... been developed. Many parameters believed to be pertinent have been investigated, such as connate water saturation, relative permeability saturation relations, sample wettability, and waterflood scaling (including the effect of such variables as pore size, flow rate, viscosities and interfacial tension...

... be employed to solve it. Finite difference method is used to discretize the equations. The grid is shown in Figure 3 . Because of the nonlinearity, these equations are solved fully implicitly through iteration. Abstract Water injectivity decline is a very common phenomenon in waterflooding fields. Most...

.... Gel treatments should not be used to treat the most difficult problems—i.e., three-dimensional coning, cusping, or channeling through strata with crossflow. gelant upstream oil & gas waterflooding gel placement injection fracture production well pipe reservoir permeability leak...

... injector criteria artificial intelligence waterflooding engineer permeability producer team member placement technique pilot well history upstream oil & gas fracture communication Introduction In early 1998, Occidental Permian, Ltd. (OPL) realized that, to make their large CO 2...

... communication reservoir characterization injection upper unit spe 70037 enhanced recovery ra budran field waterflooding naguib modeling & simulation reservoir simulation simulation model water injection upstream oil & gas infill well interpretation field performance reservoir modeling...

... Abstract This case history will discuss how MARCIT sm polymer gels were used at injection wells to correct channeling problems in a waterflood, so that additional oil could be swept toward producing wells and recovery improved. As a result of the polymer gel project, oil is up, water is down...

... the changes are roughly 10 percent of the signal and twice as large as the system noise level. It is therefore feasible to track injected water following a CO 2 flood but probably not the CO 2 flood itself. Note that only part of the anomaly is visible in the waterflood example. The effect of this partial...

... of this mature offshore field? ▪ Waterflood Project Development How to engineer an economically viable waterflood development plan for a primary depleted reservoir, considering peripheral and patterns floods? It was concluded that integrated software is now playing a key role in reservoir management...

... fracturing chemical flooding methods enhanced recovery fluid dynamics production control grigg spe 59550 waterflooding reservoir surveillance core analysis matrix permeability completion installation and operations production monitoring reservoir characterization injection composition...

... water injection rates (less than 250 BWPD) at the HGEU creating significant fractures (exceeding 400 feet of half-length). The mapping also showed that the length of the fractures was relatively rate independent over the range of rates tested. The HGEU waterflood pattern orientation, pattern spacing...

... k_v/k_h This case is identical to the large k v /k h case with a k v /k h ratio = 0.05. Case D was the best scheme for this simulated reservoir. The results of Case D were compared to the base case (Case A) of continued waterflooding. Ultimate oil recovery improved by 136 MSTB or 13...

... Abstract This paper presents both downhole and surface tiltmeter hydraulic fracture mapping results of five fracture treatments (in two wells) in the Clearfork formation located in the North Robertson Field, West Texas. This field is under waterflood and both injectors and producers...

... 59714 fracture waterflooding upper san andre cvu lower san andre producer oil production log data vgsau well logging central vacuum unit saturation perforation upstream oil & gas infill well enhanced recovery hydraulic fracturing reservoir simulation spe 59714 drilling fluids...

... and crude oil-liquid CO-water systems to isolate mechanisms and to address wettability concerns. We found that the injectivity of the chase water zone was comparable to the initial waterflood injectivity, and increased as the trapped CO dissolved. The injectivity of the CO-rich zone was significantly...

... Abstract In order to understand waterflood performance in low permeability, naturally fractured Spraberry Trend Area reservoirs, an integrated study of imbibition waterflooding has been performed. In this study, oil production during imbibition waterflooding in naturally fractured reservoirs...

... characterization mcdonald fracture permeability drillstem/well testing pay zone drillstem testing waterflooding sheffield reservoir fracture trend spraberry database water injection schechter injection well hydraulic fracturing injection spraberry fluid dynamics fracture orientation drilling...

... dynamics chemical flooding methods equation of state coefficient mole fraction waterflooding fraction Introduction Compositional models using a cubic equation of state are usually used to simulate the enhanced recovery process of gas injection. In most of the published models, for example...

... in an estimated increased revenue of over $3 million in one year. formulation acid sludge tendency compatibility test waterflooding upstream oil & gas acid system sludge crude oil acid sludge test procedure solvent mixture crude oil enhanced recovery correlation iron concentration sludge...

... pulsed-neutron capture logging vealmoor lwater figure porosity pinchout wasson san andre field gas cap pulsed-neutron capture waterflooding society co 2 petroleum engineer permian basin example Introduction Pulsed-neutron capture log technology permitting fluid typing in cased hole...

... Abstract This paper describes the design of the miscible CO 2 flood on the Sundown Slaughter Unit. The 8,700 acre unit was a mature waterflood in the San Andres formation surrounded by seven active CO 2 floods. CO 2 injection commenced on the Unit in January of 1994. The project benefited...