Product Overview
The Differential Jetting Sub sliding sleeve controlled downhole sand jet perforating tool is a multi-function sliding sleeve type downhole sand jet perforation construction tool applicable to all oilfield perforation operation processes.
This differential jetting sub is installed at the bottom end of the coiled tubing or jointed tubing tool string before running the tool string into the wellbore for perforation construction; during the whole running-in trip, the built-in internal sliding sleeve assembly stays in upper locked closed position, completely blocking and sealing off all internal perforating jet flow passages, preventing wellbore formation fluid from flowing upward into the tool string inner bore and avoiding premature sand erosion wear damage to the jet nozzles during running-in transportation. After the whole tool string is lowered to the predetermined underground target perforation suspension depth, two independent actuation triggering modes are available for selection according to on-site construction scheme: Mode 1: drop sealing ball from surface pipeline, the ball lands and seats on the built-in ball seat at the bottom of the sliding sleeve, raising surface pumping pressure to reach the preset shear pin breaking threshold, the pressure difference pushes the sliding sleeve to slide downward along the plug inner cavity, fully uncovering all jet nozzle openings to open complete through hydraulic perforation fluid circulation channel; Mode 2: direct pure hydraulic pressure differential drive without ball delivery, continuously raise surface pumping pressure to form enough pressure difference between tool inner bore and annulus to directly push the sliding sleeve downward and open the jet nozzles. After the sliding sleeve slides down to the fully open position, high-pressure sand-laden perforating fluid can be pumped from surface through the tool string inner bore and ejected from all opened jet nozzles to perform continuous downhole sand jet perforation construction work. The product adopts optimized internal load-bearing structural design and advanced special integrated anti-corrosion anti-scouring surface finishing technology, which greatly enhances the tool’s comprehensive resistance to high-speed reverse sand flow impact and erosion damage generated during sand jet perforation operation, effectively extending the tool’s service life under severe downhole sand fluid scouring working conditions. The total number of jet nozzles and their circumferential installation layout phase angles can be freely customized and adjusted according to different well perforation trajectory design requirements, realizing flexible perforation coverage distribution matching various reservoir development plans. Three standard matching outer casing outer diameter sizes are supported: 4-1/2 inch, 5 inch and 5-1/2 inch, each casing OD corresponds to fixed overall total length dimension and preset number of perforating stage sections, all models adopt STD standard working condition configuration, and all thread connection types can be fully customized to meet special customer well construction specification requirements.
The Differential Jetting Sub 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 differential jetting sub to the bottom end of the coiled tubing or jointed tubing tool string via customized thread connector, run the whole tool string down along the tubing inner wall to the predetermined underground target perforation suspension depth; during the whole running-in trip, the sliding sleeve stays in upper closed position to fully seal off all jet flow passages and protect nozzles from premature erosion; after reaching target depth, select either ball-drop shear pin actuation or direct hydraulic pressure differential drive mode to push sliding sleeve downward and fully open all jet nozzle openings, forming complete through hydraulic perforation fluid circulation channel, then pump high-pressure sand-laden perforating fluid from surface through the tool string inner bore to eject from the opened jet nozzles and perform continuous downhole sand jet perforation construction work; after the perforation construction work is fully completed, lift the whole tool string together with the differential jetting sub out of the wellbore to finish operation, no additional complex auxiliary operation steps such as secondary dart delivery or multi-stage shear pin triggering are needed, shortening wellsite operation time and reducing human error risks.
The standardized product lineup covers three standard matching outer casing outer diameter sizes of 4-1/2", 5" and 5-1/2", each casing OD corresponds to fixed overall total length dimension and preset number of perforating stage sections, all models adopt STD standard working condition configuration, unified standard base thread specification with fully customizable alternative connection threads; custom shear pin breaking pressure threshold, jet nozzle quantity & circumferential layout phase angles and internal sliding sleeve stroke structural form customization are available upon customer technical drawing submission.
