Multiple surface excitation method for determining a location of drilling operations to existing wells

Patent metadata

Field	Value
Publication number	US-11680479-B2
Application number	US-202117392445-A
Country	US
Kind code	B2
Filing date	Aug 3, 2021
Priority date	Nov 30, 2018
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

A method and system for determining a position of a second production wellbore. The method may comprise inducing a first current into a first conductive member with a first source, emitting a first magnetic field generated by the first current from the first conductive member into a formation, inducing a second current into a second conductive member with a second source, emitting a second magnetic field generated by the second current from the second conductive member into the formation, disposing an electromagnetic sensor system into the second production wellbore, recording the first magnetic field with the at least one sensor from the formation, and recording the second magnetic field with the at least one sensor from the formation. The system may comprise a first source, an electromagnetic sensor system, at least one sensor and an information handling system configured to determine the position of the second production wellbore.

First claim

What is claimed is:

1. A method for determining a position of a wellbore, comprising:
inducing a first current to form a first magnetic field with a first source in a first conductive member disposed at a first location in Earth's surface, wherein the first location comprises a first distance from the wellbore and a first direction from the wellbore;
inducing a second current to form a second magnetic field with a second source in a second conductive member disposed at a second location in the Earth's surface, wherein the second location comprises a second distance from the wellbore and a second direction from the wellbore, and wherein the first location and the second location are not the same location;
inducing a third current into the first conductive member and the second conductive member at the same time with a third source by connecting the third source to both the first conductive member and the second conductive member;
emitting a third magnetic field into the formation;
disposing an electromagnetic sensor system into the wellbore, wherein the electromagnetic sensor system comprises one or more sensors;
recording the first magnetic field from the formation with the one or more sensors;
recording the second magnetic field from the formation with the one or more sensors; and
recording the third magnetic field from the formation with the one or more sensors.

2. The method of claim 1 , further comprising energizing the first conductive member and the second conductive member simultaneously.

3. The method of claim 2 , wherein the first conductive member and the second conductive member each form a separate magnetic field.

4. The method of claim 1 , wherein the first current in the first conductive member and the second current in the second conductive member are induced separately.

5. The method of claim 1 , wherein the electromagnetic sensor system is connected to an information handling system.

6. The method of claim 1 , further comprising inducing a fourth current to form a fourth magnetic field with a fourth source in the first conductive member.

7. The method of claim 1 , further comprising inducing a fifth current to form a fifth magnetic field with a fifth source in the first conductive member.

8. The method of claim 1 , further comprising using reciprocity of two excitations with the same grounding position.

9. The method of claim 1 , further comprising using a known distance between the first conductive member and the second conductive member to determine a position of the wellbore from the first conductive member and the second conductive member.

10. The method of claim 1 , wherein the first source is attached to the first conductive member and the second conductive member.

11. The method of claim 1 , wherein the one or more sensors are magnetometers.

12. A method for determining a position of a wellbore comprising:
inducing a first current into a first conductive member with a first source, wherein the first conductive member is disposed at a first location, wherein the first location comprises a first distance from the wellbore and a first direction from the wellbore;
emitting a first magnetic field into a formation;
inducing a second current into the first conductive member ands a second conductive member at the same time with a second source by connecting the second source to both the first conductive member and the second conductive member;
emitting a second magnetic field into the formation;
alternating inducing the first current and the second current into the first conductive member;
disposing an electromagnetic sensor system into a wellbore, wherein the electromagnetic sensor system comprises one or more sensors;
recording the first magnetic field from the formation with the one or more sensors; and
recording the second magnetic field from the formation with the one or more sensors.

13. The method of claim 12 , wherein the first conductive member is disposed in a first production wellbore.

14. The method of claim 12 , wherein the second conductive member is disposed in a first injection wellbore.

15. The method of claim 12 , wherein the electromagnetic sensor system is connected to an information handling system.

16. A system for determining a position of a drilling operation to create a wellbore comprising:
a first source, wherein the first source is attached to a first conductive member, wherein the first conductive member is disposed at a first location, wherein the first location comprises a first distance from the wellbore and a first direction from the wellbore;
a second source, wherein the second source is connected to the first conductive member and a second conductive member, wherein the second conductive member is disposed at a second location, wherein the second location comprises a second distance from the wellbore and a second direction from the wellbore, and wherein the first location and the second location are not a same location;
an electromagnetic sensor system comprising:
at least one sensor; and
an information handling system connected to the first source, the second source, the electromagnetic sensor system, wherein the information handling system is configured to determine the position of the drilling operation and activate the first source and the second source to excite the first conductive member and the second conductive member.

17. The system of claim 16 , further comprising a third source, wherein the third source is connected to the first conductive member and the information handling system is further configured to excite the first conductive member with the third source.

18. The system of claim 17 , wherein the information handling system is further configured to excite the first conductive member by alternating between the first source, the second source, and the third source.

19. The system of claim 16 , further comprising a fourth source, wherein the fourth source is connected to the first conductive member and the information handling system is further configured to excite the first conductive member with the fourth source.

20. The system of claim 16 , further comprising a fifth source, wherein the fifth source is connected to the first conductive member and the information handling system is further configured to excite the first conductive member with the fifth source.

Assignees

• Halliburton Energy Services Inc

Inventors

• Fan Yijing
• Wu Hsu-Hsiang
• Pan Li

Classifications

• G01V3/28

  using induction coils · CPC title

• E21B47/0228 Primary

  using electromagnetic energy or detectors therefor · CPC title

• E21B43/2406

  Steam assisted gravity drainage [SAGD] · CPC title