drilling eng overview

8/3/2019 Drilling Eng Overview

1/24

1

Drilling Engineering Overview

Project Management

Well Planning

Contractor Management

Risk Assessment

2

Project Management

Operators are dependent upon various service

providers for services that are critical to well

delivery.

Drilling engineers must actively manage

themselves and the resources at their disposal.

Effective drilling engineers are constantly andactively shifting their focus between

Engineering activities and Management

activities.


2/24

3

Project Management

Engineering activities include:

Details of the well design

Specification and assessment of work done by

other team members

Operational procedures and planning

Short term scheduling of tasks

Time and cost prediction

Performance monitoring and reporting

Lessons learned

4

Project Management

Management activities include:

Understanding the full scope of work involved in

the project

Leadership communication vision and goals for

the project, gain buy-in, progress reports

Long term scheduling of work phases based onduration and lead time

Setting priorities / Allocation of resources

Relationships among team members that enable

them to work effectively


3/24

5

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Well Planning Process

Setting Priorities Information Flow

Decision Support

Optimization

6

Geology

Offset well dataElectric Logs

MudlogsSamples

Cores

Test resultsSeismic data

Targets:

N-S/E-WTVD

Size / Shape / OrientationDirectional Tendencies / Dip Angles / Faults

Lithologies:

Rock type / strengthPorosity / permeability

Troublesome FormationsFracture and Pore Pressure Gradients

Temperature

Expected FluidsExpected Flow Rates

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP


4/24

7

Completion

GeologyLithologies:

Rock type / strength

Porosity / permeability

Dip Angles / Faults

Fracture and Pore Pressure Gradients

Expected FluidsExpected Flow Rates

Production Casing/Tubing SizeCompletion Design

Artificial Lift Requirements

Stimulation Design

Length / Orientation in Reservoir

Future Intervention Requirements

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

8

Trajectory Design

Geology

Targets:

N-S/E-W

TVD

Size / Shape

Orientation

Troublesome Formations

Directional Tendencies

Completion


Future Intervention Requirements

MD/TVD

InclinationAzimuth

KOPBuild Rates

Walk Rates

Dogleg Severity

N-S / E-W Displacements

Horizontal Departure

Surveying Requirements

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP


5/24

9

Wellbore Stability

GeologyTarget Orientation

Lithologies

Rock type / strengthFracture & Pore Pressure Gradients

Troublesome Formations / Stress Regime

Directional Tendencies

Completion


Prod. Casing/Hole Size

Pressure at Abandonment

Trajectory

Wellbore Position

KOPInclinationAzimuth

Mechanical Stability: MW Window

Drilling Practices

Tripping PracticesChemical Stability: Inhibitive Fluid Reqts.

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

10

Drilling Fluids

Geology

Lithologies

Rock type / strength

Fracture & Pore Pressure Gradients

Troublesome Formations

CompletionNon-damaging

TrajectoryInclination

Wellbore Stability

MW Schedule

Inhibitive Fluid Reqts.

Mud Type

Mud Properties

Mud Weight

Rheology

Filtration

InhibitionSolids Control Requirements

Cuttings Handling / Disposal

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP


6/24

11

Casing

Wellbore StabilityMW Schedule

Casing Seat OptionsCompletionProd. Casing / Hole Size

Completion DesignStimulation Design

Zonal Isolation

Drilling FluidsMud Type

Mud Properties

Mud Weight

Viscosity

Friction Coefficient

Trajectory

Critical Angle

Dogleg Severity

Casing Sizes, Weights, Grades, Connections

Casing Setting Depths

Casing vs- Liner/TiebackLoad Cases Tension, Burst, Collapse, BucklingSpecial Tools

