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Downhole Gas Sperator and Solids Control Device

IP.com Disclosure Number: IPCOM000237693D
Publication Date: 2014-Jul-02
Document File: 2 page(s) / 118K

Publishing Venue

The IP.com Prior Art Database

Abstract

Production intervals in unconventional liquids rich reservoirs can be challenging. As the well matures the risk of solids and gas intrusion disrupts desired flow regime. As these mature wells are put on artificial lift to help overall production, this intrusion of gas and solids has a negative effect on pump performance. Rockies completion engineers have developed a device that utilizes existing wellbore construction equipment to help mitigate risks of solids intrusion and increase overall pump efficiencies. The device utilizes existing field proven technology from multiple product lines to form a system that can provide a high level of value to the customer. Utilizing existing WBC, Sand Control, and Cased Hole Completions equipment to develop a one trip downhole gas and solids separation device. Utilizing existing liner top equipment as a permanent datum point for all future installs. The system is deployed on a workover rig (when in production mode), and stung into the existing liner top packer (liner top release profile HR or 2RH), tension is applied against the production string, and the downhole separator is shear released from the running string. A 1.500" or 1.66" NU 30-60' long dip tube is shear pinned to the separator BHA. Once the assembly is latched into the liner top and shear released, then the dip tube is spaced out and lowered to 3-5' above the existing liner top. This will create 30-60 ft of overlap between the bottom of the (1.5" - 1.660" OD) dip tube and the top of the separator device. The top of the separator device will be positioned 30-60' above existing liner top and will feature a 2-3/8" tubular OD with a 1.995" ID. As multiphase fluid is produced up thru the separator top, gas will continue to migrate to surface leaving the bottom of the dip tube submerged in fluid. Gas and Solids separation is maximized by using available wellbore inside area as the main separation zone. Fluids recovery is maximized by using the existing liner top as the primary anchor point in the artificial lift system. This allows for a much deeper initial pump inlet install. An excluder or XP wrap sand screen can be added to the assembly to help mitigate solids production. Redundant release and retrieval mechanisms mitigate the risk of sticking tools in the wellbore. The separator initial shear release and dip tube assemblies can be removed from the assembly. This would allow one to use the assembly as a conventional tubing anchor catcher for conventional pumping wells. a number of 2-3/8" joints can be made up below the liner top anchor device and used to deploy out into a lateral in attempts to improve recovery methods. This will allow one to keep the pump inlet submerged in fluid for a much longer period of time versus conventional methods that are limited to positioned artificial lift equipment in the vertical only.

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Downhole Gas Sperator and Solids Control Device

Production intervals in unconventional liquids rich reservoirs can be challenging. As the well matures the risk of solids and gas intrusion disrupts desired flow regime. As these mature wells are put on artificial lift to help overall production, this intrusion of gas and solids has a negative effect on pump performance. Rockies completion engineers have developed a device that utilizes existing wellbore construction equipment to help mitigate risks of solids intrusion and increase overall pump efficiencies. The device utilizes existing field proven technology from multiple product lines to form a system that can provide a high level of value to the customer.

Utilizing existing WBC, Sand Control, and Cased Hole Completions equipment to develop a one trip downhole gas and solids separation device. Utilizing existing liner top equipment as a permanent datum point for all future installs. The system is deployed on a workover rig (when in production mode), and stung into the existing liner top packer (liner top release profile HR or 2RH), tension is applied against the production string, and the downhole separator is shear released from the running string. A 1.500" or 1.66" NU 30-60' long dip tube is shear pinned to the separator BHA. Once the assembly is latched into the liner top and shear released, then the dip tube is spaced out and lowered to 3-5' above the existing liner top. This will create 30-60 ft of overlap between the bottom of the (1.5" - 1.660" OD) dip tube and the top of the separator device....