Abstract The efficiency of oilfield water injection system is generally low and energy consumption high. With the deepening exploitation, cut increasing, power increasing year by year, exploitation cost conservation reduction are very important. In order to improve reduce loss, this paper puts forward pipe network optimization design method partial pressure injection, establishes mathematical m...

According to the basic parameters of Yangquan mining area, based on determined meso physical and mechanical geological parameters, several groups numerical calculation models considering different fracturing (water injection flow water time) are established. Then, simulation test is carried out by using particle discrete element program, influence effect related coal seam hydraulic analyzed num...

Carbonated water has proven advantages over conventional CO2 injection in terms of arresting free mobility, low-pressure injection, lower volume requirement, and higher efficiency. The term “engineered water” is designated to selective ion-spiked with the advantage ion-exchange reactions rock minerals releasing trapped oil. This article investigated synergic effect dissolved engineered for oil ...

This paper, by conducting comprehensive analysis on water-flooding reservoir, intensively studied and discussed the characteristics of geological development, determined evaluation indexes development effect, carried out research from five steps, first is introduction part, it conducted indepth study discussion background, significance, literature review, methods four aspects. The second outlin...

water injection is an enhanced oil recovery method which is applied for number of reservoirs especially in the offshore fields around the world. sea-water injection process is usually associated with important concerns affecting the efficiency, safety, and economy of the operation like formation damage, mineral scaling, early breakthrough and corrosion. incompatibility between injected and form...

in this research the experimental and theoretical studies on different enhanced oil recovery (eor) techniques, i.e. water flooding (wf), gas injection (gi) and water alternating gas process (wag) were performed on specimens taken from an iranian carbonate offshore reservoir at the reservoir condition. the experimental results for each specified techniques were compared with the corresponding re...

Port water injection (PWI) is considered one of the most promising technologies to actively control increased knock tendency modern gasoline direct (GDI) engines, which are rapidly evolving with adoption high compression ratios and brake mean effective pressure levels in effort improve their thermal efficiency. For PWI technology, appropriately matching spray evolution intake system design alon...

Experiments were conducted to evaluate the performance of a low heat rejection (LHR) diesel engine. Performance parameters and emission levels were determined at various magnitudes of brake mean effective pressure. Combustion characteristics of the engine were measured with TDC (top dead centre) encoder, pressure transducer, console and special pressure-crank angle software package at peak load...

OBJECTIVE To investigate the effects of salvianolic acid B (SA-B) on portal hypertension induced by endothelin-1 in rats. METHODS Twenty-eight Sprague-Dawley rats were randomly divided into four groups: ET-1 group, ET-1+SA-B group, ET-1+ET(A)R blocker (BQ-123) group and ET-1+ET(B)R blocker (BQ-788) group. The rats of ET-1+SA-B group underwent intragastrical administration of salvianolic acid ...