... measurement mechanism saturation pressure coefficient mineral society of petroleum engineers complex reservoir proppant fluid dynamics upstream oil & gas liquid co 2 co 2 slickwater crude oil composition supercritical co 2 injection core sample Introduction Nowadays, tight oil...

..., short fracture length and low viscosity of pure CO 2 , hinders its application and development. In this investigation, a novel silicone thickener consisted of CO 2 -Phobic Phenyl and CO 2 -Philic Ester group is prepared. The thickening performance of a thickener in liquid CO 2 is measured by capillary...

...Low-pressure liquid supply system The low-pressure liquid supply system consists of one or more storage tanks, standing tanks, liquid supply manifold and booster. One or more tanks are used to store liquid CO 2 , and the volume of each tank is required to be consistent. The tanks...

... in multiple field tests on tight sandstone oil reservoir. In this paper, the latest development of Chinese liquid CO 2 fracturing technique is introduced through a case study of typical well. The target depth of operating well is 1730.8m-1757m, with a daily fluid production of 1.6t and oil production...

... Abstract During liquid CO 2 fracturing treatment in PetroChina Jilin Oilfield, CO 2 flows through storage tank, booster pump, blender, fracturing pump, and eventually into wellbore and production zone, generating a very complex phase evolution behavior. morphology control of CO 2 is a key...

... Liquid nitrogen can be used as cooling liquid shown in Fig. 7 . This approach is easy in terms of execution, but costs a fortune, as liquid nitrogen is expensive. An alternative is to shunt part of liquid CO 2 from the storage tank and use low-temperature low-pressure gaseous CO 2 , formed...

... Abstract Liquid CO 2 fracturing is an outstanding stimulation treatment for unconventional reservoirs. It has several advantages including high flowback, small damage in reservoir and outstanding stimulation effect. However, as liquid CO 2 suffers from its low viscosity and high friction...

... Abstract In liquid CO 2 fracturing, liquid CO 2 is injected into reservoirs to crack open the formation, providing highly conductive paths for hydrocarbons. It's superior to water-based fracturing, because water is excluded during the whole process, resulting in formations free from water...

... Abstract Liquid CO 2 fracturing is an outstanding stimulation treatment for unconventional reservoirs, such as coal-bed methane reservoir and shale gas reservoir. However, the viscosity of liquid CO 2 is extremely low, only 0.03 ~ 0.10 cp under reservoir conditions, resulting a very poor...

... gas, containing large amount of CO 2 , is cooled in heat-exchangers block, and after the preliminary expansion, it is fed to rectification column. In rectification column occurs a fractionating of inlet mixture, at that condensate, generally containing liquid CO 2 , is sampled in the bottom...

... reservoir liquid co 2 society of petroleum engineers recovery factor enhanced oil recovery Introduction Enhanced oil recovery (EOR) by carbon dioxide (CO 2 ) injection is an established technique to improve oil recovery ( Latil 1980 , Lake 1989 , Green and Willhite 1998 ). CO 2 causes...

... technology with an emphasis on the evaluation of the relative permeability of supercritical CO 2 , brine/liquid CO 2 , created achieved fracture porosity and permeability; and the prediction of the production performance of stimulated fractures. Numerical simulation employing the development model has been...

... Efficiency membrane hydrocarbon shell global solution production control Production Chemistry separation technology liquid co 2 application contaminated gas society of petroleum engineers For contaminated gas fields between 30 and 50% CO 2 conventional technologies could also be applied...