... To facilitate the understanding of the above goals pulsed neutron log data was acquired across perforated intervals before and after water injection. The fluid in the wellbore before pulsed neutron logging was CO 2 and the formation was saturated with supercritical CO 2 . After this acquisition...

... is an activity, which allows to efficiently resolve demand seasonality problems. Natural gas injection and storage in depleted gas reservoirs is a common challenge that overcomes this problem. The aim of this study is to use tracer test method as a way to better understand a gas condensate reservoir to use...

... Abstract When conducting enhanced oil recovery (EOR) projects, utilizing CO 2 as a solvent, there are three primary options for sourcing the CO 2 injectant. These are naturally occurring deposits, anthropogenic flue gas capture, or recycled CO 2 from an earlier stage of an EOR project. All...

... the living quarters on the facilities can be disposed of in a safe, environmentally prudent and economic manner. To achieve this goal, process must be re-designed in terms of treatment capacity, effluent quality, particle size and re-injection process. There are always some other wastes been re-injected...

... sandstone during CO 2 injection process. Experiments were conducted by simulating the reservoir condition with high temperature and high pressure in depth of about 1000m or more. Supercritical CO 2 (10MPa, 40°C) was injected into water-saturated sandstone. The results showed that resistivity increased...

... of the injected acid into less permeable zones. Recent studies indicated that sometimes diversion was not achieved with a severe damage that can lead to loss the whole well. There is no agreement on when this system can be successfully applied in the field. Single-stage and multi stage-stages acid test of well...

... flooding methods exhibition proceedings reservoir carbonate reservoir avg injection spe annual technical conference oklahoma oil recovery caribbean petroleum engineering conference eor method surfactant viscosity upstream oil & gas symposium application limitation sweep efficiency...

..., the water flooding could not meet the demand of stable output; the water broke through only a few years after injection. The predicted waterflooding recovery is only 13.4%. In order to improve the recovery, the investigations of steam injection in the Chao-601 field were performed. Correspondingly, a pilot...

... and the technical conditions for steam overriding are pointed out. Field test results indicate that by taking some measures, such as adopting the "uphole" perforation, profile control, separate or selective steam injection, vertical and horizontal well combined SAGD, etc., the uneven producing of the reservoir...

... Abstract More than 120 clastic reservoirs were examined to extract knowledge of application of thermal recovery and waterflood to heavy or extra-heavy oil (less than or equal to 25 °API gravity). The thermal recovery methods discussed include cyclic steam injection, steam flood, in-situ...

... of injection and production technology due to the limitation of wellbore space, the complexity of the wellbore structure of horizontal wells and the high temperature of produced fluids, leading to great difficulty in controlling the injection and production parameters. Therefore, the test was conducted...

... Abstract Polymer flooding provides a better mobility ratio than water flooding, for a better sweep especially in viscous oil reservoirs that have been under water flood. During polymer injection, larger fractures may be induced compared with water injection. The geometry and propagation...

... in the middle of the HBL. The simulation results indicate that the hydrate dissociated zone expands around the well, and the hydrate formation occurs during the injection stage of the huff and puff process. The higher temperature of the injected brine appears to have a limited effect on gas production using...

... Abstract Subsurface drilling waste injection (WI) technology has been applied worldwide both onshore and offshore to minimize or eliminate surface disposal of drill cuttings and other drilling wastes, as well as minimize processing delays affecting drilling operations. Most current waste...

.... The simulation results indicate that with current technology, gas production from Shenhu hydrate deposits may not be economically efficient for all the production strategies we have investigated. injection shenhu area depressurization hydrate deposit drilling operation waterflooding production...

... the force balance is impaired by weakening gas cap energy due to gas production is illustrated. This condition can also be observed due to impaired water injection or the improper placement of water injection wells. For thin oil rim reservoirs with significant oil reserve, the strategy of hydrocarbon...

... 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...

... Abstract As naturally fractured reservoirs present wide ranges of geological characteristics and complex flow mechanisms between matrix and fracture, reservoir simulation is highly necessary to properly evaluate production performance. Pressure maintenance by gas and/or water injection is often...

... Abstract Steam flooding in heavy-oil sands has been well characterized over last decades as a mature technology, and while steam has been injected into light-oil, low-permeability sands almost as long, the mechanisms and effectiveness of this process are much less understood because...

... Abstract The development of extra-low permeability reservoirs (air permeability<10md) is a crucial challenge due to the high injection pressure and low oil production. Many methods had been used for low permeability reservoirs to improve the performance, such as hydrofracturing, surfactant...