic shallow gas pool at Sandawan in Longquan Mountains is a secondary one with shallow depth, low pressure and low yields.
龙泉山三大湾侏罗系浅气藏是一个埋藏浅、压力低、产量小的次生气藏。
The Suining Formation gas pools will(serve as) the key target of extended assessment and risk exploration of the shallow gas in the study area.
该大型岩性气藏的发现，说明川西地区浅层气仍然具有大的勘探前景，遂宁组气藏将是浅层扩展评价勘探和风险勘探的重要目标。
It analysed the feasibility and the limitation of applying mining rig and water well rig to slim hole drilling in shallow gas bearing reservoirs.
分析了矿业钻机与水井钻机用于浅层天然气小眼钻井的可行性及局限性。
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。
The primal problem in low temperature and shallow gas reservoirs is to overcome the break, the flowing back, and the damage of the fracturing fluids.
对埋藏浅、储层温度低的油气藏进行压裂改造，需要解决压裂液低温破胶、快速返排和伤害问题。
Shallow gas formations are of the characteristics of shallow burial depth, low compaction degree, unconsolidated cementation, easy sand producing etc.
浅气层具有埋藏浅、压实程度低、胶结疏松、生产时容易出砂的特点。
The artificial control of pre-exhausting shallow gas is a necessary measure for preventing geological disasters before the construction of Hangzhou Metro.
人为控制性放气是杭州地铁工程施工前防治浅层气地质灾害的必要措施。
Equipped with suitable derrick and well controlled device in drilling a shallow gas well water drills proved to be able to reduce shallow gas well drilling cost.
通过某浅层气井的施工实例，阐述了水井钻机安装合适的钻塔底座和并控装置，可降低浅层气井建井成本。
Equipped with suitable Derrick and well controlled device in drilling a shallow gas well, water drills proved to be able to reduce shallow gas well drilling cost.
通过某浅层气井的施工实例，阐述了水井钻机安装合适的钻塔底座和并控装置，可降低浅层气井建井成本。
The key technology for prediction of prolific zone in the shallow gas reservoirs is bright spot identification of seismic response with "low frequency but strong amplitude";
针对浅层气藏天然气富集带预测的关键技术是“低频强振幅”地震响应亮点识别技术；
In this article, the authors research the the controlling factors of shallow gas reservoir by setting a example of Heidimiao reservoir of Punan area, northern Songliao Basin.
以松辽盆地北部葡南地区黑帝庙气藏为例，对浅层气藏的成藏主控因素进行了研究。
The clastic rock shallow gas layer has the characters of lower deep and infirmness compaction, so that the compaction extent of mud and the pressure of pore volume and liquid are low.
碎屑岩浅气层具有储层埋深浅，岩体弱压实的特征，故其间泥质的压实程度低，孔隙空间及所含流体承受的压力较小。
By correlating P-and s -wave seismic profiles, we found that the shallow gas horizons will bring up "bright spot" on the P-wave seismic profiles, and nothing appears on the s -wave profiles.
从纵横波剖面的对比来看，浅层气层在纵波剖面上表现为亮点，在转换横波剖面上表现正常。
The shallow gas in the coastal plain of Zhejiang Province mainly exists in the Holocene and Late Pleistocene of Quaternary, belonging to a methane type biogas according to its component analysis.
浙江沿海平原浅层天然气主要赋存于第四纪全新世和晚更新世地层中。气样组分分析表明，该区天然气属甲烷型生物成因气。
The key to produce this shallow gas is to use a set of negative suction technique besides that a series of measures for protecting the shallow gas-bearing formation must be adapted while drilling.
要把这类浅层气开采出来，除必须实施保护浅气层的钻井措施外，关键在于采用一套负压抽汲采气技术。
They link deep gas sources to shallow reservoirs, and are main pathways for the vertical migration of natural gas.
断裂勾通深部气源和浅部储集层，是天然气垂向运移的主要通道。
Burial depth control on the lead role of gas occurrence, most of the shallow is press-out, pour out, into a certain depth, the more performance is outstanding.
埋藏深度对瓦斯赋存起主导控制作用，浅部大多以压出、倾出为主，进入一定深度后，多表现为突出。
However, natural gas is relatively evenly distributed in shallow, mid-depth, deep and ultra-deep formations.
天然气资源在浅层、中深层、深层和超深层分布却相对比较均匀。
The first Wells were shallow and the gas was mixed with water, which would freeze in the winter, making distribution impossible.
最初的井都较浅，天然气和水混合在了一起。水在冬天会结冰，导致无法输送天然气。
With the shallow natural gas exploration becoming difficult at present, deep-seated natural gas exploration has become the hot issue.
随着浅层天然气资源勘探难度的增大，进行深层天然气勘探已成必然趋势。
A lot of shallow transitional gas pools actually resulted from anaerobic degradation.
我国许多所谓的浅层过渡气实际上是原油厌氧细菌降解作用的结果。
Non-mature gas and oil mean those whose byried depth is more shallow than the threshold depth of the sedementary organic matter which is transformed into the gas and oil.
未成熟油气是指那些埋藏深度浅于成熟门限深度的沉积有机质生成的油气。
The affecting factors of floating speed of slops particles with gas bubbles in shallow tank flotation wastewater treatment system are analyzed.
分析了浅池气浮净水系统中影响挟气污粒上浮速度的因素。
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