Circulating Sleeve Manufacturer | SpectraMax Flow Control | Maximus OIGA
Maximus OIGA is a well-completion equipment manufacturer producing circulating sleeves (sliding side doors) for oil, gas, and geothermal wells. The SpectraMax flow-control series delivers tubing-mounted sleeves that establish or shut off communication between the tubing and casing annulus, manufactured under an API Q1 quality management system.
Complete Configurations & Capabilities
Our SpectraMax Circulating Sleeve Range
The SpectraMax circulating sleeve range includes slickline-shiftable and hydraulically-actuated configurations covering tubing sizes from 2-3/8 inch through 5-1/2 inch. Each sleeve carries equalizing ports to protect packing during opening, a wireline nipple profile for shifting-tool engagement, and standard B or S-type shifting-tool compatibility for field-proven slickline or coiled-tubing intervention.
| Model Configuration | Tubing Size |
|---|---|
| Open-Up (jar-up to open) | 2-3/8″ – 5-1/2″ |
| Open-Down (jar-down to open) | 2-3/8″ – 5-1/2″ |
| Invertible (flip to reverse direction) | 2-3/8″ – 5-1/2″ |
| High Flow-Area | 2-7/8″ – 5-1/2″ |
| Hydraulically-Actuated (premium) | 2-7/8″ – 5-1/2″ |
Standard seal bore sizes cover 1.87″, 2.25″, 2.75″, 3.68″, 3.81″, and 4.50″ to match common production-tubing nipple profiles. Multi-sleeve completion strings use MD-2 / MB self-releasing shift tools to address each sleeve in sequence without pulling between runs.
Ratings, Materials & Performance Data
SpectraMax Circulating Sleeve Specifications
SpectraMax circulating sleeves are rated for continuous service at pressures up to 10,000 psi and temperatures up to 375°F, with optional high-temperature builds using non-elastomeric seal technology for hostile environments. Sleeves are machined from alloy steel conforming to NACE MR0175 / ISO 15156 sour-service requirements on customer request, with full material traceability from bar stock to finished assembly.
| Parameter | Standard Build |
|---|---|
| Working pressure | 10,000 psi |
| Continuous service temperature | 300°F (149°C) |
| Body material | Alloy steel (AISI 4140 / 4145) |
| Seal system | Elastomeric — HNBR, FKM |
| Sour-service (H₂S) | Optional NACE MR0175 / ISO 15156 trim |
| Tubing size coverage | 2-3/8″ through 5-1/2″ |
| Seal bore sizes | 1.87″, 2.25″, 2.75″, 3.68″, 3.81″, 4.50″ |
| Thread connections | API premium (EUE, NUE, PH-6, VAM) |
| Documentation delivered | MTR, dimensional report, pressure-test cert, COC |
Actuation force to open or close a standard sleeve is typically 10,000+ lb piston force, with surface pressure differential in the low hundreds of psi when the sleeve is new. Differential rises as scale or asphaltene accumulates on the inner barrel, and the equalizing ports built into every SpectraMax sleeve prevent packing damage during pressure equalization.
Standards Scope for Sliding Sleeves
Certifications: API Q1, ISO 9001 & NACE
Procurement teams ask one question first: are you API certified and ISO compliant? Maximus OIGA operates under an API Q1-licensed quality management system and holds ISO 9001 certification — both audited at the manufacturer level. Every sleeve is designed, manufactured, inspected, and pressure-tested under this QMS, with material test reports, dimensional inspection reports, and pressure-test certificates shipped against every order.
Standards scope for sliding sleeves deserves a plain-language note. The API 14A subsurface safety valve specification explicitly excludes sliding sleeves from its scope. ISO 14310 and API 11D1 — the product specifications for packer and bridge plug design — also do not govern sliding sleeves. Vendors claiming ISO 14310 compliance for their sleeves are misreading the standard. The applicable product-level certification for Maximus sleeves is API Q1 at the manufacturer-QMS level and ISO 9001 at the company level, with NACE MR0175 / ISO 15156 applied at the material level for sour service.
Why this honest distinction matters: design-control, material traceability, and inspection rigor come from the manufacturing QMS, not from a product-level badge that does not apply. Every SpectraMax sleeve is serialised to its heat number and mill certificate from bar stock through finished assembly.
API Q1 Quality Management
API-licensed quality management system for petroleum manufacturing. Every sleeve is designed, machined, inspected, and pressure-tested under this QMS. Manufacturer-level certification — audited.
