Unlock instant, AI-driven research and patent intelligence for your innovation.

Production logging in horizontal wells

a technology for logging production wells and wells, which is applied in the field of oilfield downhole tools, can solve problems such as challenging production logging in horizontal wells

Inactive Publication Date: 2013-04-04
BAKER HUGHES INC
View PDF10 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a device and method for measuring oil and gas production in wells. It includes a device that measures how much oil or gas is being produced and a device that measures how fast the oil or gas is flowing. By measuring these two parameters, the device can provide a more accurate measure of oil and gas production in wells. This technology helps to improve the process of drilling and producing oil and gas from wells.

Problems solved by technology

Production logging in horizontal wells can be challenging because of phase segregation due to gravity and fluid density difference.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Production logging in horizontal wells
  • Production logging in horizontal wells
  • Production logging in horizontal wells

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015]As will be appreciated from the discussion below, aspects of the present disclosure provide a production logging tool that can operate in deviated and horizontal wells (i.e., non-vertical wells). Illustrative production tools according to the present disclosure may be used to define a flow profile, the perforations contributions, and the water entries. These production tools furnish at least two main measurements, holdup and velocity measurement, which may be used to define the flow profile in a well. Illustrative embodiments are discussed below.

[0016]Referring initially to FIG. 1, there is shown an exemplary wellbore 10 having a complex well trajectory. The well 10 has been drilled through the earth 12 and into a pair of formations 14, 16 from which it is desired to produce hydrocarbons. The wellbore 10 is cased by metal casing, as is known in the art, and a number of perforations 18 penetrate and extend into the formations 14, 16 so that production fluids may flow from the f...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

An apparatus for production logging includes a conveyance device configured to traverse a wellbore, a multicapacitance flow meter positioned on the conveyance device and configured to estimate at least one parameter relating to holdup; and a spinner flow meter positioned on the conveyance device and configured to estimate at least one parameter relating to a flow velocity of at least one fluid phase.

Description

BACKGROUND OF THE DISCLOSURE[0001]1. Field of the Disclosure[0002]This disclosure relates generally to oilfield downhole tools and more particularly to tools for logging production wells.[0003]2. Description of the Related Art[0004]Well logging surveys are often made in producing oil and gas wells to determine the fraction of oil, gas and unwanted water components present in a production interval. These data along with measurements of the fluid flow velocity, cross-section of the well, pressure and temperature may be used to determine production rates and other information from each zone of interest in the well. Such data may be useful for optimizing the well production, oil recovery, and water shut-off, in order to achieve a better reservoir management and to reduce intervention costs.[0005]The number of drilled horizontal wells continues to increase. Production logging in horizontal wells can be challenging because of phase segregation due to gravity and fluid density difference. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): E21B47/10
CPCE21B47/10G01F1/10E21B4/18
Inventor MEMICHE, LYNDA
Owner BAKER HUGHES INC