CBM foam drilling fluid based on hydrophilic silica nanoparticles

Li, Zhiyong; Yu, Zhou; Qu, Long; Li, Huaike; Huang, Ti-Long

doi:10.1080/10916466.2022.2046608

Cited by 4 publications

(3 citation statements)

References 28 publications

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“…Defoamer GS can inhibit the foaming of the solution and improve the effect of unlocking water. These three surfactants provide a synergistic effect to unlock the water [25,36] .…”

Section: Category Preferencementioning

confidence: 99%

“…In particular, the penetrant itself has a fixation effect, so as to orient the hydrophilic and lipophilic groups on the water surface and further reduce the surface tension. However, too low a surface tension in the drilling fluid filtrate can lead to foaming [25,26] . Therefore, a certain amount of defoamer must be added to maintain the stability of the drilling fluid [25] .…”

Section: Introductionmentioning

confidence: 99%

“…However, too low a surface tension in the drilling fluid filtrate can lead to foaming [25,26] . Therefore, a certain amount of defoamer must be added to maintain the stability of the drilling fluid [25] .…”

Section: Introductionmentioning

confidence: 99%

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Research and Application of New Anti-CO2 Pollution and Low Damage Water-based Drilling Fluid

Bai,

Xie,

Cheng

et al. 2023

Preprint

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CO2 intrusion into the drilling fluid during bauxite drilling can cause hydration swelling and dispersion of clays and lead to massive foaming of them. Additionally, the formation develops micro-nano fractures, which also have a large difference in compressive strength and a high percentage of bound water. Once the foreign fluid invades, it will lead to wellbore destabilization and reservoir damage. Thus, the designed drilling fluid formulation does not contain solid phase particles such as bentonite. And we obtained the optimal proportion of hydrolocker, penetrant, and defoamer by Mixture Designs. Then the shielding plugging theory was introduced, and a temporary plugging gradation consisting of acid-soluble inert particles, deformable nano-sealers, and non-permeable sealers was constructed with the aid of BridgePro software. And other surfactants were optimized indoors to build a lowdamage, strong anti-CO 2 pollution water-based drilling fluid. It could resist the high temperature of 150℃ and has a remarkable ability to lower surface tension (17.3mN). The rolling recovery, the plugging rate, and permeability recovery value can reach more than 90%, the lubrication coefficient was around 0.125. The constructed drilling fluid completed 9 wells in field application, with an obvious reservoir protection effect and an average increase of more than 20% in single-well daily production compared to the expected daily production. It will be an important reference for future bauxite horizontal well drilling fluids to prevent CO2 contamination and reduce reservoir damage.

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“…Defoamer GS can inhibit the foaming of the solution and improve the effect of unlocking water. These three surfactants provide a synergistic effect to unlock the water [25,36] .…”

Section: Category Preferencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Research and Application of New Anti-CO2 Pollution and Low Damage Water-based Drilling Fluid

Bai,

Xie,

Cheng

et al. 2023

Preprint

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Review of underbalanced drilling techniques highlighting the advancement of foamed drilling fluids

Al-Darweesh

Aljawad

Ramadan

et al. 2022

J Petrol Explor Prod Technol

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Overbalanced drilling is the most common drilling technique; nevertheless, it has several disadvantages such as formation damage, mud losses, and stuck pipes; challenges that are common in high permeability zones and highly fractured formations. To overcome those issues, the underbalanced drilling method could be implemented. The underbalanced drilling (UBD) technique is widely utilized in hard, under pressure, depleted, and fractured/vuggy formations. Low-density drilling fluids are usually used in UBD operations and could be categorized into a gas (i.e., air, nitrogen, and natural gas) or two-phase (i.e., mist and foam). Although foamed fluid attracted attention in enhanced oil recovery and hydraulic fracturing operations, it is ideal for UBD operations due to its low density and efficient transport capacity. This paper highlights the applications, limitations, advantages, and disadvantages of UBD operations. It also discusses the drilling foam chemistry, structure, characterization, and rheological properties. Finally, this paper highlights a few successful UBD operations utilizing foamed drilling fluids worldwide.

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Drilling and completion technologies of coalbed methane exploitation: an overview

Liu

et al. 2022

Int J Coal Sci Technol

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Coalbed methane (CBM) drilling and completion technologies (DCTs) are significant basis for achieving efficient CBM exploration and exploitation. Characteristics of CBM reservoirs vary in different regions around the world, thereby, it is crucial to develop, select and apply the optimum DCTs for each different CBM reservoir. This paper firstly reviews the development history of CBM DCTs throughout worldwide and clarifies its overall development tendency. Secondly, different well types and its characteristics of CBM exploitation are summarized, and main application scopes of these well types are also discussed. Then, the key technologies of CBM drilling (directional drilling tools, measurement while drilling, geo-steering drilling, magnetic guidance drilling, underbalanced drilling and drilling fluids), and the key technologies of CBM completion (open-hole, cavity and under-ream completion, cased-hole completion, screen pipe completion and horizontal well completion) are summarized and analyzed, it is found that safe, economic and efficient development of CBM is inseparable from the support of advanced technologies. Finally, based on the current status of CBM development, the achievements, existing challenges and future prospects are summarized and discussed from the perspective of CBM DCTs.

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CBM foam drilling fluid based on hydrophilic silica nanoparticles

Cited by 4 publications

References 28 publications

Research and Application of New Anti-CO2 Pollution and Low Damage Water-based Drilling Fluid

Research and Application of New Anti-CO2 Pollution and Low Damage Water-based Drilling Fluid

Review of underbalanced drilling techniques highlighting the advancement of foamed drilling fluids

Drilling and completion technologies of coalbed methane exploitation: an overview

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