Product Overview
The Drop-Ball-Free Lock-Out Sleeve Pump Plug integrated dual-module coiled tubing velocity string running downhole barrier plug is a multi-function downhole fluid isolation tool developed for coiled tubing velocity string installation permanent hanging construction operations.
This drop-ball-free lock-out sleeve pump plug is installed at the bottom end of the coiled tubing string before running the velocity string into the wellbore; two independent functional modules are pre-installed inside the plug body: lock-out sliding sleeve assembly and single ball one-way check valve module. During long-term velocity string suspended service, the lock-out sleeve remains in upper retracted unlocked position, the sleeve does not cover or block the single check valve, the single ball one-way valve keeps full bore unrestricted internal fluid passage open to realize normal smooth downhole circulation during long-term velocity string hanging. When the coiled tubing velocity string needs to be fully retrieved from the well later, drop a sealing ball from the surface pipeline, the ball lands and seats on the built-in ball seat at the bottom of the plug; increase surface pumping pressure to reach the preset shear pin breaking threshold, the hydraulic thrust generated by pressure difference pushes the lock-out sleeve to slide downward along the plug inner cavity, the sliding sleeve fully covers and compresses the single ball one-way check valve module to close the valve flow channel, forming reliable secondary downhole fluid sealing barrier to isolate wellbore annulus pressure for safe subsequent velocity string lifting and recovery operation. The shear pin breaking pressure threshold can be freely customized and adjusted according to different downhole well pressure construction environment requirements; the plug body adopts full bore unrestricted internal fluid passage design, no narrow throttling structure inside the inner bore, maintaining complete full-diameter flow channel to reduce fluid circulation resistance during normal service; all standard specifications adopt STD standard working condition configuration, equipped with standard Roll-On type connecting thread, four matching coiled tubing outer diameter sizes are available: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch, each CT OD corresponds to fixed overall make-up length dimension.
The Drop-Ball-Free Lock-Out Sleeve Pump Plug has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, with extremely simplified wellsite operation flow and low maintenance cost; construction crews only need to connect the lock-out sleeve pump plug to the bottom end of the coiled tubing string via Roll-On connector, run the whole tool string down along the tubing inner wall to the predetermined underground suspension depth, during long-term velocity string suspended service the lock-out sleeve stays retracted and single check valve maintains full bore circulation for daily well fluid circulation operations; when later velocity string retrieval is required, drop sealing ball from surface, raise pumping pressure to shear the preset shear pin and push lock-out sleeve downward to fully close the single check valve module and form secondary downhole sealing barrier, then lift the coiled tubing string together with the whole pump plug out of the wellbore to finish full velocity string recovery operation, no additional complex auxiliary operation steps such as separate unlocking dart delivery or multi-stage shear operation are needed, shortening wellsite operation time and reducing human error risks.
The standardized product lineup covers four standard matching coiled tubing outer diameter sizes of 1-1/4", 1-1/2", 1-3/4" and 2", each CT OD corresponds to fixed overall make-up length dimension, all models adopt STD standard working condition configuration, unified standard Roll-On type connecting thread; custom shear pin breaking pressure threshold, matching coiled tubing outer diameter size and internal lock-out sleeve sliding stroke structural form customization are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | Matching Coiled Tubing Outer Diameter (CT OD) | Plug Inner Bore ID | Overall Make-Up Length | Working Condition Grade | Standard Connection Thread |
|---|---|---|---|---|---|
| L5291250120 | 1-1/4" | 0.4" | 12.5" | STD Standard | Roll-On Connector |
| L5291500120 | 1-1/2" | 0.56" | 13.9" | STD Standard | Roll-On Connector |
| L5291750120 | 1-3/4" | 0.76" | 15.5" | STD Standard | Roll-On Connector |
| L5292000120 | 2" | 0.96" | 17.2" | STD Standard | Roll-On Connector |
Note: Custom shear pin breaking pressure threshold specifications, matching coiled tubing outer diameter sizes and internal lock-out sleeve sliding stroke structural form modifications are available via engineering consultation. All standard specifications adopt STD standard working condition configuration, unified standard Roll-On type connecting thread; four standard matching coiled tubing outer diameter sizes are provided: 1-1/4", 1-1/2", 1-3/4", 2", each CT OD corresponds to fixed overall make-up length dimension and fixed plug inner bore ID size.
Core Features & Advantages
Integrated Dual Functional Module Design: Both lock-out sliding sleeve assembly and single ball one-way check valve module are pre-installed inside the plug body, two independent working states are realized by single tool: full bore unrestricted fluid circulation during normal long-term velocity string suspended service, and secondary downhole fluid sealing barrier via lock-out sleeve downward sliding valve closing during later velocity string retrieval, integrating two core construction functions into one single plug component.
