Achievement of Maximum Mud Weights in WBM with Micromax/Barite Blend and its Successful Implementation in Deep HPHT Challenging Environment

Sindi, Rami; Pino, Rafael; Gad-Alla, Ahmed E; Sharma, Sunil K.

doi:10.2118/197594-ms

Cited by 3 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Все это негативно влияет на конечную нефтеотдачу и экономическую целесообразность разработки данного проекта. Барит уменьшает выгоду проектов и вследствие своей высокой цены [28,35,36].…”

Section: обоснование необходимости изучения и применения утяжеленных безбаритных буровых растворовunclassified

Research of Bare-Free Drilling Fluids

Leusheva

Л²,

Alikhanov

et al. 2021

Недропользование

View full text Add to dashboard Cite

Mining and geological conditions for the development of new fields are becoming more difficult every year. Accordingly, the requirements for ensuring the environmental and technological safety of the drilling process are becoming more and more important. To ensure such a process, it is necessary to use correctly selected drilling fluids with proper characteristics: rheological parameters sufficient for effective cleaning of the well bottom, density sufficient to create back pressure, fluid loss to ensure a high-quality filter cake. Modern environmental requirements dictate the abandonment of hydrocarbon-based solutions. But when using water-based solutions, there are no suitable solutions, especially with their high density, since the use of barite can lead to a decrease in reservoir productivity. In this regard, the analysis of the problem and the search for options for creating water-based drilling fluids, weighted without the addition of barite, having the properties of maintaining the stability of the wellbore, ensuring safe drilling and opening productive formations without damaging the reservoir characteristics, was carried out. Such a solution was found in changing the base of the drilling fluid - highly mineralized fluids or solutions based on saturated brines. Brines must be created on the basis of inorganic salts that have good solubility, for example, chlorides, bromides. Due to the content of salts, the fluids have an inhibitory effect, and depending on the volume of dissolution, the density of the drilling fluids can be controlled. The scientific works of foreign and domestic scientists analyzed in the article have been published over the past five years, which indicates the relevance of this development. The selected compositions are presented and theoretically investigated, which were also tested in the field conditions.

show abstract

Section: обоснование необходимости изучения и применения утяжеленных безбаритных буровых растворовunclassified

Research of Bare-Free Drilling Fluids

Leusheva

Л²,

Alikhanov

et al. 2021

Недропользование

View full text Add to dashboard Cite

show abstract

“…(2) Replacing barite with a new weighting agent that is heavier than barite, more stable at high temperature, and can address the ECD challenges at reasonable cost [114]. However, the replacement of barite must be properly considered to avoid unnecessary drilling related problems such as abrasiveness (e.g., may be caused by hematite) or creating much higher tendency of sag [115].…”

Section: Weighting Agentsmentioning

confidence: 99%

Nanomaterial-Based Drilling Fluids for Exploitation of Unconventional Reservoirs: A Review

et al. 2020

View full text Add to dashboard Cite

The world’s energy demand is steadily increasing where it has now become difficult for conventional hydrocarbon reservoir to meet levels of demand. Therefore, oil and gas companies are seeking novel ways to exploit and unlock the potential of unconventional resources. These resources include tight gas reservoirs, tight sandstone oil, oil and gas shales reservoirs, and high pressure high temperature (HPHT) wells. Drilling of HPHT wells and shale reservoirs has become more widespread in the global petroleum and natural gas industry. There is a current need to extend robust techniques beyond costly drilling and completion jobs, with the potential for exponential expansion. Drilling fluids and their additives are being customized in order to cater for HPHT well drilling issues. Certain conventional additives, e.g., filtrate loss additives, viscosifier additives, shale inhibitor, and shale stabilizer additives are not suitable in the HPHT environment, where they are consequently inappropriate for shale drilling. A better understanding of the selection of drilling fluids and additives for hydrocarbon water-sensitive reservoirs within HPHT environments can be achieved by identifying the challenges in conventional drilling fluids technology and their replacement with eco-friendly, cheaper, and multi-functional valuable products. In this regard, several laboratory-scale literatures have reported that nanomaterial has improved the properties of drilling fluids in the HPHT environment. This review critically evaluates nanomaterial utilization for improvement of rheological properties, filtrate loss, viscosity, and clay- and shale-inhibition at increasing temperature and pressures during the exploitation of hydrocarbons. The performance and potential of nanomaterials, which influence the nature of drilling fluid and its multi-benefits, is rarely reviewed in technical literature of water-based drilling fluid systems. Moreover, this review presented case studies of two HPHT fields and one HPHT basin, and compared their drilling fluid program for optimum selection of drilling fluid in HPHT environment.

show abstract

High Specific Gravity, Ultrafine Particle Size and Acid Soluble Manganese Tetra Oxide Succeeds in Replacing Heavy Brines as Completion and Workover Fluid

Barrasi

Hale

Ali

et al. 2023

Day 2 Thu, March 02, 2023

View full text Add to dashboard Cite

Objectives/Scope A high-density completion and workover fluid (18-20 ppg) was required for deep high-pressure gas wells. The traditional clear completion brines, which provide a solids-free environment to run and set downhole completion equipment were evaluated and were not approved as they came with an expensive price tag and, more importantly, they came with serious health, safety, and environmental concerns in addition to formation damage concerns. The available alternative barite weighed water-based mud (WBM) was used as completion fluid to set lower completion; however, due to the concentration and size of the solids contained in this system, serious issues became evident. These included leaks due to poor sealing, string plugging, and stuck completions due to barite settlement issues. Manganese tetroxide (Mn3O4) was evaluated as an alternative to barite as it has higher specific gravity and a much smaller particle size. Methods, Procedures, Process To overcome all limitations of brines and barite WBM, and achieve the required density for well control purposes, to address this issue, rigorous lab work was performed to formulate a completion and workover fluid with viscous sodium chloride brine. Additional density was achieved with manganese tetroxide (Mn3O4). Results, Observations, Conclusions Manganese tetroxide has a very low SAG index due to its ultrafine particle size. The small size of manganese tetroxide (Mn3O4) eliminated the solids sag and settlement issues that were associated with barite weighed fluid and allowed for longer static fluid periods without the need to interrupt operations to circulate and condition the fluid saving significant time lost on sorting out all barite sagging related issues in previous completion and workover operations. Novel/Additive Information This paper presents laboratory design data and comparative data where this type of high-density fluid is used to successfully run lower completions and perform successful workover operations in gas wells without any problems.

show abstract

Achievement of Maximum Mud Weights in WBM with Micromax/Barite Blend and its Successful Implementation in Deep HPHT Challenging Environment

Cited by 3 publications

References 2 publications

Research of Bare-Free Drilling Fluids

Research of Bare-Free Drilling Fluids

Nanomaterial-Based Drilling Fluids for Exploitation of Unconventional Reservoirs: A Review

High Specific Gravity, Ultrafine Particle Size and Acid Soluble Manganese Tetra Oxide Succeeds in Replacing Heavy Brines as Completion and Workover Fluid

Contact Info

Product

Resources

About