Cementing Deepwater, Low-Temperature Gulf of Mexico Formations Prone to Shallow Flows

O'Leary, Jim; Flores, Juan Carlos; Rubinstein, Paulo; Garrison, Greg

doi:10.2118/87161-ms

Cited by 10 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The required hydraulic and mechanical properties are often difficult to achieve under these conditions. Additionally, the cement system must meet logistical, economic and environmental requirements (O'Leary et al 2004).…”

Section: Cement Slurry Properties For Deepwater Shallow Hazards Mitigmentioning

confidence: 99%

Overcoming Shallow Hazards in Deepwater Malikai Batch-Set Top-Hole Sections with Engineered Trimodal Particle-Size Distribution Cement

Goenawan

Gonçalves

Dooply

et al. 2016

Day 3 Thu, March 24, 2016

View full text Add to dashboard Cite

The well construction strategy for the Deepwater Malikai project, Malaysia, included 36-in. structural pipe jetting and 13 5/8-in. surface casing riserless cementing for top-hole sections with the objective for further development of lower sections with tension leg platform (TLP). Cementing of the 17 ½-in. surface hole mainly dominated by shale formation and penetrating multiple shallow faults required isolating shallow gas sands by bringing top of cement to the seabed, thus meeting the well integrity requirement stipulated by the Malaysian Petroleum Management (MPM).The cement slurry design for the 13 5/8-in. casing with riserless mud recovery system includes selection of lightweight trimodal particle-size distribution cement blend optimized with a gas migration control agent and low-temperature dispersant. This mitigates dynamic losses in unconsolidated formations and faults having narrow margins between pore and fracture pressures. Cement slurry achieves faster compressive strength and static gel strength development at lower seabed temperature, preventing casing subsidence and providing good shoe strength. The cement job design respects density and friction pressure hierarchies, providing flat fluid interfaces between successive fluids pumped, combined with optimal casing standoff and displacement efficiency ensuring effective mud removal in highly deviated largeannulus top-holes. This paper will discuss the extensive laboratory testing employed to qualify the engineered trimodal lightweight cement slurry design and effective mud removal strategy fit for the applications on the seven batch-set top-hole sections, achieving zonal isolation requirement.

show abstract

Section: Cement Slurry Properties For Deepwater Shallow Hazards Mitigmentioning

confidence: 99%

Overcoming Shallow Hazards in Deepwater Malikai Batch-Set Top-Hole Sections with Engineered Trimodal Particle-Size Distribution Cement

Goenawan

Gonçalves

Dooply

et al. 2016

Day 3 Thu, March 24, 2016

View full text Add to dashboard Cite

show abstract

“…Many deepwater cement systems have been developed; they can be classified as high-alumina cement system (Brothers and Palmer 2001), fast-setting gypsum cement (Carre et al 2002), particlesize-distribution cement system with Class G cement and microfine cement ), and mixed system of Class G cement (or Class H) and accelerator (Mohammedi et al 2001;O'Leary et al 2004). The high-alumina cement can achieve rapid strength development under low temperatures, but is incompatible with many cement additives.…”

Section: Design Of Deepwater Cement and Its Additivesmentioning

confidence: 99%

“…To minimize their impact on water/gas migration, excessive fl uid loss must be maintained at low levels approximately between 20 and 50 mL/30 min and free fl uid is not allowed (O'Leary et al 2004). The newly developed deepwater cement slurries do not contain free fl uid and maintain API fl uid loss less than 45 mL/30 min.…”

Section: Fluid-loss and Free-fluid Controlmentioning

confidence: 99%

Design and Performance Evaluation of a Unique Deepwater Cement Slurry

Wang

et al. 2011

SPE Drilling &Amp; Completion

View full text Add to dashboard Cite

The exploration and development of deepwater hydrocarbon resources necessitate the fast evolution of drilling and completion technologies for deepwater wells. To drill and complete deepwater wells successfully, sophisticated technologies need to be developed to solve various problems arising from low temperature, weak formations, shallow water/gas flow, environmental protection, and high deepwater rig rate.It is a challenge to develop a good cement slurry that can be used successfully for deepwater wells under low-temperature environment. Such cement slurry should have several distinct properties, such as a short thickening time, a fast transition from liquid to solid, a rapid development of compressive strength, and environmental friendliness. It usually takes a long time for conventional cement slurry to set and only limited compressive strength can be achieved at low temperatures. In addition, most additives used for the conventional cement have adverse effects on the environment. Therefore, it is of upmost importance to design an environmentally friendly and low-density cement slurry that is appropriate for deepwater wells.In this paper, a new deepwater cement [sulfur polymer cement (SP-C)] was designed and tested for the first time. This new deepwater cement combines the advantages of the sulfoaluminate cement and Class G oilwell cement. Green cement additives including cement dispersant, fluid-loss-control agent, and accelerator were also developed. Consequently, a unique low-density cement slurry was obtained for deepwater-well applications. Laboratory tests showed that the low-density slurry exhibited favorable properties including the nonexistence of free fluid, an excellent fluid-loss-control capability, a short waiting-on-cement time at low temperatures, and a shortened transition time of critical gel strength. This new cement slurry can be easily prepared and applied in deepwater wells without adverse impacts on the marine environment.

show abstract

Experiment and simulation on the integrity of cement ring interface in deep water shallow formation

Tian

Guo

et al. 2020

Journal of Petroleum Science and Engineering

View full text Add to dashboard Cite

Cementing Deepwater, Low-Temperature Gulf of Mexico Formations Prone to Shallow Flows

Cited by 10 publications

References 0 publications

Overcoming Shallow Hazards in Deepwater Malikai Batch-Set Top-Hole Sections with Engineered Trimodal Particle-Size Distribution Cement

Overcoming Shallow Hazards in Deepwater Malikai Batch-Set Top-Hole Sections with Engineered Trimodal Particle-Size Distribution Cement

Design and Performance Evaluation of a Unique Deepwater Cement Slurry

Experiment and simulation on the integrity of cement ring interface in deep water shallow formation

Contact Info

Product

Resources

About