Retracted Unlocked Lock-Out Sleeve Full Bore Flow Design During Normal Hanging Service: The lock-out sliding sleeve stays in upper retracted unlocked position during normal velocity string suspended service, the sleeve does not cover or block the single ball one-way check valve, the single ball valve keeps complete full bore internal fluid passage open, no narrow throttling structure exists inside the plug inner bore, effectively reducing fluid circulation resistance and guaranteeing smooth unobstructed downhole circulation during long-term suspended service.
Drop Ball Shear Pin Actuated Sleeve Downward Valve Closing Secondary Sealing Design: When later velocity string retrieval operation is required, only need to drop a single sealing ball from surface pipeline; after the ball seats on the built-in plug ball seat, raising pumping pressure to reach the preset shear pin breaking threshold generates hydraulic thrust to push the lock-out sleeve to slide downward along the plug inner cavity, the sliding sleeve fully covers and compresses the single ball one-way check valve module to permanently close the valve flow channel, forming reliable secondary downhole fluid sealing barrier to completely isolate wellbore annulus fluid pressure for safe subsequent velocity string lifting and recovery operation.
Adjustable Shear Pin Breaking Pressure Threshold Design: The shear pin shear failure threshold can be freely customized and adjusted to match different downhole well pressure construction environment requirements, realizing controllable lock-out sleeve downward sliding actuation action after reaching the predetermined target underground velocity string retrieval pressure value, avoiding accidental premature sleeve sliding caused by abnormal transient wellbore pressure fluctuation during normal suspended service.
Full Bore Unrestricted Internal Fluid Passage Design: The plug body inner bore adopts full bore unrestricted fluid flow channel structural design, no narrow throttling or reducing diameter blocking structure exists inside the inner bore, the inner bore maintains complete full-diameter fluid circulation channel consistent with coiled tubing inner diameter, effectively reducing fluid circulation resistance and pressure loss during normal long-term velocity string suspended service.
Ultra-Simplified Wellsite Operation Logic: The drop-ball-free lock-out sleeve pump plug has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, the operation flow is highly streamlined: connect the lock-out sleeve pump plug to coiled tubing bottom via Roll-On connector, run the tool string down to the predetermined underground velocity string suspension depth, during long-term suspended service the lock-out sleeve stays retracted and single check valve maintains full bore unobstructed fluid circulation for daily well circulation operations; when later velocity string retrieval operation is required, drop a single sealing ball from surface pipeline, raise pumping pressure to shear the preset shear pin and push the lock-out sleeve downward to fully cover and close the single ball one-way check valve module, forming reliable secondary downhole fluid sealing barrier to isolate wellbore annulus pressure for subsequent velocity string lifting and recovery work, no complex auxiliary operation steps such as separate unlocking dart delivery or multi-stage shear operation are needed to shorten wellsite operation time and reduce human error risks.
Low Routine Maintenance Design: The integral cylindrical alloy steel plug body eliminates vulnerable split assembly movable wear parts; after each wellhead coiled tubing velocity string installation construction operation, only simple surface circulating fluid debris cleaning and internal lock-out sleeve sliding surface & single ball check valve sealing contact surface wear inspection are required, no complex disassembly, internal lock-out sleeve or single ball valve component replacement or spring preload adjustment maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Application Scenarios
1. Coiled tubing velocity string installation permanent hanging multi-function heavy-load intervention treatments, including long-term full bore unobstructed fluid circulation during velocity string suspended service, drop ball shear pin actuated lock-out sleeve downward sliding valve closing secondary downhole sealing barrier for later velocity string lifting and recovery remedial workover construction operations
2. Conventional sweet crude oilfield STD standard drop-ball-free lock-out sleeve pump plug velocity string installation permanent hanging remedial workover service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project velocity string installation permanent hanging multi-function heavy workover projects requiring H₂S sour service anti-sulfide stress corrosion alloy material grade
4. Long-term continuous lock-out sleeve retracted full bore circulation load safety protection for downhole velocity string installation plug assemblies in onshore and offshore oilfield coiled tubing remedial workover intervention projects
Standard Delivery Package
Complete integrated dual-module drop-ball-free lock-out sleeve pump plug integral cylindrical pre-assembled unit including main plug body, internal lock-out sliding sleeve assembly, single ball one-way check valve module and preset adjustable shear pin
Spare interchangeable shear pin maintenance kit for on-site shear pin breaking pressure threshold adjustment and worn shear pin replacement
Full factory inspection test report including repeated lock-out sleeve sliding stroke actuation load fatigue resistance test, integral tensile load test, different shear pin breaking pressure threshold shear performance calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site coiled tubing velocity string installation permanent hanging construction operation guidance, with clear confirmation reminder for shear pin breaking pressure threshold selection according to different downhole well pressure construction environment demands during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative lock-out sleeve sliding stroke actuation load cycles, whichever condition is reached first
Full factory inspection: Each finished integrated dual-module drop-ball-free lock-out sleeve pump plug passes integral tensile load test, repeated lock-out sleeve sliding stroke actuation load fatigue test, different shear pin breaking pressure threshold shear performance calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing velocity string installation permanent hanging remedial workover tool string matching, matching coiled tubing outer diameter size & shear pin breaking pressure threshold selection consultation free of charge
Long-term spare parts supply: All interchangeable shear pin wear maintenance accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom matching coiled tubing outer diameter sizes, customized shear pin breaking pressure threshold specifications, internal lock-out sleeve sliding stroke structural form adjustment, base material corrosion resistance grade modification and special size integrated dual-module drop-ball-free lock-out sleeve pump plugs based on customer technical drawings
FAQ
Q1: What is the core function of a Drop-Ball-Free Lock-Out Sleeve Pump Plug Integrated Dual-Module Coiled Tubing Velocity String Running Downhole Barrier Plug?
