Method and apparatus for testing a well
First Claim
Patent Images
1. A test system for testing a wellbore having a first zone, comprising:
- a chamber; and
an isolation device moveable in the chamber, the isolation device separating a first and a second portion of the chamber, the chamber adapted to receive fluid in the second chamber portion from the first zone, the isolation device adapted to be moved in the chamber in a first direction by the first zone fluid, wherein the wellbore further has a second zone, and wherein the first chamber portion is changeable with fluid pressure to move the isolation device in a second direction to pump the first zone fluid inside the second chamber portion into the second zone.
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Abstract
A test system and method for testing a well having a first and second zone includes a chamber and an isolation device moveable in the chamber. The isolation device separates a first and a second portion of the chamber. The chamber is adapted to receive fluid in the second chamber portion from the first zone. The isolation device is adapted to be moved in the chamber in a first direction by the first zone fluid. The first chamber portion can be charged with fluid pressure to move the isolation device in a second direction to pump the first zone fluid inside the second chamber portion into the second zone.
79 Citations
47 Claims
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1. A test system for testing a wellbore having a first zone, comprising:
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a chamber; and
an isolation device moveable in the chamber, the isolation device separating a first and a second portion of the chamber, the chamber adapted to receive fluid in the second chamber portion from the first zone, the isolation device adapted to be moved in the chamber in a first direction by the first zone fluid, wherein the wellbore further has a second zone, and wherein the first chamber portion is changeable with fluid pressure to move the isolation device in a second direction to pump the first zone fluid inside the second chamber portion into the second zone. - View Dependent Claims (2, 3, 4, 5)
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6. A test system for testing a wellbore having a first zone, comprising:
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a chamber; and
an isolation device moveable in the chamber, the isolation device separating a first and a second portion of the chamber, the chamber adapted to receive fluid in the second chamber portion from the first zone, the isolation device adapted to be moved in the chamber in a first direction by the first zone fluid, wherein the isolation device includes an electronic storage device for storing test measurement data. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. A test system for testing a wellbore having a first zone, comprising:
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a chamber; and
an isolation device moveable in the chamber, the isolation device separating a first and a second portion of the chamber, the chamber adapted to receive fluid in the second chamber portion from the first zone, the isolation device adapted to be moved in the chamber in a first direction by the first zone fluid, wherein the isolation device includes an isolation plug slideable in the chamber and a flow control device operator coupled below the isolation plug. - View Dependent Claims (14, 15)
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16. A test system for testing a wellbore having a first zone, comprising:
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a chamber;
an isolation device moveable in the chamber, the isolation device separating a first and a second portion of the chamber, the chamber adapted to receive fluid in the second chamber portion from the first zone, the isolation device adapted to be moved in the chamber in a first direction by the first zone fluid; and
a tubing extending in the wellbore, wherein the chamber is formed at least in part by the tubing.
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17. A test system for testing a well having a first and a second zone, comprising:
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a chamber;
a flow conduit adapted to receive fluid from the first zone;
a first valve to control fluid communication between the flow conduit and the chamber; and
a second valve to control fluid communication between the chamber and the second zone.
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18. A test system for testing a formation in a well, comprising:
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a flow conduit having a first general flow area adapted to receive fluid from the formation; and
a closed chamber being generally coaxial with the flow conduit and having a second general flow area greater than the first general flow area, the closed chamber adapted to receive formation fluid from the flow conduit. - View Dependent Claims (19)
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20. A test system for testing a formation in a well, comprising:
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a flow conduit having a first general flow area adapted to receive fluid from the formation;
a closed chamber having a second general flow area greater than the first general flow area, the closed chamber adapted to receive formation fluid from the flow conduit; and
a moveable isolation device separating the chamber into a first portion and a second portion.
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21. A test system for testing a formation in a well, comprising:
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a flow conduit having a first general flow area adapted to receive fluid from the formation; and
a closed chamber having a second general flow area greater than the first general flow area, the closed chamber adapted to receive formation fluid from the low conduit, wherein the chamber includes a tubing having the second general flow area.
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22. A test system for testing a formation in a well, comprising:
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a flow conduit having a first general flow area adapted to receive fluid from the formation;
a closed chamber having a second general flow area greater than the first general flow area, the closed chamber adapted to receive formation fluid from the flow conduit; and
a tubing and a casing, wherein the chamber includes an annulus defined between the tubing and the casing. - View Dependent Claims (23)
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24. A method of testing a well having a first zone and a second zone, comprising:
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flowing fluid through a flow conduit from the first zone into a chamber having a flow area greater than that of the flow conduit;
monitoring flow characteristics using test equipment; and
removing the increased volume of fluid from the chamber into the second zone. - View Dependent Claims (25)
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26. A test system for use in a well having a first zone, comprising:
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a chamber adapted to receive fluid from the first zone; and
an adjustable choke device adapted to maintain a fluid flow rate into the chamber at substantially a constant rate. - View Dependent Claims (27)
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28. A method of testing a well having a first zone and a second zone, comprising:
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flowing fluid from the first zone into a first portion of a chamber;
moving an isolation device that divides the chamber into the first chamber portion and a second chamber portion in a first direction in response to the fluid flow into the first portion; and
applying an elevated pressure in the second chamber portion to move the isolation device in a second direction to flow the fluid in the first chamber portion into the second zone. - View Dependent Claims (29, 30, 31, 32, 33)
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34. A test system for use in a well having a first zone, comprising:
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a tubular test chamber having an inner bore to receive fluid from the first zone;
an isolation device moveable in the inner bore of the test chamber to a lower position;
a circulation port in communication with the test chamber inner bore;
an outlet port in communication with a region outside the test chamber; and
a fluid channel between the circulation port and the outlet port and having a length to enable fluid in the test chamber inner bore above the isolation device in the lower position to communicate to the outside region. - View Dependent Claims (35, 36, 37, 38, 39)
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40. A system for use in a well, comprising:
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a chamber having an inner wall; and
an isolation device including a housing and a sealing element attached to the housing and slidably arranged along the inner wall of the chamber, the sealing element sealingly separating the chamber into two portions, wherein the isolation device includes a communications coupling module movable with the isolation device to enable data communications. - View Dependent Claims (41)
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42. The system of claim 42, wherein the communications coupling module is removably coupled to the sensor.
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43. A system for use in a well, comprising:
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a chamber having an inner wall; and
an isolation device including a housing and a sealing element attached to the housing and slidably arranged along the inner wall of the chamber, the sealing element sealingly separating the chamber into two portions, wherein the isolation device comprises a communications coupling module comprising a portion of an inductive coupler.
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44. A system for use in a well, comprising:
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a chamber having an inner wall; and
an isolation device including a housing and a sealing element attached to the housing and slidably arranged along the inner wall of the chamber, the sealing element sealingly separating the chamber into two portions, wherein the isolation device includes a communications coupling module and a storage element to receive data from the communications coupling module.
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45. A system for use in a well, comprising:
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a chamber having an inner wall; and
an isolation device including a housing and a sealing element attached to the housing and slidably arranged along the inner wall of the chamber, the sealing element sealingly separating the chamber into two portions, wherein the isolation device includes a communications coupling module and a controller to communicate one or more commands to the communications coupling module for controlling a downhole device.
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46. A system for use in a well, comprising:
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a chamber having an inner wall; and
an isolation device including a housing and a sealing element attached to the housing and slidably arranged along the inner wall of the chamber, the sealing element sealingly separating the chamber into two portions, wherein the isolation device further includes a flow control device, the flow control device being adapted to be opened to enable fluid communication through the isolation device. - View Dependent Claims (47)
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Specification