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Loss circulation prevention in geothermal drilling by shape memory polymer

Journal Article · · Geothermics
 [1];  [2];  [3];  [3];  [2]
  1. Univ. of Oklahoma, Norman, OK (United States); Univ. of Oklahoma, Norman, OK (United States)
  2. Univ. of Oklahoma, Norman, OK (United States)
  3. Louisiana State Univ., Baton Rouge, LA (United States)

Geothermal formations are naturally fractured with large fracture openings and networks. This can often lead to frequent drilling fluid loss events which is a major contributor to the cost and non-productive time in geothermal drilling. Development of smarter technologies and methods to tackle problem lost circulation is vital for geothermal drilling cost reduction required for geothermal energy to be recognized as a competitive alternative energy source. Mitigation of this problem and other drilling problems such as stuck pipe can minimize overall project cost. In this report, a thermoset shape memory polymer that can be activated by formation natural heat was assessed to seal near wellbore fractures in geothermal wells. The performance of the shape memory polymer (SMP) was evaluated using artificial fractures created in aluminum discs and cylindrical granite cores. Rheology and particle size distribution were considered. A novel testing setup was built for this work, which allows testing of sealing efficiency under dynamic conditions at high temperature. Analysis showed that the SMP has efficiently succeeded in forming a strong plug inside the fractures and stopped fluid loss at high sealing pressure. This smart loss circulation material can expand within the fractures to reduces non-drilling time and strengthen the wellbore in high-temperature drilling operations.

Research Organization:
Univ. of Oklahoma, Norman, OK (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
EE0008602
OSTI ID:
1848845
Alternate ID(s):
OSTI ID: 1779568
Journal Information:
Geothermics, Journal Name: Geothermics Journal Issue: C Vol. 89; ISSN 0375-6505
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (25)

Shape-Memory Polymers journal June 2002
Comparison of Shape Memory Metals and Polymers journal February 2006
Cold, warm, and hot programming of shape memory polymers journal March 2016
Plastic Deformation and Diffusionless Phase Changes in Metals — the Gold-Cadmium Beta Phase journal January 1951
Recent advances in shape memory polymers and composites: a review journal October 2007
Smart lost circulation materials for productive zones journal May 2018
Polyurethane ionomers having shape memory effects journal June 1998
Shape memory effect of polyethylene/nylon 6 graft copolymers journal December 1998
Tissue reaction around metal implants observed by X-ray scanning analytical microscopy journal April 2001
Effects of sodium carbonate addition, heat and agitation on swelling and rheological behavior of Ca-bentonite colloidal dispersions journal October 2017
Dramatic incidents during drilling at Wairakei Geothermal Field, New Zealand journal March 2009
Drilling of the well IDDP-1 journal January 2014
Uncertainty analysis of geothermal well drilling and completion costs journal November 2016
A combined thermo-mechanical drilling technology for deep geothermal and hard rock reservoirs journal May 2020
Thermomechanical behavior of thermoset shape memory polymer programmed by cold-compression: Testing and constitutive modeling journal June 2011
Optimum particle size distribution design for lost circulation control and wellbore strengthening journal September 2016
Updated criterion to select particle size distribution of lost circulation materials for an effective fracture sealing journal January 2017
Loss circulation in drilling and well construction: The significance of applications of crosslinked polymers in wellbore strengthening: A review journal February 2020
Novel shape memory behaviour in IPDI based polyurethanes: Influence of nanoparticle journal February 2017
Investigation of the Rheological Properties of Nanosilica-Reinforced Polyacrylamide/Polyethyleneimine Gels for Wellbore Strengthening at High Reservoir Temperatures journal May 2019
Light-induced shape-memory polymers journal April 2005
Review of progress in shape-memory polymers journal January 2007
Effects of Polymers and CMC Concentration on Rheological and Fluid Loss Parameters of Water-Based Drilling Fluids journal May 2007
Smart Expandable Cement Additive to Achieve Better Wellbore Integrity journal July 2017
Laboratory Study on Core Fracturing Simulations for Wellbore Strengthening journal March 2019

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