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公开(公告)号：US20240287375A1
公开(公告)日：2024-08-29
申请号：US18654668
申请日：2024-05-03
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain , Shameed Ashraf
Abstract: The effectiveness of expansive cement systems may be diluted when, during a well cementing operation, commingling takes place between the cement slurry and a spacer fluid, a drilling fluid, or both. Incorporating expansive agents in the spacer fluid or drilling fluid may reduce or negate the loss of expansion at the cement slurry/spacer interface or the cement slurry/drilling fluid interface, thereby promoting zonal isolation throughout the cemented interval.
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公开(公告)号：US20240018408A1
公开(公告)日：2024-01-18
申请号：US18474926
申请日：2023-09-26
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain , Shameed Ashraf
Abstract: The effectiveness of expansive cement systems may be diluted when, during a well cementing operation, commingling takes place between the cement slurry and a spacer fluid, a drilling fluid, or both. Incorporating expansive agents in the spacer fluid or drilling fluid may reduce or negate the loss of expansion at the cement slurry/spacer interface or the cement slurry/drilling fluid interface, thereby promoting zonal isolation throughout the cemented interval.
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公开(公告)号：US20240003222A1
公开(公告)日：2024-01-04
申请号：US18252852
申请日：2021-11-10
Applicant: Schlumberger Technology Corporation
Inventor： Dominic Perroni , Bipin Jain , Anatoly Medvedev , Carlos Abad , Christopher Daeffler
CPC classification number: E21B33/14 , E21B36/008 , C09K8/473 , C09K8/428
Abstract: Methods for shortening the waiting-on-cement (WOC) time during primary and remedial cementing operations are disclosed. A fluid pill is injected into the wellbore that comprises reactants. The reaction is acclerating hydration and shortening the time necessary for the slurry to set and harden.
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公开(公告)号：US20230193108A1
公开(公告)日：2023-06-22
申请号：US17643692
申请日：2021-12-10
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain , Shameed Ashraf
Abstract: The effectiveness of expansive cement systems may be diluted when, during a well cementing operation, commingling takes place between the cement slurry and a spacer fluid, a drilling fluid, or both. Incorporating expansive agents in the spacer fluid or drilling fluid may reduce or negate the loss of expansion at the cement slurry/spacer interface or the cement slurry/drilling fluid interface, thereby promoting zonal isolation throughout the cemented interval.
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公开(公告)号：US20160122620A1
公开(公告)日：2016-05-05
申请号：US14943633
申请日：2015-11-17
Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
Inventor： Diankui Fu , Bipin Jain , Soo Hui Goh
Abstract: Fluids containing surfactants and hydrophobic particles are effective media for cleaning non-aqueous fluids (NAFs) out of a subterranean wellbore. The fibers and surfactants are may be added to a drilling fluid, a spacer fluid, a sacrificial spacer fluid, a chemical wash, a cement slurry or combinations thereof. NAFs, such as an oil-base mud or a water-in-oil emulsion mud, are attracted to the fibers as the treatment fluid circulates in the wellbore.
Abstract translation: 含有表面活性剂和疏水性颗粒的流体是用于从地下井眼清洗非水流体（NAF）的有效介质。 纤维和表面活性剂可以加入到钻井液，间隔液，牺牲隔离液，化学清洗剂，水泥泥浆或其组合中。 当处理液在井眼中循环时，诸如油基泥浆或油包水乳液泥浆的NAF被吸引到纤维上。
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Patent Agency Ranking
公开(公告)号：US20150166870A1
公开(公告)日：2015-06-18
申请号：US14407962
申请日：2013-07-01
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain
CPC classification number: C09K8/426 , C09K8/03 , C09K8/516 , C09K2208/08 , C09K2208/18 , E21B21/003
Abstract: Mixtures of fibers and solid particles are effective for curing fluid losses and lost circulation in a subterranean well. The efficiency of lost-circulation prevention may be further enhanced by incorporating a fluid-loss agent in the mixtures. The fluid-loss agent may reduce the filter-cake permeability and impart higher flexibility to the filter cake, thereby increasing the differential pressure that the filter cake may withstand across the lost-circulation pathways.
Abstract translation: 纤维和固体颗粒的混合物对于固化地下井的流体损失和流失是有效的。 通过在混合物中掺入流体损失剂，可以进一步提高流失预防的效率。 流体损失剂可以降低滤饼渗透性并赋予滤饼更高的灵活性，从而增加滤饼可能经过缺失循环途径承受的差压。
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公开(公告)号：US20250067144A1
公开(公告)日：2025-02-27
申请号：US18943606
申请日：2024-11-11
Applicant: Schlumberger Technology Corporation
Inventor： Dominic Perroni , Bipin Jain , Anatoly Vladimirovich Medvedev , Carlos Abad , Christopher Daeffler
Abstract: Methods for shortening the waiting-on-cement (WOC) time during primary and remedial cementing operations are disclosed. A fluid pill is injected into the wellbore that comprises reactants. The reaction is exothermic and heat is conducted into the cement sheath, thereby accelerating hydration and shortening the time necessary for the slurry to set and harden.
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公开(公告)号：US12139659B2
公开(公告)日：2024-11-12
申请号：US18474926
申请日：2023-09-26
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain , Shameed Ashraf
Abstract: The effectiveness of expansive cement systems may be diluted when, during a well cementing operation, commingling takes place between the cement slurry and a spacer fluid, a drilling fluid, or both. Incorporating expansive agents in the spacer fluid or drilling fluid may reduce or negate the loss of expansion at the cement slurry/spacer interface or the cement slurry/drilling fluid interface, thereby promoting zonal isolation throughout the cemented interval.
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公开(公告)号：US12043791B2
公开(公告)日：2024-07-23
申请号：US18251366
申请日：2020-11-02
Applicant: Schlumberger Technology Corporation
Inventor： Ksenia Mikhailovna Kaprielova , Nikita Yurievich Silko , Bipin Jain , Elena Vladimirovna Danilevich
CPC classification number: C09K8/426 , C09K8/44 , C09K8/512 , C09K8/514 , E21B21/003 , E21B33/138 , C09K2208/08 , E21B2200/08
Abstract: The method of fluid loss control is provided for the case of high-rate fluid loss. Two treatment fluids are provided, where a first treatment fluid comprising a carrier fluid, solids and a first polyelectrolyte, and a second treatment fluid comprising a carrier fluid and a second polyelectrolyte. Two polyelectrolytes in both treatment fluids are oppositely charged under the pumping conditions, being taken from the classes of polyanionic and polycationic polymers. Two treatment fluids are pumped separately to the zone with fluid loss. The mixing of two treatment fluids into the well creates low-permeability agglomerates that plugs the fluid leakage channel, preventing or reducing further fluid movement between the wellbore and subterranean formation. The plugging of thief zone can be temporary or permanent.
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公开(公告)号：US11987743B2
公开(公告)日：2024-05-21
申请号：US17643701
申请日：2021-12-10
Applicant: Schlumberger Technology Corporation
Inventor： Bipin Jain , Shameed Ashraf
Abstract: The effectiveness of expansive cement systems may be diluted when, during a well cementing operation, commingling takes place between the cement slurry and a spacer fluid, a drilling fluid, or both. Incorporating expansive agents in the spacer fluid or drilling fluid may reduce or negate the loss of expansion at the cement slurry/spacer interface or the cement slurry/drilling fluid interface, thereby promoting zonal isolation throughout the cemented interval.
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