The Drop-Ball-Free Lock-Out Sleeve Pump Plug integrated dual-module coiled tubing velocity string running downhole barrier plug is a multi-function downhole fluid isolation tool developed for coiled tubing velocity string installation permanent hanging construction operations. This drop-ball-free lock-out sleeve pump plug is installed at the bottom end of the coiled tubing string before running the velocity string into the wellbore; two independent functional modules are pre-installed inside the plug body: lock-out sliding sleeve assembly and single ball one-way check valve module. During long-term velocity string suspended service, the lock-out sleeve remains in upper retracted unlocked position, the sleeve does not cover or block the single check valve, the single ball one-way valve keeps full bore unrestricted internal fluid passage open to realize normal smooth downhole circulation during long-term velocity string hanging. When the coiled tubing velocity string needs to be fully retrieved from the well later, drop a sealing ball from the surface pipeline, the ball lands and seats on the built-in ball seat at the bottom of the plug; increase surface pumping pressure to reach the preset shear pin breaking threshold, the hydraulic thrust generated by pressure difference pushes the lock-out sleeve to slide downward along the plug inner cavity, the sliding sleeve fully covers and compresses the single ball one-way check valve module to close the valve flow channel, forming reliable secondary downhole fluid sealing barrier to isolate wellbore annulus pressure for safe subsequent velocity string lifting and recovery operation. The shear pin breaking pressure threshold can be freely customized and adjusted according to different downhole well pressure construction environment requirements; the plug body adopts full bore unrestricted internal fluid passage design, no narrow throttling structure inside the inner bore, maintaining complete full-diameter flow channel to reduce fluid circulation resistance during normal service; all standard specifications adopt STD standard working condition configuration, equipped with standard Roll-On type connecting thread, four matching coiled tubing outer diameter sizes are available: 1-1/4 inch, 1-1/2 inch, 1-3/4 inch and 2 inch. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for coiled tubing velocity string installation permanent hanging multi-function heavy-load intervention treatments, including long-term full bore unobstructed fluid circulation during velocity string suspended service, drop ball shear pin actuated lock-out sleeve downward sliding valve closing secondary downhole sealing barrier for later velocity string lifting and recovery remedial workover construction operations.
Q2: What three core structural advantages does this Drop-Ball-Free Lock-Out Sleeve Pump Plug Integrated Dual-Module Coiled Tubing Velocity String Running Downhole Barrier Plug own?
1. Integrated dual functional module design, both lock-out sliding sleeve assembly and single ball one-way check valve module are pre-installed inside the plug body, two independent working states are realized by single tool: full bore unrestricted fluid circulation during normal long-term velocity string suspended service, and secondary downhole fluid sealing barrier via lock-out sleeve downward sliding valve closing during later velocity string retrieval, integrating two core construction functions into one single plug component; 2. Retracted unlocked lock-out sleeve full bore flow design during normal hanging service, the lock-out sliding sleeve stays in upper retracted unlocked position during normal velocity string suspended service, the sleeve does not cover or block the single ball one-way check valve, the single ball valve keeps complete full bore internal fluid passage open, no narrow throttling structure exists inside the plug inner bore, effectively reducing fluid circulation resistance and guaranteeing smooth unobstructed downhole circulation during long-term suspended service; 3. Drop ball shear pin actuated sleeve downward valve closing secondary sealing design & ultra-simplified wellsite operation logic, when later velocity string retrieval operation is required, only need to drop a single sealing ball from surface pipeline; after the ball seats on the built-in plug ball seat, raising pumping pressure to reach the preset shear pin breaking threshold generates hydraulic thrust to push the lock-out sleeve to slide downward along the plug inner cavity, the sliding sleeve fully covers and compresses the single ball one-way check valve module to permanently close the valve flow channel, forming reliable secondary downhole fluid sealing barrier to completely isolate wellbore annulus fluid pressure for safe subsequent velocity string lifting and recovery operation; the drop-ball-free lock-out sleeve pump plug has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, only need to connect the lock-out sleeve pump plug to coiled tubing bottom via Roll-On connector, run the tool string down to the predetermined underground velocity string suspension depth, during long-term suspended service the lock-out sleeve stays retracted and single check valve maintains full bore unobstructed fluid circulation for daily well circulation operations; when later velocity string retrieval operation is required, drop a single sealing ball from surface pipeline, raise pumping pressure to shear the preset shear pin and push the lock-out sleeve downward to fully cover and close the single ball one-way check valve module, forming reliable secondary downhole fluid sealing barrier to isolate wellbore annulus pressure for subsequent velocity string lifting and recovery work, no complex auxiliary operation steps such as separate unlocking dart delivery or multi-stage shear operation are needed to shorten wellsite operation time and reduce human error risks; the product also features full bore unrestricted internal fluid passage design and integral cylindrical alloy steel plug body low maintenance design to further expand applicable construction scope and reduce post-operation maintenance workload.