Running Procedures

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Geology

Pressure ProfileUnstable formations

12

Cementing

Wellbore Stability

MW Schedule

Problem formations

CompletionHole Size Requirements

Completion Design

Stimulation Design

Zonal IsolationDrilling Fluids

Mud Type

Mud Properties

Mud Weight

Viscosity

Trajectory

Inclination

Dogleg Severity

Cement Job DesignsSlurry type / additives

Slurry volumes

Spacers / Washes

Displacement

Conventional vs- Inner string

Tool Selection Float Equipment,

Centralizers, Stage tools, ECPs

FIT / LOT Plan

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Geology

Pressure Profile

Temperature

Aquifers


7/24

13

Wellheads / BOP

CasingCasing Sizes

No. of strings to surface

Completion

Hole Size Requirements

Completion Design

Stimulation Design

Drilling Fluids

Mud Type

Mud Additives

Trajectory

Close proximity

requirements

Wellhead Size / Design / Pressure Rating

BOP Size / Configuration / Working Pressure RatingTesting Procedures / Frequency

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Geology

Pressure Profile

Temperature

14

BHA & Drill String

Drilling Fluids

Mud Type

Mud PropertiesMud Weight

Friction Coefficient

Trajectory

Measured Depth

True Vertical Depth

KOP / Dogleg Severity

Inclination

Azimuth

Geology

Lithology / strength

Dip Angles / Faults

CasingCasing Sizes

Setting Depths

BHA Configuration / Directional Response

Drill String: Lengths, Sizes, Weights, Grades, Connections

Performance Properties: Tension, Torque, Buckling

Operating Procedures: Torque and Drag

% Rotary Mode, Tortuosity

Casing Wear Prediction / Mitigation Plan

Inspection Procedures / Frequency

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP


8/24

15

Bits

Drilling Fluids

Mud Type

Mud Properties

InhibitionTrajectory

Measured Depth

Dogleg Severity

Geology

Lithology / strength

Reactivity of claysAbrasiveness

Casing

Casing Sizes

Bit Size, Roller Cone / Fixed Cutter, Style, Features

Operating Parameters: WOB, RPM

Expected ROP, Footage, Bit Life, Cost / Foot

Eccentric or Bicenter Requirements

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Wellbore Stability

Mobile Formations

BHA & Drill String

WOB and Torque Cap.

Motor Torque Output

% Rotary Mode

Cementing

Annular Clearance Reqts

16

Hole Cleaning &

Hydraulics

Drilling FluidsMud Type

Mud PropertiesMud Weight

RheologyFiltration

TrajectoryMeasured Depth

Surveying ReqtsInclination

Casing & CementingCasing Sizes

Setting Depths

BHA & Drill String

Drill String:

Lengths, Sizes,

% Rotary Mode

Flow Rates

Standpipe Pressures

Pump Horsepower Requirements

Annular Velocities

Equivalent Circulating Densities

Surge / Swab

Bit Hydraulic Horsepower

Hole Cleaning Recommendations

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Wellbore StabilityUnstable Formations

Hole EnlargementPore Pressure / Frac

Gradient Window

Bits

Hole Sizes

Bit Design

Expected ROP


9/24

17

Rig Equipment

Casing

Casing SizesSetting Depths

Hookload

Drilling Fluids

Mud TypeMud Properties

Solids Control

Storage Volume

Cuttings Handling

BHA & Drill String

Lengths, Sizes

Tension / Torque Loads

RPM

Hole Cleaning

& Hydraulics

Flow Rates

Standpipe Pressures

Pump HP Reqts

Top Drive Torque / RPM Capability

Pump HP / Flow Rate / Pressure Capability

Hookload Capacity

Derrick Setback Space / Capacity

Drilling Fluid Storage / Mixing / Solids Control

Bulk Dry / Liquid Storage Capacity

Deck Space / Bed Space

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Cementing

Slurry VolumesAdditive Types

Wellheads / BOP

Size / Configuration

Pressure Rating

18

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Deck Space for Equipment

Storage for Fluids

Bed Space for People

Top Drive

Torque Output

Liquid Storage

Dry Storage

Solids Control

Cuttings Handling Deck Space for Tubulars

Deck Space for EquipmentHookload Capacity

Dry Storage

Liquid Storage

for returns Size / Configuration

Pressure Rating

Rig Pipe Inventory

Racking Space

Storage SpacePump HP

Flow Rate / SPM

Standpipe Pressure Limit

Working Backwardsfrom

Rig Capabilities


10/24

19

Geology

Completion

Trajectory

BHA & Drill String

Casing

Drilling Fluids

Wellbore Stability

Hole Cleaning

& Hydraulics

Rig Equipment

Cementing

Bits

Wellheads / BOP

Exampleof

Other Iterations

20

Hazard Control Process


11/24

21

Unocal Hazards Control Policy

Inspection,

0perations,

Maintenance and

Cessation of operations.

Engineering,

Drilling,

Well servicing,

Construction,

Each operating unit shall ensure that hazards control

procedures are developed and implemented to effectivelyidentify, evaluate and control hazards associated with

all work at each stage, from conception through design;

22

Work

Emergency?

Type of

Work?

HAR

Required?

Significant

Work Scope

Change?

Mitigate

Emergency

HA Screening

and Technique

Selection

Select HAR

Technique and

HAR team

Perform

Hazard Analysis

Review

Follow-up and

Close-out

HAR Actions

Finalize Design

Implementation

Planning

Yes

No

No

Yes

Yes

No

As Soon As Possible

Change or New Project Maintenance/Replacement-in-Kind

Design/EngineeringPhase


12/24

23

Note 1:

"Resolving concerns will be by any of a number of

methods such as peer discussion, project meeting or a

formal hazard analysis. The method selected will be

at the discretion of the performing authority, suitably

trained in application of the techniques.

Any Concerns?

Variance

from Work

Plan?

