Biolithite loss zone is a kind of special reservoirs where rock structure is frailish and lot of pore spaces and gas exist, while severe circulation loss and well blowout and well kick occur.
The dissolved pore and intercrystal pore are the most important reservoir spaces. followed by breccias. and dissolved breccia pores. and the moldic and fenestral pores are less important.
The drilling results and drill stem test result prove that the prediction results of seismic nonelastic effect completely coincide with the actual gas-bearing Situation in the reservoir.
Dissolution is controlled by both sedimentation and tectonization, and the converted degree on reservoirs is closely related to sedimentary facies and the distance from unconformity interfaces.
It's a residual mountain(unaka) which were a set of thrust blocks under the erosion unconformity.It's reservoir pore space is a fracture-vug-pore system of Ordovician carbonate karst.
The minimum underbalance is independent of viscosity and compressibility and of reservoir fluids.It is a function of the formation porosity, permeability and radius of perforation channels.
The karst depression belongs to the accumulative area of surface water and subdrainage area of subsurface water, the karstification is relatively week, and reservoirs are undeveloped.
Nonsandstone reservoirs between salt beds of Qianjiang Formation in the Qianjiang Sag of the Jianghan Basin are mainly composed of dolomicrite,glauberite rock,mudstone and their peperite.
Using flow sediment laden formula set by Hanqiwei and overyear runoff,sediment data,the sediment retaining prediction of Manwan reservoir is carried out.
Lai Shenghua,Liu Wenbi,Li Defa,et al.Characters of pelite-fracture reservoir and factors controlling fracture development.Minerals and Rocks,1998,18(2):47-51.
The product is widely used for protection and partition in such fields as grassland,meadow,woods,fowlery,husbandry,sportground,virescence land,riverbanks,bridges and reservoirs.
Ecologists have known for quite some time that the white footed mouse is the primary reservoir, not just of Lyme disease but of pretty much every major tick born disease in the Northeast United States.
He reasoned that as the wheels spun, the mercury would flow to the bottom of each reservoir, leaving one side of the wheel perpetually heavier than the other.