WebDefine cleat. cleat synonyms, cleat pronunciation, cleat translation, English dictionary definition of cleat. n. 1. A strip of wood or iron used to strengthen or support the surface to which it is attached. ... This study discusses the cleat patterns in Thar coal and preliminary study shows that the cleats in the Thar are regular reticulate sub ... WebJan 19, 2016 · Sec. 6.8.5 discusses this phenomenon in a five-well pilot in the Hedong Coal basin of China. Cleats are believed to form during coalification by shrinkage caused by moisture loss and by compactional folding of brittle coal beds. Cleat spacing ranges from approximately 2 cm in lignites to 0.08 cm in medium-volatile bituminous coals.
(PDF) Methane Gas Production from a Coal Bed Methane
WebFeb 1, 1998 · Cleats are natural opening-mode fractures in coal beds. They account for most of the permeability and much of the porosity of coalbed gas reservoirs and can … Web(cleats) in the coal, which reduces perme-ability and the ability of the gas to move through and out of the coal. Exploration costs for coal-bed methane are low, and the wells are cost effective to drill. Methane occurs in most coals, and the location of the Nation’s coal resources is already well known (fig. 1). Methane robert hepworth obituary
Origin and Spacing of Cleats in Coal Beds - ASME Digital …
WebApr 2, 2024 · The open fractures in the coal (called the cleats) can also contain free gas or can be saturated with water. The system is then called a “dual-porosity reservoir”, one characterized by a complex interaction of the coal matrix and cleat system coupled through the desorption process. The mechanism for gas flow in the coal involves three steps: Webfrequency of occurance, which seems to increase as one gets closer to the coal seam. Figure 3 is a steronet showing the general direction of these master-cleats. Also noticeable is the consistency in the direction of these features. This cleat data when properly used can be very helpful in predicting the flow quality of these coal seams. WebThe coal cleat pattern in the Kushiro coalfield, Japan, shows some analogy to isolated straight joints.───日本钏路煤田的煤层割理形态类似于孤立的直线节理. Nautical To secure or fast ( a rope, for example ) by winding on a cleat pin.───用 ( 如绳子 ) 系在楔或拴上以固 … robert hepner obituary