Complete Technical Specification Table
| PN Part Number | Matching Outer Casing Outer Diameter (Casing OD) | Plug Inner Bore ID | Overall Total Make-Up Length | Preset Number Of Perforating Stages | Working Condition Grade | Thread Customization |
|---|---|---|---|---|---|---|
| L5283860120 | 5-1/2" | 1.54" | 16.56" | 5 | STD Standard | Fully Customizable |
| L5283150120 | 5" | 1.30" | 14.17" | 4 | STD Standard | Fully Customizable |
| L5282560120 | 4-1/2" | 0.86" | 13.58" | 3 | STD Standard | Fully Customizable |
Note: All thread connection specifications can be fully customized to meet customer special downhole tool matching requirements. Custom shear pin breaking pressure threshold specifications, jet nozzle quantity & circumferential layout phase angle adjustments and internal sliding sleeve stroke structural form modifications are available via engineering consultation. All standard specifications adopt STD standard working condition configuration; three standard matching outer casing outer diameter sizes are provided: 4-1/2", 5", 5-1/2", each casing OD corresponds to fixed overall total make-up length dimension and preset number of perforating stage sections.
Core Features & Advantages
Built-In Sliding Sleeve Full Closed Jet Flow Passage Design For Running-In Protection: The independent internal sliding sleeve assembly is pre-installed inside the plug body, the sliding sleeve remains in upper locked closed position during the entire tool string running-in trip, completely blocking and sealing off all internal perforating jet flow passages, effectively preventing wellbore formation fluid from flowing upward into the tool string inner bore and avoiding premature sand erosion wear damage to the jet nozzles during running-in transportation, reducing tool premature failure risks.
Dual Independent Actuation Trigger Modes Optional For Flexible Construction Schemes: Two different downhole actuation triggering structural designs are provided for user free selection according to different on-site well construction operation requirements: Mode one: surface drop sealing ball + shear pin breaking actuation mode, suitable for high-pressure deep well construction conditions; Mode two: direct pure hydraulic pressure differential drive actuation mode without sealing ball delivery, simplifying surface operation flow and eliminating ball delivery auxiliary procedures.
Optimized Internal Load-Bearing Structural Design + Advanced Special Anti-Corrosion Anti-Scour Surface Finishing Dual Anti-Damage Protection System: The internal force-bearing structural layout of the plug body is fully optimized to balance internal pressure load distribution and reduce local stress concentration; the outer cylindrical surface of the entire plug body adopts advanced integrated special anti-corrosion anti-scouring protective finishing technology, which greatly enhances the tool’s comprehensive resistance to high-speed reverse sand flow impact and erosion damage generated during sand jet perforation operation, effectively extending the tool’s service life under severe downhole sand fluid scouring working conditions and reducing post-operation tool replacement maintenance costs.
Fully Customizable Jet Nozzle Layout Design: Both the total number of jet nozzles and their circumferential installation layout phase angles can be freely customized and adjusted according to different well perforation trajectory design requirements, realizing flexible perforation coverage distribution matching various reservoir development plans and different wellbore structural characteristic parameters.
Three Standard Matching Outer Casing Outer Diameter Size Series: Three standard matching outer casing outer diameter size specifications are provided to cover mainstream oilfield casing sizes: 4-1/2", 5", 5-1/2", each casing OD corresponds to fixed overall total length dimension and preset number of perforating stage sections, convenient for standardized wellsite tool string assembly and matching selection according to on-site casing specifications.
Fully Customizable Thread Connection Specification: All base thread connection specifications of the plug body can be fully customized to meet special customer well construction downhole tool connection matching requirements, adapting to various non-standard coiled tubing and jointed tubing thread types.
