DST tools 5" RD Bypass Pressure Test Valve( Drill stem testing)
Operate: full-opening, single-shot annulus operated
Usage:oil well testing
Working Condition : High pressure high temperature(HPHT)
Product model: RD Bypass Pressure Test Valve
Application: oil well testing
Working pressure: 10000psi ~ 15000psi
The rupture disk (RD) bypass pressure test valve is a full-opening, single-shot annulus operated valve. The tool functions as a pressure testing and a bypass valve. The tool is commonly used at the start of a drillstem test to allow the toolstring to be pressure tested against the closed ball valve. This tool also has a bypass below the ball that allows the toolstring to be "stung in" to a production packer. To operate the tool, annulus pressure is applied, rupturing the disk, closing the bypass ports, and opening the ball valve.
Features and Benefits
The tool is composed of three sections:
• The ball valve section is at the top of the tool and consists of a ball valve,
operating pins, and collet fingers.The collet fingers expand, allowing the power mandrel to continue traveling up to open the ball valve and close the circulating ports.
• The power section consists of a power mandrel case and rupture disk available for a wide range of
pressure applications. The rupture disk bursts at a predetermined pressure, allowing annulus pressure
to be applied to a differential area on the power mandrel. The power mandrel moves up, first pushing the
ball valve open, and then closing a set of circulating ports.
• The bypass section is at the bottom of the tool and consists of a set of ports and a power mandrel. When the rupture disk bursts, the power mandrel moves up, closing off the ports and communication between the annulus and the toolstring
The rupture disk bypass pressure test valve is normally set to operate at a pressure around 1000 psi (69 bar) above well hydrostatic at the tool. This allows the tool to be run in and then operated when pressuring up on the first annulus pressure cycle. Another method of running the tool is to use it for pressure testing the toolstring and then use well hydrostatic while running in to operate the tool automatically. When running the tool in this mode, it is acceptable to use shear pins to determine the operating pressure. If an accurate operating pressure is required, the rupture disk must be used.
Note: This tool should have the only closed ball valve while running in. If any other closed ball tools are run in the string, a bypass must be run to avoid an air chamber between the closed balls.
The air chamber trapped between the balls could cause the tool to not operate, operate a very high pressure, or cause damage to the tool.
1. Halliburton type, all could change with Halliburton parts.
2. All equipments are produced according to API standard NACE MRO175-2002
Below are spec for you reference:
Xi'an KINGWELL OILFIELD MACHINERY Co., Ltd. (KINGWELL) is a highly reputable supplier for oilfield equipment and services to Oil & Gas industries and provides complete solutions.
With over 10 years developing, we were developed from the beginning drilling service to manufacture factory who produce OCTG, DST tools and Solid control products.
KINGWELL have experienced team, stronger enough to meet any challenge, we do believe honest is the base of business and cooperation; our aim is to build solid relationship with any part of honest. kingwell can provide highly efficient services to its clients resulting in accurate and timely deliveries at the best prices. Our products have been exported to Europe, American and Middle East.
Here we got some prise as follows.
Design & Development
Kingwell has an ongoing relationship with Xi'an Petroleum University and built up long term cooperation with China Aerospace Group for more than 10 years. Design Department is familiar with CAD and Pro-E facilities and has on rolls qualified & experienced engineers. Now, they are engaged in development of new products as required in the market place. Kingwell' products are validated in-house in a Test Well, a Sub-surface Type Test Facility with simulated well conditions up to 15000 psi Differential pressure , 400°F and Max 450°F.
Equipped with latest machining facilities like CNC 3-axis Turning centers, CNC 4-axis milling centre, high temperature heat treatment furnaces, Centre lathe machines, Deep Hole Drilling, Boring & Honing machines, our company could meet long term production target and be governed efficiently by well-qualified and experienced Board of Directors and Engineers.
The following is the manufacturing workshop.
Inspection and Test Facilities
We own the world-class facilities with professional laboratory technicians. The main facilities are Surface Testing (Hydraulic Testing Unit), high temperature heat treatment furnaces, API Gages (Master & Working), Profile Projector, tensile testing machine, pressure sensor and data acquisition system, Universal Testing Machine, Hardness Tester, Nitrogen Pump, Function Test Pump, Ultrasonic Thickness Tester etc. All the goods must be tested by several processes and must be qualified when packed.
The followings are some pictures of Test Facility
Payment:TT/LC:30% advance payment.70%before shipment
Warranty: Warranty period is 1 year after installation.
Minimum order: 1 set
Packaging: wood case or steel carton
Delivery Date: within 1-2 month(s) after receiving prepayment
Logo: KW, we can produce according to customer requirements.
Technical Documents: We can provide technical documents according to your requirements.
Additional service: Customers are served to test our products in our factory upon request.
We are looking forward towards a long lasting association with your esteemed organization for our mutual benefit. Any reasonable documents with the shipments depend on your requirements. Please contact us for any enquiry within our manufacturing scope and we will be happy to serve you by supplying quality products.