公开(公告)号：US11739246B2

公开(公告)日：2023-08-29

申请号：US17254884

申请日：2019-07-01

Applicant: M-I L.L.C.

Inventor： Hui Zhang ,  Jeremy Smith ,  Xia Wei ,  Weiqing Huang ,  Steven Philip Young

IPC: C09K8/26 ,  B01D17/04

CPC classification number: C09K8/26 ,  B01D17/047

Abstract: A method of recycling a direct emulsion wellbore fluid may include disrupting a direct emulsion comprising an aqueous external phase and an oleaginous internal phase, wherein the direct emulsion is stabilized by a surfactant composition; and separating the aqueous phase and the oleaginous phase.

公开(公告)号：US11639461B2

公开(公告)日：2023-05-02

申请号：US15999540

申请日：2016-02-19

Applicant: M-I L.L.C.[

Inventor： Pawilai Chinwangso ,  Hui Zhang ,  Changping Sui ,  Paulo Pauferro, Jr.

IPC: C09K8/36

Abstract: A wellbore fluid may include a non-oleaginous internal phase, an oleaginous external phase, and an emulsifier having a molecular weight of at least 700 daltons, whereby the emulsifier may include at least one tertiary amine. A method of completing a wellbore operation may include injecting a wellbore fluid downhole, the wellbore fluid including a non-oleaginous internal phase, an oleaginous external phase, and an emulsifier having a molecular weight of at least 700 daltons. The emulsifier may include at least one tertiary amine. The method may further include injecting a wash fluid comprising a protonating agent downhole.

公开(公告)号：US20180208827A1

公开(公告)日：2018-07-26

申请号：US15541462

申请日：2016-01-14

Applicant: M-I L.L.C.

Inventor： Pawilai Chinwangso ,  Sooi Kim Lim ,  Hui Zhang

IPC: C09K8/524

CPC classification number: C09K8/524 ,  C09K8/52 ,  C09K2208/18 ,  C09K2208/26 ,  E21B37/06

Abstract: A method comprising degrading a filtercake with a breaker comprising a urea-based polymer is provided. Also, a breaker composition is provided which includes a urea-based polymer that can hydrolyze in the presence of water and heat to release water-soluble byproducts and intermediates.

公开(公告)号：US20180155602A1

公开(公告)日：2018-06-07

申请号：US15578652

申请日：2016-05-27

Applicant: M-I L.L.C.

Inventor： Hui Zhang ,  Xia Wei ,  Brandi Katherine Price Hoelscher ,  Steven Young

IPC: C09K8/05 ,  C09K8/504 ,  C09K8/84 ,  C09K8/92

CPC classification number: C09K8/05 ,  C09K8/04 ,  C09K8/36 ,  C09K8/5045 ,  C09K8/845 ,  C09K8/92 ,  C09K2208/10

Abstract: A wellbore fluid comprising an aqueous base fluid and a plurality of nanoparticles suspended in the aqueous base fluid. The nanoparticles are present in the wellbore fluid in an amount effective to have an effect of increasing the density by at least 0.2 lb/gal.

公开(公告)号：US20210261848A1

公开(公告)日：2021-08-26

申请号：US17254884

申请日：2019-07-01

Applicant: M-I L.L.C.

Inventor： Hui Zhang ,  Jeremy Smith ,  Xia Wei ,  Weiqing Huang ,  Steven Philip Young

IPC: C09K8/26 ,  B01D17/04

Abstract: A method of recycling a direct emulsion wellbore fluid may include disrupting a direct emulsion comprising an aqueous external phase and an oleaginous internal phase, wherein the direct emulsion is stabilized by a surfactant composition; and separating the aqueous phase and the oleaginous phase.

公开(公告)号：US10214435B2

公开(公告)日：2019-02-26

申请号：US15297176

申请日：2016-10-19

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Pawilai Chinwangso ,  Hui Zhang ,  Steven Young

IPC: E21B43/22 ,  E21B33/13 ,  C02F1/68 ,  B01D17/04 ,  C02F101/32 ,  C02F103/10

Abstract: Non-emulsifying compositions may contain one or more sorbitan esters; one or more non-ionic surfactants; and one or more amphoteric surfactants, wherein the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants to the one or more amphoteric surfactants is in the range of 1:1:1 to 1:5:3. Methods may include contacting an emulsion with a treatment fluid, the treatment fluid containing one or more sorbitan esters, one or more non-ionic surfactants, and one or more amphoteric surfactants, wherein the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants to the one or more amphoteric surfactants is in the range of 1:1:1 to 1:5:3; and separating the emulsion into an aqueous phase and an oleaginous phase.

