Hydraulic Toe Sleeve

Our Hydraulic Toe Sleeve is a core component of multistage stimulation systems, specifically designed to initiate communication between the wellbore and reservoir in oil and gas drilling operations. It is run with the liner during well completion and enables selective stage stimulation, eliminating the need for costly and time-consuming coiled tubing (CT) or tubing conveyed perforating (TCP) operations to start toe injection. With optimized structural design and reliable performance, this tool ensures efficient and safe fracturing processes, significantly reducing operational costs and improving well productivity for unconventional oil and gas development.

1.Precise Pressure Control : Equipped with an absolute pressure-controlled rupture disc, the opening pressure is accurate and independent of formation pressure, avoiding premature or failed opening issues that often occur with conventional toe sleeves. The activation pressure can be customized according to customer requirements to adapt to different well conditions.
2.Reliable Delayed Opening Design : Optional 30-minute delayed opening mechanism (customizable) solves the problem of unreliable opening in shale oil wells, ensuring the integrity of the whole-well pressure test process and reducing economic losses. Indoor tests show that the delayed opening time has a relative error of only 5.67%, meeting strict field operation requirements.

3.High Compatibility & Versatility : Available in various sizes to match any casing specification, covering casing/liner sizes from 4 inches (101.6mm) to 5.75 inches (146.1mm) and corresponding sleeve OD and ID specifications. Suitable for both open-hole and cased-hole applications, especially designed for cemented environments with no internal or external moving parts, ensuring stable operation even with residual cement in the casing.

4.Superior Sealing & Locking Performance : Adopts high-quality metal sealing rings and advanced sealing materials that meet industry standards-ordinary rubber seals resist temperatures up to 120℃, while heat-resistant rubber seals can withstand temperatures up to 200℃, ensuring excellent sealing performance in harsh downhole conditions. Equipped with a locking mechanism that permanently locks the sleeve once opened, avoiding closure risks caused by pressure fluctuations during fracturing and production.

5.Cost-Efficient & Easy Operation : Integrates seamlessly with conventional cementing operations, no need for special cementing plugs or landing seats, simplifying the construction process. Field applications have proven that this tool can save $80,000 to $120,000 per well by eliminating unnecessary operations and reducing downtime.

The Hydraulic Toe Sleeve is run as an integral part of the shoe track during well completion and is cemented in place with the liner. Before opening, it allows operators to pressure test the casing to fracturing pressures, ensuring the integrity of the wellbore. When the wellhead pressure reaches the preset activation pressure, the sleeve shifts hydraulically, exposing the ports to the formation and establishing communication between the wellbore and the reservoir. For models with a delayed opening mechanism, the delay valve and soluble components ensure the sleeve opens at the precise time, avoiding premature activation and ensuring the smooth progress of the pressure test and fracturing operations. Once activated, the sleeve remains permanently open, allowing for diagnostic fracture injection test (DFIT) analysis and subsequent fracturing operations.

We understand that different well conditions require tailored solutions. We offer comprehensive OEM/ODM customization services to meet your specific needs:

- Custom sleeve sizes and dimensions to match your casing specifications

- Custom activation pressure and delayed opening time (0-60 minutes optional)

- Material customization (high-strength steel, corrosion-resistant alloys) for extreme downhole conditions

- Custom logo, packaging, and marking according to your brand requirements

- Sample customization and testing to verify performance before bulk order

Our Hydraulic Toe Sleeve is manufactured in strict accordance with NB/T 14020.3-2022 (Energy Industry Standard for Shale Gas Tool Equipment - Part 3: Toe Sliding Sleeve for Staged Fracturing) and international oil and gas industry standards. Each product undergoes rigorous testing before leaving the factory, including:

- Pressure resistance test and activation pressure accuracy test

- Sealing performance test under high temperature and high pressure

- Material mechanical property test and corrosion resistance test

- Delayed opening time test (for customized models)

Our Hydraulic Toe Sleeve is widely used in unconventional oil and gas development, especially suitable for:

- Shale oil and shale gas horizontal well staged fracturing operations (e.g., Eagle Ford, Utica, and Barnett shale plays)

- Cemented well completions requiring initial toe injection without CT or TCP operations

- Long horizontal section horizontal wells that require strict wellbore integrity testing and reliable toe opening

- Open-hole and cased-hole multistage stimulation systems, replacing the first-stage perforation operation to improve construction efficiency

Q: What materials are used in the Hydraulic Toe Sleeve?

A: The main body is made of high-strength steel complying with GB/T 19830 standards, and the sealing parts are made of ordinary or heat-resistant rubber with excellent oil resistance and high-temperature resistance, meeting the requirements of downhole harsh environments.

Q: Can you provide samples before bulk order?

A: Yes, we can provide customized samples. The sample lead time is 7-10 working days, and we can arrange performance testing according to your requirements.

Q: What is the MOQ and delivery time?

A: The MOQ is 1 piece for customized orders, and 10 pieces for standard orders. The delivery time is 15-25 working days for standard products and 25-35 working days for customized products.

Q: How to ensure the product is suitable for our well conditions?

A: Our technical team will communicate with you in detail to confirm your casing size, operating pressure, temperature, applicable depth, and other parameters, and provide tailored solutions and performance verification reports.

Q: Do you provide after-sales service?

A: Yes, we provide 12-month after-sales service. Our technical team is available 24/7 to solve any operational problems and provide on-site technical support if needed.

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