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Numerical simulation and experimental study on the
Many sets of gravel packing experiments are carried out using a full-scale horizontal well gravel packing experimental apparatus to validate the improved three-dimensional numerical model. Finally, numerous well schemes are designed and constructed. After comparing the design parameters and treatment parameters of seven …
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Friction calculation and packing effect analysis for gravel …
Gravel packing is one of the most commonly used well-completion methods for controlling sand production in deepwater horizontal gas wells. Both the gravel-packing mechanisms and the technical difficulties of gravel packing in a horizontal well are discussed in this …
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Openhole gravel packing
Wells where cased-hole completions are significantly more expensive (i.e., long horizontal wells). Top set openhole gravel pack. The most common type of openhole completion is referred to as "top set," which is illustrated in Fig. 2. While this figure shows a vertical completion, this discussion is also pertinent to openhole horizontal wells.
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Horizontal Wells: Technology Overview Report
By installing higher conductivity materials such as sand as packing in trenched horizontal wells, preferential flow paths may be created, potentially enhancing remediation at sites with low conductivity materials with soil and/or groundwater contamination (4). Sand packing is not known to be effective
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Working Out of a Tight Spot
average of once for every three wells drilled, cost-ing operators hundreds of millions of dollars per year.1 Approximately 50% of stuck pipe incidents occur during tripping, 20% while reaming and working pipe and 10% while drilling ahead.2 Jarring is the last line of defense against down-time, expensive fishing operations, sidetracking
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The Gravel Packing Length Determination Method and
Horizontal well gravel packing is the most commonly used sand control technology in offshore oil and gas fields. For extreme conditions such as deepwater, low fracture pressure formations, and long horizontal well bore length, targeted and cost-effective measures are required. According to the friction models in different stages of …
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Friction calculation and packing effect analysis for gravel …
siderable risks in gravel-packing operations for horizontal wells, especially in long horizontal wells with low fracture pressure. One of the main risks is the occurrence of pre-mature bridges.1-4 An experimental study on gravel pack-ing in horizontal wells has been conducted since the early 1970s. Gruesbeck5 et al proposed the concept of ...
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AquaPac Openhole Gravel-Pack Service | OHGP | SLB
Plugged Sand Screens Averted in Horizontal Well Through 124% Gravel-Pack Efficiency at –51 degF. ... Open hole gravel packing of reservoir sections drilled with oil based fluid is traditionally performed with an aqueous carrier fluid. This typically involves displacing oil based fluid to aqueous fluid once the gravel pack screen is in place.
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Optimization and Analysis of Gravel Packing Parameters in Horizontal
A virtual horizontal well located at the site SH2, northern South China Sea is involved to optimize packing operation parameters and analyze factors that affect the safety and effectiveness of ...
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Experimental Study on Stimulation of Horizontal Wells Filled with …
The gravel packing of horizontal wells in deep-sea gas reservoirs has a high-intensity filling and compaction effects under the special working conditions. It is necessary to conduct relevant mechanical tests to determine whether the packing-resistance strength of film-coated gravel surface coating is reliable. A particle strength …
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Slotted liners and wire wrapped screens
Slot or screen gauge is simply the width of the opening in inches multiplied by 1,000. For instance, a 12-gauge screen has openings of 0.012 in. Fig. 2—Slotted-liner geometries (courtesy of Baker Oil Tools). The machining consists of cutting rectangular openings with small rotary saws. Routine slot widths are 0.030 in. or larger.
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Sand control in horizontal and deviated wells
Horizontal gravel packing. Gravel packing offers another option for completing a horizontal well when sand production represents a problem. The original perception was that technology was not available for gravel packing long, horizontal completions, and other alternatives, such as stand-alone screens, had to suffice.
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GRAVEL PACKING FEASIBLE IN HORIZONTAL WELL COMPLETIONS
Well A (Fig. 3a) was completed with a 153-m (502 ft) long, under-reamed 280-mm (11 in.) well bore at 78 from vertical. The well bore was under-reamed with a xanthanderivative polymer brine.
