Product Overview
The Wellhead Hydraulic Remote Control Work Window is a special wellhead safe operation channel device developed for coiled tubing velocity string running and multi-stage gas lift string installation completion construction operations.
This work window provides a fully isolated safe operation passage for on-site coiled tubing cutting construction work, and can also be deployed for assembly and disassembly operations of other types of downhole tools at the wellhead position. The opening and closing action of the window main body is driven by remote hydraulic control pipeline to realize long-distance hydraulic control operation, which effectively isolates operators from high-pressure wellhead dangerous zones and improves construction safety. A built-in mechanical interlocking safety lock structure is arranged inside the window body; the mechanical locking device can physically block the window opening action during on-site construction, effectively avoid safety hazards caused by accidental misoperation. All structural base materials meet API 6A oilfield wellhead equipment standard specifications, and all internal component surfaces that contact downhole well fluid adopt alloy materials compliant with NACE MR0175 anti-sulfide stress corrosion requirements, which can adapt to high-sulfur corrosive well fluid working environments. The standard opening stroke height of all models is fixed at 10 inches, two independent standard working pressure grade versions are available for free selection: 5000 psi and 10000 psi, all standard specifications adopt PSL3 product specification grade. Customized higher working pressure grade can be provided upon customer special construction environment requirements.
The Wellhead Hydraulic Remote Control Work Window 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 install the work window on the wellhead upper connecting flange, connect the remote hydraulic control pipeline to the window hydraulic drive port, input hydraulic control pressure to drive the window body to open and close, the internal channel forms an isolated safe operation space, which can carry out coiled tubing cutting or downhole tool assembly/disassembly construction work, no additional complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed, shortening wellsite operation time and reducing human error risks.
The standardized product lineup covers two standard working pressure grades of 5000 psi and 10000 psi, fixed 10-inch opening height, matching standard wellhead upper flange sizes of 2 9/16", 3-1/16" and 4-1/16", all models adopt PSL3 product specification grade; customized higher working pressure grade can be provided upon customer demand.
Complete Technical Specification Table
| PN Part Number | Nominal Wellhead Flange Size | Working Pressure Grade (psi) | Standard Opening Stroke Height | Working Condition Grade | Product Specification Level |
|---|---|---|---|---|---|
| L5112560120 | 2 9/16" | 5000 psi | 10" | STD Standard | PSL3 |
| L5113060120 | 3-1/16" | 10000 psi | 10" | STD Standard | PSL3 |
| L5114060120 | 4-1/16" | 10000 psi | 10" | STD Standard | PSL3 |
Note: Customized higher working pressure grade can be provided upon customer special construction environment requirements. All standard models adopt PSL3 product specification grade; all standard opening stroke height is fixed at 10 inches, two standard working pressure grades 5000 psi and 10000 psi are optional, matching three standard wellhead upper flange sizes 2 9/16", 3-1/16" and 4-1/16".
Core Features & Advantages
Remote Hydraulic Pipeline Drive Window Opening/Closing Design: The opening and closing action of the window main body is fully controlled by distant hydraulic pipeline to realize long-distance hydraulic control operation, which effectively isolates operators from high-pressure wellhead dangerous zones and improves construction safety.
Built-In Mechanical Interlocking Anti-Misoperation Safety Lock Design: The mechanical locking device can physically block the window opening action during on-site construction, completely eliminate safety hazards caused by accidental misoperation, and enhance on-site construction operation safety.
Dual Standard Compliance Corrosion Resistant Material Design: All structural base materials pass API 6A oilfield wellhead equipment standard certification, all internal fluid contact parts use NACE MR0175 anti-sulfide stress corrosion alloy materials, which can adapt to high-sulfur corrosive well fluid working environments.
Fixed Standard Opening Height, Dual Optional Working Pressure Grades: The standard opening stroke height of all models is fixed at 10 inches, two independent standard working pressure grade versions are available for free matching selection: 5000 psi and 10000 psi, to adapt to different well pressure construction environment requirements.
