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Keywords: oilfield
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Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, November 17–19, 2020
Paper Number: SPE-202349-MS
... Figure 5 Fixed valve (left) and moving valve (right) of plane water nozzle In China’s oilfields, 92% of the reservoirs are continental clastic rocks with strong vertical heterogeneity and weaker formation energy[ 1 - 2 ]. Over years of waterflooding development, most of the old...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196282-MS
... Abstract For waterflooding oilfields, both the lab experiments and field practices have proved that the physical properties of water-flooding reservoirs would be altered due to the washing of injected water. This condition has not aroused enough attention. There is no proper approaches...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196467-MS
... Abstract Block-X Oilfield in Bohai Bay (China) is a typical offshore heavy oil reservoir, which has an oil viscosity of 24-452 mPa·s, an average porosity of 31% and stronger permeability heterogeneity (average 2000 mD). Before polymer flooding, over 10 years water flooding achieved a recovery...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 29–31, 2019
Paper Number: SPE-196546-MS
.... The method was applied to Bohai oil field which is effective for establishing well interaction pattern. Recommendations were given to improve waterflood efficiency. enhanced recovery evolutionary algorithm Upstream Oil & Gas cumulative water injection oilfield connectivity cumulative liquid...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192048-MS
... Abstract As the most commonly used process for the secondary development of oilfields, waterflooding plays a significant role in maintaining reservoir pressure, enhancing oil recovery and achieving high and stable oil production. The previous waterflooding optimization studies usually worked...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192067-MS
... Abstract In China, the initial development program was "early zonal water injection" for the reservoirs with insufficient natural drives and low formation-saturation pressure differential. At present, the oilfields have successively been progressing into the late development stage with high...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil and Gas Conference and Exhibition, October 23–25, 2018
Paper Number: SPE-192016-MS
...’ development, S oilfield has entered high water cut stage. The layer contradiction is prominent and the water flooding condition is complex, which result in the complex decentralized state of the remaining oil. In order to determine the remaining oil distribution to guide the comprehensive adjustment...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186188-MS
... 1. Cai S. , Song J. 2007 , Analysis on the Meaning and Effect of Special Oil Gain Levy [J] . Market Modernization , ( 9Z ): 382 - 384 . 2. Dong W. 2011 , Practical Exploration and Enlightenment of Brown Oilfield Development in East China [J] . Friends of Accounting...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186258-MS
... light on this hypotesis. In particular, three production fields, located near the epicenters of the seismic sequence, were closely examined: 1) a geothermal field; 2) an underground natural gas storage field; 3) a mature oilfield with reinjection. According to the conclusions of the above International...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186242-MS
... using a packer or other downhole isolation tool was identified in the Changqing oilfield in China. The objective was to prove the concept of using a gelled annular isolation technology for re-fracturing in this oilfield for applicability in the Asia Pacific region. Two candidate wells were selected...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 17–19, 2017
Paper Number: SPE-186978-MS
... Upstream Oil & Gas thermal method steam-assisted gravity drainage oilfield SAGD cyclic steam steam injection process thermal recovery method steam injection offshore thermal recovery technology oil production control system valve stimulation flue gas stimulation injection comprehensive...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182333-MS
... cut increase on petroleum production, which severely impacts reservoir development efficiency and economic benefit. Prominent contradictions are as follows. 1) After an oilfield enters into a high water cut stage, the conflict between injection and production is very serious, such as unequal water...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182311-MS
... Abstract In the Bohai Oilfield in China, the water injectors with sand control completion are characterized by multiple layers (2-6 layers), high single-layer injection rate (300-700 m3/d) and large borehole deviation (30-60°). The conventional wire fishing and the high-efficiency measuring...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182418-MS
... wells and faster production decline. So combination of IOR and EOR technology (shortly as "CIET") was proposed to promote economic development and further improve oil recovery. This paper focuses on mid-high-permeability multi-faults reservoirs of Dagang Oilfield in China. The fundamental way of CIET...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182431-MS
... of the low permeability natural core from A oilfield were carried out, and the changes of core permeability, pore structure and oil displacement efficiency in advanced water injection were analyzed. Meanwhile, the changes of sweep efficiency and recovery in advanced water injection were figured out...
Proceedings Papers

Paper presented at the SPE Asia Pacific Oil & Gas Conference and Exhibition, October 25–27, 2016
Paper Number: SPE-182356-MS
... Abstract The Upper Cretaceous Mishrif Formation is widely distributed in the Middle East, and it is one of main reservoirs in the super-giant Rm Oilfield. However, since development in 1954, its Mishrif carbonates, accounted for 45% oil-reserves, are not largely developed with only 5.5% oil...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176311-MS
... Abstract Continental sedimentary sandstone oilfield in China, represented by the Daqing Oilfield, locates in northern Songliao basin, eastern China. The field produces from several sand intervals in mid-Cretaceous Saertu, Putaohua and Gaotaizi groups, large River Delta sediment, the net pay...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176110-MS
... Abstract AD oilfield in Iraq is a large-scale complicated carbonate oilfield with mid-high porosity and low permeability, of which OOIP is 3.5 billion barrel. The lithology and property for the oilfield is featured with strong heterogeneity, especially high permeability streaks and dissolution...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176176-MS
... Abstract Accurate geological characterization for complex carbonate reservoirs plays an important role in guiding the optimal oilfield development. Mishrif Formation of H Oilfield in south of Iraq is the most important target among several Cretaceous oil-bearing carbonate formations due...
Proceedings Papers

Paper presented at the SPE/IATMI Asia Pacific Oil & Gas Conference and Exhibition, October 20–22, 2015
Paper Number: SPE-176163-MS
... Abstract Sevensprings oilfield is one of the oldest mature-flood fields with target stratum between 1000 and 1200m TVD in China with Strong permeability heterogeneity within the range of 0.01-50mD. Most of its wells have been fractured. But for now, the fractured wells have lost their power...

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