Ultra-Simplified Wellsite Operation Logic: The differential jetting sub has no complex internal movable friction components or spring energy storage assemblies, the operation flow is highly streamlined: connect the differential jetting sub to the bottom end of the coiled tubing or jointed tubing tool string via customized thread connector, run the whole tool string down to the predetermined underground target perforation suspension depth, during the whole running-in trip the sliding sleeve stays in upper closed position to fully seal off all jet flow passages and protect nozzles from premature erosion; after reaching target depth, select either ball-drop shear pin actuation or direct hydraulic pressure differential drive mode to push sliding sleeve downward and fully open all jet nozzle openings, forming complete through hydraulic perforation fluid circulation channel, then pump high-pressure sand-laden perforating fluid from surface through the tool string inner bore to eject from the opened jet nozzles and perform continuous downhole sand jet perforation construction work; after the perforation construction work is fully completed, lift the whole tool string together with the differential jetting sub out of the wellbore to finish operation, no complex auxiliary operation steps such as secondary dart delivery or multi-stage shear pin triggering 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 sand jet perforation construction operation, only simple surface circulating fluid debris cleaning and internal sliding sleeve stroke & jet nozzle inner wall erosion wear inspection are required, no complex disassembly, internal sliding sleeve or jet nozzle component replacement or spring preload adjustment maintenance procedures, greatly reducing daily maintenance labor and spare parts inventory cost.
Application Scenarios
1. All types of oilfield downhole sand jet perforation construction multi-function heavy-load intervention treatments, including running-in nozzle protection, dual-mode actuation sliding sleeve opening, and full-bore reverse circulation sand jet perforation operations
2. Conventional sweet crude oilfield STD standard sliding sleeve differential jetting sub sand jet perforation remedial workover service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project multi-process sand jet perforation heavy workover projects requiring H₂S sour service anti-sulfide stress corrosion alloy material grade
4. Long-term continuous sliding sleeve closed port protection & dual-mode actuation load safety protection for downhole sand jet perforation tool string assemblies in onshore and offshore oilfield coiled tubing / jointed tubing remedial workover intervention projects
Standard Delivery Package
Complete sliding sleeve differential jetting sub integral cylindrical pre-assembled unit including main plug body, built-in internal sliding sleeve assembly, pre-installed jet nozzle groups and internal flow passage structure
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 sliding sleeve downward sliding stroke actuation load fatigue resistance test, integral tensile load test, jet nozzle fluid circulation flow performance calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site downhole sand jet perforation construction operation guidance, with clear confirmation reminder for actuation mode selection, jet nozzle layout parameter setting and thread connection customization requirements according to different well construction operation scheme demands during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative sliding sleeve actuation load cycles, whichever condition is reached first
Full factory inspection: Each finished sliding sleeve differential jetting sub passes integral tensile load test, repeated sliding sleeve downward sliding stroke actuation load fatigue test, jet nozzle fluid circulation flow performance calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing / jointed tubing sand jet perforation remedial workover tool string matching, matching outer casing outer diameter size, actuation mode selection, jet nozzle layout parameter and thread connection customization 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 shear pin breaking pressure threshold specifications, customized jet nozzle quantity & circumferential layout phase angle adjustments, internal sliding sleeve stroke structural form modification, base material corrosion resistance grade modification and special size sliding sleeve differential jetting subs based on customer technical drawings
FAQ
Q1: What is the core function of a Differential Jetting Sub Sliding Sleeve Controlled Downhole Sand Jet Perforating Tool With Closed Port Run-In Protection?
