Bow spring casing centralizers
Bow spring centralizers, both welded and non-welded is to help center the casing in the wellbore, allowing even distribution of the cement around the casing during cementing operations according to API10D standard size from 4-1/2" to 20".
Feature :
A) Designed for high restoring force and low starting& running force.
B) End collars are designed with self-locking action,which are easy to assemble.
C) Undergo special coating process to prevent from rust.
D) Can be shipped in half assemble condition for economy in shipping and storage costs.
E) Specification:4-1/2" to 20". any special size or combination available on request.
Technical parameters:
No
Specification
Bow type
ID(mm)
Length(mm)
Max OD
(mm)
Bow spring
1
5-1/2"*8-1/2"
I .â…¡
142-148
600±50
225±5
5
2
7"*8-1/2
I .â…¡
181-186
600±50
235±5
6
3
9-5/8"*12-1/4"
I .â…¡
250-255
600±50
330±5
8
4
10-3/4"*12-1/4"
I .â…¡
274-276
600±50
330±5
9
5
13-3/8"*17-1/2"
I .â…¡
342-347
600±50
450±5
11
6
20"*26"
I .â…¡
510±1
600±50
660±5
12
Note :â… (single bow),â…¡(double)
Cementing plugs:
Cementing plugs from high performance material such as rubbers and phenolic resins.our cementing plugs are specially designed with a positive wiping action to ensure that the casing is clean, we have both conventional standard plugs and non-rotating plugs.
Top plugs
The top cementing plug is designed to exert continuous pressure on the casing wall. The core is made of aluminum or phenolic depending on the application and well conditions, the tapered base fits the cavity of the bottom plug initiating a positive seal. A solid rubber top plug is also available.
Bottom plugs:
Like the top cementing plug,the fins and tail section provide positive wiping action. Fins also serve as a seal while cementing. The core of bottom plug is alao made of special material such as aluminium or phenolic resins depend on the application and well conditions, a rubber diaphragm at the top bottom plugs ruptures after the plug is seated allowing cement to flow through
TECHNICAL PARAMENTERS
Type
Sizes
Working temperature
Working pressure
Burst pressure
hardness
Top plug&bottom plug
4-1/2",5-1/2",6-5/8",7",8-5/8",9-5/8" standard/ non rotating
-30℃ to 150℃
≥15MP
1MP-2MP
75-95
13-3/8",20"standard/ non rotating
-30℃ to 150℃
≥10MP
1MP-2MP
75-95
Float collar and float shoe
Float equipment serves the backbone of casing equipment used during primary cementing operations, float equipment guides the casing to total depth and prevents contaminated mud from entering the casing. Also,it provides a landing point for casing wiper plugs, reinforces the lower end of the casing string, and ensures greater accuracy of cement slurry displacement.
FEATURES:
API 5CT,API 5B,API RP 10F rating,china petroleum department standarc SY/T5618-2000.
Rounded nose profile helps guide the casing string(only for float shoe).
The Valve is made with phenolic material and molded with high strength concrete. Both the calve and concrete are easily drillable with PDC or rock bits.
High strength design ensure excellent performance for flow endurance and back pressure holding.
Automatically non-rotational groove design ensures corresponding cementing plugs drilled out quickly(only for non-rotating float collar).
Single valve and double valve versions are available. Spring structure and bal structure valve are available: insret type and normal type are available.
Material and size:
API CASING GRADE: J55,K55,N80,P110,L80,etc.
SIZE VARY FROM 4"TO 20"
AVAILABLE CONNECTIONS:
API5RD CONNECTIONS:LTC,STC,BTC
Solid rigid casing centralizers
Rigid centralizers are an integral part of the cementing process. They provide the mechanism that centers the casing in the hole and allows uniform cement flow around the casing to help protect it at all point. Several styles of centralizers are available for matching different well specification and hole size,including turbulence generating designs that help clean the annulus and distribute the cement more evenly and uniformly. All models offer ample clearance for fluid passage and are extra effective in centering the casing, even in highly deviated hole and improve cement flow by reducing the effects of channeling.
Technical parameters
Model
Style
Max OD(mm)
ID(mm)
Length(mm)
GF4-1/2x6
â… .â…¡.â…¢
145
116.5
200
GF5x6
â… .â…¡.â…¢
145
129
200
GF5-1/2x8-1/2
â… .â…¡.â…¢
205-210
142
200/300
GF6-5/8x8-1/2
â… .â…¡.â…¢
205-210
171
200/300
GF7-8-1/2
â… .â…¡.â…¢
205-210
181
200/300
GF7-9-1/2
â… .â…¡.â…¢
225-235
181
200/300
GF7-9-5/8
â… .â…¡.â…¢
225-235
181
200/300
GF9-5/8x12-1/4
â… .â…¡.â…¢
300-305
248
200
GF13-3/8-17-1/2
â… .â…¡.â…¢
430-435
346
200
Note: GF series rigid casing centralizer, classified as straight strip type (typeâ… ),spiral(type â…¡),roller type(type â…¢).
Stop collar
Stop collar is used to hold centralizers or cement baskets on any position casing, which ensures the position of centralizers or cement basket to meet the design, the stop collars are available in two types hinges type,slip on type, the stop collars can be installed on casing to limit the axial movement of centralizers and cement baskets.
