Compositions and method for treating out hydrogen sulfide and preventing settling of precipitate in an environmentally responsible drilling and packer fluid
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C09K-008/532
C09K-008/06
C09K-008/08
C09K-008/34
C09K-008/54
C09K-008/36
출원번호
US-0429329
(2017-02-10)
등록번호
US-10214678
(2019-02-26)
발명자
/ 주소
Hall, John Adrian
Teke, Kushabhau D.
Nikam, Pramod Dadasaheb
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Krueger, Tenley
인용정보
피인용 횟수 :
0인용 특허 :
12
초록▼
An environmentally responsible iron chelating additive and method for removing hydrogen sulfide or sulfide ions from drilling and packer fluids and preventing settling of precipitates. Iron chelating agents selected from the group consisting of ferrous lactate, ferrous gluconate, ferrous bis glycina
An environmentally responsible iron chelating additive and method for removing hydrogen sulfide or sulfide ions from drilling and packer fluids and preventing settling of precipitates. Iron chelating agents selected from the group consisting of ferrous lactate, ferrous gluconate, ferrous bis glycinate, ferrous citrate, ferrous acetate, ferrous fumarate, ferrous succinate, ferrous sacchrate, ferrous tartarate, ferrous glycine sulfate, ferrous glutamate, ferrous ascorbate, ferrous polymaltose, or a combination thereof, may be used. When the fluids are oil based, the iron chelating agents are added to the water phase of an emulsion, and the emulsion is added to the fluid. Viscosifiers may also be added to the drilling fluid with the emulsion.
대표청구항▼
1. A fluid for use in the presence of hydrogen sulfide in a subterranean formation, comprising: an oleaginous base;an additive comprising at least one ferrous based compound selected from the group of consisting of ferrous lactate, ferrous bis glycinate, ferrous citrate, ferrous acetate, ferrous fum
1. A fluid for use in the presence of hydrogen sulfide in a subterranean formation, comprising: an oleaginous base;an additive comprising at least one ferrous based compound selected from the group of consisting of ferrous lactate, ferrous bis glycinate, ferrous citrate, ferrous acetate, ferrous fumarate, ferrous succinate, ferrous sacchrate, ferrous tartarate, ferrous glycine sulfate, ferrous glutamate, ferrous ascorbate, ferrous polymaltose, and combinations thereof; anda viscosifier, such that the product of any reaction of the ferrous based compound with any hydrogen sulfide in the fluid will remain in suspension in the fluid. 2. The fluid of claim 1 wherein the additive is prepared by first dissolving the ferrous based compound in an aqueous portion of a water-in-oil emulsion before the additive is added to the fluid. 3. The fluid of claim 2 wherein the ferrous based compound is added directly into the oleaginous base. 4. The fluid of claim 2 wherein the oil in the water-in-oil emulsion and the oleaginous base are the same or are compatible. 5. The fluid of claim 1 wherein the ferrous based compound does not adversely affect the rheological properties of the fluid. 6. The fluid of claim 1 wherein the ferrous based compound has an iron content of at least 14%. 7. The fluid of claim 1 wherein the fluid has a pH above about 9. 8. The fluid of claim 1 wherein the fluid has a pH above about 11. 9. The fluid of claim 1 wherein the fluid is a packer fluid. 10. The fluid of claim 1 wherein the fluid is a drilling fluid.
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이 특허에 인용된 특허 (12)
Patel Bharat B. (Bartlesville OK), Composition and process for stabilizing viscosity or controlling water loss of polymer-containing water based fluids.
Jeffrey Gaines C. (Houston TX) Cooper Lance A. (Lake Jackson TX) Whipple Sharon S. (Sanford MI), Downhole hydrogen sulfide scavenging in drilling mud using iron chelates.
Bellussi, Giuseppe; De Angelis, Alberto; Pollesel, Paolo; Milli, Marcello, Process for the continuous removal of hydrogen sulfide from gaseous streams.
Griffin ; Jr. Freddie (Missouri City TX) Wilson David A. (Richwood TX) Christiansen Steven H. (Waianae HI), Process for the preparation of a stable salt-free iron chelate for use in hydrogen sulfide abatement.
Sibeud Jacques Pierre (Princeton NJ) Ruff Charles David (Highland Park NJ), Process for the removal of hydrogen sulfide and mercaptans from liquid and gaseous streams.
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