The Differential Jetting Sub sliding sleeve controlled downhole sand jet perforating tool is a multi-function sliding sleeve type downhole sand jet perforation construction tool applicable to all oilfield perforation operation processes. This differential jetting sub is installed at the bottom end of the coiled tubing or jointed tubing tool string before running the tool string into the wellbore for perforation construction; during the whole running-in trip, the built-in internal sliding sleeve assembly stays in upper locked closed position, completely blocking and sealing off all internal perforating jet flow passages, preventing wellbore formation fluid from flowing upward into the tool string inner bore and avoiding premature sand erosion wear damage to the jet nozzles during running-in transportation. After the whole tool string is lowered to the predetermined underground target perforation suspension depth, two independent actuation triggering modes are available for selection according to on-site construction scheme: Mode 1: drop sealing ball from surface pipeline, the ball lands and seats on the built-in ball seat at the bottom of the sliding sleeve, raising surface pumping pressure to reach the preset shear pin breaking threshold, the pressure difference pushes the sliding sleeve to slide downward along the plug inner cavity, fully uncovering all jet nozzle openings to open complete through hydraulic perforation fluid circulation channel; Mode 2: direct pure hydraulic pressure differential drive without ball delivery, continuously raise surface pumping pressure to form enough pressure difference between tool inner bore and annulus to directly push the sliding sleeve downward and open the jet nozzles. After the sliding sleeve slides down to the fully open position, high-pressure sand-laden perforating fluid can be pumped from surface through the tool string inner bore and ejected from all opened jet nozzles to perform continuous downhole sand jet perforation construction work. The product adopts optimized internal load-bearing structural design and advanced special integrated anti-corrosion anti-scouring surface finishing technology, which greatly enhances the tool’s comprehensive resistance to high-speed reverse sand flow impact and erosion damage generated during sand jet perforation operation, effectively extending the tool’s service life under severe downhole sand fluid scouring working conditions. The total number of jet nozzles and their circumferential installation layout phase angles can be freely customized and adjusted according to different well perforation trajectory design requirements, realizing flexible perforation coverage distribution matching various reservoir development plans. Three standard matching outer casing outer diameter sizes are supported: 4-1/2 inch, 5 inch and 5-1/2 inch, each casing OD corresponds to fixed overall total length dimension and preset number of perforating stage sections, all models adopt STD standard working condition configuration, and all thread connection types can be fully customized to meet special customer well construction specification requirements. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for all types of oilfield downhole sand jet perforation construction multi-function heavy-load intervention treatments, including running-in nozzle protection, dual-mode actuation sliding sleeve opening, and full-bore reverse circulation sand jet perforation operations.
Q2: What three core structural advantages does this Differential Jetting Sub Sliding Sleeve Controlled Downhole Sand Jet Perforating Tool With Closed Port Run-In Protection own?
1. Built-in sliding sleeve full closed jet flow passage design for running-in protection, the independent internal sliding sleeve assembly is pre-installed inside the plug body, the sliding sleeve remains in upper locked closed position during the entire tool string running-in trip, completely blocking and sealing off all internal perforating jet flow passages, effectively preventing wellbore formation fluid from flowing upward into the tool string inner bore and avoiding premature sand erosion wear damage to the jet nozzles during running-in transportation, reducing tool premature failure risks; 2. Dual independent actuation trigger modes optional for flexible construction schemes & optimized internal load-bearing structural design plus advanced special anti-corrosion anti-scour surface finishing dual anti-damage protection system, two different downhole actuation triggering structural designs are provided for user free selection according to different on-site well construction operation requirements: Mode one: surface drop sealing ball + shear pin breaking actuation mode, suitable for high-pressure deep well construction conditions; Mode two: direct pure hydraulic pressure differential drive actuation mode without sealing ball delivery, simplifying surface operation flow and eliminating ball delivery auxiliary procedures; the internal force-bearing structural layout of the plug body is fully optimized to balance internal pressure load distribution and reduce local stress concentration; the outer cylindrical surface of the entire plug body adopts advanced integrated special anti-corrosion anti-scouring protective finishing technology, which greatly enhances the tool’s comprehensive resistance to high-speed reverse sand flow impact and erosion damage generated during sand jet perforation operation, effectively extending the tool’s service life under severe downhole sand fluid scouring working conditions and reducing post-operation