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Keywords: flooding
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Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174569-MS
... of surfactants used in SP combination flooding (Q/SY 1583–2013) and Chinese National Standard of the surfactants-determination of emulsifying ability-colorimetric method (GB/T 6369–2008) [ 10 – 11 ] . Emulsifying stability ( S et ) is defined as the stability of oil/water emulsion emulsified with a certain...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174566-MS
... Abstract Chemical flooding EOR techniques, mainly including polymer flooding, chemical combination flooding and foam flooding, play a crucial role in Chinese oil industry. Field tests proved that chemical flooding EOR techniques could be applied successfully in onshore reservoirs in China...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174590-MS
... curves. However, there are no well recognized methods to perform the calculation, especially for carbon dioxide flooding due to the strong interaction among CO 2 , brine and oil phases. Diffusion coefficient and solubility of CO 2 in crude oil and brine were measured. Furthermore, all parameters...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174591-MS
... and HOPEC’S HDS surfactant product were chosen to form surfactant-polymer flooding system. Through numerical simulation to optimize the agent dosage, slug combination and injection rate, based on the research, the injection scheme is designed as the first slug of 0.23 pore volumes (PV) of polymer solution...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174648-MS
...Development of Image Analysis Algorithms In microvisual studies image analysis substitutes effluent material balance known from core floods. Several image analysis algorithms were developed ( Matlab ® (2013) ) to segment images and to calculate: Oleic and aqueous phase saturation...
Proceedings Papers

Paper presented at the SPE Asia Pacific Enhanced Oil Recovery Conference, August 11–13, 2015
Paper Number: SPE-174697-MS
... A microscopic photoetching simulation model ( Zhu et al., 2014 ) was used for the study of microscopic mechanism of microbial flooding. The micro-displacement efficiency of microbes could be quantitatively studied through tests and image processing. The experiment showed that various remaining...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165213-MS
... Abstract Surfactant-Polymer (SP) flooding has attracted lots of attention among chemical combination flooding researchers in recent years. Pilot tests of SP flooding in China were introduced and key factors influencing the performance of pilot tests were analyzed in this paper. Main...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165224-MS
... Abstract EOR technology has been applied on many projects globally with variable success. It shows great potential for offshore heavy oil with oil recovery low in life span of platform (general less than 30% by water flooding). About 60-70% oil is remained in the formation after water flooding...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165208-MS
... Abstract Lab study of chemical EOR for the carbonate reservoir was performed through core characterization, chemical formula screening, surfactant adsorption losses experiments and oil displacement core flooding tests of chemical flooding. The research results lay the foundation of future...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165211-MS
... Abstract For mature oil fields, foam flooding is an attractive chemical EOR technique and many pilot tests have been carried out in China. The performance of foam flooding pilot tests and its affect factors on oil recovery was discussed in this paper. The development trend and key technologies...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165271-MS
... Abstract Foaming of nitrogen stabilized by C 14-16 alpha olefin sulfonate in natural sandstone porous media, previously subject to water flooding, was studied experimentally. Foam was generated in-situ by co-injecting gas and surfactant solution at fixed foam quality. Effect of surfactant...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165300-MS
... flooding Upstream Oil & Gas visual observation spe 165300 reservoir potential signal application WAG process Oil Recovery porous media society of petroleum engineers Introduction It is estimated that around 70% of the world oil production are produced from the matured oil fields...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 2–4, 2013
Paper Number: SPE-165258-MS
... recovery Simulation simulator equation of state spe 165258 Artificial Intelligence viscosity workflow flooding microemulsion Oil Recovery fluid modeling Upstream Oil & Gas experiment expression dhd simulator application water flood interaction equation surfactant solution flood...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-145024-MS
... quickly after injection, water breakthrough and flooding fast, the development effect of secondary oil recovery were not significant in the five years. Abstract The Chang-6 reservoir is characterized by low porosity, ultra-low permeability and low Deliverability. At present, water injection pilot...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-144272-MS
... of 1361–1576 meters. The average formation thickness and sand thickness from the well drilling is 39.8 m and 31.9 m respectively. In this sector the average porosity is 19.2%, average permeability is 176.2×10 −3 μm 2 and mean oil saturation is 74.3%. Laboratory Test of Enriched Gas Miscible Flooding...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143142-MS
... on performances of thermal and non-thermal flood processes. Then, a detailed economic analysis was performed to assess the economic feasibility of each recovery process/scenario. This work has contributed significantly toward our understanding of the mechanisms of thermal injection in high permeability heavy oil...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143506-MS
... Oilfeild without special mentioned, formation temperature is 80□, injected brine salinity is 19334mg/L, Ca 2+ +Mg 2+ =514 mg/L. Crude oil is from Shentuo area. Post-polymer flooding experiment is conducted under the reservoir condition of Zhongl Block in Gudao area of Shengli Oilfield, formation...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-143578-MS
.... The core-floods presented later concerned this combination. The measured n-hexadecane/water and n-hexadecane/AOS+FC interfacial tensions were found to be 28.7±0.2 and 1.5±0.2 mN/m, respectively, at room temperature and atmospheric pressure. Abstract This paper reports a laboratory study of foam...
Proceedings Papers

Paper presented at the SPE Enhanced Oil Recovery Conference, July 19–20, 2011
Paper Number: SPE-144012-MS
... studies the alternative development mode after steam injection. Using the physical simulation method, we study the development effect of converting into Hot-water flooding under different temperature and different moment, and investigate the oil displacement efficiency of Water-Alternating-Steam Process...

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