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Keywords: straight line
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Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-195152-MS
..., which determines that a plot of the rate-normalized pressure drop vs the pseudo-time produces a straight line with the slope of such line yielding the OGIP. The use of the pseudo time concept calls for the estimate of gas properties at the prevailing reservoir pressure which in turn is a function of the...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 18–21, 2019
Paper Number: SPE-194699-MS
... fluid equation gas oil ratio composition mole fraction straight line predictor reservoir fluid composition fraction molecular weight The cause of the observed fluid property variations is believed to be a complex filling history in combination with biodegradation. The large lateral...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 10–13, 2013
Paper Number: SPE-164427-MS
... gas material balance equation is the simple straight line plot of p/Z versus cumulative gas production (Gp) which can be extrapolated to zero p/Z to obtain G. The method was developed for a "volumetric" gas reservoir. It assumes a constant pore volume of gas and accounts for the energy of gas...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, September 25–28, 2011
Paper Number: SPE-139696-MS
... found in West Africa on the continental shelf. This is the oil province from which examples will be presented later in this paper. Lo et al (1990) pointed out that plotting ln(WOR) is more convenient than the "X" referred to above. They showed using a simulator that the straight line behaviour of...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, September 25–28, 2011
Paper Number: SPE-141085-MS
...) - - 0.85 0.70 - - Fig. 16 Plot of [m(pi) − m(pwf)]/ q g vs t ca * showing with and without adsorbed gas BDF with slope m BDF used to calculate OGIP, Well 314. Fig. 12 Square root of time Plot to determine end of transient time and slope of straight line exhibited...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 15–18, 2009
Paper Number: SPE-120103-MS
... pressure derivative log-log plot 1 horizontal well reservoir Upstream Oil & Gas reservoir pressure flow regime omega 0 drillstem/well testing permeability fractured reservoir semi-log plot fracture system straight line log-log plot SPE 120103 Pressure Behavior of Horizontal Wells in...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105025-MS
.... They further argued that non-Darcy effects cause an increase in the slope of the linear flow analysis straight line resulting in low estimate of fracture half-length. Artificial Intelligence Upstream Oil & Gas compressibility Modeling & Simulation drillstem/well testing fracture...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 11–14, 2007
Paper Number: SPE-105046-MS
... derivative data to determine the fracture and reservovir parameters. These plots reveal the presence of straight lines corresponding to linear and pseuso-radial flow regimes; while the the boundary flow effect is detected by an exponential behavior. A 0.65 slope straight line describing the transition period...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-93419-MS
...-back Pump-in/shut-in conductivity soliman geometry formation permeability hydraulic fracturing fracture straight line drillstem testing permeability example 3 intercept determination after-closure analysis initial reservoir pressure upstream oil & gas spe 93419...
Proceedings Papers

Paper presented at the SPE Middle East Oil and Gas Show and Conference, March 12–15, 2005
Paper Number: SPE-93560-MS
... permeability short-term pressure transient testing cct straight line SPE 93560 Review and Application of Short-Term Pressure Transient Testing of Wells M.Y. Soliman, SPE, M. Azari, SPE, and J. Ansah, SPE, Halliburton, and C.S. Kabir, SPE, ChevronTexaco Copyright 2005, Society of Petroleum Engineers Inc...
Proceedings Papers

Paper presented at the Middle East Oil Show, June 9–12, 2003
Paper Number: SPE-81466-MS
... straight line reservoir pressure diagnostic plot diversion variation drillstem testing upstream oil & gas bottom hole pressure permeability drillstem/well testing acidizing matrix diagnostic plot bpm stimulation theoretical basis society of petroleum engineers spe 81466 injection rate...
Proceedings Papers

Paper presented at the Middle East Oil Show, June 9–12, 2003
Paper Number: SPE-81516-MS
... solution-gas-drive reservoirs. drillstem/well testing non-darcy flow coefficient test plot correlation straight line tech skin factor wellbore high-velocity flow simulated case reservoir coefficient pressure condition drillstem testing formation damage permeability flow effect...
Proceedings Papers

Paper presented at the Middle East Oil Show, March 11–14, 1995
Paper Number: SPE-29893-MS
... injection straight line pressure falloff behavior injectivity injection profile seawater injection reservoir temperature enhanced recovery permeability lnjectivity decline SPE 29893 Factors Affecting lnjectivity Decline A.M. AI-Hamadah, Saudi Aramco SPE Member Copyright 1995, Society of...
Proceedings Papers

Paper presented at the Middle East Oil Show, March 11–14, 1995
Paper Number: SPE-29895-MS
... engineers gas well graph-simulated case permeability sandface flow rate drillstem testing upstream oil & gas flow rate reservoir intercept pseudotime pressure measurement bottomhole pressure simulated case drillstem/well testing straight line normalized pseudopressure new technique...
Proceedings Papers

Paper presented at the Middle East Oil Show, November 16–19, 1991
Paper Number: SPE-21400-MS
... minifracture analysis method. P. 15 flowback period straight line closure pressure flowback rate upstream oil & gas microfracture gal mechanism drillstem/well testing fracture spe 21400 fracture closure application leakoff flowback test drillstem testing pressure difference...
Proceedings Papers

Paper presented at the Middle East Oil Show, November 16–19, 1991
Paper Number: SPE-21403-MS
... wellbore storage horner plot straight line derivative curve spe 21403 flow period regime flow regime boundary permeability log-log plot horizontal well superposition time function radial flow upstream oil & gas drillstem testing linear flow drillstem/well testing type curve early...
Proceedings Papers

Paper presented at the Middle East Oil Show, March 11–14, 1989
Paper Number: SPE-17942-MS
... theoretical approach. P. 133 porosity triplet base mud projection straight line well logging standard deviation spe 17942 water saturation equation log analysis regression factor plane saturation new technique upstream oil & gas contour line resistivity artificial intelligence...
Proceedings Papers

Paper presented at the Middle East Oil Show, March 11–14, 1989
Paper Number: SPE-17971-MS
... diagnose the existence of fractures in the reservoir. In many cases presented, 2 parallel straight lines with presented, 2 parallel straight lines with transition in between were noticed on Horner plot. In some cases, the pressure build-up tests plot. In some cases, the pressure build-up tests conducted in...
Proceedings Papers

Paper presented at the Middle East Oil Technical Conference and Exhibition, March 11–14, 1985
Paper Number: SPE-13733-MS
... differentiated and rearranged in such a way that a straight line relationship between the variables is obtained. This may be achieved by plotting log (tâ??p/â??t) vs. 1/t. The slope and intercept of the resulting straight line are used to estimate the transmissibility and the storage coefficient respectively...
Proceedings Papers

Paper presented at the Middle East Oil Technical Conference and Exhibition, March 11–14, 1985
Paper Number: SPE-13732-MS
... straight line form if pressure versus the inverse of time is plotted on a specially devised exponential integral graph paper. Obtaining a straight line on such a graph paper makes the analysis of interference tests very simple. Introduction Interference well tests are conducted in order to determine...

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