Ultra-Simplified Wellsite Operation Logic: The wellhead hydraulic control work window has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, the operation flow is highly streamlined: only need to install the work window on the wellhead upper connecting flange, connect the remote hydraulic control pipeline to the window hydraulic drive port, input hydraulic control pressure to drive the window body to open and close, the internal channel forms an isolated safe operation space, which can carry out coiled tubing cutting or downhole tool assembly/disassembly construction work, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed to shorten wellsite operation time and reduce human error risks.
Low Routine Maintenance Design: The integral cylindrical alloy steel tool body eliminates vulnerable split assembly movable wear parts; after each wellhead coiled tubing completion construction operation, only simple surface hydraulic pipeline debris cleaning and internal window sealing contact surface wear inspection are required, no complex disassembly, internal hydraulic drive 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 running and multi-stage gas lift string installation completion construction heavy-load intervention treatments, including wellhead isolated safe channel provision for coiled tubing cutting and downhole tool assembly/disassembly operations
2. Conventional sweet crude oilfield hydraulic remote control wellhead work window coiled tubing velocity string & gas lift string installation completion construction service (STD Standard carbon steel working condition grade)
3. High-sulfur H₂S containing corrosive downhole wellbore fluid construction project coiled tubing completion construction heavy workover projects requiring H₂S sour service anti-sulfide stress corrosion alloy material grade
4. Long-term continuous hydraulic window opening/closing load safety protection for wellhead coiled tubing completion construction operation assemblies in onshore and offshore oilfield coiled tubing velocity string and multi-stage gas lift string installation remedial workover intervention projects
Standard Delivery Package
Complete hydraulic remote control wellhead work window integral cylindrical pre-assembled unit including main window body, internal hydraulic drive opening/closing mechanism and built-in mechanical interlocking safety lock assembly
Spare interchangeable internal hydraulic drive component & window sealing contact surface maintenance kit for on-site worn hydraulic part or sealing surface replacement
Full factory inspection test report including repeated hydraulic window opening/closing load fatigue resistance test, integral tensile load test, working pressure tightness sealing performance calibration test data
Product dimension drawing and official installation & operation instruction manual, with detailed on-site wellhead coiled tubing velocity string and gas lift string installation completion construction operation guidance, with clear confirmation reminder for working pressure grade selection (5000 psi / 10000 psi) according to different well pressure construction environment demands during order placement
Quality Warranty & After-Sales Service
Warranty Coverage: 12 months after factory shipment or 2000 cumulative hydraulic window opening/closing load cycles, whichever condition is reached first
Full factory inspection: Each finished hydraulic remote control wellhead work window passes integral tensile load test, repeated hydraulic window opening/closing load fatigue test, working pressure tightness sealing performance calibration test before factory delivery
Free professional technical support: Our oilfield downhole tool engineering team provides coiled tubing velocity string & gas lift string installation completion construction remedial workover tool string matching, upper wellhead flange size & working pressure grade (5000 psi / 10000 psi) selection consultation free of charge
Long-term spare parts supply: All interchangeable internal hydraulic drive component & window sealing contact surface wear maintenance accessories are stocked with competitive factory bulk pricing
Custom development service: Support custom working pressure grade specifications, customized wellhead upper connecting flange sizes, base material corrosion resistance grade modification, high-low temperature resistance index adjustment and special size hydraulic remote control wellhead work windows based on customer technical drawings
FAQ
Q1: What is the core function of a Wellhead Hydraulic Remote Control Work Window Coiled Tubing Completion Operation Safe Access Port?