tool replacement maintenance costs; 3. Fully customizable jet nozzle layout design & three standard matching outer casing outer diameter size series & fully customizable thread connection specification ultra-simplified wellsite operation logic, both the total number of jet nozzles and their circumferential installation layout phase angles can be freely customized and adjusted according to different well perforation trajectory design requirements, realizing flexible perforation coverage distribution matching various reservoir development plans and different wellbore structural characteristic parameters; three standard matching outer casing outer diameter size specifications are provided to cover mainstream oilfield casing sizes: 4-1/2", 5", 5-1/2", each casing OD corresponds to fixed overall total length dimension and preset number of perforating stage sections, convenient for standardized wellsite tool string assembly and matching selection according to on-site casing specifications; all base thread connection specifications of the plug body can be fully customized to meet special customer well construction downhole tool connection matching requirements, adapting to various non-standard coiled tubing and jointed tubing thread types; the differential jetting sub has no complex internal movable friction components or spring energy storage assemblies, only need to connect the differential jetting sub to the bottom end of the coiled tubing or jointed tubing tool string via customized thread connector, run the whole tool string down to the predetermined underground target perforation suspension depth, during the whole running-in trip the sliding sleeve stays in upper closed position to fully seal off all jet flow passages and protect nozzles from premature erosion; after reaching target depth, select either ball-drop shear pin actuation or direct hydraulic pressure differential drive mode to push sliding sleeve downward and fully open all jet nozzle openings, forming complete through hydraulic perforation fluid circulation channel, then pump high-pressure sand-laden perforating fluid from surface through the tool string inner bore to eject from the opened jet nozzles and perform continuous downhole sand jet perforation construction work; after the perforation construction work is fully completed, lift the whole tool string together with the differential jetting sub out of the wellbore to finish operation, no complex auxiliary operation steps such as secondary dart delivery or multi-stage shear pin triggering are needed to shorten wellsite operation time and reduce human error risks; the product also features fully customizable jet nozzle layout design, three standard matching outer casing outer diameter size series and fully customizable thread connection specification to further expand applicable construction scope and reduce on-site operation workload.
Q3: What matching outer casing outer diameter sizes and configurable options do these Differential Jetting Sub Sliding Sleeve Controlled Downhole Sand Jet Perforating Tool With Closed Port Run-In Protection support?
Our standard applicable matching outer casing outer diameter size range covers 4-1/2", 5", 5-1/2". Each casing OD size supports four independent configurable options for free matching selection: shear pin breaking pressure threshold specification, jet nozzle quantity & circumferential layout phase angle adjustment, internal sliding sleeve stroke structural form modification, base material corrosion resistance grade. All models support fully customizable thread connection specifications upon customer request. Three standard matching outer casing outer diameter sizes correspond to fixed overall total make-up length dimensions and preset number of perforating stage sections respectively. Two independent working condition material grade versions are also optional for each casing OD 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, jet nozzle quantity & circumferential layout phase angle adjustments, internal sliding sleeve stroke structural form modifications and base material corrosion resistance grade modifications 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 sliding sleeve differential jetting subs with special matching outer casing outer diameter sizes or customized shear pin breaking pressure threshold specifications, jet nozzle quantity & circumferential layout phase angle adjustments, internal sliding sleeve stroke structural form modifications, 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 all-type oilfield downhole sand jet perforation construction multi-function heavy-load intervention treatment service tools, covering sliding sleeve differential jetting subs, integrated jetting subs, coiled tubing 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 sliding sleeve downward sliding stroke actuation load fatigue, jet nozzle fluid circulation flow performance calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target matching outer casing outer diameter size, required shear pin breaking pressure threshold specification, jet nozzle quantity & circumferential layout phase angle selection, internal sliding sleeve stroke structural form demands, thread connection customization requirements, 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 downhole sand jet perforation construction operation guidance, with clear confirmation reminder for actuation mode selection, jet nozzle layout parameter setting and thread connection customization requirements according to different well construction operation scheme demands during order placement.
