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Case Study: Plug and Abandonment Proceeds After Expansions

Home » Category: "Well Integrity and Evaluation"

Case Study:

Pennsylvania DEP grantS permission for operator to P&A well After Expansion Service 

Local Expander Data assists in Plug and Abandonment approval
» Decrease in both pressure and gas rate to zero show the effectiveness of Local Expander technology and allowed the operator to P&A the well.

 

CONDITION:

This Pennsylvania well was scheduled for plug and abandonment, however, gas flow in the annulus prevented the operator from starting the process. All gas migration and pressure had to be eliminated before the Pennsylvania Department of Environment Protection (DEP) would let P&A operations commence. Previous attempts at stopping the gas flow with traditional squeeze cement jobs proved unsuccessful. 

PROBLEM IDENTIFICATION:

The operator contacted Renegade Services. After reviewing well problems, Renegade recommended its Local Expander technology, which expands the casing into the cement and blocks the path of any unwanted gas flow.  

 

SOLUTION & RESULTS:

Utilizing Local Expander technology, Renegade created two sets of three expansions. The first set of expansions was performed at depths of 3369, 3370 and 3371 ft while the second set was at 2069, 2070 and 2071 ft, successfully sealing the annulus. The gas rate dropped from 1.5 mscf/day to zero flow after five days while the pressure rate decreased from 105 psi to zero psi after 14 days. Upon reviewing these successful results, the Pennsylvania DEP granted permission for the operator to P&A the well. 

Local Expander – Annular Squeeze Tool™

Let's start the conversation about how Renegade and the Local Expander can work for you.

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Case Study: Local Expander Resolves Backside Pressure in Pennsylvania

Home » Category: "Well Integrity and Evaluation"

Case Study:

Decrease in backside pressure allows operator to return seven wells to production

Renegade Local Expander Operator E Well 1 - 5

Candidate selection is a critical factor in obtaining effective and consistent Local Expander results. Factors such as expansion depth, the number of expansions and cement quality all will affect the success of the Local Expander service on individual wells. 

 

CONDITION:

This operator in Pennsylvania had an issue with backside pressure on several wells. The pressure was causing gas to flow up the annulus between the casing and cement. The gas flow exceeded limits set by the state for maximum gas flow. The operator had to stop production on the wells until the problem was addressed.  

PROBLEM IDENTIFICATION:

Renegade Services was called in to evaluate the wells and recommended the Local Expander™ tool to shut off the gas flow. Local Expander unique technology expands the casing into the cement, densifying the cement and stopping upward gas flow. The wells were at two locations, with one pad containing five wells and the second pad containing two wells. Pre-job well pressure ranged from 130 psi to 680 psi on the seven wells.  

SOLUTION & RESULTS:

The Local Expander provided a successful remedy decreasing the unwanted gas flow. Renegade performed 12 expansions (four sets of three expansions) on each well. Upon reviewing the successful results, the Pennsylvania Department of Environment Protection (DEP) granted permission for the operator to return the well to production. With the success of these wells, the operator engaged Renegade and the Local Expander on ten more wells.

Local Expander – Annular Squeeze Tool™

Let's start the conversation about how Renegade and the Local Expander can work for you.

Contact Sales
Download the Informational Flyer

Download Local Expander Data Sheet