The Wellhead Hydraulic Remote Control Work Window is a special wellhead safe operation channel device developed for coiled tubing velocity string running and multi-stage gas lift string installation completion construction operations. This work window provides a fully isolated safe operation passage for on-site coiled tubing cutting construction work, and can also be deployed for assembly and disassembly operations of other types of downhole tools at the wellhead position. The opening and closing action of the window main body is driven by remote hydraulic control pipeline to realize long-distance hydraulic control operation, which effectively isolates operators from high-pressure wellhead dangerous zones and improves construction safety. A built-in mechanical interlocking safety lock structure is arranged inside the window body; the mechanical locking device can physically block the window opening action during on-site construction, effectively avoid safety hazards caused by accidental misoperation. All structural base materials meet API 6A oilfield wellhead equipment standard specifications, and all internal component surfaces that contact downhole well fluid adopt alloy materials compliant with NACE MR0175 anti-sulfide stress corrosion requirements, which can adapt to high-sulfur corrosive well fluid working environments. The standard opening stroke height of all models is fixed at 10 inches, two independent standard working pressure grade versions are available for free selection: 5000 psi and 10000 psi, all standard specifications adopt PSL3 product specification grade. Customized higher working pressure grade can be provided upon customer special construction environment requirements. No complex internal movable friction components or spring assemblies are equipped, operation flow is highly simplified, widely applied for wellhead coiled tubing velocity string and multi-stage gas lift string installation completion construction operations.
Q2: What three core structural advantages does this Wellhead Hydraulic Remote Control Work Window Coiled Tubing Completion Operation Safe Access Port own?
1. Remote hydraulic pipeline drive window opening/closing design, the opening and closing action of the window main body is fully controlled by distant hydraulic pipeline to realize long-distance hydraulic control operation, which effectively isolates operators from high-pressure wellhead dangerous zones and improves construction safety; 2. Built-in mechanical interlocking anti-misoperation safety lock design, the mechanical locking device can physically block the window opening action during on-site construction, completely eliminate safety hazards caused by accidental misoperation, and enhance on-site construction operation safety; 3. Dual standard compliance corrosion resistant material design & ultra-simplified wellsite operation logic, all structural base materials pass API 6A oilfield wellhead equipment standard certification, all internal fluid contact parts use NACE MR0175 anti-sulfide stress corrosion alloy materials, which can adapt to high-sulfur corrosive well fluid working environments; the wellhead hydraulic control work window has no complex internal movable friction components, spring energy storage assemblies or differential pressure release mechanisms, only need to install the work window on the wellhead upper connecting flange, connect the remote hydraulic control pipeline to the window hydraulic drive port, input hydraulic control pressure to drive the window body to open and close, the internal channel forms an isolated safe operation space, which can carry out coiled tubing cutting or downhole tool assembly/disassembly construction work, no complex auxiliary operation steps such as drop ball delivery or shear pin impact jarring are needed to shorten wellsite operation time and reduce human error risks; the product also features complete matching wellhead upper flange size series and integral cylindrical alloy steel tool body low maintenance design to further expand applicable construction scope and reduce post-operation maintenance workload.
Q3: What wellhead flange sizes and configurable options do these Wellhead Hydraulic Remote Control Work Window Coiled Tubing Completion Operation Safe Access Ports support?
Our standard applicable wellhead upper connecting flange size range covers 2 9/16", 3-1/16", 4-1/16". Each flange size supports two independent working pressure grade versions for free matching selection: 5000 psi / 10000 psi; all models support customized higher working pressure grade upon customer request. Two independent working condition material grade versions are also optional for each flange size: STD standard carbon steel working condition grade and H₂S sour service high-corrosion-resistant alloy working condition grade. Custom base material corrosion resistance grade specifications and high-low temperature resistance index specifications are available upon customer downhole wellbore fluid H₂S concentration corrosive environment construction demands. The standard opening stroke height is fixed at 10 inches for all standard models.
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 hydraulic remote control wellhead work windows with special wellhead upper connecting flange sizes or customized higher working pressure grade specifications, base material corrosion resistance grade specifications & high-low temperature resistance index specifications 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 wellhead coiled tubing completion construction operation service tools, covering hydraulic remote control wellhead work windows, hydraulic controlled coiled tubing surface suspension hangers, ordinary manual coiled tubing surface suspension hangers, 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, bypass flow divider valves, 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 hydraulic window opening/closing load fatigue, working pressure tightness sealing performance calibration testing, with complete material inspection certification attached to each shipment. Please share your detailed technical requirements, including target wellhead upper connecting flange size, required working pressure grade (5000 psi / 10000 psi), 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 wellhead coiled tubing velocity string and multi-stage gas lift string installation completion construction operation guidance, with clear confirmation reminder for working pressure grade selection according to different well pressure construction environment demands during order placement.