公开(公告)号：US10537829B2

公开(公告)日：2020-01-21

申请号：US15296505

申请日：2016-10-18

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Pawilai Chinwangso ,  Hui Zhang ,  Steven Young

IPC: B01D17/04 ,  C02F1/68 ,  E21B43/38 ,  C02F103/10 ,  C02F101/32 ,  E21B43/26 ,  C09K8/58 ,  C09K8/584

Abstract: Emulsion-preventing compositions may contain one or more sorbitan esters; and one or more non-ionic surfactants; where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5. Methods may include contacting an emulsion with a treatment fluid, the treatment fluid containing one or more sorbitan esters and one or more non-ionic surfactants, where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5; and separating the emulsion into an aqueous phase and an oleaginous phase.

公开(公告)号：US20170107127A1

公开(公告)日：2017-04-20

申请号：US15297176

申请日：2016-10-19

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Pawilai Chinwangso ,  Hui Zhang ,  Steven Young

IPC: C02F1/68 ,  E21B37/06 ,  B01D17/04

CPC classification number: C02F1/68 ,  B01D17/047 ,  C02F2101/325 ,  C02F2103/10

Abstract: Non-emulsifying compositions may contain one or more sorbitan esters; one or more non-ionic surfactants; and one or more amphoteric surfactants, wherein the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants to the one or more amphoteric surfactants is in the range of 1:1:1 to 1:5:3. Methods may include contacting an emulsion with a treatment fluid, the treatment fluid containing one or more sorbitan esters, one or more non-ionic surfactants, and one or more amphoteric surfactants, wherein the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants to the one or more amphoteric surfactants is in the range of 1:1:1 to 1:5:3; and separating the emulsion into an aqueous phase and an oleaginous phase.

公开(公告)号：US20170106311A1

公开(公告)日：2017-04-20

申请号：US15296505

申请日：2016-10-18

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Pawilai Chinwangso ,  Hui Zhang ,  Steven Young

IPC: B01D17/04 ,  E21B43/38 ,  C02F1/68

Abstract: Emulsion-preventing compositions may contain one or more sorbitan esters; and one or more non-ionic surfactants; where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5. Methods may include contacting an emulsion with a treatment fluid, the treatment fluid containing one or more sorbitan esters and one or more non-ionic surfactants, where the ratio of the one or more sorbitan esters to the one or more non-ionic surfactants is in the range of 1:1 to 1:5; and separating the emulsion into an aqueous phase and an oleaginous phase.

公开(公告)号：US20170088763A1

公开(公告)日：2017-03-30

申请号：US15276171

申请日：2016-09-26

Applicant: M-I L.L.C.

Inventor： Changping Sui ,  Pawilai Chinwangso ,  Hui Zhang

IPC: C09K8/34 ,  E21B37/06 ,  C09K8/035

CPC classification number: C09K8/34 ,  C09K8/035 ,  C09K8/502 ,  C09K8/602 ,  C09K8/604 ,  C09K8/82 ,  C09K2208/02 ,  C09K2208/26 ,  E21B21/003 ,  E21B37/06

Abstract: Methods may include circulating a first wellbore fluid into a wellbore, wherein the first wellbore fluid contains: a non-aqueous continuous phase, and a polyester internal breaker; wherein the first wellbore fluid generates a filter cake in at least a section of the wellbore; circulating a second wellbore fluid into the wellbore, wherein the second wellbore fluid contains an acid source and a surfactant; and allowing the second wellbore fluid to degrade at least a portion of the filter cake. Other methods may include circulating a wellbore fluid into a wellbore drilled with an oil-based mud containing a polyester fluid loss additive, wherein the wellbore fluid comprises one or more surfactants and an acid source.