ISO 9001 Company QMS
General quality management at the company level. Operates alongside API Q1 to cover the non-petroleum-specific aspects of manufacturing, documentation, and continuous improvement.
NACE MR0175 / ISO 15156
Material-level standard for sour-service (H₂S) hydrocarbon environments. Applied to sleeve body, trim, and elastomer selection on customer request for H₂S wells.
Selective Production, Circulation & Workover
Circulating Sleeve Applications
The SpectraMax range covers conventional oil and gas, heavy oil (SAGD and CSS), geothermal wells, coalbed methane, and sour-service fields. Selective zonal completions use a sleeve paired with packers above and below each zone — open one sleeve to produce or test that zone, close to isolate.
A blanking plug landed in the integral wireline nipple above the sleeve supports tubing testing or well shut-in without pulling the completion string. For workover kill-fluid circulation, the High Flow-Area configuration halves the time needed to circulate a full tubing volume.
Injection wells — waterflood and chemical — use circulating sleeves for zone-selective fluid placement. Open the target-zone sleeve, close adjacent sleeves, inject. The same mechanical principle that controls production from a zone controls injection into it, which is why the sleeve range scales cleanly across both application classes.
| Application | Recommended Configuration |
|---|---|
| Selective zonal production / testing | Open-Up + packer pair |
| Circulating kill fluid before workover | Open-Down or High Flow-Area |
| Unloading completion fluid on start-up | Open-Up standard |
| Chemical treatment — corrosion or scale inhibitor | Standard slickline-shiftable |
| Pressure equalization across deep-set packer | Invertible / Open-Down |
| Gas-lift valve change-out equalization | Standard slickline-shiftable |
| Waterflood injection — zone-selective | Hydraulically-actuated |
| Hostile / sour service (H₂S) | Non-elastomeric seal + NACE trim |
In-House Facility & Test Cell
Manufacturing, Testing & Quality Control at Vadodara
Completion teams that need a manufacturer with in-house testing — not a reseller with drop-ship arrangements — work with Maximus OIGA for exactly that reason. The Vadodara, Gujarat facility runs dedicated CNC machining, elastomer processing and compounding, and a purpose-built pressure and temperature test cell rated to 15,000 psi and 500°F.
Test-cell rating exceeds the current SpectraMax sleeve product envelope, which leaves headroom for higher-specification builds on engineering order. Every sleeve is pressure-tested before shipment — not sampled, not outsourced — and documentation is produced under the same API Q1 QMS that governs the machining and inspection steps.
Material traceability runs end-to-end: every serial number is traceable to the heat number on the raw bar stock and to the mill certificate that entered the facility. MTRs, dimensional inspection reports, pressure-test certificates, and the COC ship with every order.
The Maximus Advantage
Why Choose Maximus OIGA for Circulating Sleeves
Well Completion Specialist
Depth over breadth. The product roster is packers, bridge plugs, flow control equipment, and liner hangers — no wellhead line, no Christmas tree catalogue, no wireline pressure-control equipment competing for engineering attention. Every hour spent in product design is a completion hour.
Integrated SpectraMax Ecosystem
The SpectraMax flow-control series integrates directly with SpectraMax packer systems. Procurement engineers consolidating the completion string can source sleeves, nipples, and packers from one manufacturer under one QMS with one qualification audit.
In-House Test Cell
Pressure and temperature testing happens on-site in Vadodara, not at a third-party lab. Every sleeve is pressure-tested before shipment. The test cell is rated to 15,000 psi and 500°F — well above current product ratings, leaving headroom for HPHT engineering-order builds.
200+ Installations
SpectraMax and PAK VI completion equipment has been installed in 200+ wells across India, the Middle East, and Southeast Asia — field-proven track record, not laboratory-only data.
Custom Engineering
Sleeves are built to customer-specified seal-bore, tubing size, thread connection, and material combinations on a quote basis. Direct engineer-to-engineer contact with the applications team removes the sales-intermediary lag that slows procurement cycles.
Honest Standards Scope
API Q1 and ISO 9001 at the manufacturer level, NACE MR0175 / ISO 15156 at the material level for sour service. No misapplied ISO 14310 or API 11D1 claims — those specifications govern packers and bridge plugs, not sleeves.
For the broader range, see Maximus OIGA’s well completion equipment catalogue.
Global Presence
200+ Installations Across India, Middle East & Southeast Asia
SpectraMax and PAK VI completion equipment has been installed in 200+ wells across India — onshore and offshore — the Gulf region of the Middle East, and Southeast Asia. Customers include national oil companies, private operators, and completion service companies running both conventional and sour-service completions.
