Rigless Well Abandonment P&A
Thru-Tubing Rigless Subsea P&A
Rigless P&A Downhole Tubing Disposal Overview of Method

 

Meets the well plugging requirements of the Netherlands State Supervision of Mines, United Kingdom Oil & Gas, NORSOK D-010 Revision 4, United States Bureau of Safety and Environmental Enforcement (BSEE/MMS) and the Texas Railroad Commission.

 

Method Confirmed
Rigless P&A Downhole Tubing Disposal Method Verified and Validated

 

We have verified that our compaction method and designed a vertical cutter capable of splitting or shredding tubing within casing so that it can easily be compacted to provide space for an unobstructed cement plug.

 

How it Works
How Rigless Downhole Tubing Disposal Works and uses Fluid Space in Casing

 

Combinations of API & ISO standard conventional Oilfield Country Tubular Goods (OGTC) tubing and casing combinations have 80% to 90% liquid space within the casing as shown above.  Splitting and/or weakening the tubing along its axis (vertically) allows a piston to spear a whole piece of tubing within a vertically cut piece to create a Plug and Abandonment (P&A) logging and cementing space without using a drilling rig (rigless).

 

Vertical Tubular Cutting

 

Proven downhole cutting wheels are available which can be connected to a skate as shown below and deployed from slickline or electric wireline.  Hoisting the cutting wheels up and down can split, weaken and/or shred tubing or casing vertically.

 

Splitting and Shrading Tubulars Vertically with a Hinge Effect
Vertical Cutter Skate Extended and Retracted Downhole

 

A compressed spring extends a skate with circular cutting wheels that are rolled up and down by lifting and lowering the tool within the well, to vertically cut a tubular form within the well to either split or shred the steel tubing or casing.

 

Vertical Cutter Parts

 

The vertical cutter uses a central shaft that is pushed by a spring drive sub-assembly (not shown here) which is compressed by commercial hydrostatic actuator at a desired depth, to extend the skate that holds the cutting wheels that are rolled up-and-down to cut steel tubulars in the well.

 

We're Oilfield... innovations of vertical cutter parts
Compacting Split Tubing
Before and After Compacting Split Tubing Downhole in Well P&A

 

Once the tubular is longitudinally split, a whole tubular piece can be driven into and splay the split tubular to provide at least a 50% compaction ratio.  Commercially available downhole packers, which work like the tyres (tires) on your car, can be used as a piston to drive the whole tubular into the split tubular.

 

Thru-Tubing Logging after Compaction creates and unobstructed space

 

If you are unsure if adequate primary cement exists behind the casing, commercially available cement bond logging tools can be used within the space created by compaction to confirm the primary cementation prior to setting a cement plug.  If insufficient cement exists behind the casing, the primary cementation can be placed and/or repaired.

 

Thru-Tubing Logging within an unobstructed cementing and logging space created by rigless abandonment method
Thru-Tubing Casing Cement Repair

 

Poor and/or missing cementation can be repaired by shredding the tubular casing with our vertical cutter to turn the longitudinal strands of casing into rebar-like steel that provides a better cement plug than can be provided by a drilling rig after milling because it retains the properties of cement but is stronger.

 

Rigless Thru-Tubing Casing Cement Repair by shredding the tubing to create reinforced concrete P&A Plug
Sail-Effect of Shredded Casing Cement Repair
Sail Effect moves shredded casing strands shaped like sails to clean ane embed casing in P&A cement plug

 

Vertically cutting the casing into long "guitar string" strands that are shaped like the sail of a boat cause the strands to vibrate when dense liquid like cement or cleaning liquid passes between the strings.  The vibration of the strands allows cleaning liquids and cement to flow around and encase the strands to provide a clean wettable surface that cleans the area around the casing and bonds the cement to the surfaces within the well bore to provide a stronger cement plug than can be placed by a drilling rig.

 

Economics that Benefit Everyone

 

The economics of our patented method benefit the Environment, Oil & Gas Operators and Services Companies because the resource cost of the method is significantly less than the present method of drilling rig abandonments.  Service Companies Benefit from the Patents and are able to provide significant savings to Oil & Gas Operators by performing well abandonments in a safer, lower cost and more environmentally friendly manner.  We are presently farming down our 100% interest in exchange for a per use royalty interest.  Please contact us if you are interested in developing this technology in exchange for our patent rights.

 

We're Oilfield... innovations which are economically viable and benefit everyone
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Disclaimers: Oilfield Innovations Limited (OILtd) does not promise that the site or any content, service or feature of the site or new technology will be error-free or that any defects will be corrected, or that your use of the site or technology will provide specific results. The site and its content are delivered on an “as-is” and “as-available” basis. All information provided on the site is subject to change without notice. OILtd cannot ensure that any files or other data you download from the site will be free of viruses or contamination or destructive features. OILtd disclaims all warranties, express or implied, including any warranties of accuracy, non-infringement, merchantability and fitness for a particular purpose. OILtd disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site and/or any OILtd technologies or services. You assume total responsibility for your use of the site and any linked sites or new technologies. Your sole remedy against OILtd for dissatisfaction with the site or any content is to stop using the site or any such content or technology. This limitation of relief is a part of the bargain between the parties. The above disclaimer applies to any damages, liability or injuries caused by any failure of performance, error, omission, interruption, deletion, defect, delay in operation or transmission, computer virus, communication line failure, theft or destruction of or unauthorized access to, alteration of, or use, whether for breach of contract, tort, negligence or any other cause of action. OILtd reserves the right to do any of the following, at any time, without notice: (1) to modify, suspend or terminate operation of or access to the Site, or any portion of the Site, for any reason; (2) to modify or change the Site, or any portion of the Site, and any applicable policies or terms; and (3) to interrupt the operation of the Site, or any portion of the Site, as necessary to perform routine or non-routine maintenance, error correction, or other changes.