Q3: What matching coiled tubing outer diameter sizes and configurable options do these Drop-Ball-Free Lock-Out Sleeve Pump Plug Integrated Dual-Module Coiled Tubing Velocity String Running Downhole Barrier Plugs support?
Our standard applicable matching coiled tubing outer diameter size range covers 1-1/4", 1-1/2", 1-3/4", 2". Each matching size supports two independent configurable options for free matching selection: adjustable shear pin breaking pressure threshold, internal lock-out sleeve sliding stroke structural form. All models support custom raw material corrosion resistance grade specifications upon customer request. The unified standard Roll-On type connecting thread is adopted for all standard models, four standard matching coiled tubing outer diameter sizes correspond to fixed overall make-up length dimensions and fixed plug inner bore ID sizes respectively. Two independent working condition material grade versions are also optional for each matching size: STD standard carbon steel working condition grade and H₂S sour service high-corrosion-resistant alloy working condition grade. Custom shear pin breaking pressure threshold specifications and internal lock-out sleeve sliding stroke structural form adjustments are available upon customer downhole wellbore fluid H₂S concentration corrosive environment construction demands.
Q4: What is the standard production lead time for bulk purchase orders?
All standard PN part numbers are kept in factory inventory, goods can be delivered within 7–15 working days. Customized integrated dual-module drop-ball-free lock-out sleeve pump plugs with special matching coiled tubing outer diameter sizes or customized shear pin breaking pressure threshold specifications, internal lock-out sleeve sliding stroke structural form adjustments, base material corrosion resistance grade modifications require 20–35 working days production cycle, subject to total order quantity and customization scope.
Get Custom Datasheet & Factory Quote
We are a professional OEM & ODM manufacturer focused on full series coiled tubing velocity string installation permanent hanging multi-function heavy-load intervention treatment service tools, covering integrated dual-module drop-ball-free lock-out sleeve pump plugs, hydraulic remote control wellhead suspension hangers, bypass flow divider valves, hydraulic pulse vibration shock exciters, thru-tubing hydraulic retractable blade underreamers, tapered pear conical pilot milling shoes, concave recessed milling shoes, five-blade five-wing milling shoes, flat bottom milling shoes, combination flat blade milling shoes, muncher multi-cutting milling shoes, convex nose pilot milling shoes, bi-directional reciprocating impact hammers, coiled tubing positive displacement drill motors, downhole gas-liquid separators, impact hammers, magnetic fishing rods, magnetic junk retrieval magnets, venturi junk baskets, flow activated releasable fishing overshots, flow activated releasable fishing spears, flow activated releasable JDC running/pulling tools, flow activated releasable GS fishing tools, bi-direction mechanical accelerators, bi-direction hydraulic accelerators, bi-direction hydraulic jars, up-stroke hydraulic jars, bi-direction mechanical jars, up-stroke mechanical jars, wireline grabs, wireline spears and all other supporting downhole fishing, jarring, anchoring and washing service tools. Every finished product undergoes strict factory tensile load, repeated lock-out sleeve sliding stroke actuation load fatigue, different shear pin breaking pressure threshold shear performance calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target matching coiled tubing outer diameter size, required shear pin breaking pressure threshold, downhole wellbore fluid H₂S concentration corrosive environment construction conditions, working environment and all customized specification demands. Our dedicated oilfield downhole tool engineering team will send complete detailed technical datasheets and competitive factory wholesale quotations within 24 business hours, and provide professional on-site coiled tubing velocity string installation permanent hanging construction operation guidance, with clear confirmation reminder for shear pin breaking pressure threshold selection according to different downhole well pressure construction environment demands during order placement.