India
Onshore and offshore installations with national oil companies, private operators, and completion service companies across conventional and sour-service completions.
Middle East
Gulf-region deployments including national oil company completions and independent operator programs.
Southeast Asia
Repeat-order customers in the region typically cycle back for adjacent equipment — packer systems, landing nipples, and bridge plugs for the same completion.
Installed sleeve configurations span the full range — slickline-shiftable standard builds for conventional production strings, high-temperature non-elastomeric builds for geothermal and steam-injection applications, and NACE-compliant sour-service builds for H₂S wells. Named client references are available on direct request, subject to customer disclosure permission.
Common Questions
Frequently Asked Questions About Circulating Sleeves
A circulating sleeve — also called a sliding sleeve or SSD (sliding side door) — is a downhole flow-control device installed in the production tubing string during well completion. Its function is to establish or shut off communication between the tubing ID and the casing annulus. The sleeve is opened or closed by a shifting tool run on slickline, wireline, or coiled tubing; hydraulically-actuated variants operate on tubing or annulus pressure. Circulating sleeves are used for circulating kill fluid, unloading completion fluid, selective zonal production and testing, and equalising pressure across packers. SpectraMax sleeves are available in slickline-shiftable and hydraulically-actuated configurations for tubing sizes 2-3/8″ through 5-1/2″.
Functionally the two are identical. “Circulating sleeve” emphasises the circulation use case — moving fluid between tubing and annulus — while “sliding sleeve” emphasises the mechanism, an inner sleeve that slides to open or close communication ports. Some manufacturers reserve “sliding sleeve” for larger communication-port variants and “circulating sleeve” for smaller-port models, but that distinction is not industry-wide. The term “sliding side door” (SSD) is used interchangeably. SpectraMax documentation uses both terms, following the dominant customer convention in each region — “circulating sleeve” in Indian and Middle East markets, “sliding sleeve” in US and European markets.
Standard SpectraMax configurations are rated for 10,000 psi working pressure at 300°F continuous service. The high-temperature build — using non-elastomeric seal technology (chevron PEEK or graphite) — is rated to 375°F (190°C) continuous service, matching premium industry benchmarks. Sour-service (H₂S) builds to NACE MR0175 / ISO 15156 are available on customer request. Higher-specification builds — up to 15,000 psi — are available by engineering order; the Maximus in-house test cell is rated to 15,000 psi and 500°F, which leaves headroom above current product ratings for future HPHT builds. The exact rating for a specific sleeve model is specified on the technical data sheet provided with the quote.
Maximus OIGA operates under an API Q1-licensed quality management system and holds ISO 9001 certification — both audited at the manufacturer level. Every sleeve is designed, manufactured, inspected, and pressure-tested under this QMS, with MTRs, dimensional inspection reports, and pressure-test certificates shipped with every order. One accuracy note procurement engineers respect: API 11D1 / ISO 14310 is the product specification for packers and bridge plugs — not sleeves. API 14A covers subsurface safety valves and explicitly excludes sliding sleeves from its scope. For sleeves, the applicable certifications are the manufacturer-level API Q1 and ISO 9001, plus material-level NACE MR0175 / ISO 15156 for sour service. Vendors claiming ISO 14310 for their sleeves are misreading the standard.
Yes. Custom engineering is a core capability. Sleeves are built to customer-specified seal-bore, tubing size, thread connection, and material combinations on a quote basis. Standard seal-bore sizes are 1.87″, 2.25″, 2.75″, 3.68″, 3.81″, and 4.50″; non-standard bores are produced on engineering order. Thread connections include the API premium thread families — EUE, NUE, PH-6, VAM — plus alternative and proprietary threads on request. Material options cover standard alloy steel (AISI 4140 / 4145), NACE-compliant sour-service grades, Inconel, and nickel-based alloys for extreme service. Engineering lead time for custom builds varies by specification — contact the applications team directly for a timeline against a specific well design.
Request Technical Specifications & Pricing
When you’re ready to send technical specifications and pricing, use the inquiry form or contact the applications team directly. Include tubing size, seal bore, operating pressure and temperature, and service environment — that is enough to scope a quote against a standard or custom SpectraMax circulating sleeve configuration.
Email: exports@maximusoiga.com
Explore
Related Well Completion Equipment from Maximus OIGA
Completion engineers spec’ing circulating sleeves typically evaluate the full string. The Maximus OIGA range covers the adjacent and companion equipment — packers for zonal isolation, bridge plugs for temporary and permanent isolation, and liner hangers for completions that include a liner section.