... in the arctic; use of injection wells and the freeze-thaw/evaporation processes hold promise for dewatering coalbed methane wells in rural Alaska. Introduction Coalbed methane has become an important source of natural gas production in the Lower 48 States and other places around the world. One current...

... described through their rank order. timelag upstream oil & gas enhanced recovery spearman rank correlation coefficient fluid dynamics spearman rank coefficient investigation anisotropy injector experiment reservoir characterization injection well production well transmissibility...

... Abstract A 3-D physical model has been developed to investigate the Combustion Override Split-Production Horizontal well (COSH) process. The 3-D model was rectangularbox with I8 cm by 54 cm by I2 cm dimensions. The vertical well was used as anair injection well and top horizontal well was used...

... conformance in injection wells. Acid stimulations have been used since the 1940's as a means of improving production, with the first acid fracturing treatments being pumped in the late 1980's. Beginning in I996, these two technologies were combined in an attempt to successfully increase oil production from...

... such as petroleum hydrocarbons are most suitable for treatment with bioventing (5). Bioventing systems vary depending on unique site and contaminant conditions. The simplest layout is composed of an air injection well only. Other systems may include an air injection well into the contaminated soil...

... into the formation. Using this technique, an injection well in the Norman Wells field was successfully acidized. Excellent vertical conformance resulted, and high daily injection rates were also realized. Introduction Located approximately 80km south of the Arctic circle In the Northwest Territories, the Norman...

... Introduction Coil tubing conveyed production logs were obtained from four high angle and two horizontal wells in the Norman Wells oilfield during September 1990. Five wells were producers and one was an injection well. Coil tubing systems have seen increasing use in the past five years due...

... Abstract In 1984, Texaco initiated a field test of multizone thermal recovery with dually completed injection wells. With a single tubing string and packer, a concentric injection arrangement was implemented. Hot water was injected down the tubing into a previously-steamflooded sand, While...

... Introduction When two fluids of differing densities, such as liquid water and steam vapor, flow through circular conduits, they tend to segregate. Investigators of two-phase flow in steam injection wells have documented the occurrence of two-phase annular flow in the injection tubing when...

... trajectoriescombine to form a diverging conical shell. jet drill head injection enhanced recovery leach conical water jet cleanout drill head completion injection well conical shell smolarchuk deposit nozzle packer walker nozzle conical jet coil upstream oil & gas technical meeting...

... Abstract The technical and economic feasibility of slant drilling Valhalla Doe Creek water injection wells from central pads was investigated and it was found to be a practical and economic alternative. Slant drilling commenced in September, 1984 and 23 wells have been completed. This paper...

.... Introduction Steamflood operators are using insulated tubing in an increasing number of steam injection wells to reduce heat loss or in some cases to protect low grade casing from excessive thermal stress. Wells in Canada the United States and Venezuela are now equipped with over 400,OOO feet of insulated...

... of the system was maintained 80 °F. The results of the laboratory study showed that CO 2 would dissolve some of the rock aroundan injection well in a field application. The higher the injection pressure, the more pronounced would be this effect. Dissolved carbonate was found to be precipitated along the flow...

... Abstract The efficiency of a thermal enhanced oil recovery project with surface steam generation can be significantly increased by using insulated tubing in the injection wells. In order to evaluate the performance of various insulated tubulars it is necessary to obtain detailed temperature...

.... It was found the flame front moved radically outward from the injection well as retorting progressed. The location of the air injection was moved from the central injection well to well 10 in the northeast part of the pattern on the 60th day of operation to increase oxygen utilization, which averaged 65...

... a method of scheduling, monitoring, and optimizing the performance of pattern waterflood projects. The system is presently in operation handling some 900 producing wells and 300 injection wells in the propertiesoperated by Mobil Oil Canada, Ltd. in the Pembina field, Alberta. These properties cover an area...