CA2177623A1 - Method of determining inflow rates from underbalanced wells - Google Patents

Method of determining inflow rates from underbalanced wells

Info

Publication number
CA2177623A1
CA2177623A1 CA002177623A CA2177623A CA2177623A1 CA 2177623 A1 CA2177623 A1 CA 2177623A1 CA 002177623 A CA002177623 A CA 002177623A CA 2177623 A CA2177623 A CA 2177623A CA 2177623 A1 CA2177623 A1 CA 2177623A1
Authority
CA
Canada
Prior art keywords
gas
liquid
well
rate
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002177623A
Other languages
French (fr)
Other versions
CA2177623C (en
Inventor
Lloyd G. Alexander
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nine Energy Canada Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA002177623A priority Critical patent/CA2177623C/en
Publication of CA2177623A1 publication Critical patent/CA2177623A1/en
Application granted granted Critical
Publication of CA2177623C publication Critical patent/CA2177623C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Pipeline Systems (AREA)

Abstract

A method is provided for determining the inflow rates of gas and liquid upon completion of an underbalanced well. The casing is placed, blocking fluid communication between the well and the formation. A tubing string is run in, forming an annular space and a tubing bore. The well is conditioned by removing sufficient liquids to create an underbalanced state and leaving a gas-filled space above any residual liquid. The volume of the gas-filled space in the annular space and the tubing bore is determined. The well is perforated, opening communication between the well and the formation.
Pressure within the tubing bore and annulus is measured as a function of time.
The rate of change of pressure is dependent upon the nature of the incoming fluid; be it gas or liquid. From the above, the rate of incoming fluid can be established as a function of the volume of the gas-filled space and the rate of change of pressure. The inflow rates of solely gas or solely liquid may be determined whether substantially all the liquid is removed during conditioning or only some of the liquid is removed.
CA002177623A 1996-05-29 1996-05-29 Method of determining inflow rates from underbalanced wells Expired - Fee Related CA2177623C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002177623A CA2177623C (en) 1996-05-29 1996-05-29 Method of determining inflow rates from underbalanced wells

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002177623A CA2177623C (en) 1996-05-29 1996-05-29 Method of determining inflow rates from underbalanced wells

Publications (2)

Publication Number Publication Date
CA2177623A1 true CA2177623A1 (en) 1997-11-30
CA2177623C CA2177623C (en) 2001-08-07

Family

ID=4158302

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002177623A Expired - Fee Related CA2177623C (en) 1996-05-29 1996-05-29 Method of determining inflow rates from underbalanced wells

Country Status (1)

Country Link
CA (1) CA2177623C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863818A (en) * 2018-08-08 2020-03-06 中国石油化工股份有限公司 Description method and device for residual oil/gas distribution
CN114198095A (en) * 2020-08-31 2022-03-18 中国石油天然气股份有限公司 Shaft failure data acquisition and analysis method and device and storage medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110863818A (en) * 2018-08-08 2020-03-06 中国石油化工股份有限公司 Description method and device for residual oil/gas distribution
CN110863818B (en) * 2018-08-08 2023-08-29 中国石油化工股份有限公司 Description method and device for residual oil/gas distribution
CN114198095A (en) * 2020-08-31 2022-03-18 中国石油天然气股份有限公司 Shaft failure data acquisition and analysis method and device and storage medium
CN114198095B (en) * 2020-08-31 2023-08-22 中国石油天然气股份有限公司 Shaft failure data acquisition and analysis method and device and storage medium thereof

Also Published As

Publication number Publication date
CA2177623C (en) 2001-08-07

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed