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{"title":"API Standard Casing Guide Shoe Machining Processing Type Unique Design","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/4e\/60\/d3e569994b5beba8eb9358ed1b7b-200x200-1\/api_standard_casing_guide_shoe_machining_processing_type_unique_design.jpg","attrs":{"Brand Name":"Puyang Zhongshi Group","Model Number":"4 1\/2\"~36\"","Certification":"API,ISO,QHSE","Place of Origin":"China"}}
The stage collar is a mechanical device utilized for two-stage cementing operations. It primarily comprises a two-stage coupling body, a first-stage plug, a baffle plate, and either a free fall opening plug (for non-continuous processes) or a pump-down opening plug (for continuous processes), along with a closing plug. Its purpose is to facilitate efficient and controlled cementing processes.
1. The closing sleeve of the stage collar is equipped with an out-closing structure and a locking device to ensure secure engagement once closed.
2. The stage collar is designed to prevent the accumulation of liquid in the loculum, a small compartment or chamber, during opening or closing. This prevents any liquid from obstructing or interfering with the proper functioning of the stage collar during operation.
3. It is essential for the inner diameter (i.d.) of the upper and lower sub of the stage collar to match that of the casing in order to protect its body during drill-out operations when the drill bit goes down. This matching i.d. creates a protective barrier, mitigating the risk of potential damage.
4. All accessories of the stage collar, such as drillable rubber or aluminum materials, are designed to be anti-rotational and facilitate easy drill-out processes.
5. The stage collar can be equipped with a pumping-down plug, enabling efficient execution of continuous processes.
PRODUCT SPECIFICATIONS
Specifications, (in)
5 1/2"
7"
9-5/8"
13 3/8"
Max O.D., mm
Φ170
Φ208
Φ283
Φ381
Drill-out I.D., mm
Φ122
Φ155
Φ220
Φ315
Overall Length, mm
1082
1182
1222
1280
Rated Load, t
140
170
210
300
Sealing capacity, MPa
25
25
25
25
Opening Pressure, MPa
13
13
13
14
Closing Pressure, MPa
5
5
5
5
Lower Sliding Sleeve I.D., mm
Φ85
Φ115
Φ176
Φ203
Upper Sliding Sleeve I.D., mm
Φ95
Φ125
Φ197
Φ285
Company Information
Puyang Zhongshi Group Co., Ltd is a professional manufacturer of various oilfield equipments and cementing accessories since 1997, restructured enterprise of SINOPEC. Our group have 10 years export experience and 9 subsidiary factories, more than 500 employees. We are the first-class supplier of resources market of SINOPEC and CNPC.
We have the certificates of API 5CT, API 10D, API 11E, API 6A, API 11AX, ISO 9001 and ISO 14001. Our foreign customers are mainly from America, Central Asia, Russia, Southeast Asia, Middle East, etc.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
1997
Total Annual:
5 million-10 million
Employee Number:
570~600
Ecer Certification：
Verified Supplier
Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars.
We have competitive price of o... Puyang Zhongshi Group Co., Ltd., restructured from SINOPEC in 1997 has 20 years experience on manufacturing petroleum machinery products . The company registered capital is 10 million U.S. dollars, with annual export 30 million U.S. Dollars.
We have competitive price of o...
