Damage-control technology of oil-based drilling fluid for Kuqa piedmont structure

Xu, Peng; Tao, Zhengwu; Xiao, Liu; Yan, Zhihang; Xu, Mengque

doi:10.1080/12269328.2017.1340194

Cited by 3 publications

(5 citation statements)

References 6 publications

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“…Therefore, reducing the intrusion of the oil-based drilling fluid is the key for damage control, while the most direct and the most efficient way to reduce the intrusion is to control the quality of the mud cake. There are two patterns to reduce the intrusion of the fluid and particles: extremely short formation time of the mud cake and extremely low permeability of the mud cake [6]. …”

Section: Discussionmentioning

confidence: 99%

“…Consequently, the permeability is not easy to recover after the drilling is finished. In studying damage control of a drilling fluid with high density, the key is the control of mud cake quality and the recovery rate of permeability [6]. To control mud cake quality is to make sure that the solid-phase particles can form into a dense mud cake, and to keep a high recovery rate of permeability is to make sure that the particles in the oil-based drilling fluid can efficiently flow back [3].…”

Section: Introductionmentioning

confidence: 99%

“…However, the high density can cause a series of problems such as high solid content, high viscosity and high friction coefficient [3,4]. Nowadays, keeping good rheology of the oil-based drilling fluid and reducing the reservoir damage have been increasingly concerned in drilling projects [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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Rheological properties and damage-control mechanism of oil-based drilling fluid with different types of weighting agents

Tao

et al. 2018

R. Soc. open sci.

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The great amount of solid particles contained in a weighting agent is a major cause of the problems in both rheology properties and damage control mechanism of an oil-based drilling fluid (OBM). Therefore, a proper type of weighting agent can be a solution for the application of OBM. In this study, three weighting agents that have been commonly used with OBM, namely, standard barite, submicron barite and superfine manganese ore, are studied. Rheological properties of OBM and the degree of formation damage are assessed with regard to the three weighting agents. The agents are also studied in aspects of particle size, micromorphology, filtration loss and wall-building property, acid dissolution efficiency of mud cake, lubricity and sedimentation stability to analyse the effects of the agents on rheological properties and the degree of damage as well as to figure out the mechanism of rheology control and damage control. For the OBM, there is a mutual effect between rheological stability and the degree of damage. In consideration of the agents' properties, we can enhance the rheological stability of the OBM and control the degree of formation damage by properly selecting particle size, using acid-soluble materials and forming the mud cake with ultra-low permeability that can easily be cleared away.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rheological properties and damage-control mechanism of oil-based drilling fluid with different types of weighting agents

Tao

et al. 2018

R. Soc. open sci.

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“…Бурение предполагает использование средств эрозии/разрушения горных пород и последующего удаления раздробленного материала по ходу бурения, а также стабилизации стенок скважины и герметизации скважины от проникновения нежелательных флюидов. Фрагменты породы непрерывно удаляются с помощью бурового раствора путем его закачивания в бурильную колонну и возвращения на поверхность через пространство между бурильной колонной и стенкой скважины [12][13]. Буровой раствор состоит в основном из смеси воды или другой основы, глины, химикатов и полимерных добавок.…”

Section: нефтехимияunclassified

Features of the Application of Macromolecular Compounds in the Oil Industry

KONDAUROV,

MELNIKOV,

AGIBAYEVA

2023

NiG

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The paper discusses the features of the use of polymer materials in the oil industry. Research on polymer synthesis and their corresponding characterization is aimed at developing fundamentally new molecules with controlled structure for various applications with the following goals: increasing operational efficiency; reduce costs; study the mechanisms of action of molecules that can help in the development of new technologies in the near future.

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“…From the point of view of the formation mechanism of OBDF damage, OBDF causes damage to fractured tight sandstone gas reservoirs due to its rheological properties, changes in rock properties, and multiphase flow characteristics. However, based on the formation mechanism, the damage control process must provide an accurate description of the damage characteristics of OBDF to the fractured tight sandstone gas reservoir and how to achieve an accurate plugging of the reservoir [10,[38][39][40].…”

Section: Research Direction Of Obdf Damage Controlmentioning

confidence: 99%

Damage Mechanism of Oil-Based Drilling Fluid Flow in Seepage Channels for Fractured Tight Sandstone Gas Reservoirs

2019

Geofluids

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Oil-based drilling fluids (OBDFs) have a strong wellbore stabilization effect, but little attention has been paid to the formation damage caused by oil-based drilling fluids based on traditional knowledge, which is a problem that must be solved prior to the application of oil-based drilling fluid. For ultradeep fractured tight sandstone gas reservoirs, the reservoir damage caused by oil-based drilling fluids is worthy of additional research. In this paper, the potential damage factors of oil-based drilling fluids and fractured tight sandstone formations are analyzed theoretically and experimentally. The damage mechanism of oil-based drilling fluids for fractured tight sandstone gas reservoirs is analyzed based on the characteristics of multiphase fluids in seepage channels, the physical and chemical changes of rocks, and the rheological stability of oil-based drilling fluids. Based on the damage mechanism of oil-based drilling fluids, the key problems that must be solved during the damage control of oil-based drilling fluids are analyzed, a detailed description of formation damage characteristics is made, and how to accurately and rapidly form plugging zones is addressed. This research on damage control can provide a reference for solving the damage problems caused by oil-based drilling fluids in fractured tight sandstone gas reservoirs.

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Damage-control technology of oil-based drilling fluid for Kuqa piedmont structure

Cited by 3 publications

References 6 publications

Rheological properties and damage-control mechanism of oil-based drilling fluid with different types of weighting agents

Rheological properties and damage-control mechanism of oil-based drilling fluid with different types of weighting agents

Features of the Application of Macromolecular Compounds in the Oil Industry

Damage Mechanism of Oil-Based Drilling Fluid Flow in Seepage Channels for Fractured Tight Sandstone Gas Reservoirs

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