Water Production Management - PDO's Successful Application of Expandable 
Technology

Braas, J.C.M.; Aihevba, C.O.; Shandoodi, M.; Noort, R.H.; Baaijens, M.N.

doi:10.2523/81489-ms

Cited by 9 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 Results from both production and water injection wells have shown significant production increase and management of the water injection profile.…”

Section: Achieving Zonal Isolation In Depleted Highly Fractured Carbomentioning

confidence: 99%

Solid Expandable Tubulars Slim Well Design and Isolate Zones for Brownfield Redevelopment in Oman

Morrison

Leuranguer

Sanders³

2005

All Days

View full text Add to dashboard Cite

fax 01-972-952-9435. AbstractThe Fahud water flood project is a major brownfield redevelopment project and a key component to PDO's future production plan. Key value drivers for the successful project delivery are selecting the right recovery mechanisms for the target reservoirs and achieving low-cost well delivery through standardization and technological innovations.The pilot program, which consists of drilling 39 vertical wells in PDO's Fahud field, commenced in April 2004 to gather data on four Natih target reservoirs. The data will be used to identify applicable recovery mechanisms for future field development. The recovery methods under review include the following: • Water flood • Gas-oil gravity drainage (GOGD) • Combination GOGD and water flood • Combination GOGD and depletion • Combination GOGD and gas flood Natih is a stacked layered reservoir. Natih A and C were developed by water floods in 1972-1980. These wells were unsuccessful due to early water breakthrough through fractures and karst parts of the reservoir. From 1984 to 1998 certain reservoir sections were developed by GOGD with 200+ development wells drilled. Since 1997, water flooding has been used to produce different zones in the Natih reservoir. Most of the drilling during this time consisted of horizontal wells with single or dual laterals.Although horizontal wells, in particular dual-lateral wells, provide excellent area data coverage, they also • Provide ambiguous production data from single zones.• Do not allow observation of reservoir behaviour in overand underlying zones. • Are costly to enter (hoist/coiled tubing).• Present a challenge to manage flow profiles.These issues led to the consideration of implementing alternative well designs. This paper will discuss the well planning, wellbore preparation and successful application of solid expandable tubular technology. These systems, combined with swelling elastomers, slim the well design and provide reliable isolation of the Natih sub-units to allow independent testing of the zones. The paper also presents the completion design planned for the test program and long term production.

show abstract

“…1 Results from both production and water injection wells have shown significant production increase and management of the water injection profile.…”

Section: Achieving Zonal Isolation In Depleted Highly Fractured Carbomentioning

confidence: 99%

Solid Expandable Tubulars Slim Well Design and Isolate Zones for Brownfield Redevelopment in Oman

Morrison

Leuranguer

Sanders³

2005

All Days

View full text Add to dashboard Cite

show abstract

“…Dupal et al [7] reviewed the evolutionary steps taken to date toward the realization of true mono-diameter technology and discussed the installations that had served as milestones. Brass et al [8] have reported the most recent successful application of using solid expandable tubular to shut off the water producing zones. SET with seals was used at various wells to isolate water producing fractures.…”

Section: Introductionmentioning

confidence: 99%

Solid Tubular Expansion in Horizontal Wells

Pervez

Seibi

Al-Hiddabi³

et al. 2007

Proceedings of SPE Middle East Oil and Gas Show and Conference

View full text Add to dashboard Cite

TX 75083-3836, U.S.A., fax 01-972-952-9435. AbstractThe expansion process subjects a solid tubular to large plastic deformations leading to variations in tubular thickness and length, which may result in premature and unexpected failures under normal operations. Simulation work, laboratory tests, and field trials proved the viability of tubular expansion downhole and field engineers have gained enough knowledge in handling this process. However, tubular expansion in open hole of horizontal sections still presents another challenge to researchers and field engineers due to gravity and drag between the seal and the formation. The present work, therefore, presents simulation results of tubular expansion under various field conditions. In this study a typical tubular size of 57.15 mm outer diameter and 6.35 mm wall thickness is used with two different elastomer seals, 5 mm and 7 mm thick placed at equal spacing of 20 cm. It is found that the drawing force increases as the mandrel angle, expansion ratio, and friction coefficient increase. A typical expansion simulation showed that the drawing force required for expansion using a rotating mandrel is 15% less than that of non-rotating mandrel having same configuration. However, tubular thickness reduction is found to increase by 47% for a rotating mandrel as compared to a non-rotating one, which may affect the post-expansion tubular performance. The tubular wall thickness decreases as the mandrel angle, expansion ratio, and friction coefficient increase.

show abstract

Evaluating Expandable Tubular Zonal And Swelling Elastomer Isolation Using Wireline Ultrasonic Measurements

Heröld

Marketz²,

Froelich

et al. 2006

IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition

View full text Add to dashboard Cite

New completion techniques using expandable casing with swelling elastomers to seal the annulus, or just swelling elastomers used as packers are becoming available. Diagnostic services are required for these new completions such as evaluation of the annular seal, analogous to cement evaluation. Both conventional and new generation Wireline ultrasonic measurements have been used to characterize and possibly evaluate zonal isolation using swellable elastomers. So far, the following 360 degs circumferential measurements were studied: Ultrasonic radii, acoustic impedance (AI), as well as attenuation and third interface Echo (TIE) reflections from flexural wave data. Radii measurements show a "springback" effect, indicating that expansion against the formation has been achieved. Flexural attenuation has a much better dynamic range over the elastomer sections compared to the acoustic impedance measurements. Both measurements do not consistently distinguish rubber-backed casing with ordinary casing in our examples. The TIE from the latest generation imaging tool tracking the external rubber interface, may provide the measurement the industry needs. First results look promising and further experiments to characterize the tool response are ongoing. The casing geometry of expanded liners was also studied. Introduction The introduction of expandable metal technology and new "smart" materials like swelling elastomers will provide more options for well construction and completion:New techniques in zonal isolation are now possible for over - underpressured, fractured zones and zones with fluid losses [1], [2],Allowing monobore well design [3],Production of selected zones will be made easier, like selective perforation, completion, and stimulation [4],Multilateral junction sealing will be made easier. The effectiveness of zonal isolation and long-term well integrity for this new technology needs to be evaluated and proven. " Smart Material" - Swelling Elastomers Swelling elastomers are now offered by several service companies and have been used by operators for a variety of applications: As a means to establish zonal isolation in liner completions where conventionally a cement column would be used [5], as a production separation packer (swelling packers are used to replace conventional hydraulically or mechanically set packers) [6], and as an integral part of an expandable open hole clad [1]. By incorporating filler materials into an elastomeric matrix the material reacts or swells with time if in contact with water, depending on the elastomer and the requirements [7]. A water swellable elastomer swells through the absorption of (saline) water (osmosis process). An oil swellable elastomer swells primarily through the absorption of hydrocarbons (diffusion process). The typical swelling ratio is about 1.75 to 2.5 and swelling pressures are up to 150 bar. Swelling time is from 5–100 days depending on produced water salinity, temperature and oil viscosity and composition. The longevity of swelling elastomers still has to be quantified.

show abstract

Water Production Management - PDO's Successful Application of Expandable Technology

Cited by 9 publications

References 2 publications

Solid Expandable Tubulars Slim Well Design and Isolate Zones for Brownfield Redevelopment in Oman

Solid Expandable Tubulars Slim Well Design and Isolate Zones for Brownfield Redevelopment in Oman

Solid Tubular Expansion in Horizontal Wells

Evaluating Expandable Tubular Zonal And Swelling Elastomer Isolation Using Wireline Ultrasonic Measurements

Contact Info

Product

Resources

About