Drilling

NIPEIUBDM-0059

OKLAHOMA
A BDM Federol Company

Status Report A REVIEW OF SLIMHOLE DRILLING

bY Tao Zhu and Herbert 8. carroll

September 1994

W r Performed Under Contract No. ok
DE-AC22-94.K91ooS

preparedfor Rhonda Lh, Pmgram Manager us.Department o Energy f Bartlesville Project Office

DISCLAIMER This report was prepared as an account of work sponsored by an agency ofthe United States Government. Neither the United States Government nor any agency Thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Referenceherein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agencythereof.

DISCLAIMER Portions of this document may be illegible in electronic image products. Images are produced from the best available original document.

NIPEWBDM-0059 September 1994 Distribution Category UC-122

Status Report

A REVIEW OF SLIMHOLE DRILLING

Tao Zhu and HerbertB. Carroll

bY

W r Performed Under Contract No. ok
DE-AC22-94K91008
preparedfor RhondaLindsey,,amManager

US.Departtnent ofhew
BartlesvilleProjectOffice

DISCLAIMER

ThisrepcrrtwaspreparedasanaccountofworksponxnedbyanagencyoftheUnited States Government Neither the United States Government nor any agency thereof, nor any oftheir empbyees,makes any WananQ qressedor implied#or assumes any legal liability or v i t y f r the accrtracy, canpleteness, or usefulness of o anyinformaticm,apparatus,product, or process disclmed,orrepresensthat its use WoulanotinMngepriMtely Ownedrights. Referencehereinto~yspedfi~~ammerdal pduct, process, or d e by trade name, trademark manufacturer, or otherwise does not necessarilyCoLIStitute or imply its endorsement,reconmardaton, or fivoringby t e United States Government or any agency M The vi-and h . opinionsof authors expssed herein donot necessarilystate or reflect those of the U~tedStateSGo~entorany~~.

BDM-Oklahoma, Inc.

EO.Box2565
Wesville,Oklahoma 74005

TABLE OF CONTENTS

...................................................................................................................................... ACKNOWLEDGMENTS.................................................................................................................. 1 0 INTRODUCTION..................................................................................................................... . 2.0 APPLICATIONS FOR SLIMHOLE DRILLING...........................................................................
ABSTRACT
;

ix
x

1
4

2.1 2.2 2.3 2.4 2.5

ea........................................................Slimhole Technology for Low-Cost Development Wells .................................................... Sbhole Technology for Reentering Existing Wells ........................................................ Slimhole Technology for Horizontal Wells..................................................................... Slimhole Technology for Developing MultilateralWells................................................
Slimhole Technology for Exploration in Remote

4

8 10
16 18
25

30 .

ADVANTAGESOF SLIMHOLE DRaLING
3.1 3.2 3.3

............................................................................

Cost Savings.................................................................................................................. Reduction in Disposal Cost...