... diagnostic plots that have been improved by incorporating important concepts such as MBT, pseudo-variables (for gas wells) and pressure-normalized rates. Each DCA model has been designed assuming specific flow regimes. Therefore, a proper identification of dominant flow regimes will help us to perform...

... is not effectively removed from the well, the near wellbore region will become saturated with fluid and reduce the well's productivity. This paper will propose a new completion strategy which has been incorporated into the completion of tight gas wells to address the problems associated with deliquification of long...

... Abstract In recent times, a continuous fiberglass rod pumping system has been designed for producing low volumes of fluid from gas wells that are loaded up with water. This system utilizes an efficient, low horsepower pumping unit, which operates on a ½ horsepower, solar powered DC electric...

... to the wellhead flowing pressure. This segment consists of fluid flow in vertical deviated wells. Abstract Gas Well Optimization implementations in the petroleum industry is taking on an important challenge as our industry moves into new frontier production areas such as deep water development and re...

... Abstract This work presents the practical application of the recently developed B-spline based deconvolution methodology to analyze variable-rate/variable pressure drop well performance data from gas wells. As deconvolution provides the corresponding constant rate pressure drawdown response...

... Abstract Production from low-pressure gas wells was improved by widespread/extensive installation of well site compression in the Waddell Ranch Project. The Project was implemented in three phases over a period of three years beginning in June 2000. A total of 63 wells have been tested...

... reservoir, the gas deliverability considering sulfur deposition in formation is calculated and evaluated. The results show that the decrease degree of gas deliverability is different and it depends on the physical parameters in the formation on which the gas well is located. Corrosion Inhibition...

...: Equivalent Radial Homogeneous Models Background Abstract This paper illustrates a practical systematic approach to determine the reservoir flow characteristics and reserves for both conventional and unconventional gas wells. Currently, there is an industry assortment of production analysis methods...

..., slugging flow and to decreased production from the well. Eventually, the build up of fluids may cause the well to die (i.e. cease production entirely), or to continue to produce at rates which are much lower than its capacity. 2 How is plunger lift used to help deliquify low-rate gas wells...

.... Conclusion Antiagglomerant and KI/AA combination products are commercially viable for replacing methanol in protecting producing gas wells against hydrates blockages. AA type inhibitors are applicable in scenarios where a short protection is required at temperatures below freezing. This paper...

... Abstract Theoretical study, reported in this paper, qualifies unique mechanisms of water coning in gas wells. Water coning in gas wells has been understood as a phenomenon similar to that in the oil wells. It is shown, however that both the water inflow mechanism and its impact on well's...

... decline curve analysis carter 7 drillstem/well testing gas well fitting equation original gas equation analytical solution productivity index spe 75532 fetkovich 2 dimensionless flow rate application fluid dynamics production forecasting information tdd 0 reserves evaluation flow...

... Abstract Dimensionless inflow performance relationships (IPRs) provide a method to model the sandface deliverability of gas wells when only data from a single drawdown or buildup test are available. This paper compares the predictions from 3 dimensionless IPRs (Mishra and Caudle 1 , Billiter...

... Abstract This paper presents simple and practical equations to estimate a priori the decline-exponent for decline-curve analysis of gas wells. The proposed equations are applicable for gas wells with closed boundaries and constant rock properties. Data required includes initial reservoir...

... and Wiggins 11 developed a dynamic plunger lift model for gas wells that included transient, single-phase gas flow in the tubing above the plunger and slug. The time lag for the tubing pressure to decrease above the slug at the beginning of plunger rise resulted in significantly lower plunger acceleration...

... Abstract The application of gels for the control of excessive water production in oil and gas wells has been a treatment alternative for several years. The success of these treatments; however, has been relatively low. The Talisman Energy Inc. (Talisman)- operated Sukunka, British Columbia...

... Abstract Matrix acidizing treatments are applied to gas wells to remove near-wellbore permeability impairment (formation damage). The acidizing process differs in gas wells compared with oil wells or water injection wells because of two-phase, gas-liquid flow during acid injection, and also...

... for isochronal test types provides more information about the formation and reliable deliverability forecasting. deliverability equation log-log plot formation property drillstem/well testing upstream oil & gas straight line permeability general case flow condition coefficient gas well...

... Abstract This paper documents attempts to automatically unload gas wells in the Western Sedimentary Basin at various depths and producing conditions. The results include production increases of 25%, with reduced operating costs. The criteria for application of this technology and a cost/benefit...

... Abstract Linear flow may be a very important flow regime in fractured gas wells. It is also important in some unfractured wells. This paper presents practical approach to analyze both pressure (well testing) and production rate (decline curve analysis) data which is influenced by linear flow...