... of their lithology, drivemechanisms and oil density. Productivity Improvement Factors (PIF, the ratio of production of a horizontalwell to a vertical well for the first 12 months) and the key benefit(incremental oil recovery versus acceleration) of horizontal wells were alsoexamined. Overall, the horizontal wells...

... to the user with an online database of typical values and a comprehensive help utility. Applications of the software to underbalanced drilling of horizontal wells in a number of sandstone reservoirs are demonstrated. Introduction Underbalanced drilling technology is often considered for naturally fractured...

... Abstract THAI - "Toe-to-Heel" Air Injection, is a new EOR process, which integrates advanced technology and horizontal well concepts, to achieve potentially very high recovery of heavy oil. It can also realise very substantial in situ upgrading by thermal cracking, producing upgraded oil...

... Abstract Husky Oil Operations Limited (Husky) has substantial undeveloped heavy oil resources in the Aberfeldy General Petroleum (GP) formation in the Lloydminster area. The oil has a gravity of 14 to 15 °API and a dead oil viscosity of approximately 3000 mPa.s. Husky pursued horizontal well...

... be used to analyze the reservoir performance and to estimate some reservoir parameters such as reservoir thickness, permeability, and the trend of the increase or decrease of the productivity along the wellbore. In well testing of horizontal wells with constant length, the effect of the reservoir...

... as the number of well pairs is increased. Horizontal well pairs are predicted to have much lower early to midlife SOR's than would an equivalent arrangement of vertical wells using the SAGD process. Simulations indicate significant oil plugging takes place in thinner thief zones. Simulations...

... Abstract Horizontal wells have been shown to be successful in improving oil recovery for marginal heavy oil reservoirs in Saskatchewan and Alberta. One commonly encountered problem in recovery operations for these poorly consolidated reservoir is the production of sand and fines...

... Abstract The tight gas resource potential in the Western Canadian Sedimentary Basin is enormous. To date, however, it remains relatively unexploited and underdeveloped. The use of multiply fractured horizontal wells (MFHW) appears to be the "breakthrough" technology needed to economically...

... production. Horizontal wells have been found by many operators to increase recoverable reserves within their fields. horizontal well experiment heavy oil producer recovery chemical flooding methods upstream oil & gas ultimate recovery displacement enhanced recovery co2 injection gas...

... the horizontal well and the production performance. Results obtained demonstrate that the systems without stinger installed yielded a sharper water cone profile, earlier water breakthrough, and a significantly lower oil recovery than those with stinger did. Installing a stinger flattened the water cone shape...

... Abstract This paper set up a mathematical model of three-dimensional transient flow to describe the pressure behavior for horizontal well with wellbore storage and skin effect in naturally fractured infinite and box-shape-bounded reservoirs. On the basis of obtaining solutions of mathematical...

..., and the process of air injection involved a producer well arrangement, such that the combustion front propagation and hence displacement of oil occurred in a toe-to-heel manner. This is called the ‘Toe-to-Heel’ - Horizontal Wells Process (THHW). Five experiments were conducted, using two base homogeneous...

... Abstract A mathematical model is presented to evaluate pressure response of a horizontal well in bounded homogeneous and naturals fractured reservoirs. The model also used to understand the pressure behavior of a horizontal well in an infinite acting, one, two or three sealing faults...

... 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...

... Abstract Stable oil production and water control are necessary long term strategies in the world oil fields, and they require more finding each year. Presently, reservoir of bottom water and gas cap development results with horizontal wells are considered satisfactory, but bottom water and gas...

... Abstract A newly developed mathematical model has been used for formation damage analyses of two hydraulically fractured horizontal wells in the Daqing field, China, and twelve vertical wells in the naturally fractured reservoirs of the Spraberry Trend Area, West Texas. Application...

... Abstract Marcy recent projects have demonstrated that the injection of steam into horizontal wells can recover significant quantities of heavy oil at economic rates. A variety of reservoir/wellbore processes have been utilized, including dual well SAGD, single well SAGD, cyclic steam...

... Abstract While heavy oils can be produced by horizontal wells at economic rates, the extent of recovery is small because of loss of drive and/or watering out of the production. In typical cases a recovery of only a few percent of the OOIP is achievable. SAGD overcomes these problems...

... Abstract In the present paper 3D analytical simulator for modeling horizontal well (HW) and slanting well (SW) performance is presented. Hydrodynamic characteristics of the development process are treated in terms of Newton's and heat potentials, and the developed simulators provide...

... Abstract The using of horizontal wells is an effective exploitation way for naturally fractured reservoirs. In accordance with horizontal wells in a naturally fractured volcanic reservoir, the characteristics of damages from drilling, completion and natural blockages are discussed and the aim...