1

AIMS AND OBJECTIVES

1.1

2

TYPICAL WELL TEST PLANNING MANUAL

2.1

2.1

ABBREVIATIONS

2.1

2.2

RIG MOVE MEETING

2.3

2.3

PRE-SPUD MEETING

2.3

2.4

RIGSITE SPUD MEETING

2.5

2.5

PRE-TEST MEETING

2.5

2.6

PRE-COMPLETION MEETING

2.6

2.8

PRE-WORKOVER MEETING

2.6

3

WELL TEST PLANNING

3.1

3.1

INTRODUCTION

3.1

3.2

INFORMATION AVAILABLE

3.1

3.3

TEST OBJECTIVES

3.2

3.4

TEST STRATEGY

3.5

3.5

TEST DESIGN

3.5

3.6

WELL DESIGN

3.9

3.6.1

Casing Programme

3.11

3.6.2

Drilling Fluids Programme

3.13

3.6.3

Cement Programme

3.15

3.6.4

Directional Programme

3.17

3.6.5

General

3.19

3.7

DRILLING PROGRAMME

3.20

3.7.1

Drilling Fluids Programme

3.21

3.7.2

Cement Programme

3.21

3.7.3

Wellhead Manufacturer's Manuals

3.21

3.7.4

Bit Proposal

3.21

3.7.5

Directional Programme (If Applicable)

3.21

3.7.6

Conductor and Casing Connection Information

3.21

3.7.7

Specifications

3.21

3.7.8

Tide Charts (If Applicable)

3.21

3.7.9

Relevant Manuals

3.22

3.7.10

Distribution List (Drilling Programme Only)

3.22

3.8

WELL TEST OPERATIONS

3.23

3.8.1

Sequence Of Action Events In Well Test Preparation

3.25

3.9

CLIENT QUESTIONNAIRE

3.29

4

RIG VISIT

4.1

5

WELL TEST PROGRAM

5.1

5.1

STATEMENT

5.1

5.2

INTRODUCTION

5.1

5.3

TEST OBJECTIVE

5.1

5.4

WELL TESTING SAFETY PROCEDURES

5.1

5.4.1

Rig Safety Meeting and Preparations

5.1

5.4.2

Wireline Perforating

5.3

5.4.3

Testing The Well

5.3

5.4.4

Responsibilities

5.4

5.4.5

Contingency Measures

5.5

5.4.6

Hydrogen Sulfide (H2S)

5.6

5.4.7

Deteriorating Weather

5.6

5.5

TEST DESIGN

5.6

5.5.1

Well and Reservoir Data

5.6

5.5.2

Test Program Outline

5.7

5.6

WELL TEST REQUIREMENT

5.7

5.6.1

Well Preparation Prior to Testing

5.7

5.6.2

Testing Equipment

5.8

5.7

PERFORATION

5.9

5.7.1

Tubing Conveyed Perforation

5.9

5.7.2

Cushion

5.10

5.7.3

Completion Fluid

5.10

5.7.4

Sampling and Contaminant Analysis

5.10

5.7.5

Data Acquisition

5.11

5.7.6

Production Logging

5.12

5.8

TESTING PREPARATION

5.13

5.9

SEQUENCE OF OPERATIONS

5.14

5.9.1

Well Preparation

5.14

5.9.2

Running Test String

5.14

5.9.3

Depth Correlation

5.15

5.9.4

Surface Line Rig-up

5.16

5.9.5

Perforating

5.16

5.9.6

Well Killing

5.19

6

THE ROLE OF THE WELL TEST SUPERVISOR

6.1

6.1

DRILLING COMPLETIONS AND WORKOVER MANAGER

6.2

6.2

DRILLING SUPERINTENDENT

6.3

6.3

SENIOR DRILLING ENGINEER

6.4

6.4

FLUIDS ENGINEER

6.5

6.5

DRILLING ENGINEER

6.6

6.6

COMPLETION AND WORKOVER SUPERINTENDENT

6.6

6.7

SENIOR COMPLETION ENGINEER

6.7

6.8

JUNIOR COMPLETION ENGINEER

6.8

6.9

THE ROLE OF OTHER PERSONNEL

6.9

6.10

PRE-TEST MEETINGS

6.11

6.11

SAFETY MEETINGS

6.12

6.12

SAFETY NOTES

6.13

6.13

TOOLBOX TALKS

6.14

6.14

FAULT RESPONSE

6.19

6.15

LANDING STRING SPACE-OUT

6.21

6.16

SPACE OUT PERMANENT PACKER DST

6.24

7

SURFACE EQUIPMENT LAYOUT

7.1

8

AREA CLASSIFICATION

8.1

8.1

HAZARDOUS ATMOSPHERE

8.1

8.2

HAZARDOUS AREA

8.1

8.3

ZONE 1 - AREAS

8.1

8.4

ZONE 2 - AREAS

8.2

8.5

VERTICAL EXTENT OF ZONE 1 AND ZONE 2 AREAS

8.2

9

PRESSURE TESTING

9.1

9.1

PRECAUTIONS PRIOR TO HYDRAULIC PRESSURE TESTING

9.1

9.2

PRECAUTIONS FOR HYDRAULIC TESTING

9.1

9.3

MEASUREMENTS WHILE TESTING

9.3

9.4

MONITORING OF SURFACE MEASUREMENTS DURING TESTING

9.5

10

QUICK CALCULATIONS

10.1

10.1

HYDROSTATIC PRESSURE - LIQUIDS

10.1

10.2

HYDROSTATIC PRESSURE – GASES

10.2

10.3

FLOW OF DRY GAS THROUGH A CHOKE

10.3

10.4

MULTIPHASE FLOW THROUGH A CHOKE

10.4

10.5

FORMULAS FOR CALCULATING CAPACITY OF VERTICAL CYLINDRICAL TANKS WITH FLAT ENDS

10.5

10.6

TEMPERATURE CONVERSIONS

10.6

10.7

DECIMAL EQUIVALENTS OF FRACTIONS OF AN INCH IN INCHES AND MILLIMETRES

10.7

10.8

CAPACITY OF VERTICAL CYLINDRICAL TANKS

10.8

10.9

TABLE AND EXAMPLE OF THE CALCULATION OF THE VOLUME OF FLUID IN A HORIZONTAL CYLINDRICAL TANK WITH FLAT ENDS

10.10

11

WELL TEST REPORT

11.1

12

PRESSURE BASICS

12.1

12.1

FUNDAMENTALS OF FLUIDS AND PRESSURE

12.1

12.1.1

Fluid Pressure

12.1

12.1.2

Specific Gravity

12.3

12.1.3

API Gravity

12.3

12.1.4

Hydrostatic Pressure

12.4

12.1.5

Gas Correction Factors

12.6

12.2

FORMATION PRESSURE

12.10

12.2.1

Sub-normal Formation Pressure

12.10

12.2.2

Normal Formation Pressure

12.11

12.2.3

Abnormal pressure

12.11

12.2.4

Reservoir Structure

12.14

12.3

FORMATION FRACTURE PRESSURE

12.15

12.4

FORMATION INTEGRITY TESTS

12.16

12.5

MAXIMUM ALLOWABLE ANNULUS SURFACE PRESSURE - MAASP

12.18

12.6

CIRCULATING PRESSURE LOSSES

12.19

13

PRODUCTION WELL KILL PROCEDURES

13.1

13.1.1

Bullheading (or Squeeze Kill)

13.4

13.1.2

Lubricate and Bleed

13.6