... subdiscipline correlation hydraulic fracture proportion friction angle geologist fracture china government fracture activation angle shear fracture seam reservoir geomechanics fracture inclination society petroleum engineer effect cohesion complexity expansion fracture Introduction...

...Numerical methods Abstract In this paper, a fracture mechanics model that deals with fracture growth in layered low-permeability rocks is presented and applied to hydraulic fracturing stimulation of coal seam gas reservoirs. The model uses the conventional pseudo-3D treatment by which...

... time and remove the requirement for a clean out run. A whipstock operation is used to kick off from the 7″ casing and the 6 1/8″ production hole is directionally drilled in the target seam. The production hole is then lined with a 3 ½″ slotted fiberglass liner. Figure 2 illustrates a tri-lateral HASH...

... Australian exploration for coal seam gas commenced in the 1980s. The commercial production of CSG started in 1996 in the Bowen Basin from the Permian Coal Measures in Central Queensland. In the last decade CSG production has increased rapidly, peaking at 1,634 wells drilled in 2013-2014...

... field is located in the Bowen Basin in South East Queensland and covers an area of approximately 1600 km 2 . It has been in production since 1994, from the 6 main coal seams of the Bandanna Formation. Presently, about 150 wells are on-stream feeding the domestic gas market. Further development...

... Abstract Reservoir studies indicated that horizontal wells drilled in seam and intersecting vertical production wells were the optimal design to produce coal seam gas from the Narrabri CSG Project. An aggressive campaign of production pilots was drilled in 2009 and early 2010 to prove...

... Abstract Spurred by the commercial success of coalbed methane activity in USA, India initiated evaluating its coal bearing basins for their coalbed methane potential in 1992. In a short span of five years it tested and flowed coalbed methane from one of the coal seams of Barakar Formation...

... Abstract Three propped hydraulic fractures, placed in coal seams from vertical wells, were recently mapped as the coal mine workings passed through the site of the wells. The fractures were propped with sand and, in each case, the geometry of the propped fracture was mapped during mining...

... Abstract Permeability anisotropy in a coal seam in the Bowen Basin has been measured by a multiple well interference test. The degree and orientation of the anisotropy was apparently influenced by coal structural features on various scales. Simulations of the field observations using a two...

... An integrated program of characterisation, stimulation, and post-stimulation trial production has been completed in three coal seams intersected by two HQ-size (96 mm diameter) boreholes located adjacent to Appin Colliery in NSW. Data on stress, seam permeability and pressure, formation mechanical properties...

... to base an assessment of a well's potential production performance. To minimise test time and properly isolate the different seams, resettable slimhole packer systems have been developed for different sized holes. This paper will discuss (1) the early testing practices, such as the slug testing approach...

... seditnents throughout the Permian and Triassic periods. The basin contains gentle folding and faulting, along mostly northerly axes. Tertiary and Jurassic dykes and sills have intruded some areas and cindered some coal seams. Overall dips are generally less than 5.° The Narrabeen Group, around Munmorah...