... of sensitivity analysis and robustness of the technique demonstrated by comparison with results of numerical reservoir simulation. Finally, reservoir tank models were linked with the well inflow relationship to produce well by well production forecasts. The key difference of CSG wells, compared to conventional...

... to migrate should a well integrity failure occur in a CSG well. The scenarios should be reasonable; that is, they represent circumstances that could be possible based on the design, operation, and behaviour of typical CSG wells in Queensland. The models were extremely simple, representing a single cased...

... reservoir interburden rock chemical system solid issue CSG well brown foam stabilization treatment foam coal seam gas fluid return solid production chemical solution protective solution society of petroleum engineers Surat Basin Australia permeability Introduction Many coal seam gas...

... Abstract Coal seam gas (CSG) well operators typically follow an industry rule of thumb 0.5 ft/s liquid velocity to prevent the onset of gas carryover during CSG dewatering operations. However, there is very little experimental data to validate this rule of thumb with only a publication...

... in this paper, along with recent advances in RCD technology that may further improve the efficiency and viability of utilizing them in CSG wells. Specialized chemicals (foam / defoam system) that are customized for foam drilling applications and which are designed to minimize if not eliminate lasting...

... Abstract One of the greatest challenges with respect to coal seam gas (CSG) wells in Queensland, Australia is the many loss zones encountered during drilling and cementing operations. Typical directional wells in the area are up to 2000 m measured depth (MD) and 1200 m true vertical depth (TVD...

... Once a CSG well is completed the water needs to be removed from the seams to enable gas to produce. PCP pumps and surfactant (soap) introduction are the most common means of removing this water. PCP pumps have been used for years in traditional petroleum extraction. A PCP pump ( Figure 1...