Optimized production via geological mapping

Patent metadata

Field	Value
Publication number	US-2016102500-A1
Application number	US-201514814091-A
Country	US
Kind code	A1
Filing date	Jul 30, 2015
Priority date	Oct 10, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

A method for optimizing deposit production in a well includes localizing the low resistivity fluid deposits in a geological formation. Once the deposits are mapped, production of the fluid deposit from the geological formation is optimized based on the localizing. The optimization may include adjustment of at least one of a drilling parameter or a production parameter.

First claim

What is claimed is:

1 . A method for optimizing production in a well, the method comprising:
localizing low resistivity fluid deposits in a geological formation; and optimizing production of the fluid deposits from the geological formation based on the localizing by adjustment of at least one of a drilling parameter or a production parameter.

2 . The method of claim 1 , wherein localizing comprises electromagnetic tomography using a transmitter on a surface of the geological formation and a receiver in a borehole through the geological formation.

3 . The method of claim 1 , wherein localizing comprises electromagnetic tomography using a transmitter in a borehole through the geological formation and a receiver on a surface of the geological formation.

4 . The method of claim 1 , wherein localizing comprises electromagnetic tomography using a transmitter and receiver on a surface of the geological formation.

5 . The method of claim 1 , wherein localizing comprises using an azimuthal resistivity tool.

6 . The method of claim 5 , wherein using the azimuthal resistivity tool comprises measuring a current leakage from a casing through the geological formation.

7 . The method of claim 6 , wherein the casing is a production well casing and measuring the current leakage comprises:
injecting a current on the production well casing; and measuring a magnetic field within an injector well.

8 . The method of claim 6 , wherein the casing is a production well casing and/or an injector well casing and measuring the current leakage comprises:
injecting a current on the production casing and/or the injector casing; and measuring the magnetic field within the casing on which the current is injected.

9 . The method of claim 6 , wherein measuring the current leakage comprises:
measuring the magnetic field from magnetic sensors located outside of well casing.

10 . The method of claim 1 , wherein optimizing production comprises geosteering a drill head.

11 . The method of claim 1 , wherein optimizing production comprises adjusting slots and/or seams in a casing of a production well.

12 . The method of claim 11 , wherein adjusting the slots and/or seams in the casing comprises at least one of: adjusting the slot and/or seam design based on the fluid deposit and/or adjusting the slot and/or seam density and/or size based on the fluid deposit.

13 . The method of claim 1 , wherein optimizing production comprises estimating steam characteristics and/or production characteristics of the fluid deposit.

14 . A method for optimizing production in a well, the method comprising:
drilling a production or an injector well in a geological formation; localizing, with the production or injector well, low resistivity fluid deposits in the geological formation by: electromagnetic tomography, current leakage measurement, or logging while drilling deep-reading to map low resistivity fluid deposits in the geological formation; and geosteering drilling, adjusting casing parameters, or estimating steam characteristics of the fluid based on the localizing.

15 . The method of claim 14 , wherein the geosteering drilling comprises geosteering a drill bit in the production well in three dimensions through the geological formation.

16 . The method of claim 14 , wherein localizing fluid deposits in the geological formation comprises using a logging while drilling tool.

17 . A drilling system comprising:
a down hole tool comprising an electromagnetic tomography tool, a current leakage measurement tool, or a logging while drilling deep-reading tool configured to map low resistivity fluid deposits in a geological formation; and a controller coupled to the down hole tool and configured to control optimization of production of the fluid by controlling a drilling parameter or a production parameter based on the mapping of the fluid.

18 . The system of claim 17 , wherein the down hole tool comprises a logging while drilling tool having a non-azimuthal, azimuthal, deep-reading, or ultra-deep reading function.

19 . The system of claim 17 , wherein the controller is further configured to control geosteering of a drill string based on the mapping of the fluid.

20 . The system of claim 17 , further comprising a well casing in an injector well wherein the well casing comprises a slot or seam design in response to the mapping of the fluid.

21 . The system of claim 20 , wherein the slot or seam design includes density and/or locations of slot and/or seams of the well casing.

22 . The system of claim 17 , wherein the controller is further configured to steer a steam chamber away from the fluid.

Assignees

• Halliburton Energy Services Inc

Inventors

• Donderici Burkay
• Iskander Fady Adel Maurice

Classifications

• E21B47/0228

  using electromagnetic energy or detectors therefor · CPC title

• G01V3/20

  operating with propagation of electric current · CPC title

• E21B43/30

  Specific pattern of wells, e.g. optimising the spacing of wells · CPC title

• E21B44/00 Primary

  Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions · CPC title

• E21B43/24 Primary

  using heat, e.g. steam injection · CPC title