Usage
1. Fastening screw stop ring when use, first set into the casing ,and then using a wrench to tighten the screws.
2. Fixed screw type when use ,first set into the casing,and then insert screws,Type in with a hammer.
3. Snap fit stop ring, direct stop ring button on the casing,use pin lock, then knocked into the screw.
Hinged bolted stop collars
An economical collar suitable for sub-critical annular tolerances,available in the size range 4-1/2" to 20",it has a cross bolt design which makes it an efficient and user friendly device.
Hinged spiral nail stop collars
Available in the size rang 4-1/2"-20",this device can be in both upset and non-upset casing to provide maximum clearance during rotation. It has a grove in the middle into which a spiral nail can be driven for improved grip on the casing, the broader firmly grips the collar into position around the casing.
Hinged stop collars with set screw
Available in the size rang 4-1/2" to 20", this device has a high cost-utility ratio. This hinged collar with a row of set screw position easily and firmly around the casing.
Slip on stop collars with set screw
This slip-on set screw device is recommended for small hole operations,available in size rang 2-7/8" to 20"and is gripped by a row of screw, this is a heavy duty device.
Cementing tools Henan Dongfanglong Machine Manufacture Co., Ltd , https://www.dfloilm.com
Super High Sensitivity Walk Through Metal Detector/ Door Gold Metal Detector
**Product Specifications**
- **Model No.:** AT300B
- **Trademark:** Safeway System
- **Transport Package:** Wooden
- **Specification:** CE, ROHS, SGS
- **Origin:** China
- **HS Code:** 8543709100
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**Super High Sensitivity Walk Through Metal Detector / Door Gold Metal Detector**
**Most Friendly Operation Interface – Model No.: AT300B**
----------------------Walk-through Metal Detector
--------------------------------------------------------------------------------------------------------------------------
**Perfect Weather-Proofing Design for Outdoor Use**
**Easy to Install, Simple to Operate**
**Technical Specification**
| Technical Specification | Description |
|------------------------|-------------|
| Electrical Current | AC 100V ~ 240V, 50/60Hz |
| Power | 10W |
| Work Environment | -20°C ~ +45°C |
| Gross Weight | 70kg |
| Outer Frame | 2220mm (h) x 820mm (w) x 610mm (d) |
| Inner Frame | 2000mm (h) x 700mm (w) x 610mm (d) |
**Key Features**
- **IP55 Weatherproof Design:** Suitable for outdoor use.
- **Remote Control Operation Only:** Ensures secure and controlled access.
- **Two LED Light Bars on Both Door Panels:** Provides alarm indication based on the height or body position. Offers 6/12/18 pinpoint zones for accurate detection from head to toe.
- **Advanced Broadband Detection Technology:** Capable of detecting both ferrous and non-ferrous materials.
- **Sensitivity Adjustable from Level 0 to 299:** High sensitivity can detect a clip; low sensitivity detects larger items like knives, guns, copper, aluminum, zinc (over 150g), while ignoring metal in belt buttons and shoes.
- **Shock-Proof Design:** Minimizes false alarms.
- **Sound and Light Alarm:** Increases visibility and awareness during detection.
- **Intelligent Traffic and Alarm Counters:** Tracks passenger flow and alarm occurrences.
- **Tamper-Proof Protection:** Password-protected operation ensures only authorized personnel can make changes.
- **Adjustable Operating Frequencies:** Eliminates interference from X-ray units, radios, and other electrical devices.
- **Minimum Distance Between Two Walk-Thru Gates:** 0.3 meters at low sensitivity, 0.5 meters at high sensitivity.
- **Harmless to Pregnant Women and Heart Pacemakers:** Safe for all users.
- **Optional Connectivity:** Can be connected to a computer, camera, turnstile, etc., for enhanced security systems.
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**Features of Super Metal Scanner Door:**
1. **Materials and Displaying:** Made with fireboard material and an ultra-large LED display panel, making it easy for operators to monitor and manage.
2. **Six Detecting Areas:** Six overlapping detection zones allow for simultaneous alarms and precise identification of metal objects' locations.
3. **Multilingual Operation:** The LCD screen supports both English and Chinese menus, offering convenience for international users.
4. **Adjustable Sensitivity:** With a range from 0 to 100, it allows users to set sensitivity levels, effectively reducing false alarms caused by small items like coins, keys, jewelry, and belt buckles.
5. **High Anti-Interference Capability:** Utilizes digital, analog, and balanced technology to prevent false or missed alarms, enhancing overall performance.
6. **Password Protection:** Only authorized personnel can operate the system, ensuring a high level of security.
7. **Statistical Counting Function:** An intelligent counter tracks the number of people passing through and the frequency of alarms.
8. **Safe for Human Body:** The device is harmless to individuals with heart pacemakers, pregnant women, magnetic floppy disks, and recording tapes.
9. **Convenient Installation:** The EAST series features an integrated design, allowing for quick installation or disassembly within 20 minutes.
This walk-through metal detector is ideal for airports, stadiums, schools, and other high-security areas where reliable and sensitive detection is essential. Its advanced features and user-friendly interface make it a top choice for modern security solutions.