Cavern development is the main controlling factor of high productivity and large reserves amount, while fracture development improves connectivity of seam cavern system.

溶洞发育是较高产能和较大储量规模的主控因素，而裂缝发育扩大了缝洞系统的连通性。

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The reservoir pore of carbonate buried-hill reservoir is fracture and cavern mostly. The cavern is the primary reservoir space and fracture is the primary seepage channel.

碳酸盐岩潜山油藏储层孔隙主要为裂缝和溶洞，其中溶洞是主要的储集空间，裂缝是主要的渗流通道。

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Research shows that effectiveness of reservoir with cavern relates to porosity and the type of cavern, and reservoir with big cavern is more effective than with little one.

研究认为，孔洞型储层有效性与孔隙度及孔洞类型有关，且大孔孔洞型储层较小孔孔洞型储层有效。

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But Jim White made it his life's work to make sure the public would see and enjoy the cavern.

VOA: special.2009.12.07

A few years later, a settler named Abijah Long also found the entrance and went into the cavern.

VOA: special.2009.12.07

An elevator lowers you into the world of Carlsbad Cavern, the big cave at Carlsbad Caverns National Park.

VOA: special.2011.04.11

The purpose of the well is to determine the structural status of the cavern as well as the pressure of any gas that might be inside of it, he said, adding that the last mechanical integrity test performed on the cavern was done in late 2010.

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Famed more for its setting than its food, Alux is in a cavern full of stalactites.

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The walk took in the cliffs from the Devonian era, and the caves at Kents Cavern.

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