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Flow-after-flow tests for gas wells

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Proceedings Papers

Paper presented at the CIPC/SPE Gas Technology Symposium 2008 Joint Conference, June 16–19, 2008
Paper Number: SPE-114998-MS
... test reservoir permeability AOF mfaf test kPa equation SPE 114998 Modified Flow After Flow Test To Predict Deliverability of Gas Wells With Turbulence Sarah Kisko, SPE, Shu Ping (Sandy) Liao, SPE, and Louis Mattar, SPE, Fekete Associates Inc. Copyright 2008, Society of Petroleum Engineers...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197238-MS
... to the tightness of Gachsaran formation and high percent of reservoir water after opening the well, nitrogen lifting was used in all cases when well ceases to flow naturally. Short periods of natural gas flow were established only from three intervals out of eight. Flow was weak and unstable that increased...
Proceedings Papers

Paper presented at the SPE Middle East Oil & Gas Show and Conference, November 28–December 1, 2021
Paper Number: SPE-204905-MS
... time to run and set the DHSIT in the lock mandrel, and then the time for well testing to perform the three flow after flow rates before the DHSIT closed. Slickline would run the DHSIT with memory gauge and hang it in the lock mandrel. Well testing would conduct the three flow after flow...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 12–14, 2021
Paper Number: SPE-205711-MS
.... To derive AOF, traditional flow-after-flow test ( Rawlins and Schellhardt, 1936 ), theisochronal test (Cullender, 1955), themodified isochronal test ( Katzet al.,1959 ), and single point test have been developed. Flow-after-flow tests aremore favored in field operation as each gas production rate...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202445-MS
... the valve inlet and self-regulate to restrict the flow of unwanted fluids (gas and/or water) after breakthrough or the unwanted fluids manage to change the flow pattern/path when entering and leaving the device. The RCP type AICD restricts the flow rate of low viscosity fluids. When gas or water flows...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25796-MS
..., these kinds of wells have tried flow-after-flow test, isochronal test, and one-point method [813]. Figure 1 Sour gas reservoir distribution in the world 2 OTC-25796-MS Because of the hostile environment including high pressure, high temperature, high concentration of sour gas, and low permeability...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207300-MS
... tested gas control measures along the interval 12000-16880 ft from the start of the well production as the simulation suggests that the gas could rapidly breakthrough after this point. Restricting the flow through this interval reports evident benefits with the plateau being extended by more than 300 d...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206491-MS
... stages: Formation testing platform is conveyed downhole on drillpipe. After positioning and setting Dual Inlet Dual Packer system across the zone of interest, short initial flow performed, for accurate formation pressure measurement and mobility estimation. This followed by Slip Joint activation...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 12–15, 2021
Paper Number: SPE-206575-MS
... in water production according to the gas condensate studies (GCS). As a result, on 05.02.2020, the selected surfactant pumping to the annulus with a flow rate of 2 l / h was organized. After that, the wellhead pressure stabilized at the level of 18-19 kgf / cm2, however, the gas flow rate continued...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207713-MS
... or blockage tendency during the mud plugging test. The valve required very low differential pressure (<0, 1 bar) to initiate the flow even after long periods of mud settling (>12 hours). Pilot Selection The subsurface team reviewed the number of wells that are suitable for AICD technology pilot...
Proceedings Papers

Paper presented at the SPE Russian Petroleum Technology Conference, October 15–17, 2018
Paper Number: SPE-191731-18RPTC-MS
... /day was achieved which allowed to conduct initial gas dynamic testing with 65-75% of the design flow rate. For the first well the choke program was developed on the basis of available operational experience in offshore well development. After the well cleanout development is performed with four...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, October 8–10, 2012
Paper Number: SPE-159848-MS
... of the failed 1" standard gas-lift FCD after the flow test. The standard orifice valve was no longer hold seal at 100 psi after 1 day long flow test. After being dissembled, some picture was taken by 10 power of camera. Check seal shown to the left was totally worn so it was not able to hold the back check...
Proceedings Papers

Paper presented at the International Petroleum Technology Conference, November 14–16, 2016
Paper Number: IPTC-18952-MS
... test data and this new data, the well only measures the tubing flow, at this time, the casing valve to the test separator was closed and the flow diverted to GC. After an hour of flowing, the results show 880 BLPD with 81%WC and 1148 scf/bbl GOR. From this data, it is showing that oil rate and gas rate...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 12–15, 2018
Paper Number: SPE-193252-MS
... ) − S 1.151 ] Flow after the flow tests determine the deliverability of a well by measuring the bottom hole pressure and production rate at Pseudo-steady state condition at each flow period to determine the well IPR curve. The procedure to obtain the data is to fix a constant...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 11–14, 2019
Paper Number: SPE-197590-MS
... started. Towards the end of clean-up flow, the gas rate reached 19.0 MMscf/D. After the completion of the clean-up flow, isochronal tests and PLT runs were conducted to evaluate well and stage performances (the relative zonal contribution is summarized in Table 1 ). Figure 1 shows the results...
Proceedings Papers

Paper presented at the SPE EUROPEC/EAGE Annual Conference and Exhibition, June 14–17, 2010
Paper Number: SPE-130552-MS
... Isochronal Modified Isochronal Single-point Although, these techniques are aimed to evaluate the production capacity of wells, most of them (the Isochronal, Modified Isochronal and Single-point tests) were developed to reduce the flared/vented gas and to minimize well testing cost. The flow-after...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-31193-MS
... to a sand load of 140 kg over 10 years of production with 5 ppm. Flow performance tests were carried out with gas at 80 bar, water at 60°C as unwanted fluids after 20, 40, 60, 80, and 100% of sand load and 2 and 2.4 cP silicon oil were used as test fluids. Fig 9 . shows the performance curves for gas...
Proceedings Papers

Publisher: Society of Petroleum Engineers (SPE)
Paper presented at the Abu Dhabi International Petroleum Exhibition & Conference, November 15–18, 2021
Paper Number: SPE-207654-MS
.... Innovative practices and equipment modifications were built and applied to secure both environment and cost. In this method, the sound power is utilized after the unloading and testing to circulate the condensate from the tanks to the separator with a low-pressure pump then divert well flow to the division...
Proceedings Papers

Paper presented at the SPE Annual Technical Conference and Exhibition, September 22–26, 1985
Paper Number: SPE-14363-MS
... OF METHOD Determination of Adjusted Isochronal Values of C and n The absolute open flow potential of every producing gas well operating in the State of Texas is re- quired by the regulatory agency, the Texas Railroad Commission. Conventional back pressure (flow- after-flow) testing of gas wells is used...
Proceedings Papers

Paper presented at the Abu Dhabi International Petroleum Exhibition and Conference, November 10–13, 2014
Paper Number: SPE-171712-MS
... surfactant + water) treatmetns were performed on well Alpha-4 in December 2012 and February 2013. SONAR well tests were conducted before and after the foam treatments to analyze the impact on gas volumetric flow rates (well performance). Figure 7 Alpha-4 SONAR Pre-Foam Test – Dec 2012 Figure...

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