tight gas

基本解釋

Tight gas wells are generally characterized by low porosity, low permeability and high water saturation.
致密氣井普遍具有低孔、低滲、高含水飽和度的特點。
Correlations of reservoir properties wtih sedimentary and diagenetic facies are of great importance to the exploration and development of tight gas-bearing formations.
四種成巖相組成了四種不同的儲層類型，儲層性質(zhì)的對比分析對識別致密氣層中的油氣產(chǎn)層具有重要意義。
For low-permeability and tight gas reservoir, major factors of causing damage are water retention effect, stress sensitivity, water sensitivity, drilling operation inadequacy.
水鎖效應(yīng)、應(yīng)力敏感、水敏性、鉆井施工作業(yè)不適當(dāng)是低滲致密氣層損害的主要因素。

These are gas-tight feedthroughs.
這些是封閉的的引線。
麻省理工公開課 - 固態(tài)化學(xué)導(dǎo)論課程節(jié)選

The Energy Information Administration (EIA) puts it at around 37tcm of recoverable reserves, two-thirds of which is shale gas and the rest tight gas and coal-bed methane.
ECONOMIST: Shale gas is giving a big boost to America’s economy
Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).
FORBES: The Fracking Solution Is A Good Cement Job
Fracking, of course, is the controversial method by which producers extract tight oil and gas — a process that uses a concoction of water, sand and chemicals to break those deposits free from the rocks where they rest a mile beneath the ground.
FORBES: California's Clash: Shale Oil or Green Energy