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Hydraulic fracturing
Enhance gravel-packing sand placement; ... In many cases, especially for low-permeability formations, damaged reservoirs, or horizontal wells in a layered reservoir, the well would be uneconomical unless a successful hydraulic fracture treatment is designed and pumped. The engineer in charge of the economic success of such a well must …
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(PDF) Simulation and application analysis of gravel packing in
contradiction of gravel packing in deepwater horizontal wells. and achieve high quality and effective packing has become a. key technical problem for e ffective offshore oil and gas.
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A review of the research status and development …
The horizontal well gravel packing technique has the benefits of maintaining high oil well yield, wellbore stability, and avoiding sand production for a long period. Gravel …
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Gravel packing: How does it work?
Gravel packing, the industry's preferred sand control packing, the industry's preferred sand control method for vertical and deviated wells, has rarely been used in horizontal wells.
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Factors Affecting Horizontal Well Gravel Pack Efficiency
Ojo et al. [22, 23] established a three-dimensional mathematical model of gravel packing in horizontal wells under the influence of multiple factors and predicted the balanced height of sand bed ...
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Gravel Packing Long Horizontal Wells With Low Fracture …
This article, written by Assistant Technology Editor Karen Bybee, contains highlights of paper SPE 96396, "The Dynamic Bottomhole Pressure Management: A Necessity to Gravel Packing Long Horizontal Wells With Low Fracture Gradients," by Z. Chen, SPE, and R.J. Novotny, SPE, BJ Services Co., prepared for the 2005 SPE Annual …
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COMPLETION TECHNOLOGY: Simultaneous gravel pack/clean …
The case study that follows, which demonstrates the advantages of simultaneously gravel packing and cleaning up a horizontal well section, takes advantage of several leading-edge technologies. Shunt-style, shrouded gravel pack screen; Single carrier/breaker fluid that carries the gravel into the annulus and breaks the filter cake.
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Sand control in horizontal and deviated wells
Horizontal gravel packing. Gravel packing offers another option for completing a horizontal well when sand production represents a problem. The …
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Friction calculation and packing effect analysis for gravel packing …
The factors affecting the gravel-packing effect of long horizontal wells will be comprehensively analyzed based on the geological settings of a long horizontal well located in the northern South China Sea. The results can provide technical support for the implementation of gravel packing in long-reach horizontal wells.
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A review of the research status and development prospects for …
The horizontal well gravel packing technique has the benefits of maintaining high oil well yield, wellbore stability, and avoiding sand production for a long period. Gravel packing is the preferred horizontal well completion method, especially for reservoirs that are loose and sand-prone. Engineers first applied gravel packing technology in ...
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Horizontal Well Gravel Packing: Dynamic Alpha Wave Dune …
Abstract. Gravel packing long horizontal wells presents many challenges to completion operations. The accurate calculation of Alpha wave dune height under dynamic wellbore conditions is on the top of the list. Alpha wave dune height is critical during job planning and the afterward successful gravel placement execution. Excessive Alpha …
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Ultralightweight Proppants: An Effective Approach To Address
ProppantULW-1.25 has proved to be effective for packing wells with narrow sections through the openhole interval, frequently found in horizontal wells completed through shale zones that are isolated by reactive packers and/or mechanical external casing packers. ULW-1.75 was introduced in Brazil in 2007 and has largely replaced ULW-1.25 …
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Numerical Simulation of Pulsed Gravel Packing Completion in Horizontal
The gravel packing completion method for horizontal wells has the advantages of maintaining high oil production for a long time, maintaining wellbore stability, and preventing sand production, so it has become the preferred completion method for horizontal wells. At present, this technology still faces the problems of high sand bed …
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The Gravel Packing Length Determination Method and
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The Gravel Packing Length Determination Method and
Horizontal well gravel packing is the most commonly used sand control technology in offshore oil and gas fields. For extreme conditions such as deepwater, low fracture pressure formations,...
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Horizontal Well Gravel Packing: Dynamic Alpha Wave Dune …
Horizontal well gravel-packing operations are known to exhibit a higher rate of premature screenout. The suggested causes of such failure range from extreme reservoir conditions (e.g., low in-situ ...
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Alternate Path Technology
ogy for applications in frac-packing and horizontal wells. Improvements include: Tungsten-carbide-lined exit ports to handle the large quantities of sand placed in horizontal wells or when frac-packing. Seamless shunt tubes which can handle 5,000 psi differ-ential pressure or more, as compared to about 2,000 psi with welded tubes.
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