 

 

 

Rigless Well Abandonment P&A
Thru-Tubing Rigless Subsea P&A
Rigless P&A Downhole Tubing Disposal Overview of Method
Method Confirmed
Rigless P&A Downhole Tubing Disposal Method Verified and Validated
How it Works
How Rigless Downhole Tubing Disposal Works and uses Fluid Space in Casing
Vertical Tubular Cutting
Splitting and Shrading Tubulars Vertically with a Hinge Effect
Vertical Cutter Skate Extended and Retracted Downhole
Vertical Cutter Parts
We're Oilfield... innovations of vertical cutter parts
Compacting Split Tubing
Before and After Compacting Split Tubing Downhole in Well P&A
Thru-Tubing Logging after Compaction creates and unobstructed space
Thru-Tubing Logging within an unobstructed cementing and logging space created by rigless abandonment method
Thru-Tubing Casing Cement Repair
Rigless Thru-Tubing Casing Cement Repair by shredding the tubing to create reinforced concrete P&A Plug
Sail-Effect of Shredded Casing Cement Repair
Sail Effect moves shredded casing strands shaped like sails to clean ane embed casing in P&A cement plug
Economics that Benefit Everyone
We're Oilfield... innovations which are economically viable and benefit everyone
Rigless Well Abandonment P&A
Thru-Tubing Rigless Subsea P&A
Rigless P&A Downhole Tubing Disposal Overview of Method
Method Confirmed
Rigless P&A Downhole Tubing Disposal Method Verified and Validated
How it Works
How Rigless Downhole Tubing Disposal Works and uses Fluid Space in Casing
Vertical Tubular Cutting
Splitting and Shrading Tubulars Vertically with a Hinge Effect
Vertical Cutter Skate Extended and Retracted Downhole
Vertical Cutter Parts
We're Oilfield... innovations of vertical cutter parts
Compacting Split Tubing
Before and After Compacting Split Tubing Downhole in Well P&A
Thru-Tubing Logging after Compaction creates and unobstructed space
Thru-Tubing Logging within an unobstructed cementing and logging space created by rigless abandonment method
Thru-Tubing Casing Cement Repair
Rigless Thru-Tubing Casing Cement Repair by shredding the tubing to create reinforced concrete P&A Plug
Sail-Effect of Shredded Casing Cement Repair
Sail Effect moves shredded casing strands shaped like sails to clean ane embed casing in P&A cement plug
Economics that Benefit Everyone
We're Oilfield... innovations which are economically viable and benefit everyone
Rigless Well Abandonment P&A
Thru-Tubing Rigless Subsea P&A
Rigless P&A Downhole Tubing Disposal Overview of Method
Method Confirmed
Rigless P&A Downhole Tubing Disposal Method Verified and Validated
How it Works
How Rigless Downhole Tubing Disposal Works and uses Fluid Space in Casing
Vertical Tubular Cutting
Splitting and Shrading Tubulars Vertically with a Hinge Effect
Vertical Cutter Skate Extended and Retracted Downhole
Vertical Cutter Parts
We're Oilfield... innovations of vertical cutter parts
Compacting Split Tubing
Before and After Compacting Split Tubing Downhole in Well P&A
Thru-Tubing Logging after Compaction creates and unobstructed space
Thru-Tubing Logging within an unobstructed cementing and logging space created by rigless abandonment method
Thru-Tubing Casing Cement Repair
Rigless Thru-Tubing Casing Cement Repair by shredding the tubing to create reinforced concrete P&A Plug
Sail-Effect of Shredded Casing Cement Repair
Sail Effect moves shredded casing strands shaped like sails to clean ane embed casing in P&A cement plug
Economics that Benefit Everyone
We're Oilfield... innovations which are economically viable and benefit everyone
Rigless Well Abandonment P&A
Thru-Tubing Rigless Subsea P&A
Rigless P&A Downhole Tubing Disposal Overview of Method
Method Confirmed
Rigless P&A Downhole Tubing Disposal Method Verified and Validated
How it Works
How Rigless Downhole Tubing Disposal Works and uses Fluid Space in Casing
Vertical Tubular Cutting
Splitting and Shrading Tubulars Vertically with a Hinge Effect
Vertical Cutter Skate Extended and Retracted Downhole
Vertical Cutter Parts
We're Oilfield... innovations of vertical cutter parts
Compacting Split Tubing
Before and After Compacting Split Tubing Downhole in Well P&A
Thru-Tubing Logging after Compaction creates and unobstructed space
Thru-Tubing Logging within an unobstructed cementing and logging space created by rigless abandonment method
Thru-Tubing Casing Cement Repair
Rigless Thru-Tubing Casing Cement Repair by shredding the tubing to create reinforced concrete P&A Plug
Sail-Effect of Shredded Casing Cement Repair
Sail Effect moves shredded casing strands shaped like sails to clean ane embed casing in P&A cement plug
Economics that Benefit Everyone
We're Oilfield... innovations which are economically viable and benefit everyone