ImplementationPhase

Screening

Start Work

Complete Work

Resolve

Concerns

(Note 1)Yes

No

No

Yes

Im

plementation/ConstructionPhase

Implementation

Planning

Hazards Control Process

24

Hazard Analysis

Design Phase

Hazard Analysis Screening

Use Guidebooks - Tools and Techniques / When to use

Engineering Phase

Hazard Analysis Review

Finalize Work

Implementation Phase Significant Work Scope Change

Implementation Planning

Screening Go / No Go

Deviation from work plan

Work Completion reporting / audit / learning


13/24


14/24

27

Risk Management Objectives

Control losses and manage risks

Promote critical thinking and management of change

Provide a standard risk assessment methodology

Provide additional risk management tools

Provide risk management training

Comply with Unocals Risk Management Standard

Comply with Unocals OMS requirements for risk,engineering standards and management of change

Complement Unocals Hazards Control Policy

28

Key ContractRisk Management Elements

Indemnification

Insurance

Accident Reporting

Force Majeure

Warranties, includingpatents and copyright

Confidentiality

Audit

Applicable Law

Billing

Term

Termination

Foreign Corrupt PracticesAct

Technical Exhibits


15/24

29

Contractor Management

Program

30

Key Aspects of the CMP

Company-wide application of best practices to select

and manage contractors

A well defined cradle to grave contracting process

Each contract is owned by a Contract Manager

Contract teams are formally established

Technical specifications and Contractor selection are

based on business objectives


16/24

31

Key Aspects of the CMP

Focus is on total long term value; not (only) on price

Planned and structured management of Contractor

performance continuous improvement

Risk Management / OMS

The program is a guideline that must reflect BU

requirements

32

Managers Responsibilities

Integrate the CMP into every major project / program

Make appropriate resources (personnel) available

Delegate responsibility to contract teams:

Ensure the right people are selected as team members

Clarify the priority of the contracting effort and provide guidance

Participate in appropriate reviews and sanction key decisions Track progress and address problem areas - ensure accountability

Be visibly committed to the CMP


17/24

33

The Procurement Team

Contract Manager

Procurement Specialist

HES Representative

Engineers & Techs

Superintendents

Worksite Supervisors

Clerks & Secretaries

Management

Attorney

HR Rep

Accounting Rep

Tax Department Rep

Auditors

Cross Functional Personnel

34

CMP Objectives

Apply Unocals values to all business dealings

Maximize the value for every procurement dollar

Manage risks (HES, operational, & commercial)

Timely delivery of quality goods and services

Meet requirements of policies and regulations Integrate multiple Contractors in a single project


18/24

35

Contracting Priorities(Key Value Drivers)

Personnel

Service

Goods

Pricing

36

Drivers - Personnel

This is the single greatest factor in being

the Clear Leader!

We need Contractor personnel who are:

technically excellent

highly motivated driven by continuous improvement

team players

available to Unocal


19/24

37

Drivers - Goods

Have we developed detailed technical

specifications? Composition of materials

API specifications

Pressure and Temperature ratings

Do we understand Contractors QA / QC?

38

Drivers - Service

Quality of service is always determined byquality of personnel and overall management

Service is impacted directly by the way inwhich we manage the relationship from bothsides


20/24

39

Drivers - Pricing

Every Contractor working for Unocalneeds to make a fair and reasonable

profit.

A key driver for all Contractors is to

be paid on time!

40

Expectations

Establish high expectations and define themearly - What do we consider success?

Ensure management (Unocal & Contractor)are committed to meeting the expectations

Expect continuous improvement


21/24

41

Contracting Activities Form a Contract Team

Research the Business Environment

Internal and External Develop Contract Strategy

Method of Selection & Commercial Structure Bid / Bundle / Negotiation / Alliance / Turnkey / Performance

Global or local / Extensions / Exclusive personnel or equipment

Develop Specifications

Pre-Qualify Vendors

Revalidate the Strategy Does original strategy still appear workable?

Contract Implementation Reporting / Invoicing

Performance Management During the Contract Life

42

Research the Business Environment

Internal understanding: Analysis of this type of service: Who spends how much

with whom to accomplish what?

Forecasted activity level

Historical problems (quality, timeliness, incidents)

Opportunities to bundle services or consolidate with otherdepartments / business units

External understanding: What levels of competition and what range of quality &

capabilities exist in the market?

What commercial structures are most efficient for theContractors?


22/24

43

Performance Management

During the Contract Life

Contract Manager is the focus point and isresponsible for Contractor performance

Business Performance Reviews (BPR) are held toidentify any issues and track action items created toaddress those issues

Contract Strategy Review (6 12 months from endof contract term)

Final Contract Review


23/24

Notes:__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________


24/24

Notes:__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

__________________________________________________________

drilling eng overview

Documents