API Downhole Bypass Valve Oil Well Drilling Operation Fluid Circulation Controller

• Customization: Available
• Transport Package: Wood Case or Stantdard Sea Packing
• Specification: O. D. customized
• Origin: China
• HS Code: 8431431000
• Production Capacity: 5000000PCS

Product Description

During drilling operation, when a well kick takes place and bit bore is blocked, the by-pass valve can be opened to allow fluid circulation and well killing. Before drilling in a gas formation, the By-Pass Valve shall be located near or on the bit.

When well kick take place and pump pressure is too high or blocked, the following
steps can be taken to open the By-Pass Valve :

• Discharge Kelly and drop in a steel ball (or a Nylon ball) which is carried by tool;
• Connect with Kelly;
• Put ball into retainer by pump circulation;
• When fluid is closed, the shear pin can be sheared off by adding 0.5~1.5MPa higher pump pressure than original pump pressure;
• After pin is sheared, the seal sleeve move down to open the discharge hole and pump pressure come to drop down , then normal circulation and well killing operation can be started.

When ordering please specify:

• O.D. of body;
• Connection;
• Pump pressure required to shear off pin (per customer requirement)

Specifications - By-Pass Valve

Model	Product Code	O.D. (mm)	Seal Sleeve (mm)	Top Connection (Box)	Bottom Connection	Pump Pressure of shear-off shear pin	O.D. of Steel Ball (mm)
PTF105	F061053	105	32	NC31	NC31 (PIN)	3-10 MPa	35
PTF121A	F061213	121	38	NC38	NC38 (PIN)	3-10 MPa	45
PTF127	F061273	127	38	NC38	NC38 (PIN)	3-10 MPa	45
PTF127C	F061272	127	38	NC38	3 1/2 REG (BOX)	3-10 MPa	45
PTF159	F061591	159	49	NC46	NC46 (PIN)	3-10 MPa	54
PTF159B	F061594	159	49	NC46	4 1/2 REG (BOX)	3-10 MPa	54
PTF168	F061681	168	50.8	NC50	NC50 (PIN)	3-10 MPa	57
PTF203	F062031	203	62	6 5/8 REG	6 5/8 REG (PIN)	3-10 MPa	65

Detailed Photos

 

Certifications

Packaging & Shipping

 

Company Profile

Our Advantages

Tianhe principle is to offer high quality products at competitive price to benefit our customers and the industry in the long run.
We are the Leading manufacturer in China since 1973 for drilling /fishing /milling equipment for oil and gas.
We have established a complete quality control system, all products& equipments manufactured as per international standard and API standard.
Competitive Advantages
1. We offer high quality products at competitive price.
2. Shortest delivery time & Flexible payment terms.
3. Full range of drilling /fishing /milling equipment for oil and gas.
4. Timely after-sale service.
5. Imported International brands Machines such as Japan Mazak machining center, Austria WFL machining center etc
6. Complete quality control system, offices and testing equipment.
 

FAQ

Dear  customer,

Thanks for your time of visiting us on made in china, if you have any further questions and needs, please kindly inform us by inquiry online or contact us by below information.

We look forward to your kind reply, thanks very much.

Ms. Dongyan
Sales Manager

Tianhe Oil Group Huifeng Petroleum Equipment Co., Ltd.