The completion of horizontal wells can be done by different ways and depends on production constraints and the reservoir characteristics.The selection of a completon method is directly influenced by the degree of rock consolidation, the need for water or gas the The completion of horizontal wells can be done by different ways and depends on production constraints and the reservoir characteristics.The selection of a completon method is directly influenced by the degree of rock consolidation, the need for water or gas the

Nearwell Simulation of a horizontal well in Atlanta Field in Brazil with AICV completion

Horizontal wells are commonly used to increase the production in reservoirs with thin oil column and for reservoirs with water and/or gas cap drive (Ahmed, 2006). By using horizontal wells in these cases, breakthrough of water and/or gas will be delayed

Figure 3: Permian Basin production by vertical and horizontal wells (b/d) Source: PetroNerds, DrillingInfo. Texas Permian Basin wells are averaging a 92 b/d increase in initial production rates year-on-year, a gain of nearly 20 per cent. The production curve has

Horizontal wells have been widely used in the industry for the last 10 years. In this time drilling and completion techniques have evolved from simple barefoot completions to more complex completions utilizing downhole sand exclusion. This paper will present key learnings from design, execution and evaluation of a wide range of horizontal wells completed with and without downhole sand control

2016/9/12Horizontal wells generally follow an up or down slope following the most productive rock with some large changes in elevation from the heel—the curve from vertical to horizontal—to the toe. Results from modeling did not settle the matter. Recently,

Fig. 1: Progressive development of a thin-oil-rim reservoir by smart-horizontal-well drilling and completion in phases. Well count vs. estimated ultimate recovery (EUR) shows an optimum of 41 wells as limited by economics. For thin-oil-rim reservoirs, well placement

Well Productivity, Completion Design and CnF Horizontal Wells

horizontal wells located in Weld County, Colorado. We document statistically significant relationships between production and location, the length of the well b ore, TVD, and the amount of sand and water used in a completion, and demonstrate that the use of

2019/3/14In most wells, conventional single perforated casing completions are used; however, multiple, alternate, or slim hole completions may be used under certain conditions. The choice of completion type should be closely coordinated with the development of the

•Wells are constructed from concentric strings of steel casing, cemented in place with a wellhead on top and a completion inside. •Each well is a multi million pound project, North Sea wells are typically designed to last for decades and each well is as unique as

Abstract Horizontal well completion and evaluation techniques have been successfully developed. New technologies addressing well desi~m, formation, cement and production evaluation, and perforating of horizontal wells are being implemented. This paper reviews

2003/12/1Horizontal wells or laterals are completed as openhole, slotted liner, cased and perforated, or gravel pack completions. We have developed a comprehensive skin factor model to predict the performance of any of these completion types, and calibrated this model with extensive finite element simulations of flow for a horizontal well completion.

Introduces the deliverability equation for horizontal wells. Compares horizontal and vertical well performance. Identifies formation characteristics that favor horizontal wells, and discusses methods for their determination. Describes basic well configurations and completion designs. Looks at practical aspects of cementing, zonal isolation, casing design and sand control. Address guidelines

Horizontal wells are an alternative method for drilling for oil and natural gas when vertical wells do not yield enough fuel or are not possible. Drilling at some non-vertical angle can hit targets and stimulate reservoirs in ways that a vertical well cannot. Combined with hydraulic fracturing previously unproductive rocks can be used as sources for natural gas.

ORIGINAL PAPER A new mathematical model for horizontal wells with variable density perforation completion in bottom water reservoirs Dian-Fa Du1 • Yan-Yan Wang2 • Yan-Wu Zhao1 • Pu-Sen Sui3 • Xi Xia1 Received: 11 July 2016/Published online: 12 April 2017

Optimization of horizontal well completion design —

Slotted or perforated liner, cased and perforated completions, or gravel pack completions have been used in horizontal wells for borehole stability and sand control purposes. However, these completions may have lower productivity (as characterized by a positive skin) relative to an equivalent openhole completion because the convergent flow to perforations or slots increases fluid velocity in

2019/3/14In most wells, conventional single perforated casing completions are used; however, multiple, alternate, or slim hole completions may be used under certain conditions. The choice of completion type should be closely coordinated with the development of the

Horizontal wells are an alternative method for drilling for oil and natural gas when vertical wells do not yield enough fuel or are not possible. Drilling at some non-vertical angle can hit targets and stimulate reservoirs in ways that a vertical well cannot. Combined with hydraulic fracturing previously unproductive rocks can be used as sources for natural gas.

Completion components The upper completion refers to all components from the bottom of the production tubing upwards. Proper design of this completion string is essential to ensure the well can flow properly given the reservoir conditions and to permit any operations as are deemed necessary for enhancing production and safety.

Slotted or perforated liner, cased and perforated completions, or gravel pack completions have been used in horizontal wells for borehole stability and sand control purposes. However, these completions may have lower productivity (as characterized by a positive skin) relative to an equivalent openhole completion because the convergent flow to perforations or slots increases fluid velocity in

Therefore, the need for drilling more wells is expected. Figure 5: The cumulative gas production, gas flow rate, and pressure distribution for different time steps (1, 5, 10, 20, 30, and 50 years). horizontal well spacing and hydraulic fracturing design optimization.

Recommended horizontal well paths for efficient multistage fracturing completion and reduction of the most probable risks; Frac sleeve placement with provision for the horizontal well path through the section (vertically) to optimize fracture initiation points and maximize reservoir coverage.