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Keywords: flooding
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Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-130903-MS
... Abstract La-sa-xing oilfield of Daqing in China, which accomplished polymer flooding in quick succession, had now entered into subsequent water flooding stage with yearly increase reserves, so various development contradiction were serious, the effect of conventional measures by water flooding...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-131087-MS
... temperature (65~78°C) and low oil viscosity (<10mPa•s). Primary production and limited water flooding experience have shown that the recovery factor in these reservoirs is very low due to lack of reservoir energy and poor water injectivity. Gas injection has been optioned as an alternative secondary...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, June 8–10, 2010
Paper Number: SPE-131942-MS
... Abstract A three-dimensional model was built, representing one fourth of an inverted nine-spot flood pattern, and several parameters significant to oil recovery by steam flooding were scaled in the model size. The model was designed to simulate steam flooding of an extra-heavy oil reservoir...
Proceedings Papers

Paper presented at the International Oil & Gas Conference and Exhibition in China, December 5–7, 2006
Paper Number: SPE-104404-MS
... of the surfactant tensile force and mobility ratio of the oil/water contact could be decreased, ODE of hot water bank also be improved. Based on above survey we analyzed that the stimulations in the mid and later stage of heavy thermal production, not only steam huff and puff and steam flooding, the best...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, November 7–10, 2000
Paper Number: SPE-64653-MS
... of polymer flooding and ASP flooding, it is more and more difficult to measure the two profiles. In view of this situation, the logging techniques for measuring fluid injection and production profiles used appropriately at the stage of oil production with high watercut and polymer injection flooding...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, November 7–10, 2000
Paper Number: SPE-64722-MS
..., capital construction and production costs increase. How to produce the 60~70% oil remaining underground is a task that reservoir engineers all over the world are striving to solve. In the 60~70’s, petroleum professionals in many countries conducted extensive studies on polymer flooding technology...
Proceedings Papers

Paper presented at the International Oil and Gas Conference and Exhibition in China, November 7–10, 2000
Paper Number: SPE-64792-MS
... Most of them are two-phase (aqueous, oleic) model, not considering the influence of vapor phase; thus have a big problem in conjunction with previous water flooding, especially when existing vapor phase. Excessive simplicities exist in the description of CPPCPF, especially in the description...
Proceedings Papers

Paper presented at the SPE International Oil and Gas Conference and Exhibition in China, November 2–6, 1998
Paper Number: SPE-50916-MS
... Abstract Based on the research of earlier stage, a detailed investigation was conducted over the synergistic oil displacement mechanism and various physico-chemical phenomena. Especially, the new physico-chemical phenomena of combination flooding recognized in recent years have been further...
Proceedings Papers

Paper presented at the SPE International Oil and Gas Conference and Exhibition in China, November 2–6, 1998
Paper Number: SPE-50917-MS
... upstream oil & gas calculation gas injection method miscible method near-miscible drive flooding criterion slim-tube test reservoir oil experiment mechanism miscibility society of petroleum engineers interracial tension pseudo ternary phase diagram displacement modeling...
Proceedings Papers

Paper presented at the SPE International Oil and Gas Conference and Exhibition in China, November 2–6, 1998
Paper Number: SPE-50933-MS
... analysis, and then introduces the study of thermal-oxidative stability of polymers by adding stabilizers. Finally it summarizes the optimized design and effectiveness of high-temperature (72 C) polymer flooding pilot test in layer II 5, Shuanghe oilfield, where oil recovery is increased by 10.4%. P. 533...
Proceedings Papers

Paper presented at the SPE International Oil and Gas Conference and Exhibition in China, November 2–6, 1998
Paper Number: SPE-50930-MS
... Abstract The paper introduces the feasibility research method on how to study CO2 miscible flooding, including mechanics experiments, physical simulation experiment, numerical simulation and economic evaluation. Development plan is optimized on a pilot project based on a comprehensive...
Proceedings Papers

Paper presented at the SPE International Oil and Gas Conference and Exhibition in China, November 2–6, 1998
Paper Number: SPE-48841-MS
... the feasibility of air injection processes. Generally, if the miscibility with nitrogen can not be achieved, only an immiscible gas displacement needs to be evaluated, as this represents the application of air injection as an immiscible gas flood. Air Injection-Based Oil Recovery Processes Abstract...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, November 14–17, 1995
Paper Number: SPE-29904-MS
...,s,o) are considered in the model. Owing to the low concentration of surfactant (generally Cs<1%) in ASP flooding, two phases (w,o) are essentielly in presence in most cases. Number of components(n C ): n components are designed, mainly as follows: w, o, s, p, Na + , Ca 2+ , Mg 2+ , OH − CO...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, November 14–17, 1995
Paper Number: SPE-29905-MS
... pilot area petroleum sulfonate sodium viscosity alkaline-surfactant-polymer combination flooding alkaline upstream oil & gas chemical flooding methods combination flooding combination effect petroleum carboxylic soap enhanced recovery experiment flooding concentration acid...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, November 1–4, 1988
Paper Number: SPE-17841-MS
... is the complexation property of the additive which suppresses the surfactant precipitation. The complexation mechanism acts during both preflush and surfactant flooding. During preflush, it decreases the calcium ions fixed on the clay, and during flooding, it improves the calcium tolerance of surfactant. Therefore...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, November 1–4, 1988
Paper Number: SPE-17848-MS
... ABSTRACT Based on the results of sharp decline in water cut, increase in the oil production rate, and a 5% increase in the recovery factor obtained in a polymer flooding pilot test in a reservoir with positive rhythm in Daqing Oil Field, this paper discusses the favorable conditions for polymer...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, March 17–20, 1986
Paper Number: SPE-14838-MS
... and argillaceous section in Daqing area is proposed. Data analysis indicates that the average accuracy for determining oil saturation in place by c/o logging is 10.9%, and the degree of agreement of grade of flooding determined for an oil reservoir is 76.9%. well logging flooding interpretation log...
Proceedings Papers

Paper presented at the International Meeting on Petroleum Engineering, March 17–20, 1986
Paper Number: SPE-14855-MS
... and the concentrations of added electrolytes Were approximately in a straight line on log-log coordinates: ABSTRACT In alkaline flooding, Interfaclal properties of acidic oil/aqueous caustic play an important role. Although lots of experimental results concerning the effect of various parameters upon interfacial...

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